{"title":"Cloudray","description":"\u003cp\u003eCraftiche stocks 24 Cloudray products. Prices run from £40.45 to £93.20, including VAT.\u003c\/p\u003e\u003cp\u003eCraftiche is an independent UK online retailer and is not affiliated with Cloudray. Sizes, materials and specifications are shown on each product page.\u003c\/p\u003e","products":[{"product_id":"cloudray-co2-laser-lens-d18mm-fl50-8mm-pvd-znse-30w-100w-high-transmittance-meniscus-optic","title":"Cloudray CO2 Laser Lens D18mm FL50.8mm PVD ZnSe — 30W–100W High-Transmittance Meniscus Optic","description":"\u003cp\u003e\u003cstrong\u003eCloudray's D18mm FL50.8mm PVD ZnSe laser lens is a precision CO2 lens engineered for 30W–100W engraving and cutting systems, delivering high transmittance and durable double-sided coating.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis single-element meniscus lens is built from PVD-coated zinc selenide (ZnSe) and sized to a compact 18 mm diameter with a 50.8 mm focal length (2 inches). It’s designed to concentrate CO2 laser beams for cleaner cuts, sharper engraved detail and consistent focal performance across small to medium-format work areas. The lens is suitable for retrofit or replacement in CNC, laser-engraving, and cutting machines that accept D18mm optics and operate within the stated laser power range.\u003c\/p\u003e\n\n\u003ch3\u003eWhat optical performance can I expect from this 18 mm ZnSe lens?\u003c\/h3\u003e\n\u003cp\u003eYou can expect very high transmission of CO2 laser wavelengths thanks to the ZnSe material and a transmittance rating of ≥99.5%. The 50.8 mm focal length gives a useful balance between focus spot size and depth of field—helpful for fine engraving and moderate cutting tasks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial: PVD ZnSe optimised for CO2 wavelengths.\u003c\/li\u003e\n  \u003cli\u003eTransmittance ≥99.5% for efficient energy throughput.\u003c\/li\u003e\n  \u003cli\u003e50.8 mm focal length for small spot size and reasonable working distance.\u003c\/li\u003e\n  \u003cli\u003eMeniscus shape improves beam profile and aberration control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the Cloudray lens and what does the coating do?\u003c\/h3\u003e\n\u003cp\u003eThe lens receives a double-sided physical vapor deposition (PVD) coating that improves scratch resistance and reduces surface contamination. The robust coating helps extend service life and makes routine cleaning less abrasive, supporting reliability under regular production use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-sided solid coating for improved wiping resistance.\u003c\/li\u003e\n  \u003cli\u003ePVD process reduces adhesion of fumes and debris.\u003c\/li\u003e\n  \u003cli\u003eLong working life under recommended handling and maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich machines and power ratings is this lens compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis Cloudray lens is intended for CO2 laser systems rated from 30W up to 100W that accept an 18 mm diameter optic and a 50.8 mm focal length. It's commonly used in desktop and small industrial CO2 engravers and cutters when precise focus and compact optical geometry are required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible power range: 30W–100W CO2 lasers.\u003c\/li\u003e\n  \u003cli\u003ePhysical size: 18 mm diameter, 2.4 mm thickness for common mounts.\u003c\/li\u003e\n  \u003cli\u003eFits systems designed for 50.8 mm focal-length optics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install, align, and maintain this lens for best results?\u003c\/h3\u003e\n\u003cp\u003eInstall the lens centered in the lens holder with the coated surfaces facing the proper beam direction (consult machine manual). Use soft, lint-free wipes and approved cleaning fluid for maintenance, avoid touching the optical surfaces with bare fingers, and check alignment periodically to maintain cut and engraving quality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHandle with gloves or clean finger cots to avoid oils on glass.\u003c\/li\u003e\n  \u003cli\u003eClean gently with lens tissue and recommended solvent after heavy use.\u003c\/li\u003e\n  \u003cli\u003eVerify focus distance and alignment after installation and after any collision or deposit buildup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this lens is for: the Cloudray D18mm FL50.8mm PVD ZnSe lens is aimed at hobbyists, makers, and small-to-medium shops that operate 30W–100W CO2 laser systems and need a reliable, high-transmittance optic for engraving and cutting tasks. It suits anyone replacing worn optics in compact machines, upgrading to a robust coated lens for longer life, or building custom laser setups where an 18 mm diameter, 50.8 mm focal length lens is required.\u003c\/p\u003e\n\n\u003cp\u003eProduct highlights: Material — high-quality PVD ZnSe; Diameter — 18 mm (0.71\"); Focal length — 50.8 mm (2\"); Thickness — 2.4 mm (0.09\"); Shape — meniscus; Package — 1 lens; Coating — double-sided solid for wiping resistance and extended service life.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this lens handle continuous use at 100W?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it’s rated for 30W–100W systems; use proper cooling and routine cleaning to maintain lifespan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which surface faces the workpiece when installing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Follow your machine manual; typically the convex\/meniscus orientation matters for correct beam focus.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55257228280145,"sku":"B07B8X7T7G","price":40.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-view-d18mm-lens.jpg?v=1791717556"},{"product_id":"cloudray-18mm-co2-laser-focus-lens-fl38-1mm-pvd-znse-meniscus-high-transmittance-for-30w-100w","title":"Cloudray 18mm CO2 Laser Focus Lens FL38.1mm – PVD ZnSe Meniscus, High Transmittance for 30W–100W","description":"\u003cp\u003e\u003cstrong\u003eCloudray 18mm CO2 laser lens (FL 38.1mm) is a PVD ZnSe meniscus focusing optic designed to deliver high transmittance and long service life for 30W–100W CO2 laser engraving and cutting machines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis single-element focus lens is engineered for hobbyist and light-industrial CO2 laser systems that need a reliable, high-transmission optic. Fabricated from PVD-coated zinc selenide with a meniscus profile, the lens balances focal precision with durability. It is sold as one lens per package and is compatible with a wide range of popular 30–100W laser heads when the housing accepts an 18 mm diameter optic.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this 18mm lens change cutting and engraving results?\u003c\/h3\u003e\n\u003cp\u003eThe 38.1 mm focal length concentrates the CO2 beam into a tight spot, improving edge definition and detail resolution for engraving while maintaining practical kerf width for cutting. A shorter focal length compared to longer FL optics produces steeper beam convergence, which helps cut thinner materials faster and engrave fine details more crisply.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFocal length: 38.1 mm for higher detail and tighter spot size\u003c\/li\u003e\n  \u003cli\u003eDiameter: 18 mm suited to many standard laser heads\u003c\/li\u003e\n  \u003cli\u003eMeniscus shape reduces spherical aberration for cleaner cuts\u003c\/li\u003e\n  \u003cli\u003eTransmittance ≥99.5% for minimal power loss at the optic\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this lens compatible with my CO2 laser (30W–100W)?\u003c\/h3\u003e\n\u003cp\u003eYes — the lens is specified for use with CO2 lasers rated between 30W and 100W, provided the laser head accepts an 18 mm diameter optic and the system’s beam parameters match the lens focal length. Confirm your laser housing internal diameter and mounting method before ordering to ensure a secure fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible power range: 30W–100W\u003c\/li\u003e\n  \u003cli\u003ePhysical size: 18 mm diameter, 2.4 mm thickness\u003c\/li\u003e\n  \u003cli\u003eMounting: fits standard 18 mm optic seats in many laser heads\u003c\/li\u003e\n  \u003cli\u003eSold as single lens — check spare parts list for replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the PVD ZnSe coating and meniscus design valuable?\u003c\/h3\u003e\n\u003cp\u003ePVD (physical vapor deposition) coating on zinc selenide provides a rugged, abrasion-resistant finish that withstands routine cleaning and handling better than uncoated optics. The meniscus geometry improves focus quality by reducing spherical aberration and keeping the beam profile more consistent at the work surface.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-sided solid PVD coating for wiping resistance\u003c\/li\u003e\n  \u003cli\u003eZnSe substrate optimised for CO2 wavelength transmission\u003c\/li\u003e\n  \u003cli\u003eHigh transmittance (≥99.5%) reduces power loss and hot spots\u003c\/li\u003e\n  \u003cli\u003eDurable finish extends working life under normal use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and maintain the Cloudray lens?\u003c\/h3\u003e\n\u003cp\u003eHandle the lens by its edges and avoid touching the optical surfaces to preserve the coating. Clean only with appropriate lens-safe solutions and lint-free wipes; aggressive chemicals or abrasive cloths can damage the PVD finish. Verify alignment after installation to optimize beam focus and minimize stray reflections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHandle edges only; avoid fingerprints on the optic\u003c\/li\u003e\n  \u003cli\u003eClean with lens-safe solvent and lint-free wipe when necessary\u003c\/li\u003e\n  \u003cli\u003eInspect for scratches or contamination before use\u003c\/li\u003e\n  \u003cli\u003eRe-check focus and alignment after mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This Cloudray 18 mm, FL 38.1 mm CO2 lens is intended for makers, small workshops, and light industrial users running 30W–100W CO2 laser cutters and engravers who need a high‑transmission, durable focusing optic. It suits projects that demand fine engraving detail and reliable cutting performance while minimizing power loss. If your machine accepts an 18 mm optic and you want a coated ZnSe lens built for repeated handling and cleaning, this lens is a practical replacement or spare.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this lens handle a 60W CO2 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The lens is rated for 30W–100W CO2 lasers, so it is suitable for a 60W system if your laser head accepts an 18 mm optic.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I clean the Cloudray ZnSe lens safely?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Handle by edges, use lens-safe solvent and a lint-free wipe, and avoid abrasive cloths or strong chemicals to protect the PVD coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55294174855505,"sku":"B07B8ZC9JT","price":40.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-lens-front-packaging.jpg?v=1791927445"},{"product_id":"cloudray-18mm-co2-laser-focus-lens-fl63-5mm-pvd-znse-30w-100w-high-transmittance-durable-optic","title":"Cloudray 18mm CO2 Laser Focus Lens FL63.5mm — PVD ZnSe, 30W–100W High-Transmittance Durable Optic","description":"\u003cb\u003eCloudray's 18mm PVD ZnSe CO2 laser focus lens (FL63.5mm) is a precision meniscus optic engineered for reliable engraving and cutting with 30W–100W CO2 laser systems.\u003c\/b\u003e\n\n\u003cp\u003eBuilt from PVD-coated zinc selenide, this Cloudray lens delivers high transmittance and durable surface protection for CO2 laser cutters and engravers. Its 18mm diameter and 63.5mm focal length make it suitable for mid-range power modules, while the double-sided solid coating and wiping resistance extend service life and maintain consistent beam quality. Each package contains one lens ready for installation in compatible holders.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this lens affect engraving and cutting performance?\u003c\/h3\u003e\n\u003cp\u003eThe meniscus design and ≥99.5% transmittance focus more of the laser’s power into a tighter spot, improving cut edge quality and engraving detail. Stable optical performance reduces the need for frequent realignment and helps produce repeatable results across jobs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeniscus shape concentrates beam energy and reduces spherical aberration\u003c\/li\u003e\n  \u003cli\u003eHigh transmittance maximizes usable laser output\u003c\/li\u003e\n  \u003cli\u003e63.5mm focal length balances depth of focus and spot size for varied materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat specifications should I check for compatibility?\u003c\/h3\u003e\n\u003cp\u003eConfirm your machine accepts an 18mm diameter lens and that the focal length (63.5mm) matches the intended working distance. The lens is rated for CO2 laser systems in the 30W to 100W range and is 2.4mm thick.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiameter: 18mm (0.71\") — fits standard 18mm holders\u003c\/li\u003e\n  \u003cli\u003eFocal length: 63.5mm (2.5\") — determines beam focus plane\u003c\/li\u003e\n  \u003cli\u003eThickness: 2.4mm (0.09\") — ensures structural integrity in mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the coating and how should I care for it?\u003c\/h3\u003e\n\u003cp\u003eCloudray applies a double-sided solid PVD coating that resists wiping and everyday contaminants, extending optical lifetime under normal use. Clean the lens gently with recommended solvents and lint-free cloths to preserve the coating and optical clarity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuperb PVD coating for wiping resistance and longer life\u003c\/li\u003e\n  \u003cli\u003eWipe with lens-safe alcohol and lint-free tissue only\u003c\/li\u003e\n  \u003cli\u003eAvoid touching optical surfaces with bare fingers to prevent oils\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this lens for? This Cloudray 18mm ZnSe focus lens suits hobbyists, small shops, and industrial users running CO2 lasers between 30W and 100W who need a reliable, high-transmittance optic for precision cutting and detailed engraving. It’s ideal when you want improved beam delivery, a durable coated surface, and a compact 18mm form factor for common laser heads.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this lens compatible with my 40W CO2 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Cloudray 18mm lens supports CO2 laser systems from 30W to 100W, so it works with a 40W unit if the holder accepts 18mm diameter optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I clean the PVD-coated ZnSe lens safely?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use lens-safe isopropyl alcohol and a lint-free tissue; gently wipe without pressure and avoid touching the optical surface directly.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55294317887825,"sku":"B07B8YBMMW","price":40.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-view-lens-packaging.jpg?v=1791928313"},{"product_id":"cloudray-20mm-co2-laser-lens-63-5mm-fl-20mm-pvd-znse-meniscus-for-30-100w-engraving-cutting","title":"Cloudray 20mm CO2 Laser Lens, 63.5mm FL — 20mm PVD ZnSe Meniscus for 30–100W Engraving \u0026 Cutting","description":"\u003cb\u003eCloudray's 20mm PVD ZnSe CO2 laser lens with a 63.5mm focal length is a high-transmittance meniscus optic designed for precision engraving and cutting on 30–100W CO2 systems.\u003c\/b\u003e\n\n\u003cp\u003eThis coated zinc selenide lens delivers excellent optical throughput and durable surface protection for hobbyist and light-industrial CO2 laser cutters and engravers. Built with a meniscus profile and a double-sided PVD hard coat, the lens balances focused beam quality with improved scratch resistance and long service life. It's a direct replacement or upgrade for systems that accept a 20mm diameter, 63.5mm focal length optic.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this lens affect engraving and cutting performance?\u003c\/h3\u003e\n\u003cp\u003eThe FL63.5mm focal length concentrates the CO2 beam to a small spot, improving detail in engraving and maintaining cutting power for thin-to-medium materials. Because the ZnSe substrate has very high infrared transmission, more of the laser energy reaches the workpiece, which translates to cleaner cuts and crisper marks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFocal length: 63.5mm (2.5\") for a tight focal spot\u003c\/li\u003e\n  \u003cli\u003eDiameter: 20mm (0.79\") to fit common CO2 lens holders\u003c\/li\u003e\n  \u003cli\u003eTransmittance ≥99.5% to maximize energy delivery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the PVD coating and meniscus shape useful?\u003c\/h3\u003e\n\u003cp\u003eThe physical vapor deposition (PVD) coating forms a solid, durable layer on both surfaces, reducing reflections and improving resistance to wiping and handling. The meniscus shape helps control spherical aberration and focuses the beam without excessive divergence, which is beneficial when switching between engraving details and through-cuts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-sided solid PVD coating for durability\u003c\/li\u003e\n  \u003cli\u003eWiping-resistant surface for easier maintenance\u003c\/li\u003e\n  \u003cli\u003eMeniscus geometry for balanced focus and beam quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich lasers and applications is this lens compatible with?\u003c\/h3\u003e\n\u003cp\u003eDesigned for CO2 laser systems in the 30W to 100W power range, the lens is suitable for acrylic, wood, leather, textiles, and many marking applications commonly handled by small to medium CO2 units. It pairs with machines that accept a 20mm diameter optic and a 63.5mm focal length.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible power range: 30W–100W CO2 lasers\u003c\/li\u003e\n  \u003cli\u003eCommon uses: engraving, cutting, marking on soft to medium-density materials\u003c\/li\u003e\n  \u003cli\u003ePackage includes one 20mm PVD ZnSe lens\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I care for and install this lens to maximize life?\u003c\/h3\u003e\n\u003cp\u003eHandle the lens by its edges, keep it in a clean environment during installation, and use lens-safe cleaning methods when necessary. The PVD coat improves wiping resistance, but avoid abrasive materials and excessive force when cleaning to preserve the coating and optical performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstall into a clean, properly aligned lens holder\u003c\/li\u003e\n  \u003cli\u003eClean gently with lens tissue and appropriate solvent if required\u003c\/li\u003e\n  \u003cli\u003eStore in a dust-free case when not in use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis Cloudray 20mm CO2 laser lens with a PVD ZnSe surface is ideal for makers, small shops, and technicians looking for a reliable replacement optic that improves throughput and resists handling wear. It offers high transmittance and a robust coating for everyday laser cutting and engraving tasks in 30–100W CO2 systems, and is supplied as a single lens ready for installation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this lens compatible with my 40W CO2 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—it's compatible with 30–100W CO2 lasers and fits systems accepting a 20mm diameter, 63.5mm focal length optic.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I clean the PVD-coated ZnSe lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Handle by edges, use lens tissue and approved solvent sparingly, and avoid abrasive materials to protect the PVD coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55294318051665,"sku":"B07B8J7QS4","price":40.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-view-20mm-lens.jpg?v=1791928313"},{"product_id":"cloudray-co2-laser-lens-20mm-dia-50-8mm-fl-znse-pvd-30w-100w-durable-high-transmission-optic","title":"Cloudray CO2 Laser Lens 20mm Dia, 50.8mm FL ZnSe PVD — 30W–100W Durable, High-Transmission Optic","description":"\u003cp\u003e\u003cstrong\u003eCloudray's 20mm PVD ZnSe CO2 laser lens with a 50.8mm focal length is a precision meniscus optic designed for 30W–100W CO2 engraving and cutting machines, offering ≥99.5% transmittance and durable double-sided PVD coating.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis 20mm diameter lens from Cloudray is engineered to focus mid-range CO2 laser power into a tight, predictable spot for engraving and cutting tasks. Made from PVD-coated zinc selenide (ZnSe), the optic combines high laser transmission with a wiping-resistant surface treatment to extend service life in demanding shop environments. The lens ships singly and fits laser heads that accept a 20mm\/0.79\" optic with a 50.8mm\/2\" focal length.\u003c\/p\u003e\n\n\u003ch3\u003eWhat performance can I expect from a 20mm, 50.8mm focal length lens?\u003c\/h3\u003e\n\u003cp\u003eThe 50.8mm focal length balances spot size and depth of field, making it versatile for medium-detail engraving and efficient cutting. It produces a tight focal spot while maintaining usable working distance for common CO2 machines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFocal length: 50.8mm (2\") for moderate spot size and cutting depth\u003c\/li\u003e\n  \u003cli\u003eDiameter: 20mm (0.79\") to fit compact laser heads\u003c\/li\u003e\n  \u003cli\u003eSuitable for detail work and light-to-medium cutting tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the Cloudray PVD ZnSe coating during regular use?\u003c\/h3\u003e\n\u003cp\u003eThe lens uses a double-sided physical vapor deposition (PVD) coating applied to ZnSe glass, improving resistance to wiping and surface wear compared with uncoated optics. Proper handling and routine cleaning extend the lens lifetime significantly under typical CO2 laser conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-sided PVD coating for enhanced durability\u003c\/li\u003e\n  \u003cli\u003eWiping-resistant finish to reduce cleaning wear\u003c\/li\u003e\n  \u003cli\u003eDesigned for repeated use in 30W–100W systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich laser systems are compatible with this Cloudray lens?\u003c\/h3\u003e\n\u003cp\u003eThis lens is intended for CO2 laser modules that accept a 20mm diameter optic and operate in the 30W–100W power range. Confirm your laser head’s mount and working distance requirements before installation to ensure proper fit and focus.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible power range: 30W–100W CO2 lasers\u003c\/li\u003e\n  \u003cli\u003eMount requirement: 20mm diameter optical seat\u003c\/li\u003e\n  \u003cli\u003eCheck mechanical clearance for 50.8mm focal length\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I clean and maintain the lens to preserve performance?\u003c\/h3\u003e\n\u003cp\u003eHandle the lens by its edge and use lint-free wipes with appropriate optical cleaning fluid for ZnSe when needed. Avoid abrasive materials and high-pressure solvents; follow your laser manufacturer’s maintenance guidelines to keep the coating intact and optics aligned.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse lint-free optical wipes and approved ZnSe cleaning solution\u003c\/li\u003e\n  \u003cli\u003eAvoid touching the clear aperture; hold by the rim\u003c\/li\u003e\n  \u003cli\u003eInspect for debris and alignment regularly to prevent damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This Cloudray 20mm PVD ZnSe lens is aimed at hobbyists, small fabrication shops, and OEMs running CO2 lasers in the 30W–100W range that need a reliable, long-lasting meniscus optic for engraving and cutting. If you require a compact 20mm optic with a 50.8mm focal length for balanced spot size and working distance—backed by a robust double-sided coating—this lens is a practical choice. Ensure compatibility with your laser head and follow recommended cleaning procedures to maximize life and optical performance.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this lens handle 100W CO2 lasers?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the Cloudray 20mm PVD ZnSe lens is rated for use across the 30W–100W CO2 laser range when properly mounted and cooled.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the best way to clean the lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Hold by the rim and use lint-free optical wipes with a ZnSe-approved cleaning fluid; avoid abrasive materials or touching the aperture.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55294481006929,"sku":"B07B8XX1JL","price":40.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-20mm-lens-front-view.jpg?v=1791931135"},{"product_id":"cloudray-co2-laser-focal-lens-12mm-dia-fl38-1mm-cvd-znse-meniscus-99-5-transmittance-for-40w-200w-machines","title":"Cloudray CO2 laser focal lens 12mm Dia, FL38.1mm — CVD ZnSe meniscus, ≥99.5% transmittance for 40W–200W machines","description":"\u003cp\u003e\u003cstrong\u003eCloudray 12mm CO2 laser lens (FL 38.1mm) is a precision CVD ZnSe focal lens made for 40W–200W CO2 laser engraving and cutting machines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis high-transmittance meniscus lens is engineered to concentrate CO2 laser energy into a tight, repeatable focal spot so you get cleaner cuts, finer engraving detail, and longer component service life. Finished with a robust double-sided solid coating and manufactured from CVD ZnSe, the lens offers ≥99.5% transmittance and wiping resistance that stands up to routine maintenance. It is sized with a 12 mm diameter and a 38.1 mm focal length (thickness 2 mm), matching many mid-range laser heads and optics assemblies for hobbyist and industrial machines alike.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this lens affect cut quality and engraving detail?\u003c\/h3\u003e\n\u003cp\u003eThe Cloudray lens focuses the CO2 beam into a narrower, consistent spot, which improves edge definition and reduces charring on many materials. Because it maximizes usable energy at the focal plane, you can achieve faster cuts or finer engraving at the same power setting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeniscus design concentrates energy and reduces spherical aberration.\u003c\/li\u003e\n  \u003cli\u003eHigh transmittance (≥99.5%) preserves laser output through the optic.\u003c\/li\u003e\n  \u003cli\u003e38.1 mm focal length balances depth of field with spot size for versatile use.\u003c\/li\u003e\n  \u003cli\u003eDouble-sided coating resists scratches and cleaning wear, keeping performance steady.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this lens fit my CO2 laser machine and power range?\u003c\/h3\u003e\n\u003cp\u003eThis lens is compatible with most CO2 laser systems specified for 40W up to 200W where a 12 mm diameter, 38.1 mm focal length optic is required. Check your machine’s optics holder dimensions and recommended focal length before replacing lenses to ensure correct beam focusing and mechanical fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiameter: 12 mm (0.47\") to match common lens mounts.\u003c\/li\u003e\n  \u003cli\u003eFocal length: 38.1 mm (1.5\") for typical mid-range heads.\u003c\/li\u003e\n  \u003cli\u003eThickness: 2 mm (0.07\")—verify lens seat depth and retention clips.\u003c\/li\u003e\n  \u003cli\u003eIntended power handling: 40W–200W; not for unlisted higher-power systems without verification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the lens and what maintenance does it need?\u003c\/h3\u003e\n\u003cp\u003eCloudray lenses use high-quality CVD ZnSe and a double-sided solid coating that improves wiping resistance and helps prevent surface damage during cleaning. Routine inspection and gentle cleaning extend life; avoid abrasive cloths and aggressive solvents to preserve the coating.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCVD ZnSe construction for stable optical properties and thermal behavior.\u003c\/li\u003e\n  \u003cli\u003eDouble-sided coating reduces risk of scratching during maintenance.\u003c\/li\u003e\n  \u003cli\u003eWipe with lint-free tissue and recommended optical cleaner; avoid rough materials.\u003c\/li\u003e\n  \u003cli\u003eReplace when pits, scratches, or coating delamination are visible to maintain safety and beam quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this lens for? Installers, hobbyists, and production technicians using CO2 laser cutters and engravers in the 40W–200W range who need a reliable, high-transmittance replacement or upgrade lens will find this Cloudray optic useful. It’s suited for users seeking sharper engraving, cleaner cuts, and a durable optic that tolerates regular cleaning. Always confirm your machine’s required diameter, focal length, and power rating before purchasing to ensure compatibility and safe operation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What machines is this 12mm FL38.1mm lens compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits CO2 laser engraving and cutting machines that accept a 12 mm diameter lens with 38.1 mm focal length, typically in the 40W–200W power range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I clean the Cloudray CVD ZnSe lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use a lint-free optical tissue and approved cleaner; avoid abrasive cloths and harsh solvents to protect the coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55295350309201,"sku":"B07B8QCYLD","price":41.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-lens-front-view.jpg?v=1791936444"},{"product_id":"cloudray-co2-laser-focus-lens-15mm-diameter-fl50-8mm-cvd-znse-for-40w-200w-high-transmittance-coated","title":"Cloudray CO2 Laser Focus Lens 15mm Diameter FL50.8mm CVD ZnSe for 40W–200W – High Transmittance, Coated","description":"\u003cb\u003eCloudray 15mm CVD ZnSe CO2 laser lens, 50.8mm focal length, is a precision meniscus focusing optic built for 40W–200W engraving and cutting machines.\u003c\/b\u003e\n\n\u003cp\u003eThis precision lens is engineered from high-quality CVD zinc selenide and finished with a robust double-sided coating for reliable optical performance in CO2 laser systems. Sized for compact beam delivery, the 15mm diameter and 50.8mm focal length make it a common replacement or upgrade part for hobbyist and industrial laser cutters and engravers. With ≥99.5% transmittance and wiping-resistant surfaces, the lens balances efficiency and durability in everyday workshop use.\u003c\/p\u003e\n\n\u003ch3\u003eWhat physical specifications define this Cloudray CO2 focus lens?\u003c\/h3\u003e\n\u003cp\u003eThe lens is a meniscus-shaped CVD ZnSe optic with a 15mm diameter and a 50.8mm (2\") focal length. It measures approximately 2mm thick and is optimised for CO2 wavelengths, offering very high light transmission to maintain beam energy through the focusing element.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial: high-quality CVD zinc selenide (ZnSe)\u003c\/li\u003e\n  \u003cli\u003eDiameter: 15mm (0.59\")\u003c\/li\u003e\n  \u003cli\u003eFocal length: 50.8mm (2\")\u003c\/li\u003e\n  \u003cli\u003eThickness: ~2mm (0.07\")\u003c\/li\u003e\n  \u003cli\u003eShape: meniscus lens with ≥99.5% transmittance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this lens affect engraving and cutting performance?\u003c\/h3\u003e\n\u003cp\u003eBy concentrating the CO2 beam to a precise spot, the lens improves cut resolution and engraving detail while keeping energy loss to a minimum. Its high transmittance and optical figure help maintain consistent focal spot size across jobs, which translates to cleaner cuts and finer engraved lines when aligned correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCreates a tight focal spot for sharper engraving detail\u003c\/li\u003e\n  \u003cli\u003eMaximizes transmitted laser power for efficient cutting\u003c\/li\u003e\n  \u003cli\u003eStable optical performance across repetitive runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this Cloudray lens compatible with my laser machine?\u003c\/h3\u003e\n\u003cp\u003eThe lens is intended for CO2 systems rated from approximately 40W up to 200W, a common range for many desktop and mid-size industrial cutters. Compatibility also depends on the machine’s lens mount diameter and beam path; measure your existing lens seat and confirm a 15mm optic fits your holder and beam diameter before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated compatible power: 40W–200W\u003c\/li\u003e\n  \u003cli\u003eCheck lens mount for 15mm diameter acceptance\u003c\/li\u003e\n  \u003cli\u003eConfirm focal length suits your machine’s nozzle or head spacing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat care and handling will keep this lens performing longer?\u003c\/h3\u003e\n\u003cp\u003eThe lens features a double-sided solid coating that resists wiping and helps protect the optical surface during routine maintenance. Handle the optic by its edges, avoid direct contact with the coated surfaces, and clean only with approved lens wipes or alcohol on lint-free tissue to prevent scratches and contamination.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStore in a clean, dry case when not installed\u003c\/li\u003e\n  \u003cli\u003eUse lint-free wipes and isopropyl alcohol for cleaning\u003c\/li\u003e\n  \u003cli\u003eReplace if coating damage or deep scratches are present\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this lens for? Technicians, makers, and small manufacturing operators who run CO2 laser engraving and cutting machines and need a reliable, high-transmittance focusing optic will find this Cloudray 15mm, FL50.8mm CVD ZnSe lens useful. It suits users replacing worn optics, upgrading beam quality, or stocking spare parts for 40W–200W systems. The lens is ideal when you require a compact diameter optic with strong coating resilience for frequent use.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What machine power range works with this Cloudray lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This 15mm CVD ZnSe lens is suitable for CO2 laser systems approximately 40W to 200W.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I clean the Cloudray CO2 focus lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Handle by the edges and clean with lint-free wipes and isopropyl alcohol; avoid touching coated surfaces.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55295763087697,"sku":"B07B8HHPKG","price":41.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-view-focus-lens.jpg?v=1791939168"},{"product_id":"cloudray-co2-laser-gold-si-reflective-mirrors-25mm-3-pack-99-2-ir-reflectivity-3mm-thick","title":"Cloudray CO2 Laser Gold Si Reflective Mirrors 25mm (3-Pack) — 99.2% IR Reflectivity, 3mm Thick","description":"\u003cstrong\u003eCloudray 3 Pcs Laser Si Reflective Lens Gold Mirror 25mm are precision gold-plated CO2 laser mirrors designed to replace or upgrade the three-mirror optical path in engraving and cutting systems.\u003c\/strong\u003e\n\n\u003cp\u003eThese three plane-shaped silicon (Si) mirrors measure 25 mm in diameter and 3 mm thick, with a gold reflective coating optimised for the 10,600 nm CO2 laser band. Built for hobbyist machines like the K40 and for industrial CO2 systems up to several hundred watts, this set focuses on delivering stable beam steering, high reflectivity, and durable thermal behavior. Each mirror is finished with precision slicing, polishing and coating to reduce scatter and maximize lifespan under continuous use.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these mirrors affect beam performance in a CO2 laser system?\u003c\/h3\u003e\n\u003cp\u003eReplacing worn or lower-quality mirrors with these Cloudray gold Si mirrors reduces power loss along the optical path and preserves beam quality. The high IR reflectivity keeps more energy reaching the focusing lens and workpiece, which translates to more consistent cutting and engraving results.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal diameter: 25 mm (0.98 in) and thickness: 3 mm (0.12 in).\u003c\/li\u003e\n  \u003cli\u003eReflectivity over 99.2% at 10,600 nm to minimize transmission losses.\u003c\/li\u003e\n  \u003cli\u003ePlane surface geometry for stable alignment and predictable beam steering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these mirrors compatible with my machine and laser power?\u003c\/h3\u003e\n\u003cp\u003eYes—the mirrors are intended to work across a broad range of CO2 laser systems, from hobbyist K40 setups to larger engraving and cutting machines. Their coating and substrate handle typical operating temperatures for systems rated roughly 60W to 400W, but alignment and cooling practices still matter for high-power installations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with K40 upgrades, desktop engravers, and many 60W–400W industrial CO2 lasers.\u003c\/li\u003e\n  \u003cli\u003eGold coating offers good thermal resistance for continuous operation.\u003c\/li\u003e\n  \u003cli\u003eCheck mirror mount size and beam diameter for fit before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance or handling steps help these mirrors last longer?\u003c\/h3\u003e\n\u003cp\u003eProper handling and occasional cleaning extend mirror lifetime and keep reflectivity high. Always handle by the edges, avoid touching coated faces, and clean with appropriate lens tissue and solvent when needed; avoid abrasive materials or excessive pressure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHandle edges only; use lint-free gloves or tweezers to avoid fingerprints.\u003c\/li\u003e\n  \u003cli\u003eClean with optical-grade solvent and soft lens tissue if contaminants appear.\u003c\/li\u003e\n  \u003cli\u003eEnsure mirror mounts are secure and aligned to prevent vibration damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These Cloudray 25 mm gold-plated Si mirrors are aimed at DIYers upgrading K40-style machines, small-shop laser operators needing reliable replacements, and production users seeking consistent optical components for medium-power CO2 systems. They are suitable when you need a compact, high-reflectivity mirror set to restore or improve beam efficiency, provided your mounts accommodate 25 mm optics and your system follows standard cooling and alignment practices.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will these mirrors fit my K40 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they are sized for common K40 upgrades (25 mm diameter); confirm your mount clearance before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What reflectivity do the mirrors provide at CO2 wavelengths?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Cloudray mirrors offer over 99.2% reflectivity at the 10,600 nm CO2 wavelength to reduce power loss.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55296660603217,"sku":"B07B915RV7","price":58.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-packaging-25mm-gold-mirrors.jpg?v=1791944794"},{"product_id":"cloudray-co2-laser-molybdenum-mirror-30mm-3mm-99-2-reflectivity-durable-uncoated-replacement","title":"Cloudray CO2 Laser Molybdenum Mirror 30mm × 3mm — 99.2% Reflectivity, Durable Uncoated Replacement","description":"\u003cp\u003e\u003cstrong\u003eCloudray 30mm molybdenum CO2 laser mirror is a precision, uncoated Mo mirror (30mm × 3mm) engineered to reflect up to 99.2% of a CO2 laser beam for reliable engraving and cutting performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your CO2 laser system needs a compact, durable reflective element that fits common setups such as K40-style machines, this Cloudray mirror is designed to restore accurate beam routing and stable output. Made from high-grade molybdenum and finished by fine polishing, the mirror favours longevity and consistent reflectivity without requiring an additional coating. It’s intended for technicians, hobbyists, and small‑scale shops seeking a robust replacement or spare part for their laser path.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this mirror improve beam performance?\u003c\/h3\u003e\n\u003cp\u003eThe Cloudray molybdenum mirror redirects the CO2 beam with minimal energy loss, thanks to its high surface reflectivity and precise dimensions. Better reflectivity stabilises focus and repeatability across engraving and cutting jobs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReflectivity up to 99.2% reduces power loss along the optical path.\u003c\/li\u003e\n  \u003cli\u003ePrecisely machined 30mm diameter and 3mm thickness for accurate alignment.\u003c\/li\u003e\n  \u003cli\u003ePolished molybdenum surface provides consistent reflection without fragile coatings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my laser system and mountings?\u003c\/h3\u003e\n\u003cp\u003eThe mirror’s 30mm diameter and 3mm thickness match common CO2 mirror holders used in many hobby and entry‑level machines, including K40-style setups. Check your holder’s internal diameter and clip style to confirm compatibility before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard 30mm diameter fits many commercial mirror mounts.\u003c\/li\u003e\n  \u003cli\u003e3mm thickness ensures secure retention without wobble in typical clips.\u003c\/li\u003e\n  \u003cli\u003eUncoated molybdenum avoids delicate surface layers that can peel in older mounts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the molybdenum construction during regular use?\u003c\/h3\u003e\n\u003cp\u003eMolybdenum is chosen for its thermal stability and mechanical strength under high temperatures and repeated beam exposure. The polished Mo finish resists quick degradation and maintains reflectivity longer than many coated alternatives in harsh environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid molybdenum body tolerates elevated operating temperatures.\u003c\/li\u003e\n  \u003cli\u003ePolishing reduces microscopic scattering that leads to performance drift.\u003c\/li\u003e\n  \u003cli\u003eUncoated surface avoids coating delamination issues in dusty or humid shops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I handle, clean, and install the Cloudray Mo mirror?\u003c\/h3\u003e\n\u003cp\u003eHandle the mirror by its edges and avoid touching the reflective face to prevent oils or scratches. Clean with approved solvents and lint‑free wipes, and mount securely in a properly aligned holder to preserve beam path accuracy.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWear gloves and lift by the rim to protect the reflective surface.\u003c\/li\u003e\n  \u003cli\u003eUse isopropyl alcohol and a lint‑free swab for gentle cleaning.\u003c\/li\u003e\n  \u003cli\u003eVerify alignment after installation to ensure optimal focus and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Cloudray 30mm molybdenum CO2 mirror is best suited for technicians, makers, and small business owners who run CO2 laser engravers or cutters and need a compact, resilient mirror that delivers high reflectivity without a fragile coating. It’s a practical spare or replacement for K40-style machines, entry‑level desktop systems, and custom laser rigs where space, stability, and consistent beam routing matter.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this mirror coated or uncoated?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This Cloudray mirror is uncoated, using a polished molybdenum surface for reliable reflection without fragile coatings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will it fit a K40 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the 30mm diameter and 3mm thickness are compatible with common K40 mirror holders, but verify your mount dimensions first.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55296747438417,"sku":"B07BJH63Z5","price":52.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-view-30mm-mirror.jpg?v=1791948069"},{"product_id":"cloudray-molybdenum-mo-laser-mirror-25mm-3mm-thick-pack-of-3-high-reflectivity-uncoated-for-co2-engraving","title":"Cloudray Molybdenum (Mo) Laser Mirror 25mm — 3mm Thick Pack of 3, High-Reflectivity Uncoated for CO2 Engraving","description":"\u003cp\u003e\u003cstrong\u003eCloudray Mo Mirror 25mm (0.98\") with 3mm (0.12\") thickness is a durable molybdenum reflecting mirror designed for CO2 laser engraving and cutting systems, supplied as a pack of three.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for optical alignment and beam routing inside CO2 laser machines, these molybdenum (Mo) mirrors deliver robust, high-reflectivity performance in demanding workshop settings. Each mirror is precision-cut to 25 mm diameter and finished to provide a smooth, hard surface that handles the heat and particulate exposure typical of engraving and cutting operations. The mirrors are uncoated, relying on molybdenum's inherent reflectivity and mechanical strength for long service life in tough environments.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these mirrors affect laser beam performance?\u003c\/h3\u003e\n\u003cp\u003eThese molybdenum mirrors steer and reflect the CO2 laser beam with minimal energy loss. With a polished surface optimised for mid-infrared wavelengths, they maintain a high reflectance so more laser power reaches the workpiece instead of being absorbed or scattered.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePolished molybdenum surface engineered for CO2 wavelength reflectivity.\u003c\/li\u003e\n  \u003cli\u003eMeasured reflection up to approximately 99.2% under proper conditions.\u003c\/li\u003e\n  \u003cli\u003e3mm thickness minimizes warping and preserves optical flatness.\u003c\/li\u003e\n  \u003cli\u003e25mm diameter fits common mirror mounts and holders in hobby and industrial lasers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes molybdenum mirrors a good choice for harsh workshop conditions?\u003c\/h3\u003e\n\u003cp\u003eMolybdenum is chosen for its mechanical toughness, thermal stability, and resistance to particulate abrasion. Unlike delicate coated optics, these uncoated Mo mirrors tolerate higher temperatures and exposure to cutting debris without degrading quickly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUncoated construction reduces risks of coating delamination under heat.\u003c\/li\u003e\n  \u003cli\u003eHard surface resists scratching from airborne particles.\u003c\/li\u003e\n  \u003cli\u003eStable at elevated temperatures common in laser beam paths.\u003c\/li\u003e\n  \u003cli\u003eLess frequent replacement compared with some coated alternatives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and maintain Cloudray Mo mirrors in my CO2 laser machine?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: mount the 25 mm mirror in the machine’s mirror holder, align it to the beam path, and secure without excessive force. Maintenance focuses on gentle cleaning and periodic checks for surface damage to keep reflectivity high.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHandle by edges or with lint-free gloves to avoid fingerprints.\u003c\/li\u003e\n  \u003cli\u003eClean with compressed air, then isopropyl alcohol and a soft wipe if needed.\u003c\/li\u003e\n  \u003cli\u003eInspect regularly for pitting, scratches, or deformation.\u003c\/li\u003e\n  \u003cli\u003eReplace if surface damage noticeably reduces beam quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDo these mirrors fit my laser system and what comes in the pack?\u003c\/h3\u003e\n\u003cp\u003eEach mirror is 25 mm in diameter and 3 mm thick, matching many standard CO2 laser mirror mounts. The product is sold as a set of three identical molybdenum mirrors, ideal for multi-mirror beam paths or keeping spares on hand.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiameter: 25 mm (0.98 inches) for common mirror mounts.\u003c\/li\u003e\n  \u003cli\u003eThickness: 3 mm (0.12 inches) for rigidity and flatness.\u003c\/li\u003e\n  \u003cli\u003eMaterial: Molybdenum, uncoated, polished finish.\u003c\/li\u003e\n  \u003cli\u003ePack includes three mirrors for replacements or multi-mirror setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These Cloudray molybdenum mirrors suit hobbyists, small fabrication shops, and industrial users who operate CO2 laser engravers or cutters and need reliable, heat-tolerant reflecting optics. They are especially useful for setups where durability and resistance to workshop debris are priorities, or where having ready spares reduces downtime. If you need a compact, mechanically robust mirror with strong mid-infrared reflectivity for beam routing, this 3-piece pack is a practical choice.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these Cloudray mirrors coated?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, these are uncoated polished molybdenum mirrors designed for durability and high reflectivity in CO2 lasers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will a 25mm mirror fit my CO2 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If your system uses standard 25mm mirror mounts, these will fit; verify mount diameter and holder depth first.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55296766411089,"sku":"B079NX1Z6B","price":54.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-molybdenum-mirror-front-view.jpg?v=1791948755"},{"product_id":"cloudray-co2-laser-gold-plated-si-reflective-mirrors-19-05mm-3-pcs-99-2-reflectivity-heat-resistant","title":"Cloudray CO2 Laser Gold-Plated Si Reflective Mirrors 19.05mm (3 pcs) — 99.2% Reflectivity, Heat-Resistant","description":"\u003cstrong\u003eCloudray 3 Pcs Si reflective mirrors are gold‑plated, 19.05mm plane mirrors engineered to replace or upgrade CO2 laser system mirrors for improved reflectivity and heat resistance.\u003c\/strong\u003e\n\n\u003cp\u003eThese precision 19.05mm (0.75\") x 3mm coated silicon mirrors are built for CO2 laser machines such as K40 upgrades and a wide range of engravers and cutters up to 400W. Each mirror features a high‑quality gold coating optimised for the 10,600nm CO2 wavelength, delivering over 99.2% reflectivity to reduce energy loss between the tube and the workbed. Cloudray’s polishing, slicing, and coating processes emphasize long working life, stable alignment, and consistent output in both hobbyist and industrial environments.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these mirrors affect laser performance?\u003c\/h3\u003e\n\u003cp\u003eReplacing worn or lower‑grade mirrors with Cloudray gold‑plated Si mirrors reduces power loss and stabilises beam delivery. The high reflectivity at 10,600nm helps preserve laser energy across the optical path, which can improve cutting or engraving consistency while reducing the need to increase tube power.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOver 99.2% reflectivity at 10,600nm minimizes transmission loss\u003c\/li\u003e\n  \u003cli\u003ePlane geometry keeps beam alignment consistent for repeatable results\u003c\/li\u003e\n  \u003cli\u003eGold coating offers superior infrared reflection and heat resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these mirrors compatible with my CO2 laser model?\u003c\/h3\u003e\n\u003cp\u003eThese 19.05mm diameter mirrors are designed as direct replacements for common CO2 laser mirror mounts used in K40-style machines and many hobby and light industrial lasers. They are suitable across a wide power range (60W–400W) thanks to robust coatings and thermal properties, but always verify mount dimensions before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard 19.05mm (0.75\") diameter fits many mirror holders\u003c\/li\u003e\n  \u003cli\u003e3mm thickness balances rigidity with common mount tolerances\u003c\/li\u003e\n  \u003cli\u003eWorks with K40 upgrades and larger engravers up to 400W\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and easy to maintain are these mirrors?\u003c\/h3\u003e\n\u003cp\u003eCloudray mirrors are manufactured with precision slicing, polishing, and gold plating to extend service life and resist thermal stress. They should be handled by the edges and cleaned with appropriate solvents on a lint‑free cloth to preserve the coating and maintain peak reflectivity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrecision polish reduces scatter and surface imperfections\u003c\/li\u003e\n  \u003cli\u003eGold plating resists oxidation and high‑temperature exposure\u003c\/li\u003e\n  \u003cli\u003eSimple cleaning with isopropyl alcohol and lint‑free wipes recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included and how will these mirrors improve my setup?\u003c\/h3\u003e\n\u003cp\u003eThis set contains three identically sized gold‑plated Si mirrors so you can replace all beam path mirrors at once for consistent optical performance. Upgrading the set reduces alignment drift and maximizes throughput from tube to lens, supporting cleaner cuts and more uniform engraving results.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree 19.05mm x 3mm gold‑plated silicon plane mirrors included\u003c\/li\u003e\n  \u003cli\u003eUniform coating and dimensions for matched beam path behavior\u003c\/li\u003e\n  \u003cli\u003eIntended for DIY replacement, maintenance kits, and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Cloudray’s 3‑pack 19.05mm gold‑plated Si mirrors suit hobbyists, makers, and light industrial users who need reliable, high‑reflectivity replacements or an upgrade for CO2 laser systems from K40 units to mid‑power engravers. Choose this set if you want consistent beam delivery, improved energy retention at the 10,600nm CO2 wavelength, and a durable mirror that tolerates higher power levels when replacing all three path mirrors for matched performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can these 19.05mm mirrors handle 300W laser power?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the gold‑plated Si mirrors are rated for use across a wide range up to around 400W, offering heat resistance and stable reflectivity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I clean the Cloudray mirrors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Gently wipe with isopropyl alcohol on a lint‑free cloth, handling only the edges to avoid damaging the coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55297248297297,"sku":"B07B8Y2NHY","price":58.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-packaging-mirrors.jpg?v=1791951131"},{"product_id":"cloudray-400x400mm-honeycomb-laser-bed-black-anodized-2mm-aluminum-work-surface","title":"Cloudray 400x400mm Honeycomb Laser Bed — Black Anodized 2mm Aluminium Work Surface","description":"\u003cp\u003e\u003cstrong\u003eCloudray's 400x400mm honeycomb laser bed is a black anodized aluminium work platform that protects your desktop and improves CO₂ laser cutting consistency for materials up to 15.7\"×15.7\".\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact honeycomb insert is designed as a drop-in accessory for desktop CO₂ laser engravers and small CNC cutters. Its 2mm-thick aluminium alloy honeycomb surface supports thin and flexible pieces evenly, reduces back-side scorch, and promotes airflow and debris escape—helping you get cleaner cuts and less post-processing. The set ships as four interlocking plates that assemble quickly and optionally includes positioning fixture clamps for holding awkward or small workpieces.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the honeycomb bed protect my workbench and materials?\u003c\/h3\u003e\n\u003cp\u003eThe honeycomb pattern lifts work away from the cutting surface so the laser exhaust and slag fall through the grid instead of scorching the bench or reflecting back onto the underside of the material. The black anodized finish also provides corrosion resistance and easier cleanup.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e2mm aluminium honeycomb reduces backside burn marks\u003c\/li\u003e\n  \u003cli\u003ePromotes downward smoke and debris escape through cutouts\u003c\/li\u003e\n  \u003cli\u003eBlack anodized coating increases surface durability and resists corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this improve my cut quality and accuracy?\u003c\/h3\u003e\n\u003cp\u003eYes—by supporting the workpiece evenly, the honeycomb bed prevents thin or flexible materials from sagging and keeps the focal plane more consistent across the cutting area. The improved airflow under the material also reduces heat buildup that can distort cuts or cause charring.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUniform support minimizes deflection on thin stock\u003c\/li\u003e\n  \u003cli\u003eAirflow-through structure helps heat dissipation during long cuts\u003c\/li\u003e\n  \u003cli\u003eMaintains consistent focal distance for sharper edges and cleaner kerfs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and maintain the 400x400mm honeycomb bed?\u003c\/h3\u003e\n\u003cp\u003eInstallation is fast: the product is supplied as four 400×100mm plates that align along their edges to form the 400×400mm surface. Routine maintenance is minimal—brush away dust and debris after each job and wipe with a soft cloth to preserve reflectivity and finish.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFour aluminium plates assemble into a 15.7\"×15.7\" work area\u003c\/li\u003e\n  \u003cli\u003eKeep a soft brush or cloth on hand to clear slag and residue\u003c\/li\u003e\n  \u003cli\u003eUser manual included for assembly and cleaning guidance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDo the optional positioning clamps make a difference?\u003c\/h3\u003e\n\u003cp\u003eOptional positioning fixture clamps are available to secure small, thin, or irregular parts that won’t lay flat on their own. These clamps can raise the workpiece slightly for better access and repeatability while preventing movement during engraving or cutting cycles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClamps hold delicate or tiny pieces without damaging them\u003c\/li\u003e\n  \u003cli\u003eRaise irregular parts to reduce contact and improve exhaust flow\u003c\/li\u003e\n  \u003cli\u003eEasy to attach or remove depending on job needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Cloudray 400x400mm honeycomb laser bed is ideal for makers, hobbyists, small production shops, and educational labs using desktop CO₂ laser engravers or compact CNC cutters. If you work with thin wood, acrylic, leather, paper, or fabric and want to protect your workbench while improving cut consistency and cleanup, this accessory provides a durable, easy-to-install platform that simplifies daily laser work.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What size work area does the Cloudray honeycomb bed support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It provides a 400×400mm (15.7\"×15.7\") working area made from four 400×100mm plates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I clean the honeycomb bed myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—brush away debris after each use and wipe gently with a soft cloth to protect the anodized finish.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55297427112273,"sku":"B0GCGHLM5R","price":71.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-honeycomb-front-view.jpg?v=1791955774"},{"product_id":"cloudray-18mm-cvd-znse-co2-focal-lens-fl50-8mm-40w-200w-double-sided-coated-2mm-meniscus-optic","title":"Cloudray 18mm CVD ZnSe CO2 Focal Lens FL50.8mm — 40W–200W, Double-Sided Coated 2mm Meniscus Optic","description":"\u003cp\u003e\u003cstrong\u003eCloudray's 18mm CVD ZnSe CO2 focal lens (FL50.8mm) is a high-transmittance meniscus optic engineered for precision engraving and cutting with 40W–200W CO2 lasers.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis Cloudray lens is built from chemical vapor deposition (CVD) zinc selenide and finished with a durable double-sided coating to deliver consistent focus, excellent energy throughput, and long working life for CO2 laser cutters and engravers. Sized for machines that accept an 18mm diameter optic and a 50.8mm focal length, it balances tight beam concentration with practical mechanical fit, making it a common replacement or upgrade part for hobbyist to production systems.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this lens affect engraving and cutting quality?\u003c\/h3\u003e\n\u003cp\u003eThe meniscus shape and high-purity CVD ZnSe substrate shape the CO2 beam to a clean, small focal spot for finer detail and sharper edges. With ≥99.5% transmittance, more laser energy reaches the workpiece, improving cut-through and marking consistency while reducing the need for excessive power.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeniscus profile produces a smaller, well-defined focal spot for detailed engraving\u003c\/li\u003e\n  \u003cli\u003e≥99.5% transmittance maximizes usable laser energy\u003c\/li\u003e\n  \u003cli\u003e50.8mm focal length suits both moderate-depth cuts and fine surface work\u003c\/li\u003e\n  \u003cli\u003e2mm thickness balances structural durability with optical performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this lens fit my CO2 laser machine and power range?\u003c\/h3\u003e\n\u003cp\u003eThe lens is made to a standard 18mm diameter with a 50.8mm focal length and is compatible with many CO2 systems that accept these dimensions. It supports laser tubes from approximately 40W up to 200W, but always confirm your machine’s lens holder and safety specifications before installing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiameter: 18mm (0.59\") — commonly supported size\u003c\/li\u003e\n  \u003cli\u003eFocal length: 50.8mm (2\") — standard for focused cutting\/engraving\u003c\/li\u003e\n  \u003cli\u003eCompatible power range: 40W–200W (verify compatibility with manufacturer)\u003c\/li\u003e\n  \u003cli\u003ePackage: single lens, ready for installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat durability and maintenance can I expect?\u003c\/h3\u003e\n\u003cp\u003eCloudray applies a double-sided solid coating and a wiping-resistant finish to protect the ZnSe substrate from contamination and handling wear. With proper cleaning and storage, the lens maintains optical performance and extends service life compared with uncoated optics.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid double-sided coating improves scratch and wipe resistance\u003c\/li\u003e\n  \u003cli\u003eCVD ZnSe offers thermal stability for higher-power operation\u003c\/li\u003e\n  \u003cli\u003eThin 2mm profile reduces weight without compromising durability\u003c\/li\u003e\n  \u003cli\u003eRecommended: clean with proper lens tissue and solvent to avoid damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and care for this focal lens?\u003c\/h3\u003e\n\u003cp\u003eInstall the lens using the correct holder and alignment tools for your laser head, ensuring the coated surfaces face the incoming beam as specified by your machine manual. Routine care includes gentle cleaning with lens tissue and approved solvent, and inspection for scratches or contamination before use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstall with the coated side orientation per machine guidelines\u003c\/li\u003e\n  \u003cli\u003eUse lint-free lens tissue and isopropyl alcohol for cleaning\u003c\/li\u003e\n  \u003cli\u003eInspect and replace if coating damage or scratches appear\u003c\/li\u003e\n  \u003cli\u003eStore in a protective case when not installed to prevent contamination\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Cloudray 18mm CVD ZnSe FL50.8mm focal lens is aimed at makers, small shops, and light industrial users seeking a reliable, high-transmittance replacement or upgrade for CO2 engraving and cutting systems in the 40W–200W range. It suits anyone needing a compact, durable optic for detailed marking, small-to-medium cutting tasks, or routine production work where consistent focus and long working life are priorities.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What machine power is this lens compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This Cloudray lens fits CO2 systems in the 40W–200W range; verify your machine’s lens holder and specs before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I clean the lens without damaging the coating?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use lint-free lens tissue and isopropyl alcohol, wipe gently, and avoid abrasive materials to protect the double-sided coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55297476559185,"sku":"B07B8KRBLC","price":55.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-lens-front-view_7d01fb27-92d0-4046-ae01-0d4076a25b30.jpg?v=1791956136"},{"product_id":"cloudray-12mm-cvd-znse-co2-laser-focus-lens-fl50-8mm-40w-200w-99-5-transmittance","title":"Cloudray 12mm CVD ZnSe CO2 Laser Focus Lens FL50.8mm — 40W–200W, ≥99.5% Transmittance","description":"\u003cp\u003e\u003cstrong\u003eCloudray's 12mm CVD ZnSe CO2 laser focus lens (FL50.8mm) is a precision meniscus lens designed for CO2 engraving and cutting machines rated 40W–200W.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis single-element focus lens is built from high-quality CVD zinc selenide and finished with a durable double-sided coating to deliver strong transmittance and long service life in CO2 laser systems. It replaces worn optics or upgrades an existing beam path to restore cutting and engraving performance on compatible 10.6 µm CO2 lasers. The compact 12mm diameter and 50.8mm focal length suit many hobbyist and light-industrial laser cutters.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this lens affect engraving and cutting precision?\u003c\/h3\u003e\n\u003cp\u003eThe 50.8mm focal length concentrates the laser beam to a tight spot for finer detail and cleaner edges during engraving or cutting. Because the lens is a meniscus design with a transmittance of ≥99.5%, energy loss is minimal, preserving laser power at the work surface.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFocal length: 50.8mm for a balance of detail and kerf control\u003c\/li\u003e\n  \u003cli\u003eDiameter: 12mm fits common focus holders and nozzles\u003c\/li\u003e\n  \u003cli\u003eHigh transmittance (≥99.5%) conserves available laser output\u003c\/li\u003e\n  \u003cli\u003eMeniscus shape reduces spherical aberration for sharper focal spots\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this lens compatible with my CO2 laser machine?\u003c\/h3\u003e\n\u003cp\u003eThis Cloudray lens is intended for CO2 lasers with optical powers roughly between 40W and 200W and standard 10.6 µm wavelengths. Confirm mechanical fit (12mm diameter) and required focal length (FL50.8mm) before purchase, and ensure your beam housing accepts a single-element ZnSe lens.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial: CVD ZnSe optimised for 10.6 µm CO2 lasers\u003c\/li\u003e\n  \u003cli\u003ePower compatibility: recommended for 40W–200W systems\u003c\/li\u003e\n  \u003cli\u003ePhysical size: 12mm diameter, 2mm thickness\u003c\/li\u003e\n  \u003cli\u003eMounting: fits most standard focus holders designed for 12mm optics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat durability and coating benefits does the Cloudray lens provide?\u003c\/h3\u003e\n\u003cp\u003eThe lens features a double-sided solid coating applied through an industrial process to resist scratches and maintain optical clarity over time. This wiping-resistant surface simplifies routine cleaning and helps extend the working life of the optic under normal use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCoating: double-sided, solid coating for durability\u003c\/li\u003e\n  \u003cli\u003eWiping resistance: easier maintenance with reduced abrasion risk\u003c\/li\u003e\n  \u003cli\u003eLong working life: coating and CVD ZnSe construction improve longevity\u003c\/li\u003e\n  \u003cli\u003ePackage: single lens per order for straightforward replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and maintain the focus lens safely?\u003c\/h3\u003e\n\u003cp\u003eHandle the ZnSe lens with gloves or lint-free tweezers to avoid fingerprints and scratches. Install it in a clean, dust-free housing, align per your machine’s manual, and clean only with recommended lens cleaning solutions and lint-free wipes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse gloves or tweezers to prevent surface contamination\u003c\/li\u003e\n  \u003cli\u003eClean gently with lens-grade fluid and lint-free tissue\u003c\/li\u003e\n  \u003cli\u003eVerify alignment in small test cuts before full production runs\u003c\/li\u003e\n  \u003cli\u003eStore in its protective case when not installed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this lens for? The Cloudray 12mm CVD ZnSe FL50.8mm lens is aimed at hobbyists, makers, and light-industrial operators who need a reliable, high-transmittance CO2 focus optic for 40W–200W laser cutters and engravers. It’s a suitable replacement part for restoring beam quality or upgrading optics to achieve finer cuts and engravings. If you require a different diameter or focal length, check Cloudray’s range of CO2 optics to match your machine’s specifications.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What focal length and diameter does this Cloudray lens have?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This lens is 12mm in diameter with a 50.8mm focal length (FL50.8mm).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which laser power levels is the lens suitable for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It’s designed for CO2 laser systems roughly between 40W and 200W.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55297476526417,"sku":"B07B8H3TVJ","price":52.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-view-lens-packaging_c6260022-e56e-45d2-a5cc-66705d31717b.jpg?v=1791956136"},{"product_id":"cloudray-co2-laser-focusing-lens-20mm-dia-fl101-6mm-4-cvd-znse-meniscus-high-transmittance","title":"Cloudray CO2 Laser Focusing Lens 20mm Dia FL101.6mm (4\") CVD ZnSe Meniscus, High Transmittance","description":"\u003cp\u003e\u003cstrong\u003eCloudray CO2 laser lens, 20mm diameter with 101.6mm focal length, is a high-transmittance CVD ZnSe meniscus lens designed for precise focusing in 40W–200W CO2 engraving and cutting systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis precision lens is manufactured from CVD-grown zinc selenide and finished with a double-sided, durable coating to deliver consistent beam shaping and extended service life for CO2 laser heads. With a compact 20 mm diameter and a 101.6 mm focal length (4\"), the meniscus profile is optimised for tight focus and reliable performance across a wide range of laser power levels. The lens is supplied individually and is commonly used as a replacement or upgrade part for CO2 laser engraving and cutting machines.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Cloudray lens improve beam focus and cut quality?\u003c\/h3\u003e\n\u003cp\u003eThe meniscus shape and precise focal length concentrate the CO2 beam into a small, consistent spot, improving edge definition and reducing thermal spread on the workpiece. High transmittance minimizes energy loss through the lens, so more laser power reaches the material.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeniscus design for tighter focal spot and sharper cuts\u003c\/li\u003e\n  \u003cli\u003e≥99.5% transmittance to maximize usable power\u003c\/li\u003e\n  \u003cli\u003e101.6 mm focal length for common cutting and engraving setups\u003c\/li\u003e\n  \u003cli\u003eWorks across 40W–200W systems to maintain beam quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the exact dimensions and compatibility details?\u003c\/h3\u003e\n\u003cp\u003eThe lens measures 20 mm (0.79\") in diameter with a 101.6 mm (4\") focal length and a 2 mm (0.07\") centre thickness. It fits optical assemblies designed for 20 mm CO2 focusing lenses and is compatible with many standard CO2 laser heads in the specified power range.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiameter: 20 mm \/ 0.79\"\u003c\/li\u003e\n  \u003cli\u003eFocal length: 101.6 mm \/ 4\"\u003c\/li\u003e\n  \u003cli\u003eCentre thickness: 2 mm \/ 0.07\"\u003c\/li\u003e\n  \u003cli\u003ePower compatibility: 40W–200W CO2 laser systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the lens and what maintenance is required?\u003c\/h3\u003e\n\u003cp\u003eCloudray applies a double-sided solid coating that improves wiping resistance and helps protect the optic from routine handling and contamination. Regular inspection and careful cleaning with appropriate solvents and lint-free wipes will prolong performance and prevent coating damage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-sided hardened coating for wear resistance\u003c\/li\u003e\n  \u003cli\u003eWiping-resistant surface for easier cleaning\u003c\/li\u003e\n  \u003cli\u003eLong working life when handled per optics best practices\u003c\/li\u003e\n  \u003cli\u003eReplace if scratched, chipped, or visibly degraded to maintain beam quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to install and use in an existing laser head?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for users who are comfortable servicing laser optics: remove the old lens from the focusing assembly, verify lens seating and orientation, then secure the new lens following the machine manufacturer’s instructions. Always power down and follow safety procedures before any optical maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect drop-in replacement for 20 mm lens housings\u003c\/li\u003e\n  \u003cli\u003eObserve correct convex\/concave orientation per your laser head\u003c\/li\u003e\n  \u003cli\u003eUse torque-limited tools and lint-free gloves for handling\u003c\/li\u003e\n  \u003cli\u003eVerify alignment and perform test cuts at low power first\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Cloudray CO2 20 mm x 101.6 mm CVD ZnSe lens is designed for hobbyists, small-batch fabricators, and industrial users who operate 40W–200W CO2 laser engravers or cutters and need a reliable, high-transmission focusing optic. It suits technicians replacing a worn lens, integrators building or upgrading laser heads, and makers who require consistent focal performance for precise engraving and cutting tasks. For safe, long-lasting results, only install in systems designed for ZnSe optics and follow your machine manufacturer’s alignment and safety guidelines.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this lens compatible with my 60W CO2 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The lens supports 40W–200W systems, so it is compatible with a 60W CO2 laser when mounted in a 20 mm lens housing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I clean the Cloudray ZnSe lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Power down, wear gloves, use lens-safe solvent and lint-free wipes, and dab gently—avoid abrasive rubbing to protect the coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55297476591953,"sku":"B07B8M2NN1","price":55.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-view-lens.jpg?v=1791956136"},{"product_id":"cloudray-18mm-co2-laser-lens-znse-38-1mm-focal-length-for-40w-200w-engraving-high-transmittance-double-sided-coating","title":"Cloudray 18mm CO2 Laser Lens ZnSe 38.1mm Focal Length for 40W–200W Engraving — High Transmittance, Double-Sided Coating","description":"\u003cp\u003e\u003cstrong\u003eCloudray 18mm CO2 laser lens (CVD ZnSe, 38.1mm focal length) is a high-transmittance meniscus optic built for 40W–200W engraving and cutting machines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis precision ZnSe lens is engineered to deliver clean, focused CO2 laser beams with minimal loss and long service life. Made from high-quality CVD zinc selenide and finished with a durable double-sided coating, it fits machines that accept an 18mm diameter optic and a 38.1mm focal length. The lens is intended as a direct replacement or spare part for CO2 laser heads used in both hobbyist and light industrial engraving and cutting.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes this Cloudray lens suitable for CO2 engraving and cutting?\u003c\/h3\u003e\n\u003cp\u003eThe lens combines material choice and surface treatment to preserve beam quality and reduce absorption. A meniscus shape helps control focus and spot size while the high transmittance maximizes effective power on the material. The double-sided solid coating improves scratch resistance and extends usable life under regular operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial: high-quality CVD ZnSe, suited to 10.6 µm CO2 wavelength\u003c\/li\u003e\n  \u003cli\u003eTransmittance ≥99.5% minimizes power loss\u003c\/li\u003e\n  \u003cli\u003eDurable double-sided coating for wiping resistance\u003c\/li\u003e\n  \u003cli\u003eMeniscus profile optimizes focal spot and depth of focus\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich machine powers and lens dimensions are compatible?\u003c\/h3\u003e\n\u003cp\u003eThis Cloudray lens is intended for CO2 lasers in the 40W to 200W range and fits systems that accept an 18mm diameter optic with a 38.1mm focal length. Confirm your laser head accepts an 18mm lens and the mounting clearance accommodates the 2mm thickness. Using the correct focal length ensures predictable engraving depth and cut kerf.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible power range: 40W–200W\u003c\/li\u003e\n  \u003cli\u003eDiameter: 18mm (0.59\") for standard small-head holders\u003c\/li\u003e\n  \u003cli\u003eFocal length: 38.1mm (1.5\") for typical engraving\/cutting focus\u003c\/li\u003e\n  \u003cli\u003eThickness: 2mm (0.07\") overall optic depth\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I handle, clean, and install the lens to keep performance high?\u003c\/h3\u003e\n\u003cp\u003eHandle the lens by its edges with gloves to avoid fingerprints and surface contamination. Clean only with approved optical solvents and lint-free wipes, and avoid abrasive motion to protect the coating. Install using the correct holder and alignment procedures to maintain beam centering and minimize back reflections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHold by edges; avoid touching optical surface\u003c\/li\u003e\n  \u003cli\u003eClean with optical-grade solvent and lint-free wipes\u003c\/li\u003e\n  \u003cli\u003eUse correct collet or holder and verify alignment\u003c\/li\u003e\n  \u003cli\u003eInspect coating before installation to ensure no damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance can I expect and how long will it last?\u003c\/h3\u003e\n\u003cp\u003eThe lens offers high transmission and stable focusing, which supports consistent engraving detail and cutting performance when used within the specified power range. The solid double-sided coating improves resistance to routine cleaning and environmental wear, extending operational life under normal conditions. Actual lifespan depends on operating hours, contaminants, and maintenance practices.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh transmittance preserves laser power at the workpiece\u003c\/li\u003e\n  \u003cli\u003eMeniscus design helps maintain tight focus for fine detail\u003c\/li\u003e\n  \u003cli\u003eCoating reduces abrasion from cleaning and airborne particulates\u003c\/li\u003e\n  \u003cli\u003eLifetime varies with usage, cleanliness, and operating power\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This Cloudray 18mm ZnSe CO2 lens is aimed at hobbyists, small workshops, and light-industrial users who need a drop-in optic for 40W–200W CO2 engraving and cutting systems. It’s a good choice if you require a compact 18mm diameter lens with a 38.1mm focal length for predictable focusing, improved transmission, and easier maintenance. Confirm compatibility with your laser head and follow recommended handling to get reliable, repeatable results.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this Cloudray lens compatible with my 60W CO2 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the lens supports CO2 systems from 40W to 200W. Confirm your machine accepts an 18mm diameter, 38.1mm focal length optic before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I clean the ZnSe lens without damaging it?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Wear gloves, use optical-grade solvent and a lint-free wipe, and clean gently along one direction to protect the coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55297531412817,"sku":"B07B8K9SZ8","price":55.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-18mm-lens-front-view.jpg?v=1791956809"},{"product_id":"cloudray-co2-laser-focusing-lens-20mm-diameter-76-2mm-fl-meniscus-znse-high-transmittance","title":"Cloudray CO2 Laser Focusing Lens 20mm Diameter – 76.2mm FL Meniscus ZnSe, High Transmittance","description":"\u003cp\u003e\u003cstrong\u003eThe Cloudray D20mm FL76.2mm CO2 laser lens is a 20 mm diameter meniscus ZnSe focusing optic with a 76.2 mm focal length, designed for CO2 engraving and cutting systems from 40W to 200W.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis precision lens is manufactured from high-quality CVD ZnSe and finished with a durable double-sided solid coating to deliver excellent infrared transmittance, reliable focus, and long service life. It’s a direct replacement or upgrade part for CO2 laser heads where a 20 mm clear aperture and 76.2 mm focal length are required, and it ships as a single lens ready for installation into standard mounts.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this lens affect cutting and engraving performance?\u003c\/h3\u003e\n\u003cp\u003eThe 76.2 mm focal length concentrates the 10.6 µm CO2 beam to a precise spot suitable for both fine engraving and moderate cutting. The meniscus profile reduces aberrations and helps maintain a tighter focal spot across the working distance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFocal length: 76.2 mm (3\") for balanced depth of field and spot size.\u003c\/li\u003e\n  \u003cli\u003e20 mm diameter aperture for focused beam delivery.\u003c\/li\u003e\n  \u003cli\u003eMeniscus shape minimizes spherical aberration for cleaner edges.\u003c\/li\u003e\n  \u003cli\u003eHigh transmittance (≥99.5%) preserves laser power throughput.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this lens work with my CO2 laser system?\u003c\/h3\u003e\n\u003cp\u003eThis lens is compatible with CO2 laser systems rated between 40W and 200W, provided the laser head accepts a 20 mm diameter optic and the mount accommodates a 76.2 mm focal working distance. Verify mechanical mount dimensions and clearance before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial: CVD ZnSe—suitable for 10.6 µm CO2 wavelengths.\u003c\/li\u003e\n  \u003cli\u003eThickness: 2 mm—fits common lens holders designed for thin optics.\u003c\/li\u003e\n  \u003cli\u003eCoating: double-sided solid coating for wipe resistance during maintenance.\u003c\/li\u003e\n  \u003cli\u003ePackage: single lens included, ready to install.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I clean and maintain the Cloudray lens?\u003c\/h3\u003e\n\u003cp\u003eUse gentle, non-abrasive cleaning methods to avoid scratching the coating and ZnSe substrate. The lens features a robust coating that tolerates careful wiping, but aggressive chemicals and rough materials will degrade performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse lens tissue or a microfibre cloth with optical-grade cleaner.\u003c\/li\u003e\n  \u003cli\u003eBlow off loose dust with filtered compressed air before wiping.\u003c\/li\u003e\n  \u003cli\u003eAvoid alcohol-heavy or abrasive solutions that damage coatings.\u003c\/li\u003e\n  \u003cli\u003eInspect regularly for carbonization or debris after cutting tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the optical and physical specifications I should note?\u003c\/h3\u003e\n\u003cp\u003eKey specs help you match the lens to your application and mounting hardware. These values also determine compatible focal setups and expected throughput for efficient laser processing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiameter: 20 mm (0.71\").\u003c\/li\u003e\n  \u003cli\u003eFocal length: 76.2 mm (3\").\u003c\/li\u003e\n  \u003cli\u003eThickness: 2 mm (0.07\").\u003c\/li\u003e\n  \u003cli\u003eTransmittance: ≥99.5% and double-sided solid coating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Cloudray D20mm FL76.2mm lens is aimed at makers, fabrication shops, and equipment technicians who need a reliable CO2 focusing optic for mid-powered laser cutters and engravers. It’s appropriate for users replacing worn optics, optimizing beam focus for fine engraving, or configuring systems that require a 20 mm ZnSe lens with a 76.2 mm focal length. Confirm system compatibility and handle with care to preserve coating performance and optical clarity.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this lens compatible with 10.6 µm CO2 lasers?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Made from CVD ZnSe and coated for 10.6 µm, it suits CO2 lasers between 40W and 200W.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I clean the Cloudray lens safely?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Blow off dust, then gently wipe with lens tissue and an optical-grade cleaner; avoid abrasive materials.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55297553858897,"sku":"B07B8KYDHY","price":55.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-view-lens-packaging_4fb90462-7d33-4c3f-b9e7-2a0848670797.jpg?v=1791957605"},{"product_id":"cloudray-18mm-cvd-znse-co2-laser-focus-lens-fl63-5mm-40w-200w-double-sided-coated-high-transmittance","title":"Cloudray 18mm CVD ZnSe CO2 Laser Focus Lens FL63.5mm — 40W–200W, Double-Sided Coated, High Transmittance","description":"\u003cp\u003e\u003cstrong\u003eCloudray’s 18mm CVD ZnSe CO2 laser focus lens (FL63.5mm) is a precision meniscus optic designed for reliable engraving and cutting on 40W–200W CO2 laser machines.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis high-transmittance, double-sided coated lens gives laser hobbyists and professionals a stable, focused beam for consistent cutting and fine-detail engraving. Made from CVD-grown zinc selenide, the optic balances high laser transmission with durable coatings that resist cleaning wear and extend service life. The compact 18 mm diameter and 63.5 mm focal length make it compatible with many common CO2 laser modules and replacement assemblies.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this lens affect my cutting and engraving performance?\u003c\/h3\u003e\n\u003cp\u003eUsing a lens with high transmittance and precise focal length sharpens the beam waist, improving edge quality and engraving resolution. The meniscus shape reduces spherical aberration for more consistent spot size across the working area.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFocal length: 63.5 mm yields a tight focus for finer detail.\u003c\/li\u003e\n  \u003cli\u003eDiameter: 18 mm fits standard CO2 laser lens holders.\u003c\/li\u003e\n  \u003cli\u003eTransmittance ≥99.5% minimizes energy loss through the optic.\u003c\/li\u003e\n  \u003cli\u003eMeniscus design improves beam quality and reduces distortion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this lens durable and easy to maintain?\u003c\/h3\u003e\n\u003cp\u003eThe lens features a double-sided solid coating applied through an advanced process to resist wiping and environmental wear. Proper cleaning with recommended fluids and lint-free wipes will preserve the coating and extend the lens life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCoating: Double-sided solid coating for enhanced durability.\u003c\/li\u003e\n  \u003cli\u003eWiping resistance reduces risk of coating damage during maintenance.\u003c\/li\u003e\n  \u003cli\u003eThickness: 2 mm offering structural stability without unnecessary bulk.\u003c\/li\u003e\n  \u003cli\u003ePackaged securely to prevent handling damage during shipping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich machines and power ranges are compatible with this lens?\u003c\/h3\u003e\n\u003cp\u003eThis Cloudray lens is specified for CO2 laser systems operating in the 40W to 200W power band and fits setups that accept an 18 mm diameter optic. It’s commonly used as a replacement or upgrade in many desktop and industrial CO2 cutting\/engraving machines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible power range: 40W–200W CO2 lasers.\u003c\/li\u003e\n  \u003cli\u003eDiameter: 18 mm (0.59\") fits standard lens mounts.\u003c\/li\u003e\n  \u003cli\u003eFocal length: 63.5 mm (2.5\") for mid-range working distances.\u003c\/li\u003e\n  \u003cli\u003eUse case: engraving, cutting, and precision marking with CO2 beams.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat physical specs and package details should I expect?\u003c\/h3\u003e\n\u003cp\u003eThe lens is a meniscus-shaped CVD ZnSe optic with a 2 mm thickness and a high-transmission coating. It ships as a single lens, carefully packaged to protect the coated surfaces and edges.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial: High-quality CVD ZnSe (zinc selenide).\u003c\/li\u003e\n  \u003cli\u003eDimensions: 18 mm diameter, 63.5 mm focal length, 2 mm thickness.\u003c\/li\u003e\n  \u003cli\u003ePerformance: Transmittance ≥99.5% for efficient power delivery.\u003c\/li\u003e\n  \u003cli\u003ePackage contents: 1 x Cloudray CO2 lens in protective packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Cloudray 18 mm FL63.5mm lens is aimed at makers, small-business fabricators, and industrial users who need a reliable, high-transmission replacement optic for CO2 laser engraving or cutting systems in the 40W–200W range. Choose this lens when you want improved focus quality, durable coatings for routine maintenance, and a compact optic that fits common lens holders.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this lens be used on a 50W CO2 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The lens is specified for 40W–200W CO2 lasers and is suitable for a 50W system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I clean the Cloudray CVD ZnSe lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use a lint-free wipe with recommended optic cleaner, wipe gently, and avoid abrasive materials to preserve the coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55297689223505,"sku":"B07B8HHPKP","price":49.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-packaging-18mm-lens.jpg?v=1791959550"},{"product_id":"cloudray-co2-laser-lens-d19-05mm-fl58-1mm-cvd-znse-for-40w-200w-engraving-high-transmittance-durable-coating","title":"Cloudray CO2 Laser Lens D19.05mm FL58.1mm CVD ZnSe for 40W–200W Engraving — High Transmittance, Durable Coating","description":"\u003cp\u003e\u003cstrong\u003eThe Cloudray CO2 Laser Lens D19.05mm FL58.1mm is a precision CVD ZnSe meniscus lens engineered to deliver ≥99.5% transmittance and long service life for 40W–200W CO2 engraving and cutting systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement or upgrade lens is designed for CO2 laser engraving and cutting machines that require a compact 19.05 mm diameter optic with a 58.1 mm focal length. Made from high-quality chemical vapor deposition (CVD) zinc selenide and finished with a durable double-sided solid coating, the lens minimizes energy loss, resists surface wear from routine cleaning, and pairs with common CO2 laser heads used in industrial and hobbyist setups.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this lens improve engraving and cutting consistency?\u003c\/h3\u003e\n\n\u003cp\u003eBy combining CVD ZnSe material with a meniscus shape and a high-transmittance coating, the lens focuses laser energy more efficiently onto the workpiece for predictable cutting and engraving depths. The optical finish reduces scatter and hotspots that can cause uneven marks.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDiameter: 19.05 mm (0.75\") for compact beam delivery systems\u003c\/li\u003e\n  \u003cli\u003eFocal length: 58.1 mm, optimised for mid-range beam convergence\u003c\/li\u003e\n  \u003cli\u003eTransmittance ≥99.5% to maximize usable laser power\u003c\/li\u003e\n  \u003cli\u003eMeniscus geometry reduces spherical aberration for sharper edges\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat machine powers and compatibility should I expect?\u003c\/h3\u003e\n\n\u003cp\u003eThis lens is suitable for CO2 laser modules in the 40W–200W range, making it compatible with many commercial and hobby engravers and cutters. It is typically used in CO18-style laser heads and other assemblies that accept 19.05 mm diameter optics with similar mounting features.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible power range: 40W–200W\u003c\/li\u003e\n  \u003cli\u003eCommonly fits CO18 laser head designs and equivalent mounts\u003c\/li\u003e\n  \u003cli\u003eSingle-lens package: 1 x lens included for straightforward replacement\u003c\/li\u003e\n  \u003cli\u003eThickness: 2 mm (0.07\") for reliable mechanical fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the lens and how should I maintain it?\u003c\/h3\u003e\n\n\u003cp\u003eThe Cloudray lens is finished with a double-sided solid coating that improves wipe resistance and prolongs service life under normal maintenance routines. Careful cleaning with appropriate optical wipes and solvent minimizes surface abrasion and helps preserve high transmittance over time.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDouble-sided coating: enhanced durability and wiping resistance\u003c\/li\u003e\n  \u003cli\u003eRecommended cleaning: lint-free optical wipes and approved solvents\u003c\/li\u003e\n  \u003cli\u003eLong working life when maintained per manufacturer guidance\u003c\/li\u003e\n  \u003cli\u003eAvoid abrasive materials and rough handling to prevent scratching\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance details should technicians verify before installation?\u003c\/h3\u003e\n\n\u003cp\u003eBefore fitting the lens, confirm the focal length and diameter match the laser head specifications and that the mount clearance accommodates the 2 mm thickness. Inspect the optic for surface cleanliness and check alignment after installation to ensure expected focal spot size and cut quality.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVerify: 19.05 mm diameter and 58.1 mm focal length match your head\u003c\/li\u003e\n  \u003cli\u003eConfirm mount clearance for 2 mm lens thickness\u003c\/li\u003e\n  \u003cli\u003eInspect for dust, fingerprints, or defects before powering the laser\u003c\/li\u003e\n  \u003cli\u003eAdjust focus and alignment to restore optimal beam profile\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Cloudray D19.05mm FL58.1mm CVD ZnSe lens is for technicians, makers, and small-product manufacturers who run CO2 laser cutters and engravers between 40W and 200W and need a high-transmittance, wear-resistant optic for reliable mid-range focusing. It’s an appropriate upgrade or spare for anyone using CO18-style laser heads or equivalent systems that require a compact, precise meniscus lens to maintain cutting edge quality and consistent engraving results.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this lens compatible with my 60W CO2 engraver?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this Cloudray lens supports CO2 systems rated 40W–200W, including most 60W engravers that accept a 19.05 mm diameter optic.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I clean the Cloudray ZnSe lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use lint-free optical wipes and approved solvent; avoid abrasive cloths and excessive pressure to protect the coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55297889534289,"sku":"B07B8FTFTX","price":55.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-view-lens-packaging_c9d5d992-5c80-4ea9-b615-598bd743b7f4.jpg?v=1791960608"},{"product_id":"cloudray-co2-laser-focus-lens-20mm-fl38-1mm-cvd-znse-40-200w-meniscus-high-transmittance-double-coated-optic","title":"Cloudray CO2 laser focus lens 20mm FL38.1mm CVD ZnSe — 40–200W, meniscus high-transmittance double-coated optic","description":"\u003cp\u003e\u003cstrong\u003eCloudray's 20mm CVD ZnSe CO2 laser focus lens (FL 38.1mm) is a high-transmittance, meniscus-shaped optic engineered to deliver precise focal performance for 40W–200W CO2 engraving and cutting machines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis precision lens is made from CVD-grown zinc selenide and finished with a durable double-sided solid coating for long service life and easy cleaning. With a 20mm diameter and a 38.1mm focal length, it balances tight focus and working distance for common CO2 laser systems. The lens's ≥99.5% transmittance and wiping-resistant coating reduce energy loss and maintenance downtime, making it a reliable replacement or upgrade part for hobbyist and production setups.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this lens affect engraving and cutting accuracy?\u003c\/h3\u003e\n\u003cp\u003eThe meniscus design and exact 38.1mm focal length concentrate the beam to produce a smaller, consistent spot size, which improves edge definition and detail on engraving jobs. That tighter focus also allows cleaner through-cuts at appropriate power levels, especially on thin materials.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e20mm diameter for compact beam shaping\u003c\/li\u003e\n  \u003cli\u003e38.1mm focal length for precise spot control\u003c\/li\u003e\n  \u003cli\u003eMeniscus profile reduces spherical aberration\u003c\/li\u003e\n  \u003cli\u003eHigh transmittance minimizes power loss\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this lens fit my CO2 laser cutter or engraver?\u003c\/h3\u003e\n\u003cp\u003eThis Cloudray lens is compatible with most CO2 laser systems that accept a 20mm diameter focus optic and operate within the 40W–200W power range. Verify mechanical holder dimensions and focal spacing in your machine manual before installation to ensure proper alignment and safe operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiameter: 20mm (0.71\") — check holder bore size\u003c\/li\u003e\n  \u003cli\u003eFocal length: 38.1mm (1.5\") — adjust z-axis to match\u003c\/li\u003e\n  \u003cli\u003ePower rating: suitable for 40W–200W CO2 lasers\u003c\/li\u003e\n  \u003cli\u003eStandard meniscus shape fits common focussing assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the lens and how do I maintain it?\u003c\/h3\u003e\n\u003cp\u003eCloudray applies a double-sided solid coating to the ZnSe substrate to enhance surface hardness and resist wiping damage. Proper cleaning with recommended solvents and lint-free wipes prevents coating wear and preserves the lens's high transmittance over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCoating: double-sided, wiping-resistant\u003c\/li\u003e\n  \u003cli\u003eMaterial: CVD ZnSe for stable optical properties\u003c\/li\u003e\n  \u003cli\u003eThickness: 2mm — robust but lightweight\u003c\/li\u003e\n  \u003cli\u003eCleaning: use lens-safe alcohol and soft lint-free cloths\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance can I expect across different materials?\u003c\/h3\u003e\n\u003cp\u003eWith high transmittance and precise focal geometry, the lens delivers repeatable results across engraving and cutting tasks on wood, acrylic, leather, paper, and some thin metals at appropriate settings. Optimal speed and power will vary by material thickness and machine power; always run test cuts to dial in parameters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExcellent for detailed engraving on wood and acrylic\u003c\/li\u003e\n  \u003cli\u003eClean cutting on thin plastics and fabrics with correct settings\u003c\/li\u003e\n  \u003cli\u003eImproved detail reproduction at lower power for delicate work\u003c\/li\u003e\n  \u003cli\u003eTest on scrap material to optimize settings for each job\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Cloudray 20mm FL38.1mm CO2 focus lens is aimed at makers, small-product manufacturers, and laser hobbyists who need a reliable, high-transmittance replacement or upgrade optic for 40W–200W CO2 engraving and cutting systems. It suits users who value stable focus, easy maintenance, and consistent results for detailed engraving or moderate cutting tasks. Make sure your machine accepts a 20mm lens and that you follow safety and alignment procedures during installation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What machines are compatible with this Cloudray lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits CO2 laser engravers\/cutters that accept a 20mm diameter lens and operate between 40W and 200W; confirm holder size and focal spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I clean the lens without damaging it?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use lens-safe isopropyl alcohol and a lint-free wipe; avoid abrasive materials and excessive pressure to protect the coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55298169209169,"sku":"B07B8HLZLH","price":55.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-20mm-lens-front-view_bbd48408-fc0e-4d51-af90-c92a5b1b1e75.jpg?v=1791964561"},{"product_id":"cloudray-co2-laser-lens-20mm-d20mm-fl63-5mm-cvd-znse-meniscus-high-transmittance-for-40w-200w","title":"Cloudray CO2 Laser Lens 20mm D20mm FL63.5mm — CVD ZnSe Meniscus, High Transmittance for 40W–200W","description":"\u003cp\u003e\u003cstrong\u003eCloudray's 20mm CO2 laser lens (D20mm, FL63.5mm) is a high-transmittance ZnSe meniscus optic engineered for reliable engraving and cutting in 40W–200W CO2 laser systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis precision-focused focal lens is made from CVD ZnSe and finished with a double-sided, solid coating designed to resist wiping and extend service life. With a 20 mm diameter and a 63.5 mm focal length, it concentrates CO2 laser energy into a tight, repeatable spot size for consistent engraving detail and cutting performance. The lens is shaped as a meniscus element to manage beam divergence and minimize spherical aberration across typical power ranges used in hobbyist and industrial CO2 laser machines.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this lens affect engraving detail and edge quality?\u003c\/h3\u003e\n\u003cp\u003eThe 63.5 mm focal length combined with a 20 mm aperture produces a focused beam ideal for fine engraving and clean kerf edges when paired with appropriate machine settings. High optical transmittance keeps more laser energy passing through the lens, which improves cutting efficiency and reduces the need for excessive power increases.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFocal length: 63.5 mm for fine detail work and controlled depth.\u003c\/li\u003e\n  \u003cli\u003eDiameter: 20 mm aperture for a compact focused spot.\u003c\/li\u003e\n  \u003cli\u003eTransmittance ≥99.5% to maximize usable laser power.\u003c\/li\u003e\n  \u003cli\u003eMeniscus shape reduces beam distortion and improves spot consistency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this lens compatible with my CO2 laser system (40W–200W)?\u003c\/h3\u003e\n\u003cp\u003eThe lens is specified for CO2 laser systems in the 40W to 200W power range; compatibility depends on your resonator and lens mount dimensions. Because it uses standard D20 mm sizing and a common focal length, it fits many aftermarket and OEM lens holders, but confirm mechanical mounting and beam path alignment before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial: CVD ZnSe suitable for CO2 wavelengths (10.6 μm).\u003c\/li\u003e\n  \u003cli\u003ePower rating: designed for 40W–200W operating range.\u003c\/li\u003e\n  \u003cli\u003ePhysical size: 20 mm diameter, 2 mm thickness for standard mounts.\u003c\/li\u003e\n  \u003cli\u003ePackage: single lens — check your machine’s collimation and holder type.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat durability and maintenance can I expect from the coating and material?\u003c\/h3\u003e\n\u003cp\u003eThe lens uses a double-sided solid coating applied through a precision process to improve wiping resistance and reduce surface damage during cleaning. Proper maintenance—gentle wiping with approved solvents and lint-free wipes—preserves transmittance and extends useful life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCoating: double-sided solid coating for cleaning durability.\u003c\/li\u003e\n  \u003cli\u003eWiping resistance: designed to withstand routine maintenance without rapid coating loss.\u003c\/li\u003e\n  \u003cli\u003eWorking life: extended versus uncoated optics when cared for correctly.\u003c\/li\u003e\n  \u003cli\u003eHandling: avoid scratching, contamination, and thermal shock during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and align the Cloudray lens safely?\u003c\/h3\u003e\n\u003cp\u003eInstall the lens into a clean, secure lens holder with threads or retaining clips that match a 20 mm optic. Ensure beam path alignment to the lens centre, avoid touching optical surfaces with bare fingers, and perform a low-power test cut or engrave to verify focal position before full-power operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse lint-free gloves and approved cleaning fluids for handling.\u003c\/li\u003e\n  \u003cli\u003eConfirm seating and centering in a D20 mm-compatible mount.\u003c\/li\u003e\n  \u003cli\u003eStart with low-power alignment tests to locate the focal point.\u003c\/li\u003e\n  \u003cli\u003eRe-check after thermal stabilisation for consistent results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Cloudray 20 mm D20mm FL63.5mm CO2 laser lens is suited for makers, laser hobbyists, small production shops, and industrial users who need a durable ZnSe meniscus optic for engraving and cutting tasks in CO2 systems between 40W and 200W. It’s particularly useful when you want higher transmittance, repeatable focal behavior, and a coated surface that tolerates routine maintenance without quick degradation. Always verify mechanical fit and machine alignment before use to ensure safe, consistent performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this lens fit my 80W CO2 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes if your machine uses a D20 mm lens holder and accepts a 63.5 mm focal length; confirm mechanical mount and beam alignment before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I clean the Cloudray ZnSe lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use lint-free wipes with approved solvent, avoid excessive rubbing, and always handle the lens with gloves to prevent oils and scratches.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55298169340241,"sku":"B0814HT3MT","price":57.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-view-lens-packaging_f11f8804-5493-4f51-ba41-fcd8aff99b2b.jpg?v=1791964560"},{"product_id":"cloudray-co2-laser-lens-20mm-fl50-8mm-cvd-znse-meniscus-99-5-transmittance-double-sided-coating","title":"Cloudray CO2 laser lens 20mm FL50.8mm — CVD ZnSe meniscus, ≥99.5% transmittance, double-sided coating","description":"\u003cp\u003e\u003cstrong\u003eCloudray's CO2 laser meniscus lens with a 20mm diameter and 50.8mm focal length is a high-transmittance CVD ZnSe optical component designed for CO2 engraving and cutting systems (40W–200W).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis precision lens is manufactured from chemical vapor deposited zinc selenide (CVD ZnSe) and finished with a double-sided hard coating to resist wiping and extend service life. It is shaped as a meniscus element to optimize beam convergence for common CO2 laser modules, and its ≥99.5% transmittance helps maintain cutting and engraving performance. Supplied individually, the lens is ready to install in compatible laser heads and mirror-focal setups.\u003c\/p\u003e\n\n\u003ch3\u003eWhat are the exact dimensions and optical specs of this Cloudray lens?\u003c\/h3\u003e\n\u003cp\u003eThe lens measures 20 mm in diameter with a focal length of 50.8 mm and a centre thickness of approximately 2 mm. Its meniscus profile and high transmittance are tuned for mid-infrared CO2 wavelengths used in engraving and cutting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial: CVD ZnSe (chemically vapor deposited zinc selenide)\u003c\/li\u003e\n  \u003cli\u003eDiameter: 20 mm (0.79\")\u003c\/li\u003e\n  \u003cli\u003eFocal length: 50.8 mm (2\")\u003c\/li\u003e\n  \u003cli\u003eThickness: ~2 mm (0.07\")\u003c\/li\u003e\n  \u003cli\u003eTransmittance: ≥99.5%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich laser powers and machines is this lens compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis Cloudray lens is built to tolerate the thermal and optical loads typical of CO2 laser machines in the 40W to 200W range. It works with most CO2 engraver and cutter heads that accept a 20 mm diameter meniscus lens and 50.8 mm focal configuration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible power rating: 40W–200W\u003c\/li\u003e\n  \u003cli\u003eUse in CO2 engraving and cutting machines\u003c\/li\u003e\n  \u003cli\u003eSuits laser modules designed for 20 mm optics and 50.8 mm focal lengths\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is the lens protected and what maintenance is recommended?\u003c\/h3\u003e\n\u003cp\u003eCloudray applies a durable double-sided solid coating that improves wiping resistance and helps the lens withstand routine cleaning. To prolong optical quality, clean only with approved lens tissues and solvent, avoid abrasive wiping, and store in a dust-free case when not installed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCoating: double-sided solid coating for wiping resistance\u003c\/li\u003e\n  \u003cli\u003eCleaning: use lens tissue and appropriate solvent; avoid scratches\u003c\/li\u003e\n  \u003cli\u003eStorage: keep in a protective container, away from dust and humidity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this lens affect beam quality and cutting\/engraving performance?\u003c\/h3\u003e\n\u003cp\u003eWith a meniscus shape and very high transmittance, the lens preserves beam energy while helping to form a focused spot appropriate for cutting and detailed engraving. Its optical finish reduces scattering and absorption losses, supporting consistent processing results when matched to the correct focal distance and laser power.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaintains high energy throughput (≥99.5% transmittance)\u003c\/li\u003e\n  \u003cli\u003eMeniscus profile improves focus control for cutting and fine engraving\u003c\/li\u003e\n  \u003cli\u003eHard coating reduces surface wear that can degrade beam quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Cloudray 20 mm × 50.8 mm CVD ZnSe meniscus lens is intended for technicians, hobbyists, and small-production operators who maintain or upgrade CO2 laser engraving and cutting machines rated roughly 40W–200W. It suits anyone needing a high-transmittance replacement or spare lens that balances durability and optical performance for routine workshop use.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this lens compatible with my 60W CO2 laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Cloudray lens supports CO2 systems in the 40W–200W range, so it will work with a 60W unit if the head accepts a 20mm lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I clean the Cloudray CVD ZnSe lens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use lens tissue and a recommended solvent, avoid abrasive cloths, and store in a dust-free container to protect the coating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55298169274705,"sku":"B07B8J9PMV","price":57.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-packaging-lens.jpg?v=1791964560"},{"product_id":"cloudray-round-k9-crystal-blocks-for-laser-engraving-4-pack-3-15-x-1-2-clear-blocks-for-2d-3d-photo-engraving","title":"Cloudray Round K9 Crystal Blocks for Laser Engraving — 4-Pack 3.15\" x 1.2\" Clear Blocks for 2D \u0026 3D Photo Engraving","description":"\u003cstrong\u003eCloudray 4 PCS Round Crystal Blank Blocks are premium K9 crystal pieces designed for precise 2D surface engraving and detailed 3D inner-photo engraving.\u003c\/strong\u003e\n\n\u003cp\u003eThese round blank blocks come as a set of four highly transparent K9 crystal pieces engineered for laser engraving systems. Each block offers clear optics and a smooth finish to translate photographs, logos, and fine line art into crisp 3D or 2D engravings. Packaged with individual protective wrap and a sturdy outer carton, this kit is built for makers, trophy shops, and craft studios that demand reliable material for commemorative keepsakes and decorative displays.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these crystals perform with 3D inner engraving machines?\u003c\/h3\u003e\n\u003cp\u003eThe K9 glass composition and high internal clarity let laser beams focus cleanly beneath the surface, producing detailed 3D images and photo reproductions. You’ll get well-defined depth and contrast when converting grayscale photos to voxel-based inner engravings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh transparency for accurate focal penetration\u003c\/li\u003e\n  \u003cli\u003eSmoother interior surfaces reduce scattering and noise\u003c\/li\u003e\n  \u003cli\u003eConsistent light transmission supports fine dot matrices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use these blocks for simple 2D surface engraving and custom text?\u003c\/h3\u003e\n\u003cp\u003eYes—these blocks are excellent for surface marking as well. The polished exterior accepts crisp 2D etching, making them suitable for logos, dates, short messages, and simple line art.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePolished faces yield clean surface lines\u003c\/li\u003e\n  \u003cli\u003eWorks with common laser settings for shallow etch\u003c\/li\u003e\n  \u003cli\u003eGreat for nameplates, small awards, and labels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the physical size, packaging, and handling details?\u003c\/h3\u003e\n\u003cp\u003eEach set includes four round blocks; every piece is individually wrapped and boxed to minimize transport damage. Knowing the dimensions helps you plan fixtures, jigs, and engraving bed placement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSet includes 4 round crystal blocks for multiple projects\u003c\/li\u003e\n  \u003cli\u003eEach block measures approximately 3.15\" diameter x 1.2\" thickness\u003c\/li\u003e\n  \u003cli\u003eIndividually wrapped and boxed; gross set weight ~4.2 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat creative projects are these best suited for?\u003c\/h3\u003e\n\u003cp\u003eThese blocks are a flexible canvas for personal gifts, awards, and retail products. They adapt well to 3D photo keepsakes, commemorative pieces, small trophies, bespoke business giveaways, and decorative elements in exhibition displays.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3D crystal photos and inner-voxel portraits\u003c\/li\u003e\n  \u003cli\u003ePersonalised wedding, anniversary, or memorial keepsakes\u003c\/li\u003e\n  \u003cli\u003eSmall desktop awards, souvenir designs, and retail items\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Makers, small business owners, and engraving professionals who need compact, visually clear crystal blanks for both surface and inner-volume laser engraving. If you work with 2D etching or 3D photo conversion software and want consistent optical quality for display pieces or personalised gifts, this Cloudray 4-piece kit provides a convenient, protected supply of K9 crystal blocks sized for desktop machines.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these blocks compatible with standard 3D laser engraving machines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The K9 crystal clarity and size make them suitable for most desktop 2D and 3D laser engraving setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the exact dimensions and how many come in a pack?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Each pack contains 4 round blocks, approximately 3.15 inches diameter by 1.2 inches thick.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55298549743953,"sku":"B0G7BZ3L3B","price":89.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-front-packaging.jpg?v=1791967770"},{"product_id":"cloudray-400x400mm-honeycomb-laser-bed-with-4-fixture-clamps-2mm-black-anodized-aluminum-anti-backburn","title":"Cloudray 400x400mm Honeycomb Laser Bed with 4 Fixture Clamps — 2mm Black Anodized Aluminium, Anti-Backburn","description":"\u003cp\u003e\u003cstrong\u003eCloudray’s 400x400mm honeycomb laser bed is a corrosion-resistant aluminium support platform with four fixture clamps that improves cut quality and holds thin or irregular materials steady for CO₂ laser and CNC work.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis honeycomb bed is a purpose-built accessory for desktop CO₂ laser cutters and CNC machines, sized to support a 15.7\" x 15.7\" work area. Constructed from black anodized aluminium alloy with a 2 mm honeycomb plate thickness, it prevents backside burns, reduces warping of flexible substrates, and promotes airflow and debris evacuation under the workpiece. The included four-positioning fixture clamps make it easier to secure small, thin, or oddly shaped materials that commonly slip or lift during cutting and engraving.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this honeycomb bed reduce burn marks and improve airflow?\u003c\/h3\u003e\n\u003cp\u003eThe open-cell honeycomb structure lifts the workpiece off the solid bed so the laser beam exits cleanly and smoke is drawn away, minimizing scorch on the underside and improving edge clarity. The black anodized finish resists corrosion while enhancing durability in workshop environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHoneycomb pattern allows smoke and heat to dissipate quickly\u003c\/li\u003e\n  \u003cli\u003e2 mm thick aluminium cells support thin, flexible materials evenly\u003c\/li\u003e\n  \u003cli\u003eBlack anodized surface protects against corrosion and wear\u003c\/li\u003e\n  \u003cli\u003ePrevents direct contact between material and solid bed to reduce back burn\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it fit my machine and how easy is assembly?\u003c\/h3\u003e\n\u003cp\u003eThe bed is made of four aluminium panels, each about 400 x 100 mm, that align to form a 400 x 400 mm working surface suitable for most desktop CO₂ laser cutters and small CNC platforms. Assembly is fast and tool-free for most setups, and the compact packaged dimensions make storage and transport convenient.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFour-panel layout builds into 15.7\" x 15.7\" working area\u003c\/li\u003e\n  \u003cli\u003eEach panel measures approximately 400 x 100 mm for modular replacement\u003c\/li\u003e\n  \u003cli\u003eCompact package size (≈17\" x 5.9\" x 2.7\") and lightweight 3.3 lbs gross\u003c\/li\u003e\n  \u003cli\u003eAligning edges simplifies quick installation and removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do the included positioning fixture clamps help during cutting?\u003c\/h3\u003e\n\u003cp\u003eThe set of four positioning fixture clamps secures materials without heavy adhesives or tapes, raising and stabilising thin or irregular shapes to maintain consistent focal distance and reduce movement. This is particularly useful when cutting small parts, flexible sheets, or multi-piece jigs where repeatable placement matters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFour clamps provide multi-point hold for irregular shapes\u003c\/li\u003e\n  \u003cli\u003eElevates small or thin pieces to maintain consistent focus\u003c\/li\u003e\n  \u003cli\u003eReduces need for adhesives that can interfere with cuts\u003c\/li\u003e\n  \u003cli\u003eHelps prevent material sagging and shifting during long cuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance keeps the bed performing at its best?\u003c\/h3\u003e\n\u003cp\u003eRoutine cleaning and gentle handling preserve the aluminium finish and the honeycomb geometry that help airflow and cut quality. Using a soft brush or cloth prevents scratches while keeping reflectivity and removing debris between jobs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBrush away debris after each use to avoid buildup\u003c\/li\u003e\n  \u003cli\u003eUse a soft cloth or brush to avoid surface scratches\u003c\/li\u003e\n  \u003cli\u003eWipe panels regularly to maintain reflectivity and airflow\u003c\/li\u003e\n  \u003cli\u003eUser manual included for care and installation tips\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Makers, prototype shops, educators, hobbyists, and small production studios that use CO₂ laser cutters or compact CNC routers will benefit from the Cloudray 400x400mm honeycomb laser bed. It’s especially useful for anyone who cuts thin, flexible, or small-sized materials and needs reliable clamping, cleaner underside cuts, and quick setup in a desktop or benchtop environment.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this bed fit my desktop CO₂ laser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It forms a 400x400mm (15.7\" x 15.7\") surface from four 400x100mm panels—check your machine's throat size to confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the clamps hold very thin or irregular materials?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The four positioning fixture clamps secure small, thin, and irregular pieces while keeping them elevated for consistent focus.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cloudray","offers":[{"title":"Default Title","offer_id":55300855005521,"sku":"B0GCHQVNLN","price":93.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/cloudray-honeycomb-bed-front-overview.jpg?v=1791975914"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/collections\/cloudray-honeycomb-bed-front-overview.jpg?v=1792144011","url":"https:\/\/craftiche.co.uk\/collections\/cloudray.oembed","provider":"Craftiche","version":"1.0","type":"link"}