Cloudray CO2 Laser Molybdenum Mirror 30mm × 3mm — 99.2% Reflectivity, Durable Uncoated Replacement

Cloudray 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.

If 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.

How does this mirror improve beam performance?

The 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.

• Reflectivity up to 99.2% reduces power loss along the optical path.
• Precisely machined 30mm diameter and 3mm thickness for accurate alignment.
• Polished molybdenum surface provides consistent reflection without fragile coatings.

Will this fit my laser system and mountings?

The 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.

• Standard 30mm diameter fits many commercial mirror mounts.
• 3mm thickness ensures secure retention without wobble in typical clips.
• Uncoated molybdenum avoids delicate surface layers that can peel in older mounts.

How durable is the molybdenum construction during regular use?

Molybdenum 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.

• Solid molybdenum body tolerates elevated operating temperatures.
• Polishing reduces microscopic scattering that leads to performance drift.
• Uncoated surface avoids coating delamination issues in dusty or humid shops.

How should I handle, clean, and install the Cloudray Mo mirror?

Handle 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.

• Wear gloves and lift by the rim to protect the reflective surface.
• Use isopropyl alcohol and a lint‑free swab for gentle cleaning.
• Verify alignment after installation to ensure optimal focus and performance.

Who 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.