Raytools laser protective lenses

The protective lens serves as a transparent barrier separating the harsh cutting environment from the sensitive optics inside the Raytools head. It blocks fine dust and splashes, reduces soot build-up and prevents overheating around the focusing lens. The result is consistent beam power, easier focus maintenance and cleaner edges without the need for frequent parameter adjustments. Replacing a worn lens is far less costly than servicing the main focusing lens or the entire head, and regular inspection significantly extends the optical system’s lifetime.

When choosing a protective lens, check compatibility with the head model (upper/lower position, diameter and thickness), type of anti-reflective coating, and the quality of the edges and surface. Proper fitting directly affects beam transmission and process stability — incorrect size or poor coatings can cause power loss, overheating and variations in cut quality. Correct installation is also essential: ensure a clean seat, proper orientation of the lens and even sealing pressure to prevent leaks in the gas channel.

Protective lenses are considered consumable parts. Signs of wear include scratches, discolouration from overheating, pitting from spatter or visible residue that cannot be safely removed. Always use dedicated optical cleaners and lint-free wipes, avoid touching the surface with fingers, and maintain a clean workspace during replacement. To maintain continuous production, it is advisable to keep a spare lens of the correct size on hand — replacement is quick and immediately restores full cutting performance.