Five Steps to Properly Replace the Protective Lenses of a Laser Cutting Machine

Protective lenses are very important precision components in the optical path system of laser cutting machines, and their cleanliness has a significant impact on the processing performance and quality of laser cutting machines. So, how to carry out the correct replacement operation for protective lenses that have reached their service life?

Replacement Procedure

1. Wipe

Wet the clean cloth with alcohol (cover the alcohol bottle in time to avoid accidentally overturning), and gently wipe the periphery of the protective lens with a clean cloth. This process aims to prevent dust from entering the cavity during disassembly.

2. Unloading

Use a hexagon wrench to remove the hexagon screw, then gently pull out the protective lens insert, and seal the chamber with masking paper to prevent dust from entering. Insert the protective lens locking tooling into the hole behind the protective lens insert card, rotate counterclockwise to remove the protective lens, and then insert the block to pour the lens onto a dust-free cloth.

3. Qing Dynasty

Gently wipe the inside of the protective lens insert with a dust-free cloth face stick to clean it.

4. Replace

Take out the new protective lens, tear off the protective paper on one side, and then gently cover the protective lens insert on the protective lens. Turn it over, and then tear off the protective paper on the other side of the lens. Install the pressing lens and locking ring in turn. Use the protective lens locking tool to lock the insert clockwise.

5. Installation

Remove the masking paper, gently insert the protective lens insert into the cavity, and lock the hexagon screw tightly.

Protective Lens of a Laser


Hanzhong Brisun Optics Co., Ltd. Is the high precision optical element manufacturer provides customized production of Various optical lenses, including spherical lens, cylindrical lens, optical window, mirror, prism, filter, metal base mirror and other high-precision optical elements. The base materials include various optical glass, fused quartz, calcium fluoride (CaF2), zinc selenide (ZnSe), germanium (GE), silicon (SI), sapphire, metal and other materials. And provide antireflective film, high reflection film, spectroscopic film, metal film and other optical coatings.

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