Lower Protective Window

The Lower Protective Window for Bochu BLT 4 Series and 6 Series Laser Cutting Heads is a vital protective optical component that safeguards the internal lens system from contamination, debris, and mechanical damage during high-power laser cutting. Designed with advanced anti-explosion sensors and real-time temperature monitoring, it helps prevent lens shattering and automatically stops the laser upon detecting contamination or overheating, ensuring stable cutting quality. The window features enhanced sealing with a dust cover plate to extend core lens lifespan, along with built-in amplifier sensors for improved signal stability. Its robust construction supports laser powers from 8 kW up to 40 kW in various BLT models, optimizing cutting precision and reducing maintenance costs through easy part replacement and collision protection.