The Lower Protective Window Cartridge for the Bochu BLT 3 Series Laser Cutting Head is a high-quality optical component designed to protect the internal lens and optical elements from contamination, debris, and mechanical damage during cutting operations. It features real-time temperature monitoring to prevent window shattering, and gas pressure sensors ensure stable cutting conditions by detecting insufficient gas pressure before laser ignition. The cartridge is designed for easy replacement and integrates tightly with the cutting head’s water cooling and sensor systems to maintain performance stability. Its durable construction ensures enhanced lens lifespan and consistent cutting quality in medium to low power laser applications up to 4 kW.The Lower Protective Window Cartridge for the Bochu BLT 3 Series Laser Cutting Head is a critical protective optical element designed to shield the internal lens system from contamination, debris, and damage during laser cutting operations. It features real-time temperature monitoring and integrated gas pressure sensors to prevent window shattering and maintain stable cutting conditions. The cartridge is engineered for easy replacement, supporting efficient maintenance and extended lifespan of the cutting head components, ensuring consistent cutting quality for medium and low-power laser applications up to 4 kW.