The BT240S series is a fiber cutting head used by RAYTOOLS AG for the production and application of 3000W industrial lasers. Its overall optimized optical focusing system, annular air path and turbulent air flow and nozzle cooling design, built-in water cooling unit and focus position fine-tuning and other features can Fully meet the customized needs of different applications such as thin plate and medium-thick plate cutting in industrial laser processing environments. A variety of flexible fiber interface options and optical collimation and focusing configurations allow it to adapt to various mainstream fiber lasers in the industry.