「BT240S」is highly dust-proof: the dust-proof grade is IP65, and the light path is fully enclosed, and the possibility of lens contamination is almost zero. Motion picture zero focus: the scale can be adjusted flexibly, so that the zero focus position is unified, no longer worry about adjusting the process parameters. Efficient water cooling: The focusing lens, collimator lens, and nozzle have built-in cooling functions, which strongly solve the problem of cutting heating. Optimized structural design: Integrated body design, improved QBH optical fiber interface no longer stuck due to water leakage and rust.