This device is specifically designed to enhance the safety of personnel working near movable doors. It uses special pneumatic controls to adjust movement speed and end-point deceleration, thereby effectively preventing accidents where personnel may be crushed when the movable door descends. The window of this device is made with double-layered organic glass, ensuring durability and the ability to withstand heavy usage. Moreover, this device has a well-designed structure that not only adds to its attractive appearance but also makes it easy to transport. The detachable form factor is perfect for those who are always on the move. Additionally, this device has a long service life and is convenient to maintain. It can be customized to fit different machine models and is suitable for a range of ultrasonic equipment sound insulation needs. Finally, it adheres to international standards and has been certified by CE and FCC, ensuring that it is a high-quality product that you can trust.