Half height platform screen doors (also known as platform screen doors or semi enclosed platform screen doors) Automatic Platform Gate， APG, abbreviated as APG, is a platform equipment for railway transportation. Its assembly purpose is the same as that of platform screen

1) The door machine drive system mainly consists of a drive device, transmission device, locking device and unlocking device, position detection switch, etc2) Adopting DC motor3) The speed regulation performance and output torque of the motor meet the requirements of the door leaf motion curve and p