Electromagnetic brake is a connector that transmits the torque of the active side to the passive side. It can be freely connected, disconnected or braked as needed.
For the crane lifting operation, the braking device is mainly to avoid the fall of the boom and the lifting object, to avoid the crane and the turntable to slide due to the component force and wind force of the ramp, to avoid the deceleration of the mechanism in operation, and finally stop moving.