The Sluice Gate Hoist is composed of a frame, a hoisting mechanism and an electrical control system. The arc door winch opening and closing mechanism is mainly composed of a pulley block, a reel set, a driving device (including a form gear pair, a speed reducer, a brake, a motor, etc.) and a safety device, and the hoist passes through a spreader located on the pulley assembly pulley. The gates are connected to open and close the gates. Arc door winch hoist working principle: driven by the motor to drive the brake wheel and reducer drive open
The gear pair and the reel rotate, and the wire rope on the reel is lifted and lowered by the pulley and the balance pulley.

Advantage:
Because the winch type hoist has many speed reduction programs and large speed ratio.
It has been enlarged by the pulley block and is suitable for gates with larger orifice sizes and heads.
The wire rope can be wound in a single layer or multi-layered to facilitate opening of a gate or deep hole gate with a large stroke.
The direction of the force of the wire rope can be appropriately oscillated, or the direction of the force can be changed by the additional embedded diverting pulley. Therefore, the cooperation of the gate and the hoist has greater flexibility.
When electric is used, the speed of opening and closing is fast, and it is suitable for accident gates and gates that are frequently opened and closed