China's Hydraulic Winch Enjoys A High Reputation All Over The World

The rotary locking device of hydraulic winch refers to the device that locks the rotary part so that it can not rotate when the boom crane is in the transportation, driving or non working state. The overload operation of hydraulic winch is often an important cause of lifting accidents. Slight damage to crane parts can overload the motor and deform the mechanism, and serious accidents such as beam breaking, tower falling, arm folding and tipping will be caused. Overload protection devices shall be used to prevent such accidents. The lifting weight limiter and lifting torque limiter are collectively referred to as overload protection devices.