Winch, light and small lifting equipment that uses a drum to wind wire ropes or chains to lift or pull heavy objects, also known as trolley.The winch can lift vertically, horizontally or tilt to pull heavy loads. There are three types of winches: manual winch, electric winch and hydraulic winch. Mainly electric winch. It can be used as a stand-alone component or as a component in machinery such as lifting, road construction and mine hoisting.