12000 pound electric winchThe internal working mechanism is that the electricity from the car first drives the motor, and then the motor drives the drum to rotate. The drum in turn drives the drive shaft, which in turn drives the planetary gears, generating strong torque. Subsequently, the torque is transmitted back to the drum, which then drives the winch. There is a clutch between the motor and the reducer, which can be switched on and off through a handle. The braking unit is inside the drum, and when the cable is tightened, the drum automatically locks.