... automatic reverse, feature return and over-loading returns automatism, with characteristics of big torque in low speed, low noise. Convenient to ... crushing the big solid material like television, washing machine, shell of refrigerator, big size pipe, pipe fittings, forklift splint, tyres, ... .3.Improved based on GL61180, GL61180A enlarge the base of the Speed Reducer, big torque in low speed. Shell ...