1.low rotation speed, low noises, 2.large ... GL61250 DescriptionAutomatic control by microcomputer (PC), with functions of start, stop, reverse, overload automatic reverse, feature ... return and over-loading returns automatism, with characteristics of big torque in low speed, low noise. ... big solid material like television, washing machine, shell of refrigerator, big size pipe, pipe fittings, forklift ...