2 5 rings pulley hook block roller cars electric chain hoist that two-speed electric chain hoist. There are two speeds, fast and slow. Electric chain hoist is a mature technology products, the use of safe, high quality, long life, high efficiency, widely used in industrial, commercial, craft and service sector companies in a variety of places, is to improve efficiency, improve working conditions ideal equipment. Large-tonnage electric car with electric chain hoist is a starting weight of 125-2000kg lifting and operating equipment, small size, light weight, flexible operation, etc.. Large-tonnage electric car with electric chain hoist designed according to the principle power conical rotor brake motors with constant speed, fast-slow lifting speed in various forms. Large-tonnage electric car with electric chain hoist in the spur gear reducer, reducer internally mounted anti-friction clutch overload device, so electric chain hoist from overload withstand extreme, high strength wear-resistant steel chain enhance security and stability. Therefore, with a very safe reliability. Electric chain hoist with pendant direct control and indirect control of two forms. Indirect control as safe voltage 36 volts, flashlight door protection class IP54, conical rotor motor protection class IP54. Large-tonnage electric car with electric chain hoist