YD series varible pole multi-speed three-phase asynchronous motors are one of the main series products derivig form three-phase series. This kind of motor can change rotational speed to meet the requiremtnets of load state, so that they can property match the demands of power and simplity adjustable speed system.YD series varible pole multi-speed three-phase asynchronous motors are widely used in such insustrial and agricultural departments, as machine tools,mining metallurgy, spinning and weaving, printing and dyening, chemical industry and agricultural machinery, etc.

For similar correspondent relationship between power rank and insullation dimensions, YD series varible pole multi-speed three-phase asynchronous motors are eqivalent to other foreign advanced machines, and therfore they are matching width single -machine or machine tool for export as well as spare motors for similar types imported from abroad.