Hang-sun electric Co., ltd is located in Cixi Ningbo, which was found in 2005, with more than 50 employees working in the factory now.Hang-sun electric company main produce YD seriers three phase electric motor, it is one of the main derived series of Y series, a national unified designed latest product in China and a replacement type for the JOD2 series. It can change speed easily. The speed of this series motor can be changed step by step according to the requirements of load characteristics, thereby reaching the aims of economizing on electricity and simplifying the system of speed variation. This series of motor has great starting torque and low noise and vibration, and its mounting dimensions are complied with the standard of the International Electrotechnical Commission (IEC), it has a fairly good interchange ability as compared with the similar products of the same kind so that it is easy to maintain and used widely in the industrial departments of machine tools, chemical industry, textile, metallurgy and mine, etc.