Shanghai Dasu Motor's products are mainly used in screw air compressors, piston air compressors, etc., and cooperate with many world-renowned air compressor brands. It has a large starting torque, can operate normally when overloaded, and can adapt to a certain range of voltage fluctuations and frequent starting requirements. Adequate heat resistance, use insulating materials above F level to avoid the temperature rise of the motor under the operating conditions of fully enclosed and rotary air compressors, accelerate the aging of the insulating material, and cause damage to the motor. Can withstand voltage fluctuations, vibration and shock, optimize the design of electromagnetic schemes and electromagnetic coils, use better winding materials, and have good mechanical strength. At the same time, when the voltage fluctuation range is ±10%～±15%, ensure normal start-up operation.