The power of AC Asynchronous Series Motor covers 4kW-180kW, with water or air cooling mode adopted and protection grade of IP55 or above. The motor is provided with drawn aluminum frame or die-cast aluminum mechanism. It is with the characteristics of light structure, small volume, and light weight, widely suitable for all kinds of minicars and passenger vehicle. Currently, the voltage level of 36V, 42V, 48V, 72V, 180V or 400V can be selected for AC Asynchronous Series Motor. The double flat key and spline form are used in the structure, which can also be customized as required.