Air Cooling(Standard Shaft)
Advantage of Air cooling: Easy to build, no need extra equipment. If you want to build electric motorcycle, which have plenty wind to provide cooling air, air cooling will be perfect choice for you.
Liquid Cooling
Advantage of Liquid Cooling: You'll get a better cooling result. Besides, you can use it close position, like a car, outboard, which has no enough wind coming to cool the motor. But you need to make an extra pump to make it work.
We have been leading manufacturer of general-purpose brushless dc (BLDC) motors and Permanent Magnet Synchronous Motors (PMSM) since 2006, with power range from 200W to 30KW, and the voltage range from 24V to 144V DC. It has been widely used for many applications, eg., auto industry, electric motorcycles, scooters, electric cars, forklifts, go-kart, golf buggies, electric boats etc. It has better performances than other traditional dc motors.
Our BLDC/PMSM motors are specially designed with our own patented axial flux technologies. The main difference between the PMSM and BLDC is regarding its control mechanism. BLDC motor uses the Trapezoidal control while PMSM motor uses the Sinusoidal control. The best thing is that our EZ controllers support both Trapezoidal control and Sinusoidal control in a single controller. User can choose/update the control firmware they like via free App provided (downloadable on controller page) over the air (OTA). Essentially, both BLDC and PMSM have distinct advantages and disadvantages. The optimal choice between these two motor types depends on the specific application and the unique features of your applications. Golden Motor is ready to provide either solutions you want.
