Adopting pulse width technology to make the speed more stable and strong at low speed. With over-current protection cut-off device to make the performance more reliable. With soft start device to eliminate excessive motor starting current. Installed in well-ventilated, no violent impact, no vibration, no explosive hazardous media and no conductive metal particles occasions. The motor has a quiet operation, small size, high speed, the motor tail to strengthen the cooling fan, you can rest assured that a long time to work., Manufacturer: QAXRZCUCD