MaEr Fan Motor Co. Ltd has specialized in manufacturing external-rotor motor fans for approximately 25 years. The YFW series external rotor motor produced by the company has three-phase motor (S-type), single-phase capacitor running motor (D type), shaded pole motor, energy-saving EC fan and motor. The rated motor speed is between 500r/min and 3000r/min, while output power range is between 5w and 3000w, widely used in centrifugal fans and axial fans. With advantages of compact structure, high efficiency, low noise, beautiful appearance, convenient installation, and stable operation, the YWF series external toro axial fans are available in various specifications ranging from Ø175 to Ø900. They are widely applied in mechanical equipment, refrigeration equipment and household appliance manufacturing industries.