Synmot high-speed servo motors are permanent magnet synchronous motors with the rigid rotors, the main features including: ultra energy-saving, high response and accuracy, low noise and low temperature rise. The rotor is made of high-performance rare-earth permanent magnet material, works reliably and to maintain less. With low rotary inertia,it is easy to improve the rapidity of system, small volume, high speed and high torque. Using the high-resolution encoder(17-bit, 33-bit)to improve the position control accuracy. It controls the current according to d-p principal axis transformation, which increase the torque control accuracy from ±5% to±2%. Synmot servo motors have been widely used in injection molding machinery,textile machinery, CNC machinery etc.