A servo synchronous motor, also known as a synchronous servo motor, is a type of electric motor that operates in synchronism with an AC power source. It is commonly used in high-performance servo systems where precise control of speed, position, and torque is required.

The motor utilizes a rotor with permanent magnets and a stator with windings. The magnetic field of the rotor interacts with the rotating magnetic field generated by the AC power supply, resulting in synchronous rotation. This synchronous operation ensures accurate and consistent positioning and speed control.

Servo synchronous motors are often paired with feedback devices such as encoders or resolvers to provide real-time position and speed feedback to the control system. This feedback enables precise control and allows for features like motion profiles, torque control, and high-speed response.

These motors are commonly used in applications such as robotics, CNC machines, industrial automation, packaging equipment, and any application that requires precise motion control. The synchronous operation and high torque density of servo synchronous motors make them suitable for demanding applications where accuracy and performance are critical.