Spindle motors are typically used for high-speed continuous rotation, while servo motors are used for precise control of position, speed, and torque.
Servo motors rely on feedback mechanisms like encoders, to provide precise control. AC spindle motors typically do not require such feedback.
Spindle motors are designed for high torque and high-speed rotation, while servo motors are designed for precise position and speed control.
Servo motors are generally more efficient than spindle motors, as they are designed for precise control and can adjust their output to match the load. AC spindle motors operate at a fixed speed and output.
AC spindle motors are generally less expensive than AC servo motors, as they do not require the same level of precision controls.