1. The accuracy of the stepping motor is superior to that of the servo motor, because it does not accumulate errors, and usually only needs to do open-loop control, but the servo motor is better than the stepping motor in terms of responsiveness.

2. The stepper motor is prone to low frequency vibration at low speed. When it works at low speed, damping technology or subdivision technology is generally used to overcome the low frequency vibration phenomenon, while the operation of the servo motor is very stable, even at low speed. Vibration occurs.

3. It takes hundreds of milliseconds for a stepper motor to accelerate from a standstill to a working speed, while the acceleration performance of the AC servo system is better, generally only a few milliseconds, and it can be used in control occasions that require rapid start and stop.

4. Stepper motors generally do not lose steps and are easy to control, while servo motors, especially low-end servo motors, have inaccurate speeds and are inconvenient to control and operate.

5. Stepper motors do not have overload capability, while servo motors have strong overload capabilities.