Choosing the right motor is critical for the efficiency and productivity of the motion control applications. It can be difficult to choose between servo motors and stepper motors as there are so many considerations: cost, torque, efficiency, speed, circuitry and more.
## Differences in Servo Motors and Stepper Motors for Motion Control Applications
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## Stepper Motors in Motion Control: Pros and Cons
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### *Pros:*
> *Pros:*
- Stepper motors, due to their high pole count, offer precision drive control for motion control applications.
- They have a high torque at low speeds, and they’re also relatively inexpensive and widely available.
### *Cons:*
> *Cons:*
- At high-speeds, stepper motors lose nearly all of their torque, sometimes up to 80%.
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## Servo Motors in Motion Control: Pros and Cons
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### *Pros:*
> *Pros:*
- The main benefit of servo motors is they provide high levels of torque at high speed – something stepper motors can’t do.
- They also operate at 80 – 90% efficiency.
- Servo motors can work in AC or DC drive, and do not suffer from vibration or resonance issues.
### *Cons:*
> *Cons:*
- Servo motors are more expensive than stepper motors. Add in the cost of an encoder, and often a gearbox, and the whole system can become quite costly.
