Choosing the Right Type of Stepper Motor for Your Application

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Choosing the Right Type of Stepper Motor for Your Application

 

Stepper motors are popular for their ability to position accurately as well as their ease of use.  Both the amount of rotation and the speed are controlled easily with the same digital square wave pulse signal.  Unlike servo motors, stepper motors do not need an encoder to operate.  Example applications of stepper motors are CNC machines, index tables, robotics, scanners, and more recently, 3D printers.

There are a variety of stepper motors available in the market.  The most popular type of motor is the hybrid type, which includes the permanent magnet from the permanent magnet type, and the tooth construction from the variable reluctance type.  There are 2-phase, 5-phase, and high resolution designs.  Motors can also be pre-assembled with additional options for different purposes.  For example, there are motors with an electromagnetic brake, encoder, or gearhead.

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