Stepper Motors

Stepper motors are brushless motors that turn their shaft by a set step angle with each pulse applied to their windings and can position without a feedback element. They are used in CNC machines, 3D printers, and labeling, filling and packaging machines to move axes repeatably. This category includes GMT stepper motors with NEMA 17, NEMA 23, NEMA 24, NEMA 34 and NEMA 42 frames; torques such as 0.34 Nm, 2 Nm, 4.5 Nm, 12 Nm and 20 Nm, types whose names state pulse or analog input, and models with the drive integrated into the housing are available. Choose the motor according to the torque and operating speed the load requires, the flange and shaft dimensions, the phase current, and the current and voltage ratings of the drive. The NEMA number defines the side dimension of the flange: 42 mm applies to NEMA 17, 57 mm to NEMA 23 and 86 mm to NEMA 34. Since torque decreases as speed increases, the manufacturer's torque-speed curve should be used instead of the holding torque. A stepper motor operating in open loop may lose steps under overload; it does not replace a servo motor on axes that require high speed and acceleration.

Products

How to choose Stepper Motors

Stepper motors are brushless motors that turn their shaft by a set step angle with each pulse applied to their windings and can position without a feedback element. They are used in CNC machines, 3D printers, and labeling, filling and packaging machines to move axes repeatably.

  • Separate sensing, motion control, logic processing and operator interface requirements.
  • Select signal type, supply voltage, communication protocol and I/O count for the machine network.
  • Verify housing size, sensing distance and PNP/NPN output polarity against the PLC input card.

Frequently asked questions

What is Stepper Motors and where is it used?

Stepper motors are brushless motors that turn their shaft by a set step angle with each pulse applied to their windings and can position without a feedback element. They are used in CNC machines, 3D printers, and labeling, filling and packaging machines to move axes repeatably.

What should I compare when choosing Stepper Motors?

Choose the motor according to the torque and operating speed the load requires, the flange and shaft dimensions, the phase current, and the current and voltage ratings of the drive.

Where can I find technical details for Stepper Motors products?

Since torque decreases as speed increases, the manufacturer's torque-speed curve should be used instead of the holding torque.

Stepper Motors Selection Guide: Technical Criteria & Application Standards