Technical Blog

What is a Stepper Motor?

Stepper Motors, also known as step motors or stepping motors, are brushless DC motors that offer precise position and supreme holding torque. Stepper motors move in discrete steps and come in a variety of sizes, styles and electrical characteristics.

The rotor of a stepper motor rotates in steps, hence why they are called stepper motors.  The parts of the rotor will be either repelled away from the magnet or drawn towards it, as the electro-magnets in the stator are switched off and on. An open loop controller can be used due to the use of stepping technology; this simplifies the machine design, making the cost of the system lower than that of a servo motor.

With stepper motors from Heason, motion control becomes fast, precise and extremely cost effective. The two-phase motors we have can move at exactly 1.8° increments, which amount to 200 steps per revolution. Heason also have micro stepper drives, which break the 1.8° increments into even smaller steps.

What is a Stepper Motor used for?

  • Positioning – Stepper motors move in precise and repetitive steps. They excel in applications that require precise positioning, including camera platforms and 3D printers.
  • Speed Control – Precise increments of movement allows for exceptional control of rotational speed for process automation and robotics.
  • Low Speed Torque – Typical DC motors do not have very much torque at low speeds, but a Stepper motor has maximum torque at low speeds, making them a great choice for applications requiring low speed with high precision.

Stepper Motor Applications

Stepper motors have been used in the following Heason Technology applications:


  • Medical Pick & Place – low-cost Cartesian style gantry positioning systems aimed at pick and place applications.
  • Four Axis Stepper Motor Precision Jaws – four independent jaw blades each positioned via a leadscrew driven by a 1.8° stepper motor integrated into a custom vacuum enclosure.
Heason Technology Medical Pick & Place Heason Technology Four Axis Stepper Motor Precision Jaws

Kollmorgen Stepper Motors

Kollmorgen’s advanced hybrid stepper motor technology incorporates large rotor diameters, large bearings, high-voltage insulation and tight air gap tolerances, as well as high-energy magnets and windings. The Kollmorgen PMX Series Stepper Motors provide a competitively priced and comprehensive solution for simple open-loop motion control.

Stepper Motors from Heason Technology

Stepper Motors are one of Heason’s most popular products. You can also browse our full range of motors on our website. 

For more information on our motors please contact us on +44 (0) 1403 792 300 or email Make sure you contact us to find the best option for you!



Article published on: 07/03/2019

Article last updated on: 07/03/2019