PMX Stepper Motors


Kollmorgen’s PMX Series stepper motors are designed with ease–of–use, versatility and cost-effectiveness in mind. They provide high torque in a small package and
are offered in a wide range of standard sizes, constructions, windings and options.

These high-performance, brushless, maintenance-free stepper motors provide very precise, extremely cost-effective motion control, and inherently move in small, very precise, 0.9°, or 1.8° increments (400 or 200 steps/revolution). This stepping action is easily controlled without the need for complicated, expensive feedback devices.

The PMX series adds smaller 08, 11, and 14 frame sizes to  17, 23 and 34 frame sizes traditionally offered by Kollmorgen. For reliability in the field and a long service life they are built with high quality construction.

Motor ModelNEMA Frame, (mm)Number of length optionsTop-End Holding Torque [oz-in]Top-End Holding Torque [Nm]
PMX08 08 (20.2) 2 4.0 0.028
PMX11 11 (28.0) 3 16.7 0.118
PMX14 14 (35.2) 3 26.4 0.186
PMX17 17 (42.3) 5 107 0.756
PMX23 23 (56.4) 4 378 2.67
PMX34 34 (85.9) 4 1739 12.28


Kollmorgen PMX stepper motors offer:

  • High torque/pound – High quality performance in an affordable low-cost solution
  • Wide range of standard options including: bipolar and unipolar windings, integral connectors, shaft keyways and flats, rear shafts, IP65 sealing.
  • Options for 1.8 and 0.9 degree step angles (PMX17 and PMX23)
  • Easy to apply worldwide – CE, RoHS, REACH

Many custom options are available for the PMX Series motors. These include:

  • Shaft modifications – special shaft dimensions special features including: flats, splined shafts, helical gears, and acme leadscrews.
  • Winding modifications – special windings to match current, resistance, or inductance requirements.
  • Connectors and leadwire – special leadwire colours and customer-specified connectors.
  • Encoders – factory mounted incremental or absolute encoders with various line counts.
  • Gearboxes – factory mounted planetary and spur (offset) gearboxes.

Companion Products

P5000 Stepper Drive


Call +44 (0) 1327 307600 for more info
  Product Documents:
Product Specification
PMX Stepper Selection Guide
PMX Stepper Selection Guide

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