Kollmorgen PMX Hybrid Stepper Motors Review: Specs, Price and Applications
Updated: 4 days ago
PMX is Kollmorgen’s configurable hybrid stepper family, ranging from compact frames to larger industrial sizes. Winding, shaft, feedback and environmental options make an exact part selection necessary. Shared PMX naming does not mean that every motor has the same step angle or protection rating.
Quick Verdict
A relevant family for pulse-controlled machinery where actual torque/speed duty and installation details can be matched to one motor/drive combination. Evaluate the total axis rather than selecting only the largest holding torque that fits the flange.
Kollmorgen PMX Hybrid Stepper Motors at a Glance
Specification | Details |
Frames | NEMA 8, 11, 14, 17, 23 and 34 in source scope |
Winding choices | Applicable bipolar / unipolar configurations |
Step-angle options | 1.8 / 0.9 degrees for identified PMX17 and PMX23 configurations |
Mechanical options | Shaft flats, keyways and rear shafts |
Feedback | Applicable factory encoder configurations |
Environment | IP65 available on identified configurations; not a family-wide default |
Price | Request a quote for exact motor and options |
Design and Engineering Assessment
A 0.9-degree step gives finer nominal subdivision than 1.8 degrees, while loaded accuracy also depends on motor/drive behavior and mechanics. Neither angle is a substitute for a process-point acceptance requirement.
Winding resistance and inductance influence current development and useful speed. Confirm the driver wiring and current convention rather than copying settings from a similarly sized PMX motor.
Custom shafts, gearboxes or encoders change the delivered assembly. A matching NEMA frame does not prove coupling fit, cable compatibility or identical reflected inertia.
Motor and Drive Selection
Use one selected torque/speed curve with the actual supply, acceleration and repeated duty. Include holding time and temperature in the thermal assessment.
Confirm shaft loads and mounting from the drawing. For a geared option, use the transmission’s own output and bearing limits rather than multiplying motor torque without qualification.
Verification and Service
If feedback is added, specify the interface and intended controller function. An encoder option does not itself establish a complete closed-loop system.
Measure loaded starts, reversals, low-speed smoothness and warm-cycle settling. Save the exact winding, settings and mechanical identity for spare-unit replacement.
Applications and Selection
Configured OEM stepper axes with a defined motor, drive and required feedback/protection scope.
For Kollmorgen PMX Hybrid Stepper Motors, define the actual machine duty before selecting an ordering configuration. Include the required operating point, available installation space, environment and control interfaces. The specification table describes the product or family; the surrounding machine determines which of those features matters for the intended job.
Price and Value
Price: Request a quote for the exact configuration. Compare the product, compatible control equipment, required mechanical parts, cabling and commissioning as one installed system. A component price alone does not represent the cost of a working automation axis.
Evaluate an alternative against the same duty and acceptance criteria. Match the continuous operating requirement first, then compare transient capability, feedback, mechanical fit and support. This avoids choosing between superficially similar products whose ratings describe different operating conditions.
Pros and Cons
Advantages
Broad frame and winding selection
Shaft, encoder and protection options
Configured OEM customization path
Limitations
Options are not universal across the family
Holding torque and step angle do not establish loaded accuracy
Drive and mechanical compatibility need exact selection
Who Should Consider Kollmorgen PMX Hybrid Stepper Motors?
Consider Kollmorgen PMX Hybrid Stepper Motors for configured OEM stepper axes with a defined motor, drive and required feedback/protection scope. Establish the required operating point and installation interfaces before choosing the configuration, and use a representative loaded cycle as the acceptance basis.
Kollmorgen PMX Hybrid Stepper Motors FAQ
Does every PMX have a 0.9-degree step?
No. Verify the exact frame/configuration; the source identifies that option for PMX17 and PMX23.
Are all PMX motors IP65?
No. Confirm the selected environmental version.
Can the same drive setting be copied between windings?
Not automatically. Match actual current and winding data.
Does NEMA size prove coupling compatibility?
No. Check shaft dimensions and the complete drawing.
Is feedback always included?
No. It is an applicable configuration option.
Does a finer full step guarantee better process accuracy?
No. The actual drive/load/mechanism still determines the result.
What belongs in a gearbox selection?
Ratio, efficiency, duty, output support and mechanical limits.
How should PMX be accepted?
Use loaded starts, warm cycles, reversals and actual process-point measurements.
Prices are indicative and may change. Confirm the final configuration, commercial terms and delivery schedule before ordering.
