20 mm PM Stepper Linear Actuator
The 20 mm PM stepper linear actuator is a compact can stack linear actuator platform available in External, Non-Captive, and Kaptive configurations.
Designed for space-constrained OEM applications, this actuator supports multiple lead screw options, 7.5° and 15° step angles, screw end machining, Teflon coating, and length customization.
Motor Characteristics
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| Specification | 7.5° / 5V | 7.5° / 12V | 15° / 5V | 15° / 12V |
|---|---|---|---|---|
| Polarity | Bi-Polar | |||
| Linear Actuator Type | External, Non-Captive, Kaptive | |||
| Step Angle | 7.5° | 15° | ||
| Winding | 5V | 12V | 5V | 12V |
| Phase Current | 370 mA | 160 mA | 370 mA | 160 mA |
| Phase Resistance | 13.5 Ω | 74.5 Ω | 13.5 Ω | 76 Ω |
| Phase Inductance | 6.5 mH | 36 mH | 4 mH | 25 mH |
| Power Consumption | 3.4 W | |||
| Rotor Inertia | 1.05 gcm² | |||
| Insulation Class | B | |||
| Insulation Resistance | 100 MΩ | |||
| Mass | 35 g | |||
Available Lead Screw and Travel Per Step
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| Step Angle | Screw Lead mm | Screw Lead inch | Travel Per Step mm | Travel Per Step inch | Screw Lead Code |
|---|---|---|---|---|---|
| 7.5° | 0.3 | 0.0118 | 0.00625 | 0.00025 | AF |
| 7.5° | 0.6096 | 0.024 | 0.0127 | 0.0005 | AA |
| 7.5° | 1.0 | 0.03937 | 0.02083 | 0.00082 | AB |
| 7.5° | 1.2192 | 0.048 | 0.0254 | 0.001 | B |
| 7.5° | 2.0 | 0.07874 | 0.04167 | 0.00164 | G |
| 7.5° | 2.4384 | 0.096 | 0.0508 | 0.002 | J |
| 7.5° | 4.0 | 0.15748 | 0.0833 | 0.00328 | M |
| 15° | 0.3 | 0.0118 | 0.0125 | 0.00049 | AF |
| 15° | 0.6096 | 0.024 | 0.0254 | 0.001 | AA |
| 15° | 1.0 | 0.03937 | 0.0417 | 0.00164 | AB |
| 15° | 1.2192 | 0.048 | 0.0508 | 0.002 | B |
| 15° | 2.0 | 0.07874 | 0.0833 | 0.00328 | G |
| 15° | 2.4384 | 0.096 | 0.1016 | 0.004 | J |
| 15° | 4.0 | 0.15748 | 0.1667 | 0.00656 | M |
Dimensional Drawings
| Stroke X mm | Front Extension A | Total Extension B | Body Length C Max |
|---|---|---|---|
| 14 | 13.5±0.25 | 40.5 | 30.5 |
| 18 | 17.5±0.25 | 48.5 | 34.5 |
| 25 | 24.5±0.25 | 62.5 | 41.5 |
| 31 | 30.5±0.25 | 74.5 | 47.5 |
Speed Thrust Curves
Customization Options
Custom Stroke Lengths
Adjust travel range and stroke requirements to better match the application package and motion profile.
Screw End Machining
Modify screw ends for couplings, mounting, alignment, or application-specific mechanical interfaces.
Teflon Coated Lead Screws
Add coating to support greaseless screw and nut combinations, improve life, and enhance thrust performance.
Voltage & Winding Options
Select winding options around power, current, speed, and force requirements for your system.
Connector & Cable Options
Customize cable length, connector type, wire routing, or harness details for easier installation.
External, Non-Captive, or Kaptive
Choose the actuator configuration that best fits the load, available space, and guidance requirements.
Mounting Features
Review custom mounting or interface requirements for compact OEM equipment designs.
Application Support
Work with DINGS’ Motion USA to review force, speed, duty cycle, life, and integration requirements.
Downloads
External - E20PA
Kaptive - K20PA
Non-Captive - N20PA
Need help selecting or customizing a 20 mm PM actuator?
DINGS’ Motion USA can help evaluate actuator type, lead screw selection, travel per step, force requirements, wire options, and custom mechanical features for your application.