Precision Motion Product
External Drive PM Linear Stepper Motor
External drive PM linear stepper motor featuring direct-drive precision. High torque-to-size ratio and customizable traveling nuts for light industrial automation, robotics, and medical devices. Designed for flexible linear movement, our external drive PM linear stepper...
Include your application, load, speed, travel, accuracy, quantity and installation requirements.
Technical Information
Product Details
External drive PM linear stepper motor featuring direct-drive precision. High torque-to-size ratio and customizable traveling nuts for light industrial automation, robotics, and medical devices.
Designed for flexible linear movement, our external drive PM linear stepper motor pairs a permanent magnet stepper motor with an extended, precision-machined lead screw shaft. In this configuration, the screw is fixed to the rotor and rotates with the motor, driving an external nut back and forth along the shaft.
Equipped with optional wear-resistant plastic or bronze external nuts, this external linear actuator provides direct-drive precision, long service life, and reliable linear motion for light industrial and medical applications.
Key Features & Advantages
-
Direct-Drive Integration: Eliminates shaft couplers to reduce mechanical backlash and dynamic axial runout.
-
Customizable Nut Designs: Available with cylindrical nuts, flanged nuts, and spring-loaded anti-backlash nut assemblies.
-
High Power Density: Compact permanent magnet design produces strong linear thrust in a space-saving construction.
-
Low Maintenance: Self-lubricating nut options ensure smooth, clean operation without frequent re-lubrication.
Technical Specifications
| Feature / Parameter | Standard Specification |
| Motor Type | Permanent Magnet (PM) Linear Actuator |
| Drive Architecture | External Drive (Rotating Screw, Traveling Nut) |
| Frame Outer Diameter | 20mm, 25mm, 35mm, 42mm, 57mm |
| Step Angle | 7.5° (48 steps/rev) / 15° (24 steps/rev) |
| Screw Material | SUS304 Stainless Steel |
| Nut Materials | POM (Polyoxymethylene), Bronze, Anti-Backlash Plastic |
| Max Axial Thrust | Up to 220 N |
| IP Rating | IP40 Standard |
Typical Applications
-
Light-Duty Gantry Pick-and-Place Arms & Micro-Robotics
-
Medical Reagent Mixing & Automated Fluid Control
-
Optical Shutter Mechanisms & Camera Stage Positioning
Engineering resources
Parameters, Drawings & Performance Data
Use order-specific technical documents for final selection. Published information should be checked against the required operating conditions and mechanical interface.
Technical parameters, drawings and performance data are confirmed against the selected model and operating conditions.
Request Technical DataBefore requesting a quote
Information Needed for Model Selection
- Application and motion type
- Load or required thrust / torque
- Speed, travel and acceleration
- Accuracy and repeatability target
- Duty cycle and operating environment
- Installation space and interface drawing
- Controller, drive and feedback requirements
- Quantity, destination and required documents
Product Support
Frequently Asked Questions
How can I request a quotation?
Send us the product model, quantity, application requirements, and destination. Our team will provide selection and quotation support.
Can you help with product selection?
Yes. Share your technical parameters and operating conditions, and our engineers will help identify a suitable solution.
Do you support international shipping?
Yes. Available shipping options and lead times are confirmed with each quotation based on the product and destination.