Precision Motion Product
Non-Captive PM Linear Stepper Motor (Through-Shaft Actuator)
High-efficiency non-captive PM linear stepper motor with through-shaft design. Flexible stroke length and compact profile for medical automation, HVAC, and robotics. Request a quote today. The non-captive PM linear stepper motor utilizes an internal rotating...
Include your application, load, speed, travel, accuracy, quantity and installation requirements.
Technical Information
Product Details
High-efficiency non-captive PM linear stepper motor with through-shaft design. Flexible stroke length and compact profile for medical automation, HVAC, and robotics. Request a quote today.
The non-captive PM linear stepper motor utilizes an internal rotating nut embedded directly inside the motor rotor. The precision lead screw passes completely through the center of the motor shaft. When the screw is fixed to an external load that prevents rotation, the screw translates axially through the motor body.
This through-shaft permanent magnet linear actuator offers complete flexibility in travel stroke, as screw length is not limited by the motor housing size. It provides a compact, low-cost solution for versatile linear positioning across varied machinery footprints.
Key Features & Advantages
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Unlimited Travel Stroke: The screw passes through the motor body, enabling stroke lengths customized to your exact application needs.
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Streamlined Design: Eliminates bulky external couplings, motor mounts, and additional shaft support bearings.
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High Efficiency & Quiet Operation: Precision-molded internal nuts ensure smooth, quiet motion with low friction wear.
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Economical OEM Solution: Delivers excellent force-to-cost performance for high-volume automated manufacturing.
Technical Specifications
| Feature / Parameter | Standard Specification |
| Motor Type | Permanent Magnet (PM) Stepper Motor |
| Design Style | Non-Captive (Through-Shaft Design) |
| Frame Outer Diameter | 20mm, 25mm, 35mm, 42mm |
| Step Angle | 7.5° / 15° |
| Screw Diameter Options | 2mm, 3.5mm, 4.5mm, 6.35mm |
| Lead / Pitch Range | 0.5mm to 3.0mm per revolution |
| Axial Backlash | < 0.1 mm (Standard Nut) / < 0.02 mm (Anti-Backlash Nut) |
| Operating Temperature | -20°C to +50°C |
Typical Applications
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Automated Medical Laboratory Dispensers & Pipetting Stations
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HVAC Damper Actuators & Airflow Control Valves
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Automated Sorting Trays & Light-Duty Material Handling
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.