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1103A Tianhui Building, Yeqin 1st Road, Longcheng Street, Shenzhen, Guangdong, China






This NEMA 17 external lead screw stepper motor features a 34 mm stack length and an 8 mm lead screw with a standard 200 mm length. Designed for compact linear motion systems, it delivers stable thrust at low current (0.4 A) and supports custom screw lengths for precision linear actuator applications.
This NEMA 17 external lead screw stepper motor integrates a precision stepper motor
with a factory-aligned external lead screw, forming a compact and reliable
stepper motor linear actuator. With a 34 mm motor stack and low operating current,
it is ideal for applications requiring smooth linear motion, accurate positioning,
and reduced system complexity.
| Parameter | Specification |
|---|---|
| Frame Size | NEMA 17 (42 × 42 mm) |
| Motor Stack Length | 34 mm |
| Step Angle | 1.8° ±5% |
| Number of Phases | 2 |
| Rated Current | 0.4 A |
| Phase Voltage | 12 VDC |
| Phase Resistance | 30 Ω ±10% |
| Phase Inductance | 37 mH ±20% |
| Holding Torque | 0.28 N·m |
| Insulation Class | Class B |
| Ambient Temperature | -20°C to +50°C |
| Motor Weight | Approx. 0.2 kg |
| Item | Details |
|---|---|
| Screw Type | External Lead Screw |
| Lead | 8 mm |
| Standard Length | 200 mm |
| Customization | Custom screw length available |
| Nut Material | POM |
| Microstep | Linear Resolution (mm/step) |
|---|---|
| Full Step | 0.04 |
| 1/2 Step | 0.02 |
| 1/8 Step | 0.005 |
| 1/16 Step | 0.0025 |
| Wire Color | Signal |
|---|---|
| Black | A+ |
| Green | A− |
| Red | B+ |
| Blue | B− |
This external lead screw motor is widely used in compact
stepper motor linear actuator systems such as laboratory instruments,
small CNC fixtures, medical devices, pick-and-place modules, and automation equipment
powered by stable linear power supplies.
Download the full specification sheet for detailed parameters, wiring guide, and performance curves.
This stepper motor belongs to our
Stepper Motor series, designed for industrial automation applications.
To better understand how lead screw systems work in linear motion applications,
the following technical articles provide in-depth guidance and design insights.
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