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The NEMA 8 (20mm) linear actuator stage is a miniature precision motion module that integrates a compact stepper motor with a lead screw and guide mechanism into a space-saving, ready-to-install package. With a 20mm × 20mm frame size, this micro linear actuator delivers reliable linear positioning for applications where space is extremely limited. Despite its small footprint, it provides precise motion control with positioning accuracy up to ±0.02mm.
Typical Applications:
Medical Devices · Laboratory Automation · Micro Robotics · 3D Printers · Laser Engraving · Optical Positioning · Semiconductor Equipment · Miniature CNC Machines
| 电机规格 Motor size | 相电压(V) Voltage/Phase | 相电流(A) Current/Phase | 相电阻(Ω) Resistance/Phase | 相电感(mH) Inductance/Phase | 电机线数 Number of lead wires | 转子惯量(g·cm²) Rotor inertia | 电机重量(g) Motor weight | 电机长度L(mm) Motor length |
| 28 | 2.5 | 0.5 | 5.1 | 1.5 | 4 | 2 | 50 | 30 |
| 28 | 6.3 | 0.5 | 12.5 | 11 | 4 | 3 | 80 | 42 |
| 丝杆直径(mm) Lead screw diameter | 导程(mm) Lead | 步长(mm) Step | 断电自锁力(N) Power off self-locking force |
| 3.5 | 0.3048 | 0.001524 | 80 |
| 3.5 | 1 | 0.005 | 40 |
| 3.5 | 2 | 0.01 | 10 |
| 3.5 | 4 | 0.02 | 1 |
| 3.5 | 8 | 0.04 | 0 |
| 行程S(mm) Stroke | 30 | 60 | 90 |
| 尺寸A(mm) Dimension A | 70 | 100 | 150 |
