Description
This is high quality Nema 11 stepper motor linear actuator with 1.8 deg. step angle (200 steps/rev). Each phase draws current 0.67A at 3.8V voltage, allowing for a holding torque of 8.3 Oz-in. You can choose a external shaft type or a non-captive shaft type stepper linear actuator to meet your specific application requirements.
Stepper Motor Linear Actuator Specification
| Model Type | External Shaft | Non-Captive Shaft |
| 28H32-0674AST | 28H32-0674GTS | |
| Weight | 3 kg | |
| Length | 32 mm | |
| Screw Diameter | 8 mm (0.315 inch) | |
| Screw Lead | 8 mm/rev (0.315 inch/rev) | |
| Travel Per 1.8 Step | 0.04 mm/step (0.00157 inch/step) | |
| Phase | 2 phase | |
| Step Angle | 1.8° | |
| Rated Voltage | 3.8 V | |
| Rated Current | 0.67 A | |
| Resistance | 5.6 Ω | |
| Holding Torque | 8.3 Oz-in | |
| Number of Leads | 4 | |
| Rotor Inertia | 9 g-cm2 |
Stepper Motor Linear Actuator Dimension (Unit=mm)
1. Non-captive shaft style
L=32mm
2. External shaft style
L=32mm
Details
Tips: Basic principle of stepper motor linear actuator
The stepper motor linear actuator is meshed with a screw and nut, so as to prevent the relative rotation of the screw nut so that the screw will have axial movement. There are two ways to achieve this transformation. The first is to build a rotor with inner screw thread in the stepper motor so as to achieve the linear motion through the mesh of internal thread and the screw. The second is to use the screw as the output shaft of the motor. A linear motion is achieved by meshing the external drive nut and screw. It simplifies the design greatly so that precise linear motion can be carried out in many application areas without installing external mechanical linkage device.
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