Description
Product Overview
The SM25 Stepper Motor is a compact 12V DC stepper motor designed for applications requiring controlled step-by-step motion. With a 25mm motor body diameter, a 15° step angle and a two-phase drive system, it provides a practical solution for compact motion control equipment.
The motor features a four-wire connection, two-phase excitation and bipolar drive mode. Its compact structure and mounting design make it suitable for equipment with limited installation space.
Key Features
- Compact 25mm motor body design
- Rated voltage: 12V DC
- Step angle: 15° per step
- Two-phase excitation system
- Bipolar drive mode
- Pull-in torque: More than 60 gf·cm at 100 pps
- Pull-out torque: More than 90 gf·cm at 100 pps
- Two M3 mounting holes for installation
- Four-wire electrical connection
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SM25 |
| Rated Voltage | 12V DC |
| Current per Phase | 400mA/Phase |
| Coil Resistance | 20 ±7% Ω/Phase |
| Number of Phases | 2 |
| Step Angle | 15°/Step |
| Excitation Method | 2-Phase Excitation |
| Drive Mode | Bipolar Drive |
| Pull-in Torque | More than 60 gf·cm at 100 pps |
| Pull-out Torque | More than 90 gf·cm at 100 pps |
| Max. Response Frequency | More than 1100 pps |
| Max. Starting Frequency | More than 800 pps |
| Insulation Class | Class E |
| Insulation Strength | 100V AC for 1 second |
| Insulation Resistance | 100MΩ DC 500V |
| Operating Temperature | 0°C to +55°C |
Mechanical Dimensions
- Motor Body Diameter: Ø25mm
- Output Shaft Diameter: Ø2mm
- Shaft Diameter Tolerance: +0/-0.01mm
- Shaft Projection Dimension: 6.7 ±0.03mm
- Mounting Holes: 2-M3 × 0.5P
- Mounting Dimension: 38mm (drawing dimension)
- Cable Length: 60 ±5mm
Wiring Information
The SM25 motor uses a four-wire connection.
| Pin | Wire Color | Phase |
|---|---|---|
| 1 | Yellow | B |
| 2 | Red | B̅ |
| 3 | Black | A |
| 4 | Blue | A̅ |
Cable Specification: UL1571, AWG 28.
Connector: PHR-04 (White).
Customization and Inquiry
Looking for a compact stepper motor for your equipment? Contact Changzhou Xinghua Electric Co., Ltd. for more information about the SM25 Stepper Motor, technical specifications and product availability.
Please send us your application requirements so our team can help you evaluate the suitable motor solution.
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