🔵 WOODWARD SMM40 — DC Permanent Magnet Motor 1765-825
Precision Low-Speed Permanent Magnet Actuator Motor
The SMM40 DC Permanent Magnet Motor 1765-825 is a high-reliability actuator motor engineered for precise control of industrial engines, generators, and mechanical drive systems. Designed for low-speed, high-torque applications, it is widely used to drive fuel racks, throttle linkages, and other control mechanisms where smooth, repeatable motion is required. Its permanent magnet design ensures consistent torque output and minimal electrical losses under continuous operation.
Built for harsh industrial environments, the SMM40 motor features robust mechanical construction, low-noise operation, and long service life. It integrates seamlessly with Woodward digital and analog control units, enabling accurate positioning, load response, and speed regulation.
📑 Technical Parameters (Datasheet-Style Table)
| Parameter | Specification |
|---|---|
| Model | SMM40 DC Permanent Magnet Motor |
| Part Number | 1765-825 |
| Motor Type | Permanent Magnet DC Motor |
| Rated Voltage | 24 VDC |
| Rated Speed | 10–20 RPM (depending on configuration) |
| Duty Cycle | Continuous |
| Torque Output | High-stability low-speed torque (application-dependent) |
| Shaft Type | Precision-machined output shaft |
| Rotation Direction | Configurable via polarity |
| Mounting | Standard industrial flange mounting |
| Mechanical Noise | Low-noise operation |
| Operating Temperature | –40 °C to +85 °C |
| Storage Temperature | –55 °C to +105 °C |
| Environmental Rating | Industrial-grade, vibration and dust resistant |
| Application | Actuator drives, fuel/throttle control, governor systems |
âš™ Functional Features
🟩 High-Precision Low-Speed Control
The motor delivers smooth, controlled motion at low speeds, making it ideal for fine adjustments in fuel, air, and throttle systems. Its low RPM allows accurate positioning without overshoot.
🟩 Permanent Magnet Performance
The PM rotor design provides consistent torque across operating cycles, improved efficiency, and minimal heat generation under continuous duty.
🟩 Mechanical Durability
Designed to withstand industrial vibration, long operational cycles, and frequent micro-adjustments. High-grade bearings and reinforced shafts extend service life.
🟩 Compatibility
Works seamlessly with Woodward digital controls (e.g., 828 DCU, 2301A controllers) and other actuator modules. Enables integration with feedback loops for closed-loop control in engine or generator applications.
🛠Installation & Operation Tips
- Mount on a rigid, vibration-resistant support structure to prevent misalignment.
- Ensure correct shaft coupling and alignment with the driven mechanism.
- Connect 24 VDC supply with proper polarity for intended rotation; reverse to change direction.
- Use shielded cabling if installed near high-voltage or high-current equipment.
- Perform initial calibration of motion range and verify actuator alignment during commissioning.
- Periodic inspection of shaft and bearings is recommended for heavy-duty installations.
For technical support and authorized parts, distributors include:
🔗 https://www.dcsplcsystem.com/
🔗 https://www.dcsplcsystem.com/woodward
📦 Recommended Similar Products
| Model | Description | Speed/Function | Application |
|---|---|---|---|
| SMM40 1766-523 | DC Permanent Magnet Motor | 15 RPM | Fuel/throttle actuator drive |
| 5484-877 PM Motor 24VDC 15 RPM | Low-speed PM motor | 15 RPM | Precision engine adjustment |
| 5484-875 PM Motor 24VDC 5 RPM | Ultra-low speed PM motor | 5 RPM | High-resolution actuator control |
| 8272-582 APM Motor Control | Motor control module | N/A | PM motor interface and control |
| 8404-009 ProAct Digital Plus Front Panel | Digital actuator interface | Configurable | Industrial engine and generator systems |


