Rexroth MHD071B-061-NP1-UN Synchronous Servo Motor Product Introduction
Overview
The Rexroth MHD071B-061-NP1-UN (Order Code: R911279155) is a high-performance synchronous servo motor designed for precision industrial applications. Engineered with advanced magnetic technology and robust construction, this motor delivers exceptional torque density, dynamic response, and energy efficiency. It is ideal for demanding scenarios such as machine tools, printing systems, packaging machinery, and automation solutions where precise motion control is critical.
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Model | MHD071B-061-NP1-UN | - |
| Rated Power | 1.0 kW (Continuous) | kW |
| Rated Speed | 5,000 rpm | min⁻¹ |
| Rated Torque | 1.6 Nm (Continuous) | Nm |
| Peak Torque | 4.8 Nm (Max. 3 seconds) | Nm |
| Rated Voltage | 359 V (AC) | V |
| Rated Current | 1.7 A (Continuous) | A |
| Peak Current | 23.4 A | A |
| Torque Constant | 0.76 Nm/A (20°C) | Nm/A |
| Winding Resistance | 5.2 Ω (20°C) | Ω |
| Protection Class | IP65 | - |
| Weight | Approx. 8.5 kg | kg |
| Cooling Method | Natural Convection | - |
| Frame Size | B5 (EN 60034-7) | - |
| Operating Temperature | -20°C to +80°C | °C |
Key Features
- High Torque Density: Delivers 1.6 Nm continuous torque with a compact design, enabling space-saving integration.
- Dynamic Response: Peak torque of 4.8 Nm ensures rapid acceleration and deceleration for high-speed applications.
- Precision Control: Low cogging torque and high positional accuracy for tasks requiring micro-adjustments.
- Environmental Robustness: IP65 rating ensures resistance to dust and water jets, suitable for harsh industrial environments.
- Energy Efficiency: Optimized winding design reduces power losses, lowering operational costs.
Application Areas
- CNC Machine Tools: Spindle drives and feed axes.
- Printing & Packaging: Web tension control and label dispensing.
- Robotics: Joint actuators in collaborative robots.
- Material Handling: Conveyor systems and pick-and-place units.
- Food Processing: Hygenic environments requiring washdown capabilities.
Selection Guide for Buyers
1. Determine Torque & Speed Requirements
- Continuous Torque: Calculate the minimum torque required for your application at rated speed (5,000 rpm).
- Peak Torque: Account for transient loads (e.g., startup, braking). The MHD071B-061-NP1-UN supports up to 4.8 Nm for short durations.
- Speed Range: Verify if the motor’s 5,000 rpm rating aligns with your system’s operational speed.
2. Environmental Compatibility
- Temperature: Ensure ambient temperature stays within -20°C to +80°C. Derate torque if temperatures exceed 40°C (refer to Rexroth’s derating curves).
- Protection: IP65 rating suits dusty or wet environments. For underwater use, consider additional sealing.
- Altitude: Derate performance by 2% per 100 m above 1,000 m sea level.
3. Mechanical Integration
- Mounting: Use B5 flange mounting for direct coupling to drives.
- Shaft Compatibility: Confirm the motor’s shaft diameter (typically 22 mm) matches your coupling or gearbox.
4. Electrical Considerations
- Voltage Supply: Ensure compatibility with 359 V AC supply. For lower voltages, consult Rexroth for alternative windings.
- Current Capacity: Size drives and cables to handle 23.4 A peak current.
5. Performance Optimization
- Cooling: Natural convection suffices for most applications. For continuous high-load use, consider forced-air cooling.
- Feedback Systems: Pair with Rexroth encoders (e.g., IndraEnc) for closed-loop control.
Ordering Information
- Model: MHD071B-061-NP1-UN
- Order Code: R911279155
- Accessories:
- Brake option (if required)
- Encoder cables (e.g., R911278901)
- Mounting kits (B5 flange adapters)
Conclusion
The Rexroth MHD071B-061-NP1-UN offers a blend of precision, durability, and efficiency for industrial automation. By evaluating torque, speed, environmental, and mechanical requirements, buyers can confidently select this motor for applications demanding high dynamic performance.
