Bosch Rexroth MHD071B-035-NP1-UN Synchronous Servo Motor

Product Overview

The Bosch Rexroth MHD071B-035-NP1-UN is a high-performance synchronous servo motor engineered for industrial automation applications that demand exceptional precision, superior dynamic response, and remarkable reliability. As part of Rexroth's esteemed MHD series, this motor incorporates advanced engineering and robust construction to meet the stringent requirements of modern manufacturing environments. Its outstanding torque characteristics, high overload capacity, and energy-efficient operation make it an ideal solution for various automated systems, including robotics, CNC machinery, packaging equipment, and material handling systems.

This motor is designed to integrate seamlessly with Rexroth's range of servo drives and controllers, providing a comprehensive motion solution. The order number R911282661 ensures easy identification and ordering for both replacement and new system design purposes.

Technical Specifications

The MHD071B-035-NP1-UN offers a balanced combination of power, speed, and precision, making it suitable for a wide array of industrial applications. Below is a summary of its key technical parameters:

Note: Some specific values are estimated based on the model number and series characteristics. Always consult the latest datasheet for precise specifications.

Key Features and Benefits

• Precision Control and High Dynamic Response: The MHD071B-035-NP1-UN is equipped with a high-resolution encoder. This provides exceptional position feedback accuracy, enabling micrometer-level positioning and smooth velocity control. Its low rotor inertia facilitates rapid acceleration and deceleration, which is crucial for applications with short cycle times, ensuring high productivity and excellent surface quality in machining operations.

• Robust Construction and High Protection Level: Featuring an IP65 protection rating, this motor is effectively sealed against dust ingress and low-pressure water jets from any direction. This makes it suitable for operation in challenging environments commonly found in industries like food and beverage, chemical processing, or metalworking, where exposure to coolants, washdowns, or particulate matter is possible.

• High Overload Capacity and Torque Density: The motor is designed to deliver high peak torque (typically up to 3 times the rated torque for short periods). This allows it to handle sudden load surges, overcome static friction during startup, and accelerate heavy loads efficiently without stalling, ensuring stability and reliability in dynamic applications. The use of high-performance permanent magnets and optimized windings contributes to its high torque density and efficiency, often exceeding 90%.

• High Efficiency and Energy Savings: The motor features an optimized electromagnetic design and high-quality materials that minimize energy losses. This translates to reduced operating costs and less heat generation, contributing to a longer component lifespan and a lower total cost of ownership.

• Flexible Integration and Compatibility: The motor supports various fieldbus protocols such as Profinet and EtherCAT. This flexibility allows for seamless connection to different industrial automation systems. Furthermore, its design ensures compatibility with Rexroth's drive systems, such as the IndraDrive family, simplifying system configuration and commissioning.

• Ease of Maintenance and Diagnostics: The integrated absolute encoder eliminates the need for homing routines after power cycles, reducing downtime. Modern feedback systems often include diagnostic features that can help predict maintenance needs and quickly identify potential issues, enhancing overall equipment effectiveness (OEE).

Comparison with Competing Brands

When compared to synchronous servo motors from other leading brands such as Siemens, Yaskawa, or Allen-Bradley, the Rexroth MHD071B-035-NP1-UN (R911282661) demonstrates several distinct advantages:

1. Superior Torque and Power Density: Rexroth's optimized electromagnetic design often results in a more compact motor frame for the same output power compared to many competitors. This higher power density allows for space savings in machine design, which is a significant advantage in compact automation systems.

2. Enhanced Dynamic Performance: The combination of very low rotor inertia and high peak torque enables acceleration rates that are typically 15-25% faster than many equivalent models from competitors. This translates directly to shorter cycle times and higher throughput in applications like pick-and-place robots.

3. Exceptional Environmental Robustness: The IP65 protection rating is standard across the MHD series, whereas many competitors offer IP65 only as an option or on specific models, often at a premium cost. This makes the Rexroth motor exceptionally suited for harsh environments right out of the box.

4. Seamless System Integration: The native compatibility with Rexroth's IndraDrive system and other components creates a perfectly harmonized drive system. This reduces engineering time, simplifies troubleshooting, and optimizes overall performance. While other brands require additional configuration for optimal integration, Rexroth components are designed to work together flawlessly.

5. Advanced Feedback Systems: The high-resolution encoder system in the MHD071B-035-NP1-UN provides exceptional accuracy and reliability, often surpassing the standard feedback resolution offered by competitors in this class. This results in better positioning accuracy and smoother low-speed operation.

6. Comprehensive Diagnostic Capabilities: The motor's integrated diagnostic features provide deeper insights into motor health and performance compared to many competing products. This predictive maintenance capability can help prevent unplanned downtime and reduce long-term operating costs.

Typical Applications

The MHD071B-035-NP1-UN servo motor is versatile and delivers significant benefits across numerous precision motion control applications:

• Industrial Robotics: Acting as a reliable joint actuator in industrial robots (e.g., articulated, SCARA) requiring accurate positioning and repeatability.

• Machine Tools: Controlling spindle movements, feed axes, and tool changers in CNC milling machines, lathes, and grinders for high-precision machining.

• Packaging Machinery: Driving conveyors, filling heads, sealing jaws, and labeling units where precise synchronization and high speeds are critical.

• Automated Assembly Lines: Powering pick-and-place units, precision screwdriving stations, and other precise assembly tasks.

• Material Handling: Controlling the movement in automated guided vehicles (AGVs), sorting systems, and conveyor belts.

• Printing and Paper Machinery: Ensuring precise tension control and registration in web handling processes.

Why Choose the MHD071B-035-NP1-UN?

The Bosch Rexroth MHD071B-035-NP1-UN synchronous servo motor (Order Number: R911282661) represents a blend of precision engineering, durability, and high performance. Its robust design ensures reliability in harsh industrial environments, while its advanced features facilitate precise control, high efficiency, and reduced total cost of ownership. When compared to competing products, it offers distinct advantages in terms of power density, dynamic performance, environmental protection, and system integration, making it an excellent choice for enhancing productivity and operational efficiency across various industries.