Bosch Rexroth MHD071B-035-NP0-UN Synchronous Servo Motor

Product Overview

The Bosch Rexroth MHD071B-035-NP0-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

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This motor is designed to integrate seamlessly with Rexroth's range of servo drives and controllers, providing a comprehensive motion solution. The order number R911279164 ensures easy identification and ordering for both replacement and new system design purposes.

Technical Specifications

The MHD071B-035-NP0-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:

Cooling Method	Force cooling		Fan-cooled for effective heat dissipation
Insulation Class	F		Suitable for temperatures up to 155°C
Feedback System	High-resolution encoder (e.g., 23-bit)		Precise position feedback

Rotor Inertia

Low

kg·m²

Enables high dynamic response

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 Application Advantages

• Precision Control and High Dynamic Response: The MHD071B-035-NP0-UN is equipped with a high-resolution encoder (e.g., 23-bit)

. 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

• . This is particularly beneficial in robotics for precise joint movement and in packaging machinery for accurate filling and sealing.

• 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. This robustness reduces downtime and maintenance costs in harsh conditions.

• 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 such as press automation

• and material handling. 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. This efficiency is valuable in continuous operation scenarios like assembly lines and conveyor systems.

• 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. This interoperability reduces engineering time and costs.

• 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). This proactive maintenance capability is crucial for minimizing unplanned stoppages in high-volume production environments.

Typical Applications and Their Advantages

The MHD071B-035-NP0-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

• . Its high dynamic response ensures precise movement path tracking, improving product quality and cycle times.

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

• . The motor's precision ensures superior surface finish and dimensional accuracy of machined parts.

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

• . The motor's accuracy reduces material waste and ensures package integrity.

• Automated Assembly Lines: Powering pick-and-place units, precision screwdriving stations, and other precise assembly tasks. Its reliability maintains consistent throughput and assembly quality.

• Material Handling: Controlling the movement in automated guided vehicles (AGVs), sorting systems, and conveyor belts. The motor's robustness ensures continuous operation in demanding environments.

• Press Automation and Stamping Lines: Providing precise control in punch presses and stamping machines

• . The high overload capacity handles the intense forces involved, improving efficiency and part consistency.

Why Choose the MHD071B-035-NP0-UN?

The Bosch Rexroth MHD071B-035-NP0-UN synchronous servo motor (Order Number: R911279164) 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. The motor's application advantages—spanning improved accuracy, dynamic response, energy savings, and easier integration—make it a powerful component for enhancing productivity and operational efficiency across various industries.