Rexroth MHD112C-024-PG3-BN Synchronous Motor Multiturn Absolute Encoder and

Product Specification

Bosch Rexroth MHD112C-024-PG3-BN Synchronous Servo Motor

Order Number: R911282862

Overview

The Bosch Rexroth MHD112C-024-PG3-BN is a high-performance synchronous servo motor designed for precision motion control in industrial automation. As part of the MHD series, this motor combines advanced technology, robust construction, and exceptional dynamic response, making it ideal for applications demanding accuracy, reliability, and efficiency. With its integrated multiturn absolute encoder and compatibility with Rexroth's digital drive systems, the MHD112C-024-PG3-BN ensures seamless integration and optimized performance in complex automation environments.

Key Features

1. High Precision and Resolution

   • The motor features a multiturn absolute encoder (PG3 variant) with a resolution of 4,194,304 bits per revolution, providing exceptional positional accuracy without requiring homing after power cycles. This eliminates downtime and enhances operational efficiency in continuous production environments.

2. Robust Design and Protection

   • With an IP65 protection rating, the motor is resistant to dust, water jets, and harsh industrial conditions. Its housing is coated with a black primer (RAL 9005) for corrosion resistance, and optional sealing air connections further enhance protection in environments with coolants or oils.

3. High Dynamic Performance

   • The motor delivers high torque density and low rotor inertia, enabling rapid acceleration and deceleration. It supports peak torque overload (up to 3x rated torque), making it suitable for applications with frequent start-stop cycles or sudden load changes.

4. Thermal Management

   • Efficient cooling options include natural convection (standard) and forced air cooling (via optional blower). For high-duty cycles, liquid cooling can be implemented to maintain optimal temperature levels and prevent overheating.

5. Integration and Compatibility

   • The motor seamlessly integrates with Rexroth's IndraDrive series controllers8. Its encoder stores motor parameters (e.g., type code, control loop data), allowing for automatic configuration and reducing commissioning time. Support for industrial protocols like EtherCAT, PROFINET, and Ethernet/IP ensures interoperability with existing automation systems.

6. Safety and Compliance

   • The motor meets CE and UL standards (UL file number E163211) and can be equipped with an optional holding brake for safety-critical applications (e.g., vertical axes). Its design complies with international directives for machinery safety and EMC.

Technical Specifications

Design and Construction

• Frame and Mounting: The motor adopts a B05 flange design (per DIN 42950), supporting mounting positions IM B5, IM V1, and IM V3. The output shaft is balanced for smooth operation and can be configured as a plain shaft or with a featherkey (DIN 6885) for positive torque transmission.

• Encoder System: The absolute encoder provides position retention over 4096 revolutions, ensuring uninterrupted operation during power loss. The encoder's data memory stores motor parameters, enabling plug-and-play integration with Rexroth drives.

• Connectors: Power and feedback connectors are designed for 270-degree rotation, allowing flexible cable routing. Optional angular connectors simplify installation in space-constrained applications.

Application Areas

The MHD112C-024-PG3-BN is ideal for high-precision industries:

1. Robotics: Provides precise motion control for articulated arms, grippers, and automated guided vehicles (AGVs).

2. Machine Tools: Ensures accuracy in CNC machining centers, lathes, and grinding machines.

3. Packaging Machinery: Supports high-speed filling, labeling, and wrapping operations with synchronized motion.

4. Automated Production Lines: Enables rapid positioning and synchronization in assembly and testing systems.

Integration and Maintenance

• Controller Compatibility: Works with Rexroth IndraDrive systems (e.g., HDC, HDS series) for optimized performance. The drive auto-configures motor parameters via the encoder interface.

• Maintenance: Designed for 30,000 hours of operational life under rated conditions. Regular maintenance includes checking shaft seals, cleaning cooling fins, and verifying connector tightness.

• Cooling Options: For extreme loads, liquid cooling kits are available. The motor’s coolant connections use R1/8" threads for easy integration.

Ordering Information

The motor can be ordered with optional accessories:

• Holding Brake: Electrically released brake for safety positioning.

• Blower Unit: LEMD-series blower for enhanced surface cooling.

• Sealing Air Kit: Protects against invasive fluids in aggressive environments.

• Liquid Cooling: Components for high-duty cycle applications.

Why Choose the MHD112C-024-PG3-BN?

This motor stands out due to its:

• Absolute Encoder Technology: Eliminates homing routines and ensures position accuracy.

• Ruggedness: IP65 protection and robust construction for harsh environments.

• Energy Efficiency: Optimized electromagnetic design reduces power consumption.

• Global Support: Backed by Bosch Rexroth’s worldwide service network.

Conclusion

The Bosch Rexroth MHD112C-024-PG3-BN synchronous servo motor is a reliable, high-precision solution for advanced automation systems. Its combination of absolute feedback, robust design, and seamless integration makes it a top choice for industries seeking to enhance productivity and accuracy.