Rexroth MHD112C-024-PP0-BN MHD Series Synchronous Servo Motor for High-Performance Industrial Applications

Rexroth MHD112C-024-PP0-BN Synchronous Servo Motor
(Order Number: R911275739)

Overview

The Rexroth MHD112C-024-PP0-BN is a high-performance synchronous servo motor designed for demanding industrial applications. As part of Bosch Rexroth’s MHD series, this motor combines robust construction, precision control, and exceptional dynamic response. It is engineered to operate seamlessly with Rexroth’s digital drive controllers, making it an ideal choice for applications requiring high torque, accuracy, and reliability.

Key Features

• High Torque Density: Delivers continuous stall torque up to 48 Nm (100K winding overtemperature), making it suitable for heavy-duty applications.

• Advanced Cooling Options: Supports natural convection, surface cooling, and liquid cooling, allowing flexible integration into various thermal environments.

• Integrated Encoder System: Equipped with a digital servo feedback (HSF) encoder for precise position and speed control.

• Holding Brake: Includes an optional brake (22 Nm or 32 Nm holding torque) for safe operation in vertical axes or emergency stopping.

• High Overload Capability: Capable of handling peak currents up to 46.4 A, enabling short-term overloads without performance degradation.

• IP65 Protection: Fully enclosed design protects against dust and water jets, ensuring reliability in harsh environments.

• Compact and Modular Design: B5 flange mounting per DIN 42948 simplifies mechanical integration.

Technical Specifications

The MHD112C-024-PP0-BN is optimized for operation with a DC link voltage of 540 VDC. Below are its key technical parameters under natural convection cooling (100K winding overtemperature):

Design and Construction

The MHD112C-024-PP0-BN features a permanent magnet rotor with high-energy magnets, ensuring high efficiency and minimal losses. The stator windings are designed for optimal heat dissipation, allowing sustained operation under high loads. The motor includes a shaft sealing ring and is available with either a plain shaft or a keyway (DIN 6885-1). The housing is coated with a black prime coat (RAL 9005), providing corrosion resistance and a professional appearance.

The motor is balanced with a full feather key (if keyway option is selected), ensuring smooth operation at high speeds. The connectors for power and feedback are designed for easy cabling and can be oriented within a 270° range, facilitating flexible installation.

Application Areas

The MHD112C-024-PP0-BN is suitable for a wide range of industrial applications, including:

• Machine Tools: Spindle drives, feed axes, and CNC machinery.

• Printing and Paper Processing: High-precision web handling and printing units.

• Packaging Machinery: Rotary cutters, fillers, and labeling systems.

• Automation and Robotics: Joint drives, gantry systems, and material handling.

• Food and Beverage: Conveyors, mixers, and filling machines where hygiene and reliability are critical.

Cooling and Thermal Management

The motor supports multiple cooling methods:

• Natural Convection: Ideal for applications with moderate duty cycles.

• Surface Cooling: Enhanced heat dissipation through mounted cooling plates.

• Liquid Cooling: For high-duty cycles and continuous high-torque applications.

The thermal time constant of 60 minutes (natural convection) ensures stable operation even under varying load conditions.

Safety and Compliance

• CE Certified: Complies with European safety and EMC directives.

• UL/cUL Listed: Meets North American safety standards.

• Protection Class IP65: Suitable for use in dusty or wet environments.

• Insulation Class F: Withstands temperatures up to 155°C.

Ordering Information

The motor is identified by the order number R911275739 and the type code MHD112C-024-PP0-BN, which decodes as follows:

• MHD112: Motor series and frame size

• C: Motor length (C = 48 Nm continuous stall torque)

• 024: Winding code

• P: Shaft with keyway

• P: Holding brake (22 Nm or 32 Nm)

• 0: Output direction (left or right, depending on order)

• B: Housing for natural convection

• N: Standard reference (DIN/EN)

Conclusion

The Rexroth MHD112C-024-PP0-BN synchronous servo motor offers a powerful, reliable, and versatile solution for high-performance motion control applications. Its robust design, flexible cooling options, and precise feedback system make it an excellent choice for engineers seeking to optimize machine performance and productivity. With its comprehensive safety certifications and wide operating range, this motor is well-suited for integration into modern industrial systems.