The Rexroth Indramat MKD041B-144-KP1-KS (Material Number R911295887) is a high-performance synchronous AC servo motor designed for demanding automation tasks. Part of the renowned MKD series, this permanent-magnet motor is engineered for high-speed precision and excellent dynamic response. The MKD041B-144-KP1-KS is a preferred choice for applications requiring high reliability and maintenance-free operation, featuring a brushless design and an integrated digital encoder system for absolute position feedback.
Product Parameters & Datasheet
The R911295887 is built for high-torque density and industrial-grade thermal management.
| Parameter | Specification Details |
| Model Number | MKD041B-144-KP1-KS |
| Material Number | R911295887 |
| Motor Size | 041 (Frame size 82mm) |
| Motor Length | B (Standard length) |
| Winding Code | 144 (Optimized for 6000 RPM) |
| Feedback System | K (Digital Integrated Encoder) |
| Shaft Design | P (Plain shaft with sealing ring) |
| Holding Brake | 1 (Integrated 24V DC Holding Brake) |
| Output Connection | KS (Plug-in connector, side output) |
| Insulation Class | F (According to DIN VDE 0530) |
| Protection Category | IP65 (Total dust/water jet protection) |
Technical Description
The Rexroth MKD041B utilizes high-coercivity rare-earth magnets to achieve a high power-to-weight ratio. The “144” winding is specifically tuned for high-speed operation, reaching up to 6000 RPM while maintaining stable torque characteristics. This motor is “maintenance-free” due to its brushless design and grease-lubricated bearings designed for the entire service life of the unit. The integrated digital encoder provides the drive controller with instantaneous position and speed data, enabling sub-millimeter precision in motion sequences. The “KS” connector configuration allows for rapid cable installation and prevents environmental ingress.
Country of Origin
This AC servo motor is designed and manufactured in Germany by Bosch Rexroth (Indramat), ensuring compliance with strict European CE and international UL/CSA safety standards.
Application Fields
The MKD041B-144-KP1-KS is a standard component in high-precision machinery:
- Packaging Machinery: High-speed labeling and form-fill-seal synchronized motion.
- Printing Industry: Precise tension control and register alignment in multi-color presses.
- Machine Tools: Feed drives for CNC milling and turning centers.
- Handling Systems: Pick-and-place robotics and automated palletizers.
- Food Processing: Reliable operation in wash-down environments (utilizing the IP65 rating).
Product Usage Instructions
- Mechanical Mounting: Secure the motor to the machine flange using the four mounting holes. Ensure the coupling is correctly aligned to prevent axial or radial loads beyond specified limits.
- Electrical Connection: Connect the power and feedback cables to the “KS” plugs. Ensure the connectors are fully threaded to maintain the IP65 environmental seal.
- Brake Operation: The integrated holding brake is an “electrically released” type. Apply 24V DC to release the brake before attempting to rotate the motor shaft.
- Drive Configuration: When using IndraDrive or DIAX controllers, the motor parameters are automatically uploaded via the digital encoder’s electronic nameplate (Data Memory).
- Thermal Management: Ensure the motor surface has adequate clearance for natural convection. If the motor operates at peak torque for extended periods, monitor the internal temperature sensor via the drive’s diagnostic interface.
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