Overview
The Rexroth MKD090B-047-KP0-KN is a permanent magnet synchronous servo motor engineered by Bosch Rexroth Indramat for high-precision motion control in demanding industrial applications. Part of the MKD Synchronous Motors series, it features a shaft with keyway and resolver feedback with integrated encoder, delivering 12.0 Nm continuous torque at standstill at 3200 rpm. This servo-grade motor is commonly deployed in CNC machine tools, robotics, packaging equipment, and precision indexing systems where repeatable positioning and smooth speed regulation are critical.
Key Features
- Continuous Torque: 12.0 Nm at standstill at 3200 rpm
- Feedback System: Integrated multiturn absolute encoder and resolver feedback motor encoder
- Electrical Ratings: 351V nominal voltage with 8.4A rated current and 4.8kW input power consumption under full load
- Motor Constants: Torque constant of 1.05 Nm/A and voltage constant of 91 V/1000min⁻¹
- Shaft Design: Shaft with key per DIN 6885-1 with shaft sealing ring
- Housing: Standard housing with connection box and no holding brake
Technical Specifications
- Motor Size: 090 (B length category)
- Winding Code: 047
- Continuous Torque at Standstill: 12.0 Nm
- Rated Voltage: 351V AC
- Rated Current: 8.4A
- Power Input: 4.8 kW
- Peak Current Capacity: 59.4A
- Characteristic Speed: 3200 rpm
- Torque Constant (Kt): 1.05 Nm/A
- Voltage Constant (Ke): 91 V/1000 rpm
- Winding Resistance (20°C): 1.2 Ω
- Winding Inductance: 10.1 mH
- Pole Pairs: 4
- Flange Type: DIN 42948 (140 mm)
- Feedback: Resolver with integrated absolute encoder
- Holding Brake: None
- Terminal Box Position: Side B
- Cooling Method: Natural convection
Typical Applications
Ideal for CNC machines, robotics, and precision indexing tables, the MKD090B-047-KP0-KN is suited for applications requiring repeatable accuracy, fast dynamic response, and continuous-duty operation. This motor series supports cost-effective automation in food processing, paper, printing, and machine tools industries. The integrated absolute encoder allows fast commissioning without homing cycles, reducing startup time in production changeovers.
Compatibility & Replacements
Compatible With
- Bosch Rexroth Indramat DKC, HCS, and TLC digital drive controllers
- SERCOS interface and EtherCAT capable controllers
- Standard 350V/400V three-phase AC servo drive systems
- DIN 42948 flange-mount mechanical interfaces
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The -KP0-KN variant is distinct from -GP0-KN and -KG0-KN encoderconfigurations; direct substitution should be confirmed against motor nameplate and controller firmware compatibility.
Works With
- Bosch Rexroth IndraMotion MTX and CNC control systems
- Resolver-based closed-loop servo drive systems
- AC synchronous motor drives with 3-phase 351V capability
- Absolute encoder communication protocols (CANopen, PROFIBUS where controller-equipped)
