Overview
The Rexroth MKD090B-047-KP0-KN is a brushless digital AC synchronous servo motor from the MKD series, manufactured by Bosch Rexroth Indramat. This used, fully functional unit is engineered for precision motion control in industrial automation applications including packaging, food processing, printing, paper, and machine tools. The motor combines a compact frame size (090) with robust performance characteristics, making it suitable for demanding industrial environments where reliable torque delivery and position accuracy are critical.
Key Features
- Brushless digital AC synchronous design with resolver feedback and integrated multiturn absolute encoder
- Shaft with keyway per DIN 6885-1 and shaft sealing ring for reliable coupling
- No holding brake—designed for continuous motion applications
- Standard housing with terminal box connection (side B)
- High repeat frequency capability due to electronic commutation
- Fast startup and efficient data storage via integrated motor encoder unit
- Significant overload capacity for demanding duty cycles
Technical Specifications
The Rexroth MKD090B-047-KP0-KN meets the following performance parameters:
- Motor Size: 090 (frame size)
- Motor Length: B (B-length classification)
- Winding Code: 047
- Continuous Torque (at standstill): 12.0 Nm @ 3200 rpm characteristic speed
- Torque Constant: 1.05 Nm/A
- Voltage Constant: 91 V/1000 min-1
- Flange: 140 mm square flange
- Feedback: Resolver with integrated multiturn absolute encoder (>4096 revolutions)
- Weight: 14 kg (approximately 30.3 lbs)
- Holding Brake: Not included
- Shaft Design: Keyway with seal ring per DIN 6885-1
- Housing: Standard design with terminal connection box
- Ambient Temperature: 0–40 °C (recommended)
- Installation Altitude: <1000 m
Typical Applications
The MKD090B-047-KP0-KN servo motor is well-suited for:
- Packaging machinery and automation systems
- Food processing and packaging equipment
- Printing and paper handling machinery
- CNC machine tools and precision positioning
- Robotics and motion control systems
- Assembly line automation with high repeatability requirements
- Applications requiring smooth, continuous torque delivery over extended duty cycles
Compatibility & Replacements
Compatible With
- Bosch Rexroth Indramat digital servo drives and controllers
- MKD series motor families and accessories
- Standard industrial 140 mm flange-mount systems
- Resolver-based feedback control architectures
- Industrial automation systems supporting resolver and absolute encoder inputs
Replaces / Drop-In Replacement For
- MKD090B series motors with identical frame, length, and winding configuration
- OEM equipment originally specified with MKD090B-047 servo motors
- Legacy installations requiring 12.0 Nm continuous torque at 3200 rpm
Works With
- Bosch Rexroth Indramat servo drive systems (DKC, AKD, B&R AC500 series)
- Systems supporting resolver feedback with integrated encoder
- 140 mm flange-mount gearheads and mechanical couplers
- Industrial control systems operating 283–380 VAC (three-phase variant)
- Absolute position detection systems requiring 4096+ rotation multiturn encoding
