Description
Kollmorgen AKM42E-EKGNR
Technical Specifications
- Product Series: AKM (Synchronous Servo Motor)
- Frame Size: AKM4 (84mm flange diameter)
- Insulation Class: Class F (IEC 60085, UL 1446 Class F)
- Ambient Temperature: 5°C to +40°C at rated values (up to 1000m altitude)
- Relative Humidity: 95% non-condensing
- Surface Finish: Matte black polyester powder coating
- Shaft: Cylindrical shaft end A, k6 tolerance
- Protection Class: Standard IP54 (IP65 with optional shaft seal)
- Certifications: CE, UL, cUL
- Feedback Options: Resolver, SFD, EnDat, BiSS, incremental encoder, HIPERFACE
Functional Features
- High Torque Density: Optimized electromagnetic design delivers maximum torque in a compact frame
- Low Cogging Torque: Smooth rotation with minimal torque ripple for precision applications
- High Dynamic Response: Low rotor inertia enables fast acceleration and deceleration
- Plug-and-Play with AKD Drives: Instant recognition and auto-configuration with Kollmorgen AKD servo drives
- Smart Feedback Device (SFD): Simplified setup and tuning through intelligent feedback
- Comprehensive Protection: Built-in thermal protection with Class F insulation rated for 155°C winding temperature
- Multiple Feedback Options: Resolver, SFD, EnDat 2.1/2.2, BiSS, incremental encoder, HIPERFACE
- Optional Holding Brake: Spring-applied 24V DC brake for vertical axis applications
Application Scenarios
- CNC Machine Tools: Feed axis and spindle drive control
- Industrial Robotics: Joint actuator for robotic arms
- Packaging Machinery: High-speed positioning and indexing
- Medical Equipment: Precision motion for surgical and diagnostic devices
- Semiconductor Manufacturing: Wafer handling and precision positioning
- Printing and Converting: Registration and web tension control
Performance Parameters
- Continuous Torque Range: 1.95 to 3.56 Nm (depending on winding variant)
- Peak Torque: Up to 60 Nm for AKM4 frame
- Maximum Speed: Up to 6000 rpm
- Power Density: 0.37 Nm/√W
- Torque Loop Update Rate: 0.67μs (with AKD drive)
- Velocity Loop Update Rate: 62.5μs (with AKD drive)
Material Composition
High-quality permanent magnet rotor with rare-earth magnets, precision-wound stator with Class F insulation, aluminum housing with matte black polyester powder coating, precision bearings, and stainless steel shaft.




