Kollmorgen AKM42E-EKGNR

Product Introduction
The AKM42E-EKGNR is a synchronous servo motor from the Kollmorgen AKM series. The “4” indicates AKM4 frame size (84mm diameter), “2” indicates the rotor length variant, “E” indicates the winding type (1000PPR digital encoder with commutation function), “K” indicates the feedback type, “G” indicates the mounting configuration, “N” indicates the shaft type

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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.