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Kollmorgen AKM31H-ASSS2-02

Product Introduction:
The AKM31H-ASSS2-02 belongs to Kollmorgen’s AKM family of permanent-magnet synchronous servo motors. It features a size-31 (70×70 mm) IEC flange, “H” winding for high-speed operation, integral resolver feedback, and a smooth or light keyway shaft depending on sub-option. Designed for direct mating with AKD, S200/S300/S600 drive families.
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Detailed content

Performance Parameters:
  • Rated Power: 0.61 kW (0.82 HP) @ 160 VDC bus; 0.25 kW @ 75 VDC bus
  • Stall Torque (continuous): 1.23 Nm (10.8 lb-in)
  • Rated Torque: approx. 0.97 Nm
  • Peak Torque: approx. 4.06 Nm
  • Max Speed: 6000 rpm @ 160 VDC bus; 2000 rpm @ 75 VDC bus
  • Rated Current: 5.85 Arms (at stall, 100°C winding rise)
  • Winding Resistance: approx. 1.29 Ω
  • Rotor Inertia: approx. 3.30 × 10⁻⁵ kg·m² (0.33 kg·cm²)
  • Max Bus Voltage: 160 VDC (winding type H); 320 VDC max for larger frames
Construction & Materials:
  • Frame: Aluminum housing, IEC 70 mm square flange, tolerance class N
  • Shaft: Steel (typically 14 mm / 0.55 in dia.), plain or with shallow keyway per -SSS2- option
  • Magnet: Neodymium-Iron-Boron (NdFeB) rare-earth permanent magnet rotor
  • Insulation Class: F (155°C), windings rated at 100°C rise over 40°C ambient
  • Connector: 2 × M23 (or Intercontec-style) connectors, angled or straight per config
  • Seals: Optional shaft seal for IP65/IP67 protection against dust and water spray
Feedback Device:​ Integral resolver (single-speed or multi-speed depending on exact -SSS2- decode); compatible with AKD resolver interface.
Protection & Certification:​ IP65 (with seal option), cURus, CE, RoHS compliant per AKM series
Typical Applications:​ Packaging machines, pick-and-place robots, semiconductor handlers, printing equipment, general automation requiring compact high-torque density.
Installation Notes:
  • Mount via 4 × M6 bolts on 85 mm PCD flange.
  • Ensure motor grounding via PE terminal in connector.
  • Align coupling carefully to avoid side-load on bearing.
  • Do not exceed 100°C winding temperature; use drive thermal monitoring if available.

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