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Kollmorgen 6SM 37S-6.000

Product Brief:
High-dynamic-response, 3-phase brushless PM servo motor with Neodymium-Iron-Boron magnets. The “37S” denotes a small-frame, low-inertia variant; “-6.000” indicates 6000 rpm maximum mechanical speed.

Detailed content

Key Technical Specifications:
  • Rated Power:​ ~0.25 kW (at 6000 rpm)
  • Rated Torque (Mn):​ ~0.4 Nm (at 6000 rpm)
  • Stall Torque (M0):​ ~0.5 Nm
  • Rated Current (In):​ ~0.95 A RMS
  • Stall Current (I0):​ ~1.0 A RMS
  • Peak Current (I0max):​ ~4.0 A
  • Torque Constant (Kt):​ ~0.5 Nm/A
  • Voltage Constant (Ke):​ ~30 mV/min⁻¹
  • Nominal Supply Voltage:​ 400/460 VAC (star wound)
  • Max. Mechanical Speed:​ 6000 rpm
  • Pole Pairs:​ 3 (6 poles)
  • Resolver:​ 2-pole brushless resolver standard (optional hi-res encoder)
  • Insulation Class:​ F (155 °C per DIN 57530)
  • Protection:​ IP65 (with shaft seal)
  • Cooling:​ Natural convection
Features:
  • Low rotor inertia → excellent acceleration characteristics
  • Compact flange/footprint — easy drop-in replacement
  • Compatible with ServoStar CD / S300 / S600 / AKD families
  • Smooth operation, low cogging
Applications:​ High-speed spindle auxiliary axes, electronic component insertion, pick-place heads, small indexing tables, textile feeders.
Installation & Notes:
  • Align motor shaft precisely with load coupling to avoid side loads.
  • Check resolver phasing during first auto-commission with drive.
  • Keep ambient temperature below 40 °C for continuous duty at rated torque.

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