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Kollmorgen AKM21C-ANB2R-00

Product Name:​ AKM2 Compact Brushless Servo Motor with Resolver and Holding Brake
Product Introduction:​ AKM21C-ANB2R-00 is a 58 mm flange motor with C-winding, 16-bit 2-pole resolver, 24 VDC spring-applied brake, smooth shaft, and rotatable M23 connectors.
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Detailed content

Technical Specification:
  • Frame:​ AKM2 (58 mm square, NEMA 23 class)
  • Stack:​ 1 (short)
  • Winding:​ C (320 VDC bus / 240 VAC class)
  • Rated Power:​ 0.32 kW (0.43 HP) @ 320 VDC bus
  • Rated Speed:​ 8000 RPM
  • Standstill Torque:​ 0.48 Nm
  • Rated Torque:​ 0.39 Nm
  • Peak Torque:​ 1.47 Nm
  • Standstill Current:​ 1.58 Arms
  • Peak Current:​ 4.65 Arms
  • Torque Constant:​ ≈0.30 Nm/A
  • Resistance:​ 8–10 Ω line-line
  • Inductance:​ 15–20 mH
  • Rotor Inertia:​ 1.1e-05 kg·m² (no brake)
  • Feedback:​ Resolver, 16-bit, 2-pole
  • Brake:​ 24 VDC fail-safe holding brake, ≈1.0 Nm
  • Shaft:​ 20 mm smooth (no key)
  • Connectors:​ 2× angled rotatable M23
  • Protection:​ IP65
  • Insulation:​ Class F
  • Weight:​ 1.5–2.0 kg with brake
Functional Characteristics:
  • Very low inertia, fast settle
  • Brake holds load on power loss
  • Resolver survives vibration/shock
  • Direct mate to AKD with autotune
Working Principle:​ PM synchronous motor + resolver feedback + external amplifier vector control.
Application Scenario:​ Small pick-and-place, lab automation, door/index axes, semiconductor prep.
Installation Requirement:​ Brake requires isolated 24 VDC, not from logic supply; shaft radial load ≤70 N.
Usage Note:​ “2R” denotes 2-pole resolver variant; “00” = standard factory config.

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