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AKM™ is the name for a versatile permanent magnet motor

With 8 standard frame sizes plus 28 frame-stack length available and a comprehensive choice of voltage, feedback, braking and interfacing options, Kollmorgen AKM permanent magnet motors offer unprecedented flexibility and performance advantages - with more than 50,000 combinations offered across the range. Furthermore, thanks to its modular concept the AKM facilitates straightforward co-engineered modifications such as special windings, shafts, and mechanical/electrical interfacing to meet our customers' exact requirements. The high efficiency and low cogging characteristics of AKM permanent magnet motors ensure smooth dynamic performance with precise control and reduced energy for demanding motion applications across all areas of industry. This motor boasts exceptional torque-density characteristics, producing up to 47% more shaft power - allowing a reduction in motor and drive size as well as a more compact installation - with the potential for overall cost savings. The AKM permanent magnet motor perfectly suits the AKD, S300 and S700 servo drives and, for ease of commissioning, is plug-and-play matched with the AKD drive - eliminating the need for drive parameter set-up and servo loop tuning in most applications.


  • 8 frame sizes, 28 frame/stack combinations
  • Speeds up to 8,000 RPM
  • 75 VDC; 120, 240, 480 VAC windings
  • A wide variety of feedback devices, mountings and seals
  • Direct mate to most Kollmorgen servo drives
  • Windings are rated at 100°C rise over a 40°C ambient while using 155°C (class F) insulation materials
  • cURus, CE Compliant, UL Recognition
  • RoHS conform


  • Feedback options: (Resolver, Encoder with EnDat, Hiperface, BiSS or Drive CLiQ)
  • Seals for improved environmental protection
  • Shaft ends closed or open keyway, flat, smooth
  • Dual or single Intercontec connectors, straight or rotatable
  • 24 VDC fail-safe brakes
  • IP67 washdown versions with food-grade greases and finishes
  • Also available with brake


  • Unprecedented choice and flexibility from a wide range of standard products and co-engineered modifications for an exact fit to your design requirements
  • Best-in-class performance, with industry-leading power density
  • Exceptionally low cogging and low harmonic distortion to ensure smooth performance
  • Easy to commission and use, with plug-and-play motor recognition and full-frequency autotuning on AKD™ Series servo drives

AKM with Drive CliQ feedback option:

  • Operation on Siemens Sinumerik Solution Line
  • Available for AKM4, 5, 6, 7 as standard
  • High performance 24Bit encoder
  • Single turn and multi turn versions
  • SIL 2 / Performance level d
  • Customized solutions possible