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AC Synchronous Servo Motors – AKM™ Series

Kollmorgen AKM™ servo motors give you unprecedented choice and flexibility, with more than 500,000 standard products and practically unlimited co-engineered modifications. Selecting the right-fit motor—optimized for your specific application requirements—has never been easier.

Product available worldwide
AKM Family_l
Industry 4.0 Ready



  • 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


  • Feedback devices: resolver, SFD, incremental and sine encoders
  • 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


  • 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


Stack Length 1,2,3 1,2,3,4 1,2,3 1,2,3,4 1,2,3,4 2,3,4,5 2,3,4 2,3,4
Windings B,C,D,E C,D,E,F,G C,D,E,H C,E,G,H,J,K E,G,K,L,M,N G,K,L,M,N,P K,L,M,P T
Max BUS (VDC) 320 640 640 640 640 640 640 640
Max Stall Tc
Nm (lb-in)
Max Tp
Nm (lb-in)
Max Rated N 8000 8000 7000 6000 6000 6000 3500 3000
Max Rated Power
@ Max BUS
kW (Hp)

Design Tools

Get Started

Count on Kollmorgen support to help you design and build a successful machine and keep it reliably productive, anywhere in the world. Our co-engineering experts will work with you to tailor a perfect-fit solution for your motion requirements.

Talk to a motion expert
Title Language(s) Date Size
pdfAKD2G, AKD Accessories Guide Europe EN (REV 11-2019) English 09 Dec 2019 6.67 MB Copy URL
pdfAKD2G, AKD and S700 Accessories Guide North America EN (REV J) English 09 Dec 2019 5.35 MB Copy URL
pdfAKM Instruction Manual EN DE IT ES FR RU (REV 10/2019) English, French, German, Italian, Russian, Spanish 25 Oct 2019 5.87 MB Copy URL
pdfAKM Part Number Scheme and Connectivity English 27 May 2020 1.07 MB Copy URL
pdfAKM Transport Instruction Manual EN (REV 12-2010) English 01 Dec 2010 956.86 KB Copy URL
Title Language(s) Date Size
pdfAKM Servomotor EU Declaration of Conformity EN English 30 Jul 2019 75.9 KB Copy URL
pdfAKM Servomotor EU Declaration of Conformity US EN English 01 Apr 2016 176.25 KB Copy URL
pdfApprovals and Certifications English, German, Russian 04 May 2017 2.66 MB Copy URL
pdfEAC Certification for Motors English, Russian 03 Jul 2017 3.58 MB Copy URL
Kollmorgen Servo & Stepper Motor Online UL Certification English 01 Feb 2017 Copy URL
pdfRoHS General Declaration English, German 30 Sep 2015 44.37 KB Copy URL
Application Notes
Title Language(s) Date Size
pdfA Simplified Machine Design Approach for Optimal Servomotor Control English 05 Feb 2015 522.96 KB Copy URL
pdfDBL Motor to AKM Mounting Cross Reference English 10 Aug 2017 335.1 KB Copy URL
pdfServo Motor Phasing with Hall Commutation English 05 Feb 2015 524.36 KB Copy URL
pdfServomotor Parameters and their Proper Conversions for Servo Drive Utilization and Comparison English 05 Feb 2015 656.98 KB Copy URL
Title Language(s) Date Size
Kollmorgen 2G Cable Guide English 13 Mar 2019 Copy URL
Title Language(s) Date Size
Kollmorgen 2G Cable Guide English 14 Mar 2019 21.67 MB Copy URL
Kollmorgen 2G Cable Guide (Interactive) English 15 Mar 2019 Copy URL
Kollmorgen AKM Servomotor Selection Guide English 04 Jan 2018 9.83 MB Copy URL
Kollmorgen AKM Servomotor Selection Guide S4W Italy English 24 Oct 2018 3.89 MB Copy URL
Kollmorgen Automation and Motion Control English 06 Nov 2019 15.76 MB Copy URL
Kollmorgen Automation Solutions and Product Catalog EMEA English 21 Jun 2018 15.99 MB Copy URL
Kollmorgen Automation Suite (KAS) Catalog English 01 Dec 2017 14.02 MB Copy URL
Kollmorgen Optimized Solutions and Special Duty Motors English 01 Jan 2018 1.26 MB Copy URL
Kollmorgen Automationslösungen Katalog German 09 Apr 2017 11.17 MB Copy URL
KOLLMORGEN Motion Control- und Antriebslösungen Katalog CH German 01 Jan 2020 13.54 MB Copy URL
Kollmorgen Catalogo Automazione e Motion Control IT Italian 01 Jan 2020 12.08 MB Copy URL
Kollmorgen otomasyon ve hareket kontrol çözümleri kataloğu TR Turkish 12 Feb 2016 11.05 MB Copy URL
科尔摩根 运动控制及伺服系统解决方案 Chinese, Simplified 26 Jan 2018 16.64 MB Copy URL
科尔摩根AKM同步伺服电 选型指南 RevC Chinese, Simplified 01 Jun 2017 6.82 MB Copy URL
科尔摩根锂电行业解决方案 Chinese, Simplified 17 Apr 2020 1.7 MB Copy URL
Title Language(s) Date Size
Kollmorgen Motion Components Brochure EN RevB English 14 Oct 2011 1.81 MB Copy URL
Kollmorgen Robotic Solutions Brochure EMEA English 23 May 2018 2.56 MB Copy URL
Packaging Brochure EN English 28 Aug 2013 2.14 MB Copy URL
Robotic Solutions Brochure English 17 Apr 2018 3.06 MB Copy URL
Robotertechnik Broschüre German 26 Mar 2018 2.06 MB Copy URL
Servomotori per Robotica Brochure Italian 26 Mar 2018 2.4 MB Copy URL
Robotik Motor Çözümleri Turkish 28 Mar 2018 2.15 MB Copy URL

These 3D models are intended to guide your design activities and may be used as reference information. Be sure to consult a Kollmorgen expert to ensure you have the most current and accurate information for critical aspects of design work

Title Language(s) Date Size
AKM 3D Models & 2D Dimensions English 05 Jun 2018 Copy URL
Ingress Protection of Servo Motors [toc] Sealing is an important design tool used to prolong the life of motors against harsh environments containing dust or liquid contaminants. There are arguably an unlimited number of...
Configurando Motores com Freio no Workbench [toc] Descrição A única forma de controlar o tempo e acoplamento/desacoplamento do sistema de frenagem estática de um servomotor nos drives AKD, é através da parametrização...
FAQ Seiten Im Folgenden finden Sie Links zu den verschiedenen FAQs (Frequently Asked Questions) auf dieser Website. AKD2G FAQ (EN) AKD FAQ (DE) Feedback (DE) FAQ Feldbus FAQ Sicherheit FAQ...
Wiring Pin-Out For AKM with Commutating Encoder to B8000 Series Drives This document contains pin-out information for the AKM1x and AKM2x C connectors with commutating encoder to the B8000 series of IDC drives.
Resolver Based AKM Motors to CD Series Drives This document explains how to compensate for the settings and offsets between the AKM motors and CD Series Drives.  It covers the different phase nomenclature between the motors and...