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AKM™ Washdown and Food Grade Servo Motors

Kollmorgen AKM™ Washdown and Washdown Food Series motors are available in frame sizes 2 through 6. These innovative motors incorporate our industry-leading AKM electromagnetics within a housing protected by a 2-K coating and IP67-rated seal configuration. Stainless steel hardware is used on all precision interfaces. The food-grade model incorporates greases that are safe for incidental contact and consumption.

Product available worldwide
Industry 4.0 Ready



  • Frame sizes 2 through 6
  • Static torques from 1 to 25 N-m
  • Available with a wide range of standard lengths, windings, feedback systems and connection technologies
  • Resistant to corrosive chemicals including highly alkaline or acidic cleaning products
  • Food-grade version complies with FDA requirements, including lubricants and materials safe for incidental contact and consumption
  • IP67 seal design featuring PTFE shaft seal
  • Stainless steel shaft


  • Ideal for applications subject to strict hygiene regulations
  • A cost-effective solution for any application that requires periodic washdown
  • Increased motor life
  • Higher purification rating
  • No additional cover or special protection required for the motor casing
  • Meets the needs of a wide range of applications without requiring expensive, high-grade stainless steel for the motor casing
  • Stainless steel used for motor shaft, screws and connectors


Frame Size units AKM2 AKM3 AKM4 AKM5 AKM6
Stack Length   1,2,3,4 1,2,3 1,2,3,4 1,2,3,4 2,3,4,5
Windings   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
Max BUS VDC 640
Max Stall Tc Nm (lb-in) 1.4 (12.6) 2.88 (25.5) 6.0 (53.1) 14.1 (125) 25.0 (221)
Max Tp Nm (lb-in) 4.82 (42.7) 10.22 (90.5) 20.4 (181) 38.4 (340) 65.2 (577)
Max Rated N 8000 7000 6000 6000 6000
Max Rated Power @ Max BUS kW (Hp) .54 (.72) 1.19 (1.59) 1.73 (2.32) 3.87 (5.19) 6.16 (8.25)
Chemical Resistance (Ph) 2–12
Ingress Protection   IP67
Shaft   Stainless Steel
Connector Housing   Stainless Steel*

Selection Guide

Modification Is Our Standard

We understand that commercial off-the-shelf motors can’t meet every design and performance demand. That’s why we offer thousands of standard modifications.

Motor Features Standard Modifications
Front shaft dimensions Customer-specific shaft dimensions including length and diameter; or shaft features such as open keys, keyways or special machined features
Special Winding Special windings to optimize servo system efficiency
Connectors and Cables Customer-defined motor connector configurations, pinouts, and cable requirements
Front Moung dimensions Special Front Endbell (A-flange) machining to meet customer-specific mounting requirements
Alternative Feedback devices AKMH production allows for installation and test of numerous customer-specified, third-party feedback devices
Thermal sensor PTC or linear thermistor-type devices

We Can Also Fully Customize

Don’t see what you need? We’ll work with you to customize a perfect fit for your application, with rapid prototyping and ramp-up to full-rate production. Get in touch and let us know what you are looking for.

Application Form

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
pdfAKM Instruction Manual EN DE IT ES FR RU (REV 06/2021) English, French, German, Italian, Russian, Spanish 01 Jul 2021 8.5 MB Copy URL
Title Language(s) Date Size
Kollmorgen 2G Cable Guide English 14 Mar 2019 Copy URL
pdfWashdown Data Sheet EN revC English 28 Aug 2013 215.34 KB Copy URL
Title Language(s) Date Size
AKM Washdown Datasheet EN revC English 24 May 2012 215.34 KB Copy URL
Kollmorgen AKM Washdown Food Gearmotor Flyer UK English 02 Oct 2015 578.43 KB Copy URL
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Kollmorgen AKM Servomotor Selection Guide English 28 Apr 2021 20.79 MB Copy URL
Kollmorgen Automation and Motion Control English 14 Jun 2021 15.53 MB Copy URL
Kollmorgen Automation Solutions and Product Catalog EMEA English 21 Jun 2018 15.99 MB Copy URL
Kollmorgen Optimized Solutions and Special Duty Motors English 01 Jan 2018 1.26 MB Copy URL
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AKM 3D Models & 2D Dimensions English 05 Jun 2018 Copy URL
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