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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



  • 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

Media & Downloads

Title File Language Date Share URL
AKM Instruction Manual EN DE IT ES FR RU English, French, German, Italian, Russian, Spanish
Share URL /sites/default/files/public_downloads/AKM_Installation-ge-en-it-sp-fr-ru.pdf
Kollmorgen 2G Cable Guide English
Share URL /en-us/products/accessories/cables/literature/kollmorgen-2g-cable-guide
Washdown Data Sheet EN English
Share URL /sites/default/files/public_downloads/Washdown%20Data%20Sheet_en-US_revC.pdf
Title Language Date Share URL
Kollmorgen Full-line Catalog English Share URLview
AKM Washdown Datasheet EN revC English Share URLview
Kollmorgen AKM Servomotor Selection Guide English Share URLview
Kollmorgen AKM Washdown Food Gearmotor Flyer UK English Share URLview
Kollmorgen Automation Solutions and Product Catalog EMEA English Share URLview

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 File Language Date Share URL
AKM EU RoHS Declaration (RoHS10) English
Share URL /sites/default/files/public_downloads/RoHS10W_standard%20AKM.pdf
AKM Servomotor EU Declaration of Conformity US EN English
Share URL /sites/default/files/public_downloads/AKM%20CE%20Declaration%2009APR20.pdf
AKM_Regulation_REACH_EU_Eng English
Share URL /sites/default/files/2024-04/AKM_Regulation_REACH_EU_Eng.pdf
CEL China Efficiency Labelling for Servo and Stepper Motors English
Share URL /sites/default/files/public_downloads/CEL%20Technical%20Notice%20on%20Efficiency%20for%20Servo%20and%20Stepper%20Motors.pdf
Kollmorgen CE Technical Notice - Servo and Stepper Motors Efficiency English
Share URL /sites/default/files/public_downloads/Kollmorgen%20CE%20Technical%20Notice%20-%20Servo%20and%20Stepper%20Motors%20Efficiency.pdf

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