Back to top

Stainless Steel AKMH Series

Kollmorgen has designed custom motors for challenging environments for over 70 years. The most notable were the motors used in Jason Jr., the ROV that was used to explore the Titanic. The culmination of these experiences has been leveraged in the AKMH series of motors. Designed for food contact and splash zones, the AKMH reduces cleaning time and maintenance, thus directly contributing to higher overall OEE for machines.


Companion Products 

We designed our next-generation AKD® Series with the versatility, communications, power and bandwidth...

Reduced Recall Risk. The Food Modernization Safety Act (FMSA) gives the US federal government the ability to shutdown facilities, recall food products, and levy stiff fines to ensure public safety in regards to food product manufacturing. The AKMH is designed to meet the toughest hygienic requirements in the industry in order to reduce the possibility of food borne illnesses and costly recalls.

Designed for Fast Cleaning and Increased Uptime. The AKMH stainless steel motor is designed to meet the standards for IP69K, EHEDG, and 3A and is built with FDA approved, food grade materials. The careful elimination of flat surfaces, cracks, and crevices prevents the build-up of foreign material and bacteria. The AKMH housing and cable can endure daily wash downs with high pressure, high temperature, and caustic chemicals. The robust design means that guards and covers are not required to protect the motor from harsh cleaning regimens. These AKMH features constitute quicker cleaning, keeping your machine running, and increasing the OEE of your manufacturing line.

Bottom Line. The Stainless Steel AKMH series is designed for strict aseptic machine applications. The AKMH comes in 19 standard motor sizes, with multiple standard windings for each to fit the many motor applications found in food, beverage, and pharmaceutical industries. Kollmorgen’s AKMH helps maintain the highest standard of machine cleanliness, increases OEE, and reduces the possibility of devastating recalls.

  • Increase your machine’s OEE through superior wash-down design reliability
  • Reduce your machine’s cost of ownership due to reduced cleaning time and increased reliability
  • Enhance the value of your machine by lowering your customer’s risk of recall… due to the superior hygienic design of the AKMH
  • IP69K certification for motor and cable
  • Unique design techique to eliminate condensation
  • FDA Approved, food-grade O-ring seals
  • All exposed surfaces are 316L Stainless Steel, superior to 303/304 for hygiene & corrosion resistance
  • Round design with no nooks or crannies
  • Sloped rear cover to eliminate puddling, even in vertical mounting
  • No external hardware (no bolts, washers, or screws) to trap soil or pathogens or fall into food
  • Smooth surface meeting EHEDG & 3A criteria, promotes rapid cleaning and no harboring of pathogens
  • FDA Approved, food-grade bearing lube
  • FDA Approved, food-grade shaft seal
  • Cable designed to elminate the need for conduit
  • No protective covers needed for washdown.. No secondary cleaning disassembly required
  • FDA approved, food-grade tubing option for applications where the cable is in the food zone
  • Single cable for increased reliability, faster cleaning, and fewer places to harbor pathogens
  • Hygienic marking method eliminates harboring of pathogens
  • Hygienic, IP69K shaft seal, that includes special shaft treatment for long life


  • Our customizable fit will meet your needs, so you spend less time tweaking your machine’s mechanicals
  • Innovative design features to reduce the cost and time associated with installation
  • Industry leading configurability for optimized performance
  • 19 frame/stack length combinations
  • Windings designed to optimize the performance of your machine
  • Cables designed for direct connection to the AKD drive family (plug & play)
  • Face and flange mounts available in both IEC and NEMA standards
  • Rated speeds to 8000 rpm
  • Continuous torques to 22 Nm
  • Peak torques to 92 Nm
  • Cables designed to meet NFPA 79 without the need for additional thermal overload protection
  • Configurable cable lengths to 15 meters; no intermediate junction boxes needed
  • All digital feedback with digital nameplate for auto-setup
  • Brake option
  • Multi-turn absolute feedback option, single-turn absolute feedback standard
  • UL/CE/IP69K certifications
  • EHEDG/NSF/BISSC certifications pending
  Rated Power
(kW) Range
Continuous Torque Range
Peak Torque Range Max Speed Motor Diameter
AKMH2 0.18 - 0.52 .4 - 1.4 1.6 - 5.5 8000 72.5
AKMH3 0.35 - 0.72 1.1 - 2.5 4 - 10.5 8000 85
AKMH4 0.6 - 1.0 1.7 - 5 6 - 20 6000 114
AKMH5 0.77 - 2.2 4 - 12 13 - 45 6000 132
AKMH6 2.1 - 5.5 10.4 - 21 35 - 79 6000 186

Summary of 19 available AKMH sizes. See the AKMH Selection Guide for more details

Title Language(s) Date Type Size
pdfAKD and S700 Accessories Guide North America EN (REV H) English 16 Nov 2017 Documentation 4.39 MB
pdfAKMH Part Number Scheme English 01 Nov 2014 Documentation 19.22 KB
pdfAKMH Servomotor EU Declaration of Conformity EN English 21 Apr 2016 Certifications 260.78 KB
pdfKollmorgen EU Declaration of Conformity AKMH English 19 Apr 2016 Certifications 175.41 KB
pdfREACH Declaration of Conformity English 01 Feb 2015 Certifications 88.07 KB
pdfGuide to the application of Machinery Directive 2006-42-EC English 01 Jun 2010 Certifications 1.6 MB
pdfEC Machine Directive 2009-127-EC English 21 Oct 2009 Certifications 817.6 KB
pdfEC Machine Directive 2006-42-EC English 06 Sep 2006 Certifications 1.37 MB
pdfProduct Safety Directive English 03 Dec 2001 Certifications 254.32 KB
pdfEU Product Liability Directive English 25 Jul 1985 Certifications 148.59 KB
pdfAKMH Datasheet EN (REV B) English 16 Sep 2015 Datasheet 1.48 MB
pdfAKMH-Datasheet revB en-US English Datasheet 1.48 MB
pdfAKMH Datasheet-end-user en-US revB English Datasheet 1.12 MB
pdfAKMH Motor Guide for Legacy Equipment English Datasheet 232.06 KB
pdfAKMH-ERD Safety Guide EN DE (REV 07-2016) English, German 22 Jul 2016 Documentation 1.47 MB
pdfAKMH Instruction Manual EN DE (REV 5/2016) English, German 31 May 2016 Documentation 4.38 MB
pdfEAC Certification for Motors English, Russian 03 Jul 2017 Certifications 3.58 MB
pdfApprovals and Certifications English, German, Russian 04 May 2017 Certifications 2.66 MB
pdfRoHS General Declaration English, German 01 Oct 2015 Certifications 44.37 KB
pdfRAPEX Leitfaden English, German 16 Dec 2009 Certifications 3.17 MB
Title Language(s) Type Date Size
AKMH End-user Flyer English Brochure 11 Apr 2018 798.79 KB
AKMH Selection Guide Rev E EN English Catalog 14 Mar 2018 4.06 MB
Kollmorgen AKMH Servo Motor Flyer UK English Brochure 02 Oct 2015 998.78 KB
Kollmorgen AKMH Stainless Steel Motor Selection Guide UK English Catalog 02 Oct 2015 4.22 MB
Kollmorgen Automation and Motion Control English Catalog 01 Dec 2017 14.74 MB
Kollmorgen Automation Solutions Catalog English Catalog 01 Dec 2017 14.02 MB
Kollmorgen Motion Components Brochure EN RevB English Brochure 14 Oct 2011 1.81 MB
Kollmorgen Optimized Solutions and Special Duty Motors English Catalog 01 Jan 2018 1.26 MB
Kollmorgen AKMH Selection Guide DE German Catalog 02 Oct 2015 3.51 MB
Kollmorgen AKMH Servomotor Flyer DE German Brochure 02 Oct 2015 839.08 KB
Kollmorgen Automationslösungen Katalog German Catalog 09 Apr 2017 11.17 MB
KOLLMORGEN Motion Control- und Antriebslösungen Katalog CH German Brochure 03 Apr 2018 12.7 MB
Kollmorgen AKMH Servomotor Selection Guide IT Italian Catalog 02 Oct 2015 3.65 MB
Kollmorgen delle soluzioni per automazione e movimento Catalogo Italian Catalog 08 Jan 2018 11.2 MB
Kollmorgen otomasyon ve hareket kontrol çözümleri kataloğu TR Turkish Catalog 12 Feb 2016 11.05 MB
科尔摩根 运动控制及伺服系统解决方案 Chinese, Simplified Catalog 26 Jan 2018 16.64 MB
科尔摩根AKMH不锈钢直冲式电机选型指南 Chinese, Simplified Brochure 13 May 2016

Welcome to the new Kollmorgen interactive 3D Modeling site. To access our 3D models, start by selecting the frame size (AKMH2 through AKMH6). Then configure your model by selecting stack length, mounting style, feedback device, connectors, and brake options. Click on the generate preview button and your model will appear. Move to the CAD Download tab to access your model in a wide variety of CAD software types and versions. You can even download a quick pdf of the model you selected for quick reference.