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AKMH Servo Motor 600px

Stainless Steel AKMH Series

Kollmorgen has designed custom solutions for challenging environments since our founding in 1916. 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.


Product available worldwide


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

Selection Guide

Servo Motor Product Selector

Kollmorgen Product Selector

Media & Downloads

Title File Language Date Share URL
AKD2G, AKD and S700 Accessories Guide North America EN English
Share URL /sites/default/files/public_downloads/AKD2G%20AKD%20S700%20Accessories%20Guide%20North%20America%20EN%20REV%20K.pdf
AKD2G, AKD Zubehörhandbuch Europa DE German
Share URL /sites/default/files/public_downloads/AKD%20Accessories%20Europe_de.pdf
AKMH Bulkhead Adapter Installation Bulletin English
Share URL /sites/default/files/public_downloads/Installation%20Bulletin%20-%20AKMH%20Bulkhead%20Adapter%20FA0019H.pdf
AKMH Flying Leadas Dual Cables Thermal in Power Installation Bulletin English
Share URL /sites/default/files/public_downloads/Installation%20Bulletin%20-%20AKMH%20Flying%20Leadas%20Dual%20Cables%20Thermal%20in%20Power%20FA0013H.pdf
AKMH Flying Option Installation Bulletin - Dual Cables English
Share URL /sites/default/files/public_downloads/Installation%20Bulletin%20-%20AKMH%20Flying%20Option%20-%20Dual%20Cables%20FA0006H.pdf
AKMH Instruction Manual EN DE English, German
Share URL /sites/default/files/public_downloads/AKMH_Installation-de-en.pdf
AKMH Part Number Scheme (US) English
Share URL /sites/default/files/public_downloads/akmh_e_us.pdf
AKMH Typenschlüssel (EU) German
Share URL /sites/default/files/public_downloads/akmh_d.pdf
AKMH Vented Connector Dual Cables R Option Installation Bulletin English
Share URL /sites/default/files/public_downloads/Installation%20Bulletin%20-%20AKMH%20Vented%20Connector%20Dual%20Cables%20R%20Option%20FA0005H_0.pdf
AKMH Vented Connector Installation Bulletin English
Share URL /sites/default/files/public_downloads/Installation%20Bulletin%20-%20AKMH%20Vented%20Connector%20FA0003H.pdf
Zubehör für digitale Antriebe DE German
Share URL /sites/default/files/public_downloads/Digital%20Drive%20Systems%20Accessories%20Guide%20DE%20%28REV%2012-2014%29.pdf
AKMH Motor Guide for Legacy Equipment English
Share URL /sites/default/files/public_downloads/KM_DS_000242_RevA_EN_AKMH_Data_Sheet_Low_Res.pdf
AKMH-Datasheet revB en-US English
Share URL /sites/default/files/public_downloads/AKMH-Datasheet_revB_en-US.pdf
Kollmorgen 2G Cable Guide English
Share URL /en-us/products/accessories/cables/literature/kollmorgen-2g-cable-guide
Title File Language Date Share URL
AKMH REACH SVHC Certificate of Compliance English
Share URL /sites/default/files/public_downloads/REACH_223_Standard%20AKMH.pdf
AKMH Servomotor EU Declaration of Conformity US EN English
Share URL /sites/default/files/public_downloads/Kollmorgen%20EU%20Declaration%20of%20Conformity%20AKMH.pdf
AKMH UKCA Declaration of Conformity - EU English
Share URL /sites/default/files/public_downloads/DoC_UKCA_AKMH_EU.pdf
AKMH UKCA Declaration of Conformity - USA English
Share URL /sites/default/files/public_downloads/DoC_UKCA_AKMH_USA.pdf
AKMH UL674 Certificate of Compliance English
Share URL /sites/default/files/2023-07/E120721-Vol1-Sec7-20140915.pdf
Approvals and Certifications English, German, Russian
Share URL /sites/default/files/public_downloads/Kollmorgen%20Zertifikate-Certificate_de-en.pdf
Blue Guide English, German
Share URL
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
EAC Certification for Motors English, Russian
Share URL /sites/default/files/public_downloads/eac_declaration_motors.pdf
EU-Konformitätserklärung AKMH German
Share URL /sites/default/files/public_downloads/Kollmorgen%20AKMH%20EU-Conformity%20DE.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

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
AKMH 3D Models & 2D Dimensions English
Share URL

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