AKMH™ Hygienic Design Guide
Hygienic Design
The Food and Drug Administration (FDA) is an agency of the United States Department of Health and Human Services.
The FDA is responsible for protecting and promoting public health through the regulation and supervision of food safety,
vaccines, biopharmaceuticals, blood transfusions, medical devices and other products.
The “European Hygienic Engineering and Design Group” (EHEDG) is a European-based non-government organization
devoted to the advancement of hygienic design and food engineering. European legislation requires that handling,
preparation, processing, packaging, etc. of food is done hygienically, with hygienic machinery in hygienic premises (the food
hygiene directive, the machine directive and the food contact materials directive).
Certifications: UL, CE, RoHs, BISSC, NSF, USDA, FDA, EAC, designed to EHEDG guidelines, according to DIN EN ISO 14159
and DIN EN 1672-2
Surface: Stainless steel 316L/1.4404. roughness < 0.8 μm
Immunity: Against tested industrial cleaning agent, corrosion-proof
Degree of Protection: IP69K
Mounting Screw*: Stainless steel 316L/1.4404. sealant FDA 21 CFR 175.300
O-Ring: EPDM or Viton, FDA 21 CFR 177.2600
Shaft: Stainless steel 316L/1.4404
Rotary Shaft Seal: Mineral filled PTFE, single lip, mineral: FDA 21 CFR 175.300. PTFE: FDA 21 CFR 177.1500
Shaft Center Screw*: Stainless steel 1.4404. sealant FDA 21 CFR 175.300
Bearing Grease: Food-grade as per FDA 21 CFR 178.3570
Cable Gland: Stainless steel 1.4404. Silicone seal FDA 21 CFR 177.2600
Cable Tube: Silicone FDA 21 CFR 177.2600
Name Plate: Laser marked in housing
Size: AKMH2 to AKMH6
Tested properties with respect to cleaning agents
The testing lab of ECOLAB Deutschland GmbH tested the resistance of the external surfaces to the following industrial
cleaning agents:
» P3-topactive DES
» P3-topax 12
» P3-topax 56
» P3-topax 66
» P3-topax 990
In the process, the surfaces were immersed in the respective cleaning agent at 21°C temperature for 28 days. This
corresponds to approx. 2.500 cleaning cycles with 15-minute contact each with the cleaning agent or 1.500 cleaning cycles
with cleaning and subsequent disinfection. Due to the possible relaxation after each treatment in practice the chemical
attack would be even lower.
Kollmorgen can only give a guarantee for the motor’s lifecycle if the tested cleansing agents are used. Contact Kollmorgen
Customer Support for information on motor use with alternative cleaning agents.
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