Category: Kollmorgen

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

Protective Device

AKMH motors are fitted with an electrically isolated temperature sensor (rated temperature 155°C ± 5%)

and integrate into the motor temperature monitoring system (e.g. Kollmorgen’s AKD). The standard

motor option is equipped with a KTY83-110 equivalent thermal sensor and serially connected PTC

thermistor, with a threshold limit setting of 2500 Ohms.

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

Protection Class

Protection class IP69K has been created for high pressure and high temperature cleaning

according to DIN 40050-9. Code “6” (Dust tight. No ingress of dust.) defines the protection

against solids. Code “9K” (Protected against close-range high pressure, high temperature spray

downs.) defines the protection against liquids.

IP69K protection class is for static use only. This rating does not account for water present

while the shaft is rotating. For applications that require sealing during rotation, please contact

Kollmorgen Customer Support.

Insulation Material

AKMH motors are insulation class F according to IEC 60085 (UL1446 class F).

Surface

The AKMH motor housing is made from 316L or 1.4404 stainless steel with surface roughness <  0.8 μm

pursuant to EHEDG requirements.

Phasing Diagram – All Motors

• When the motor is rotated C.W. (viewed from drive shaft end), the

following Bemf voltage waveforms result:

• Voltage phase-U, leads Voltage phase-V, by 120-degrees

• Voltage phase-V, leads Voltage phase-W, by 120-degrees

• Voltage phase-W, leads Voltage phase-U, by 120-degrees

Protection Class

Protection class IP69K has been created for high pressure and high temperature cleaning

according to DIN 40050-9. Code “6” (Dust tight. No ingress of dust.) defines the protection

against solids. Code “9K” (Protected against close-range high pressure, high temperature spray

downs.) defines the protection against liquids.

IP69K protection class is for static use only. This rating does not account for water present

while the shaft is rotating. For applications that require sealing during rotation, please contact

Kollmorgen Customer Support.

AKMH™ Technical Guide

General Technical Data

Ambient Temperature: 0…+25° C for site altitude up to 1000 m amsl (at rated values).

It is vital to consult our applications department for ambient temperatures

above 40° C and/or any enclosed environment.

Power De-rating:

(currents and torques)

1% / °C in range 40° C…50° C up to 1000 m amsl for site altitude above 1000 m amsl and 40° C

» 6% up to 2000 m amsl

» 17% up to 3000 m amsl

» 30% up to 4000 m amsl

» 55% up to 5000 m amsl

For site altitudes above 1000 m amsl, no de-rating with temperature reduction of 10° C / 1000 m

Temperature De-rating: If the application requires de-rating due to lower motor surface temperature,

please contact our applications department.

Ball-bearing Life: ≥ 20.000 operating hours

Phasing Diagram – All Motors

• When the motor is rotated C.W. (viewed from drive shaft end), the

following Bemf voltage waveforms result:

• Voltage phase-U, leads Voltage phase-V, by 120-degrees

• Voltage phase-V, leads Voltage phase-W, by 120-degrees

• Voltage phase-W, leads Voltage phase-U, by 120-degrees

AKMH™ Design Features

The key benefits of AKMH hygienic design features:

Reduces risk of food recall

Increases reliability in wash-down applications

Reduces cleaning time: higher OEE

AKMH™ Technical Guide

General Technical Data

Ambient Temperature: 0…+25° C for site altitude up to 1000 m amsl (at rated values). It is vital to consult

our applications

department for ambient temperatures above 40° C and/or any enclosed environment.

Power De-rating:

(currents and torques)

1% / °C in range 40° C…50° C up to 1000 m amsl for site altitude above 1000 m amsl and 40° C

» 6% up to 2000 m amsl

» 17% up to 3000 m amsl

» 30% up to 4000 m amsl

» 55% up to 5000 m amsl

For site altitudes above 1000 m amsl, no de-rating with temperature reduction of 10° C / 1000 m

Temperature De-rating: If the application requires de-rating due to lower motor surface temperature,

please contact our applications department.

Ball-bearing Life: ≥ 20.000 operating hours

The Benefits of AKMH™ Motors

» Highly configurable motor selection means an optimal

fit for your machine and less time needed to find the right

mechanical components

» Innovative design features reduce associated cost and time of installation.

» Industry leading configurability for optimized performance

» 19 frame/stack length options

» Windings designed for optimized machine performance

» Cables designed for direct connection to AKD2G and AKD servo drives (plug

& play)

» Cables designed to meet NFPA 79 without the need for additional thermal

overload protection

» Standard configurable cable lengths to 15 meters; no intermediate junction

boxes needed

» Face and flange mounts available in both IEC and NEMA standards

» Brake option

» Multi-turn absolute feedback option; single-turn absolute feedback standard

» Additional feedback options available for retrofitting fielded motors with

non-Kollmorgen drives

» Single and dual cable options for use with non-Kollmorgen drives

» UL/CE/RoHS/IP69K/BISSC/NSF/USDA/EAC certifications

» Designed to EHEDG guidelines

Specify only Kollmorgen AKMH systems to ensure:

» Reduced risk of food recall

» Reduced cleaning time, higher OEE

» Highest reliability and durability

The Benefits of AKMH™ Motors

» Increase your machine’s Overall Equipment Effectiveness (OEE)

with water and chemical resistant designs that maximize motor reliability

» Reduce your machine’s total cost of ownership with shortened

cleaning times and improved durability

» Enhance the value of your machine by lowering your

customer’s risk of recall through the superior hygienic design of AKMH

» IP69K certification of motor and cable inside the washdown environment

» Unique design technique to eliminate condensation

» FDA Approved, food-grade O-ring seals

» All exposed surfaces are 316L or DIN 1.4404 Stainless Steel; superior to

303/304 for corrosion resistance

» Round design with no nooks or crannies

» Sloped rear cover and connector mounting surface 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 criteria, promotes rapid cleaning and no

harboring of pathogens

» FDA Approved, food-grade bearing lube

» FDA Approved, food-grade shaft seal

» Cable designed to eliminate the need for conduit

» Hygienic, IP69K shaft seal includes special shaft treatment for long life

» No protective covers needed for washdown; no secondary cleaning disassembly required

» FDA approved, food-grade tubing option for applications where the cable is in a food zone

» Washdown cable(s) for increased reliability, faster cleaning, and fewer places

to harbor pathogens

» Hygienic marking method eliminates harboring of pathogens

» Unique vented tube or connector design that equalizes pressure when

temperature drops; e.g., during wash-down

Removing the Barriers of Design, Sourcing, and Time

At Kollmorgen, we know that OEM engineers can achieve

a lot more when obstacles aren’t in the way. So, we clear

obstacles in three important ways:

Integrating Standard and Custom Products

The optimal solution is often not clear-cut. Our

application expertise allows us to modify standard

products or develop totally custom solutions across our

whole product portfolio so that designs can take fl ight.

Providing Motion Solutions, Not Just Components

As companies reduce their supplier base and focus

their engineering manpower on the product design,

they need a total system supplier with a wide range

of integrated solutions. Kollmorgen off ers complete

solutions as well as motion subsystems that combine

programming software, engineering services and best

in-class motion components.

Global Footprint

With direct sales, engineering support, manufacturing

facilities, and distributors spanning the Americas,

Europe, the Middle East, and Asia, we’re close to OEMs

worldwide. Our proximity helps speed delivery and lend

support where and when they’re needed.

Financial and Operational Stability

Kollmorgen is part of Altra Industrial Motion. A key driver

in the growth of all Altra divisions is the Altra Business

System, which relies on the principle of “kaizen” – or

continuous improvement. Using world-class tools,

cross-disciplinary teams of exceptional people evaluate

processes and develop plans that result in superior performance.

Providing Motion Solutions, Not Just Components

As companies reduce their supplier base and focus

their engineering manpower on the product design,

they need a total system supplier with a wide range

of integrated solutions. Kollmorgen off ers complete

solutions as well as motion subsystems that combine

programming software, engineering services and best

in-class motion components.