Product Description:

The AKMH64K-ACKNCA1K is a hygienic stainless steel washdown motor produced by Kollmorgen within the AKMH Stainless Servomotors series. Designed for wet-area automation tasks such as meat processing or pharmaceutical filling lines, the motor delivers closed-loop rotary positioning without an internal holding brake and instead relies on drive torque for holding. A pre-assembled cable matched to AKD drives simplifies hookup on machines that require rapid sanitation and regular washdown cycles.

The unit produces a continuous stall torque of 18 N·m while drawing a continuous stall current of 8.74 Arms. This combination indicates the steady load the shaft can hold without overheating during continuous operation. The torque constant is 2.09 N·m/Arms, so the controller can relate output torque directly to phase current. A back-EMF constant of 146.5 Vrms/kRPM links shaft speed to generated voltage and supports accurate field-oriented control. The phase inductance of 11.8 mH smooths current transitions and helps the AKD drive maintain tight regulation. Powered from 480 Vac, the motor reaches a rated speed of 2500 rpm, and the 11-bit Smart Feedback Device encoder supports fine indexing. The rotor inertia is 0.00316 kg-m², the rotor length code is 4, the attached cable length is 1 meter, and the dimensions align with the AKMH6 frame envelope.

Mechanically, the stator housing is machined from 1.4404 stainless steel with a surface roughness below 0.8 µm, and an FDA-approved O-ring seals the 186 mm flange. Mineral-filled PTFE gaskets support IEC flange mounting, while the 130 mm pilot centers the motor. Phase resistance of 1.43 Ω helps limit I²R heating as the rotor accelerates toward 3020 rpm. A closed keyway on the 32 mm shaft is protected by a shaft seal, and the enclosure meets the IP69K protection class. The assembly weighs 26.7 kg and installs in the IM B5 orientation in accordance with DIN 748 and DIN 6885-T1.