AKMH64K-ACKNCA1K Kollmorgen
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The Kollmorgen AKMH64K-ACKNCA1K is a hygienic stainless steel washdown motor in the AKMH Stainless Servomotors series. It features a continuous stall torque of 18 N-m, continuous stall current of 8.74 Arms, and an IP69K protection class. The motor has a flange diameter of 186 mm, is made with 316L stainless steel housing, and uses a mineral filled PTFE material.
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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.
Frequently Asked Questions about AKMH64K-ACKNCA1K:
Q: What is the continuous stall torque of the AKMH64K-ACKNCA1K motor?
A: The AKMH64K-ACKNCA1K servomotor offers continuous stall torque of 18 N-m for demanding motion control tasks.
Q: What housing material is used in the AKMH64K-ACKNCA1K servomotor?
A: This motor is constructed from 1.4404 (316L) stainless steel, providing excellent corrosion resistance in harsh environments.
Q: What level of environmental protection does the AKMH64K-ACKNCA1K offer?
A: The product achieves IP69K protection class, enabling it to withstand high pressure and high temperature washdown procedures.
Q: What are the shaft specifications of the AKMH64K-ACKNCA1K motor?
A: With a shaft diameter of 32 mm and a closed keyway, this model ensures reliable shaft coupling in precision applications.
Q: Which encoder type and resolution are included on the AKMH64K-ACKNCA1K?
A: The smart feedback device (SFD3) encoder on this motor provides 11-bit resolution for accurate positioning.