Product Description:

The AKMH65K-ACKNCA1K is a hygienic stainless-steel washdown servo motor produced by Kollmorgen as part of the AKMH Stainless Servomotors series. In food, beverage, and pharmaceutical automation, it supplies precise rotary motion directly at the process line, eliminating protective housings that trap debris. The motor body is machined from 1.4404 (316L) stainless steel and couples to machinery through an IEC flange mount for direct installation without adapters. A smooth mineral-filled PTFE exterior, an FDA-approved O-ring flange seal, and a surface finish of less than 0.8 µm help prevent bacterial retention during aggressive cleaning cycles.

The AKMH6 frame provides a flange diameter of 186 mm that matches a pilot of 130 mm for centering, and the active stack length is 259.9 mm. When supplied from a DC bus up to 640 VDC, the winding can draw a peak phase current of 29.4 A, generating up to 65.9 Nm of dynamic torque for rapid indexing tasks. The inductance of 11.4 mH and resistance of 1.35 Ω shape the electrical time constant, while a rotor inertia of 40 kg·cm² balances acceleration with load stability. The enclosure withstands pressurized cleaning jets, and the smooth flange simplifies alignment with hygiene-critical machinery.

During holding conditions, the winding limits current to 9.3 A to achieve a standstill torque of 21.4 Nm, and each ampere converts to motion with a torque constant of 2.32 Nm/A. Position feedback is delivered by an SFD3 encoder that provides 11 bit resolution, enabling fine velocity regulation even though the design omits a brake. Power is transmitted through a closed-keyway shaft with a diameter of 32 mm, protected by an IP69K shaft seal that supports the enclosure rating. Rotor length code 5, the pre-assembled 1 m AKD cable, DIN 748 / DIN 6885 T1 compliance, and flange style IM B5 support installation in washdown zones.