Product Description:

The AKMH64L-ACKNCA1K is a hygienic stainless-steel washdown servomotor from Kollmorgen’s AKMH Stainless Servomotors series. Supplied with a pre-assembled cable for direct connection to an AKD drive, the unit provides closed-loop rotary motion in automated filling, cutting, and packaging cells. It is intended for installations where frequent high-pressure sanitation is required during normal cleaning cycles.

Under a 400 Vac supply, the motor produces a continuous stall torque of 17.9 Nm while drawing 11.9 Arms, and it reaches a rated output of 3829.6 W at 3000 rpm. The stainless frame size AKMH6 incorporates an IP69K enclosure and a 186 mm IEC flange that mounts in the IM B5 orientation with a 130 mm pilot. Electrical performance includes a phase resistance of 0.77 Ω, a peak current of 38.4 Arms, and a rotor inertia of 0.00316 kg·m². Maximum mechanical speed is 3640 rpm, the motor has rotor length code 4, and the 32 mm closed-keyway shaft follows DIN 748 and DIN 6885 T1. Sensing is handled by an 11-bit SFD3 feedback encoder for closed-loop control.

The hygienic housing uses 1.4404 stainless steel with a surface roughness below 0.8 µm, and all external seals, including the FDA-approved O-ring and the IP69K shaft seal, are built for caustic washdowns. The motor has no integral brake, so static holding must be supplied by the drive when the axis is stopped. Its cable jacket is made from mineral-filled PTFE and is fixed at a length of 1 meter to reduce bacteria traps. Dynamic capacity is supported by a torque constant of 1.53 Nm/Arms and a peak stall capability of 49.17 Nm. The electrical model also lists a back-EMF constant of 106.6 Vrms/kRPM and a winding inductance of 6.22 mH, which help match the motor to AKD current regulators during rapid indexing.