Product Description:

The AKMH42E-ACKNCA1K is a hygienic stainless-steel washdown motor from Kollmorgen’s AKMH Stainless Servomotors series. As a sealed IEC-flange unit, it integrates directly into food or pharmaceutical machinery where frequent cleaning is required and the unpainted exterior is easy to sanitize. Its Smart Feedback Device connects to an AKD drive through a pre-assembled 1-meter cable, and a shaft with a closed keyway delivers rotary motion to conveyors, cutters, or dosing pumps in continuous automation.

For continuous operation, the winding draws 2.69 Arms and produces 3.18 N·m, while copper loss is limited by 7.5 ohms of DC resistance and 26.9 mH of inductance. Rated output is achieved at 4000 rpm with 2.48 N·m, and the E-type winding uses a mineral-filled PTFE insulator inside the 1.4404 stator. When higher acceleration is required, the drive may supply 11 Arms to reach 11.18 N·m, and rotor inertia of 0.000145 kg·m² supports fast reversals. The encoder provides 11-bit resolution so servo loops can hold ±1 count at speed. The assembly meets IP69K, and the motor comes without a holding brake to keep mass low for dynamic axes.

The motor has a 114 mm flange that follows DIN 748 / DIN 6885 T1 and IM B5 style codes, and an FDA-approved O-ring seals the joint while an 80 mm pilot centers the AKMH4 frame housing. The 19 mm shaft uses a hygienic shaft seal, and its surface roughness stays below 0.8 µm to reduce material retention during washdown. A closed keyway transfers torque, while the motor body is machined from 1.4404 (316L) Stainless Steel to resist alkaline detergents. Installation uses IEC flange mounting, and cable strain relief is provided at the Smart Feedback interface. The SFD3 encoder tracks motion up to 5470 rpm, which suits the rotor length code 2 and supports high-speed operation within the motor’s thermal limits.