AKMH42E-ACKNCA1K Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen AKMH42E-ACKNCA1K is a hygienic stainless steel washdown motor from the AKMH Stainless Servomotors series. It features a continuous stall torque of 3.18 N-m with a continuous stall current of 2.69 Arms and achieves a rated speed of 4000 rpm at 480 Vac. The motor has a flange diameter of 114 mm, a closed keyway shaft type, and is protected to IP69K with housing made from 1.4404 (316L) stainless steel.
Internal Product Review
The AKMH42E-ACKNCA1K is a hygienic stainless steel washdown motor built with 316L stainless steel for demanding sanitary motion applications. IP69K protection and the Smart Feedback Device (SFD3) support dependable operation in washdown systems that require accurate feedback. Continuous stall torque of 3.18 N-m with peak stall torque of 11.18 N-m makes the motor a strong choice for compact servo axes.
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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.
