AKMH52H-ACKNCA1K Kollmorgen
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The AKMH52H-ACKNCA1K is a hygienic stainless steel washdown motor produced by Kollmorgen as part of the AKMH Stainless Servomotors series. It features a continuous stall torque of 6.72 N-m, a torque constant of 1.32 N-m/Arms, and uses a Smart Feedback Device for encoder feedback. This motor is built with a 1.4404 (316L) stainless steel housing, an IP69K protection class, and a flange diameter of 148 mm.
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Product Description:
The AKMH52H-ACKNCA1K is a stainless steel servomotor built by Kollmorgen for the AKMH Stainless Servomotors series. Classified within frame size AKMH5, it is designed as a hygienic washdown unit and uses a 1.4404 (316L) housing with an FDA-approved O-ring behind the 148 mm IEC flange to block liquid ingress. The motor follows DIN 748 and DIN 6885 T1 interface rules, uses a 24 mm closed-keyway shaft, and keeps external surfaces below 0.8 µm surface roughness so it can withstand aggressive cleaning in food or pharmaceutical lines.
Electrically, the motor delivers a continuous stall torque of 6.72 N-m while drawing a continuous stall current of 5.17 Arms. These values describe the sustained mechanical output and the current the drive must supply under locked-rotor thermal limits. With a torque constant of 1.32 N-m/Arms, each ampere of phase current produces predictable shaft torque, and a back-EMF constant of 92.7 Vrms/kRPM indicates the voltage generated as the rotor turns. A phase-to-phase DC resistance of 2.37 Ω influences resistive heating and the servo’s I²R power loss. Feedback is provided by an 11-bit Smart Feedback Device (SFD3), and the 110 mm pilot centers the unit on the mounting face to maintain alignment with the driven load.
Dynamic events are handled by a peak stall torque of 20.45 N-m, giving the axis nearly three times its continuous capacity for rapid indexing or for overcoming static loads. The phase inductance of 11.9 mH sets the electrical time constant that the AKD drive must manage during current transients, and the rotor has 10 poles for high-resolution commutation without excessive speed. Washdown integrity is certified to IP69K, and the motor also uses an IP69K shaft seal with a mineral-filled PTFE cable jacket supplied preassembled for AKD drives. Mechanical responsiveness is aided by a rotor inertia of 0.000622 kg-m², and the unit uses rotor length code 2. The motor mounts in the IM B5 style through a flange interface and comes without a brake to simplify sanitation routines.
Frequently Asked Questions about AKMH52H-ACKNCA1K:
Q: What is the continuous stall torque rating for the AKMH52H-ACKNCA1K servomotor?
A: The AKMH52H-ACKNCA1K motor offers a continuous stall torque of 6.72 N-m, enabling sustained performance under constant load.
Q: What protection class does the AKMH52H-ACKNCA1K stainless servomotor feature?
A: This model is protected to the IP69K standard, making it suitable for high-pressure and high-temperature washdown environments.
Q: What is the shaft type and diameter on the AKMH52H-ACKNCA1K motor?
A: The AKMH52H-ACKNCA1K utilizes a closed keyway shaft with a diameter of 24 mm according to DIN 748 / DIN 6885 T1 standards.
Q: What materials are used for housing and flange sealing in the AKMH52H-ACKNCA1K?
A: This servomotor features an FDA-approved O-ring flange seal and 1.4404 (316L) stainless steel housing for hygienic operation.
Q: What is the back EMF constant of the AKMH52H-ACKNCA1K servomotor?
A: The back EMF constant for this motor is 92.7 Vrms per kRPM, making it suitable for precise motion control applications.
