Product Description:

Kollmorgen's AKMH43H-ACKNCA1K is a hygienic stainless-steel servomotor in the AKMH Stainless Servomotors series. Designed for washdown food and pharmaceutical environments, the motor connects directly to an AKD servo drive through its pre-assembled cable. A 1.4404 (316L) stainless housing, an IP69K shaft seal, and surface roughness below 0.8 µm create a contamination-resistant actuator that delivers rotational power for precise axis control in automated machinery.

In continuous operation, the AKMH43H frame supplies 4.55 N·m of torque while drawing 5.22 Arms at stall, which indicates its steady-state output and current demand. During acceleration, the drive can furnish 21.6 Arms to reach 16.12 N·m of peak stall torque. With a torque constant of 0.887 N·m/Arms, each ampere delivered by the amplifier produces proportional torque, and the back EMF constant of 57.4 Vrms/kRPM shows the voltage generated at speed. The windings exhibit 8.75 mH of inductance alongside 2.12 Ω of DC resistance, and these electrical values affect current rise time, servo loop response, and internal thermal losses.

Mechanical integration uses IEC flange mounting, and the 114 mm flange seats against the machine frame through an FDA-approved O-ring seal while an 80 mm pilot helps maintain concentricity. Maximum mechanical speed is 8000 rpm at 480 Vac, while rated operation reaches 6000 rpm on 400 Vac supplies, both supported by a ten-pole rotor whose 0.000209 kg·m² inertia supports responsive moves. The 19 mm closed-keyway shaft meets DIN 748 and DIN 6885-T1 requirements and is protected by an IP69K enclosure for high-pressure washdowns. Heat exits through a 0.8 °C/W thermal path, and winding temperature follows a 63 min thermal time constant. The motor also includes an 11-bit SFD3 encoder, has no holding brake, uses a mineral-filled PTFE jacket, and has a 1 m rotor length.