Product Description:

The AKMH41E-ACKNCA1K servomotor is produced by Kollmorgen within the AKMH Stainless Servomotors series. Engineered as a hygienic stainless-steel washdown unit, it connects directly to an AKD drive through a factory-terminated cable and mounts on an IEC flange. In automated food, dairy, and pharmaceutical machinery, the motor supplies sealed rotary power where caustic detergents, high-pressure spray, and steam are present, using a 1.4404 stainless housing, an FDA-approved O-ring flange seal, and an IP69K shaft barrier to operate continuously without auxiliary enclosures.

In steady operation, the motor delivers a continuous torque of 1.75 N·m while drawing 2.73 Arms. This combination allows continuous operation without exceeding the 1.05 °C/W thermal path. The electromagnetic design converts phase current to torque at a rate of 0.662 N·m/Arms, so control software can estimate shaft torque from commanded current. For intermittent moves, the windings tolerate up to 11.4 Arms and can generate 6.14 N·m at stall, giving extra margin for rapid indexing or overcoming breakaway friction before returning to continuous limits. The ten-pole rotor works with the SFD3 encoder to maintain 11-bit position feedback during these duty changes.

Dynamic electrical behavior is influenced by a back-EMF constant of 45.6 Vrms/kRPM, which indicates the voltage rise associated with speed. A phase inductance of 18.4 mH shapes current ripple, supporting precise control when the rotor inertia is only 0.000081 kg·m². This low inertia helps axes accelerate quickly and stop repeatably at washdown pick stations. The housing, pilot, and shaft seals achieve an IP69K rating, helping keep the winding cavity dry during sanitation exposure. The motor also has a thermal time constant of 40 min, which reflects how quickly its temperature changes under load.