Product Description:

The AKMH21E-ACKNCA1K is a stainless-steel servo motor built by Kollmorgen within the AKMH Stainless Servomotors series. Designed as a hygienic washdown motor for automated food and pharmaceutical equipment, it uses a 1.4404 (316L) housing, an FDA-approved O-ring flange seal, and an IP69K shaft seal to withstand high-pressure sanitation. Surface roughness stays below 0.8 µm to help minimize residue buildup. Frame size AKMH2 with rotor length code 1 suits compact machinery, and the shaft follows DIN 748 / DIN 6885 T1 with a closed keyway. The motor mounts on an IEC flange in the IM B5 style.

The motor delivers a continuous stall torque of 0.36 N·m while drawing 2.67 Arms, so it can hold a steady load without overheating. Winding type E uses a copper winding resistance of 3.44 Ω and an inductance of 5.2 mH, which shape current rise and limit ripple. During operation, the rotor can spin up to 7000 rpm and is intended for use with a 120 VAC single-phase supply through a pre-assembled AKD-compatible cable. The Smart Feedback Device (SFD3) encoder communicates motor position to the drive, and the flange ring measures 79 mm in diameter to align with standard gearheads and sealing hardware.

For intermittent overloads, the motor can reach a peak stall torque of 1.46 N·m without exceeding thermal limits. A mineral-filled PTFE gasket helps the assembly tolerate high-temperature sprays. Position data are returned with 11-bit resolution, supporting fine velocity loops in the AKD drive. Overall mass is 3.6 kg, and the rotor inertia is 1.07 × 10⁻⁵ kg·m², which supports quick index moves. A pilot diameter of 40 mm centers the flange, while the 11 mm keyed shaft turns freely because no holding brake is installed. The motor is supplied with a 1 m cable length, which helps in compact machine layouts.