Product Description:

Kollmorgen manufactures the AKM21G-ANM22-00 servo motor as part of the AKM Synchronous Servo Motors series. This permanent-magnet unit converts drive current into controlled torque and speed for closed-loop motion axes used in automated assembly cells, indexing mechanisms, and light material processing equipment. It is intended for compact servo applications that need repeatable motion, stable speed control, and responsive torque delivery during frequent start and stop cycles. The motor is supplied at the standard customization level, so it uses the standard mechanical and electrical arrangement for this model.

The motor uses a 24 V holding brake that engages during power loss to help keep the axis in position against outside forces. Rotor position is measured by an optical encoder with 2048 lines per revolution, providing dense incremental feedback for precise speed regulation and accurate position tracking. This sensor is built as a Comcoder, so one feedback device supplies both incremental and commutation signals to the drive. It uses single-turn optical feedback, which means position data is tracked within one mechanical revolution and does not retain multi-turn position information after shutdown. Mounting is provided by an IEC flange with accuracy N, supporting accurate alignment with couplings or gearboxes.

The motor uses a 58 mm frame, giving it a compact footprint for machinery with limited installation space. Torque is transmitted through a smooth shaft, which is suited to clamp or compression couplings without a keyed interface. It has rotor length index 1, indicating the shortest build in this motor family and helping keep rotor inertia and axial length low. The motor also uses winding designation G, which corresponds to an electrical setup intended for moderate continuous current with short peak demand capability. That layout supports quick acceleration and controlled motion in light-duty servo axes.