Product Description:

The AKM21C-ENGN2-01 is a synchronous servo motor produced by Kollmorgen within the AKM Synchronous Servo Motors series. As a compact rotary actuator, it supplies controlled torque and speed so drive controllers can execute precise point-to-point or velocity-regulated motion in industrial automation cells. Its electromagnetic design and integrated feedback hardware support real-time position reporting to the host drive, helping the motor maintain accuracy during rapid acceleration. This makes the unit suitable for pick-and-place heads, small gantry axes, and light-duty indexing tables where responsive motion and compact packaging are important.

Mechanically, the motor has a frame diameter of 58 mm and uses rotor length index 1, giving it a short body that fits on small machine plates and in tightly spaced assemblies. Power and feedback are routed through 2 SpeedTec Ready connectors, a keyed arrangement that supports fast tool-free cable attachment and helps keep the connection layout organized. A factory-installed shaft seal limits ingress along the output journal, and the end of that journal is a smooth shaft suited for clamp couplings instead of keyed hubs. Position data come from the internal Comcoder feedback device with a native resolution of 2048 lines/rev, allowing stable velocity control and consistent low-speed feedback.

The electromagnetic circuit uses winding designation C, a coil set balanced for moderate continuous torque with low resistive heating. The feedback electronics use part code EPC 15T and operate in a single-turn optical mode, so the drive receives absolute position data within one mechanical revolution. Because the unit is supplied without a brake, load holding must be provided by the drive or by an external locking device when the application requires the shaft to remain fixed after power is removed. The lack of internal brake hardware keeps rotor inertia lower, and the shaft seal helps limit contamination from washdown or coolant splash at the drive end.