Product Description:

The AKM21G-ENMN2-00 is a brushless synchronous servo motor produced by Kollmorgen and assigned to the AKM Synchronous Servo Motors series. Built around a compact stator frame, it is intended for compact handling modules, small conveyors, and secondary packaging axes where fast velocity loops and fine position control are required. The motor delivers continuous rotary motion while an optical sensor inside the housing supplies real-time shaft angle data to the servo drive, allowing deterministic motion profiles in industrial automation cells. Its compact format suits machine sections where short axis spacing, low moving mass, and responsive motion are all important.

The motor is supplied in the Standard configuration, meaning it uses the regular production arrangement with no special mechanical or electrical modifications. Its encoder generates 2048 lines/rev; after quadrature decoding this equals 8,192 counts per revolution, giving tight servo gain without excessive controller load. The feedback carrier is a Comcoder, a Kollmorgen hybrid device that combines incremental tracks with commutation signals so the drive can align current vectors at startup. A frame dimension of 58 mm sets the square flange size and matches common mounting brackets or compact gear units. The output shaft is machined as a smooth shaft, eliminating keyseat stress risers and allowing clamp-style couplings that help minimize backlash in precision assemblies.

The encoder operates as a single-turn optical system, so angle data is available over one full mechanical revolution without a battery or a multi-turn gearbox. The feedback type is EPC 15T, matching the motor to compatible drive tables. Mechanical stack length follows rotor length index 1, the shortest variant in the AKM size 2 family, which helps reduce inertia for quick acceleration and short settling times. Electromagnetic characteristics are set by winding designation G, matching the motor to mid-range bus voltages and moderate peak currents. The unit is delivered without a brake, so any load-holding requirement must be met with external clamping or drive torque.