AKM21G-ACSN2-02 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen AKM21G-ACSN2-02 is a synchronous servo motor from the AKM Synchronous Servo Motors series, featuring a 58mm frame dimension and keyway shaft detail. It has a special connector arrangement and uses a Comcoder feedback system with 2048 lines per revolution in a single turn, optical configuration. This model does not include a brake and comes with an IEC flange configuration with accuracy N.
Internal Product Review
The AKM21G-ACSN2-02 is a Kollmorgen AKM synchronous servo motor with Comcoder feedback. Single-turn optical feedback and 2048 lines/rev resolution support precise speed and position control. A keyway shaft and special connector arrangement make the unit a strong fit for efficient machine integration.
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Product Description:
The AKM21G-ACSN2-02 synchronous servo motor is produced by Kollmorgen for the AKM Synchronous Servo Motors series. Designed for compact automation stations, it converts drive current into controlled rotary motion so that indexing heads, laboratory pipettors, or miniature pick-and-place gantries can follow precise position profiles without belt transmissions or gear reductions. The motor integrates with Kollmorgen drives through standard power and feedback cables, allowing control systems to command velocity loops and execute tightly synchronized moves on multi-axis machinery.
The housing is built on a 58 mm square frame and has an IEC flange with accuracy class N, allowing the motor to align directly with precision gearboxes or load adapters. Electrical termination uses a special connector arrangement that separates power and signal contacts for simplified cable routing in crowded enclosures. Position data are generated by a Comcoder sensor that provides an incremental resolution of 2048 lines per revolution to the drive, enabling fine interpolation of the shaft angle during torque control. The rotor length index is 1, which limits the rotor stack length and reduces inertia for responsive acceleration. The assembly is supplied without a brake, minimizing overall mass and allowing the drive to control deceleration without the added resistance of a mechanical holding device.
The encoder uses a single-turn optical design to provide position information within one mechanical revolution. Its specific implementation is the EPC 15T variant, which is compatible with the corresponding Kollmorgen drive feedback interface. Mechanical torque is transferred through a shaft with a keyway, providing positive engagement with pulleys, gears, or keyed couplings without relying on friction alone. Thermal dissipation and current density follow winding designation G, which identifies a coil set intended for moderate-voltage drives. This winding allows the motor to deliver continuous torque through its self-cooled housing without requiring a separate forced-air system. The compact frame, low-inertia rotor, and direct shaft connection support rapid changes in speed while keeping the motor suitable for installations with limited space.
