AKM21C-ANB22-00 Kollmorgen
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The Kollmorgen AKM21C-ANB22-00 is part of the AKM Synchronous Servo Motors series and features a 24V holding brake with a smooth shaft. This motor offers a flange configuration with IEC accuracy N, a frame dimension of 58mm, and comes with 2 SpeedTec Ready connectors. Its feedback system uses a Comcoder with 2048 lines per revolution and supports single turn optical feedback.
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Product Description:
The AKM21C-ANB22-00 motor is manufactured by Kollmorgen and belongs to the AKM Synchronous Servo Motors series. Within the AKM product family, it serves as a compact servo device for precise position and velocity regulation in automated machinery. Its frame, electrical winding, and feedback configuration allow machine builders to integrate closed-loop motion control into packaging lines, laboratory instruments, and small assembly robots without adding excessive mass or occupying substantial space. By accepting drive currents and returning incremental position data, the unit helps controllers maintain repeatable cycles under variable loads.
An integrated 24 V holding brake locks the rotor when power is removed, preventing axis drift on vertical or suspended loads. Power and feedback are routed through two SpeedTec-ready connectors, which allow quick, keyed cable engagement during installation. The encoder stage is a Comcoder that delivers 2048 lines/rev of incremental resolution. This count produces 8192 quadrature edges per revolution, giving the drive fine interpolation capability for accurate motion control. The single-turn optical sensing element provides shaft-position feedback over each revolution without multi-turn position retention, while the high edge count supports smooth low-speed operation and precise response to changing commands.
For mechanical fit, the motor uses an IEC flange with accuracy N, and its 58 mm square frame fits planetary gearheads and couplings sized for compact servo applications. The rotor length index is 1, pairing a short magnetic stack with winding code C to balance inertia against peak torque. Motion is transmitted through a smooth shaft, eliminating the stress concentrations associated with a keyway in high-speed applications. The electronic interface uses the EPC 15T feedback type, matching Kollmorgen drives that accept this signal protocol. Its compact housing supports installation in machinery with limited space, while the short rotor configuration helps the motor respond rapidly during frequent acceleration and deceleration cycles.
