Product Description:

The AKM21C-CKMN22-00 is a brushless servo motor manufactured by Kollmorgen. Intended for precision rotary axes, the unit delivers tightly controlled torque and speed so that packaging heads, laboratory pipettors, and miniature gantry systems can follow commanded motion profiles with minimal lag. When paired with a digital drive, its compact electromagnetic core converts current loops into rapid acceleration, helping restricted machine layouts maintain consistent positioning accuracy during short, repetitive cycles. That response is useful in small automation platforms where frequent starts, stops, and reversals occur within a limited installation envelope.

The motor uses Alternative Flange Variant C, a mounting face that aligns with specialized gearboxes without adapter plates. Its square housing measures 58 mm across the frame, helping multiple axes fit closely on a machine base where spacing is limited. Internally, the stator uses winding designation C, a coil arrangement suited to medium-voltage operation and balanced thermal rise during continuous duty. Dynamic mass stays low because the rotor uses Rotor length index 1, the shortest stack in this frame size, which helps reduce inertia and sharpen speed response. The unit is an AKM Synchronous Servo Motor and follows the standard feedback and connector layout used for this motor line.

The output shaft has an open keyway, which provides a secure interface to a keyed coupling without additional machining. For applications that already use mechanical holding devices, the motor is supplied without a brake, which removes weight and shortens the package. This arrangement leaves more room around the motor body for couplings and nearby components in dense machine sections. It also suits systems where standstill retention is handled elsewhere in the drive train.