Product Description:

The CKM20A-AKCN2-00 is a brushless AC servo motor manufactured by Kollmorgen for the CKM Servo Motors series. The unit is intended for motion axes that require fast acceleration, repeatable speed regulation, and accurate torque delivery in industrial automation cells, packaging lines, and material-handling gantries. By combining permanent-magnet technology with a digital commutating encoder, this motor acts as the electromechanical actuator that converts drive commands into controlled rotary motion.

During continuous operation, the motor is energized from a 220 VAC supply and delivers a mechanical output of 2.0 kW. At its nominal operating point, it draws 9.3 A, spins at 3000 rpm, and supplies 6.37 Nm of shaft torque, with a torque constant of 0.74 Nm/A that supports current-loop tuning. The windings have an armature resistance of 0.40 Ω and an inductance of 2.4 mH, which affect the electrical time constants and servo bandwidth. When rapid moves are commanded, the drive may supply up to 27.9 A, providing the headroom needed to overcome inertia and friction without losing position. A maximum mechanical speed of 3700 rpm is available for short bursts, helping reduce process cycle times. The rotor inertia is 8.88 kg·cm², balancing responsiveness with load-matching requirements.

Peak torque reaches 19.11 Nm, enabling quick acceleration of moderate-inertia loads before thermal limits are approached. The enclosure is rated at IP65, so it resists dust ingress and low-pressure water jets commonly found on factory floors. The motor has a mass of 8.08 kg, which contributes to structural damping while allowing practical installation and secure mounting. Position and commutation data are supplied by a 2500 PPR commutating encoder, giving the control drive fine resolution for smooth low-speed motion and precise electronic gearing.