Product Description:

Kollmorgen designs the M-203-A-23, an AC servo motor in the M Goldline Servo Motors series. This model provides precise torque and speed control for positioning tables, pick-and-place heads, and other motion axes in automated machinery. It converts electrical commands from a compatible drive into rotor movement while supplying continuous feedback for closed-loop regulation.

At standstill the motor can deliver a continuous torque of 2.25 N-m while drawing only 1.7 Arms; these paired values indicate the sustained load it can hold without overheating. The thermal loading associated with that current is limited by a copper winding resistance of 17.7 Ω and an inductance of 185 mH, parameters that shape current rise time and inverter tuning. A back electromotive-force constant of 79.5 Vrms/kRPM and a torque constant of 1.315 N-m/Arms establish the voltage and current needed to reach the operating point where mechanical output equals 0.60 kW. These ratings apply while the shaft supplies the rated torque of 2.29 N-m and remain valid across duty cycles that stay within the continuous thermal envelope.

Duty peaks are managed with a torque reserve that rises to 7.5 N-m while the drive can momentarily supply 6 Arms. The laminated rotor carries a small inertia of 0.000836 kg-m², allowing rapid acceleration to the maximum mechanical speed of 2500 RPM without excessive servo overshoot. Four magnetic poles interact with the stator windings, and the overall motor length of 275.8 mm simplifies mounting in compact machines. Heat generated during overload events dissipates over a thermal time constant of 18 min, so short bursts do not push the windings beyond their insulation rating. The assembly weighs 5 kg, which supports rigid installation yet keeps moving mass low for gantry and robot joints.