Product Description:

The M-605-A-B1 is a brushless AC servo motor built by Kollmorgen for the M Goldline Servo Motors series. Serving as a direct-drive actuator, it provides closed-loop rotary motion for indexing tables, packaging lines, and general automation stages where rapid acceleration and high positioning accuracy are required. Its brushless construction supports smooth response during frequent starts, stops, and reversals in coordinated motion systems.

At 25 °C, the motor sustains a continuous torque of 31.9 N-m, while thermal loading at 40 °C reduces that figure slightly to 30.1 N-m. The mechanical output can be held at a rated speed of 2150 RPM, combining with a rated mechanical power of 6.0 kW to match mid-frame industrial axes. Electrical conversion characteristics show a back electromotive force constant of 95.8 VRMS/kRPM, an inductance of 13.3 mH, and a DC phase resistance of 0.508 Ω; together these values shape drive selection and current loop bandwidth. Torque per ampere is set by a sensitivity of 1.59 N-m/A RMS, and the six-pole rotor geometry supports smooth sinusoidal commutation. Thermal design is quantified by a resistance of 0.28 °C/W and a time constant of 33 minutes, allowing predictable winding temperatures during duty-cycle changes.

Peak operating demands are served by a continuous line current of 19.0 A RMS and short-term excursions up to 57.4 A RMS, enabling the drive to reach a peak torque of 86.4 N-m for rapid indexing or shock loads. The rotating mass is limited by a rotor inertia of 0.01406 kg·m², which keeps settling times low without compromising positional stability. With a total mass of 28.7 kg, the housing provides the thermal mass needed to absorb transient losses while remaining manageable for flange mounting. The thermal package works with the motor's thermal characteristics so rated output can be delivered continuously when the ambient temperature stays within standard cabinet conditions.