Product Description:

The M-805-A-B3 is a permanent-magnet servo motor produced by Kollmorgen within the M Goldline Servo Motors series. Designed for closed-loop motion axes in presses, extruders, and coordinated gantry drives, the unit converts electrical input from a matched amplifier into rotary mechanical output. Its construction supports precision positioning and velocity control, making it suitable for high-demand industrial automation tasks that require repeatable torque delivery and accurate speed regulation. The motor is intended for systems in which the amplifier closes the current, speed, and position loops to keep axis response consistent under changing load conditions.

It delivers a continuous stall torque of 83.4 N-m at 25 °C, allowing the shaft to hold load without movement under rated thermal conditions. At the rated speed of 1500 rpm, the motor can generate up to 10.8 kW of mechanical power, which suits medium-frame machinery that needs sustained output. Continuous operation draws about 35 A RMS from the drive, while the winding exhibits a back electromotive force of 136 V RMS/krpm, which relates voltage rise to motor speed and helps match the motor to a compatible amplifier. That electrical behavior supports stable current control as speed increases and keeps thermal loading predictable during normal duty cycles.

For transient events, the motor can reach a peak torque of 232 N-m when supplied with up to 109 A RMS, giving additional headroom for short acceleration periods beyond rated load. The internally mounted brake secures the shaft with 48.0 N-m of holding torque and is energized at 24 VDC; it extends the overall length by 56.4 mm and is useful when the axis must remain stationary after power is removed. The motor uses a six-pole design, has a torque sensitivity of 2.25 N-m/A RMS, a phase inductance of 13 mH, and a winding resistance of 0.230 Ω, which support smooth torque production and responsive current buildup. At 40 °C, the continuous stall torque drops to 78.6 N-m, and operation remains within the permissible 250 V RMS line-to-line limit.