Product Description:

The M-805-A-A3-B3 servo motor is manufactured by Kollmorgen as part of the M Goldline Servo Motors series. It is a three-phase, permanent-magnet actuator meant for closed-loop control of industrial axes such as press feeds, extruder screws, and indexing tables. By converting the drive’s sinusoidal AC supply into mechanical rotation, the unit allows precise velocity and position regulation within compact machinery envelopes often found in automated production cells. Its motor design supports responsive torque production and stable motion control in systems that must follow commanded position changes with minimal lag.

Under continuous load, the motor produces 78.6 N-m of stall torque while drawing 35 Arms, and it sustains a working torque of 68.75 N-m without overheating. The 13 mH phase inductance together with 0.23 Ω resistance affects current rise time and shapes how the controller responds to command changes. A torque constant of 2.252 N-m/Arms links commanded current to output torque, and a back-EMF constant of 136.2 Vrms/kRPM indicates the generated voltage during regeneration. With rotor inertia at 0.0599 kg·m², the shaft can reach a maximum speed of 1500 RPM while helping smooth speed changes caused by varying mechanical loads.

In transient conditions, the frame withstands 232.1 N-m of peak stall torque and momentarily accepts 108.5 Arms to achieve rapid acceleration. An integrated holding brake adds 48 N-m of static torque and uses a 24 VDC coil that draws 1.27 A during actuation, allowing the axis to remain secured when drive power is removed. There is no front shaft seal, so the motor is better suited to installations where the shaft area is kept dry or shielded from abrasive contamination. This arrangement is useful on vertical or suspended loads where controlled stopping and stationary holding are required between motion cycles.