M-605-D-B1-B3 Kollmorgen
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The Kollmorgen M-605-D-B1-B3 servo motor is part of the M Goldline Servo Motors series and has a rated power of 4700 W with a supply voltage of 230 VAC. It features a continuous stall torque of 30.9 N-m and a peak stall torque of 86.8 N-m, with a brake torque of 48 N-m and an IP65 rating for protection.
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Product Description:
The M-605-D-B1-B3 is a brushless servo motor produced by Kollmorgen for the M Goldline Servo Motors series. Designed for positioning and velocity control in automated machinery, the unit converts drive current into precise rotary motion for gantries, packaging axes, and material-handling equipment. A permanent-magnet rotor, resolver feedback interface, and sealed housing allow the motor to integrate with Kollmorgen digital drives while maintaining consistent torque delivery during demanding duty cycles. The common mounting pattern supports installation in machine frames designed for compatible motors from the same series.
Under continuous load, the motor delivers 30.9 N·m of torque while drawing 15 A rms from the drive. This steady output is supported by a winding resistance of 0.84 Ω, which limits copper loss, and an inductance of 22 mH, which influences current rise time and control-loop stability. The three-phase stator operates from a 230 VAC bus. At that voltage, the windings generate a back electromotive force of 124.5 V rms/krpm, so the drive must accommodate voltage generated during rapid deceleration. Continuous mechanical power reaches 4,700 W, supporting axes that operate with elevated duty cycles. An integral 24 VDC holding brake applies 48 N·m of torque to secure the shaft when power is removed.
For short intervals, the motor withstands a peak torque of 86.8 N·m while the drive supplies up to 44.3 A rms without demagnetizing the rotor. The nominal operating torque is 28.05 N·m, balancing thermal rise with sustained machine output. The enclosure has an IP65 protection rating, which prevents dust ingress and shields the windings and bearings from low-pressure water jets. A rotor inertia of 0.0141 kg·m² supports responsive acceleration and deceleration during positioning cycles. The torque constant is 2.06 N·m/A rms, allowing the controller to calculate motor torque from the applied phase current. Resolver feedback provides rotor position data to the drive, supporting closed-loop control of speed, torque, and shaft position throughout operation.
