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M-607-B-A3 Kollmorgen

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The Kollmorgen M-607-B-A3 is a servo motor from the M Goldline Servo Motors series with a rated power of 11.2 kW and a rated speed of 3050 RPM. It has a stall torque of 44.6 N-m at 25 degrees Celsius and a peak torque of 126.0 N-m. The motor weighs 37.8 kg and features a back EMF constant of 67.7 Vrms per kRPM.

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Product Description:

The M-607-B-A3 servo motor is manufactured by Kollmorgen within the M Goldline Servo Motors series. This brushless permanent-magnet rotary actuator is intended for closed-loop position and velocity control in material handling equipment, machine tools, and automated assembly stations. By integrating with a suitable drive, it converts commanded current into precise torque for dynamic axis movement.

At its design point, the motor reaches a rated speed of 3050 rpm, producing 11.2 kW of mechanical power while drawing a continuous phase current of 37.5 Arms. The torque constant of 1.12 N-m/Arms links commanded current to delivered torque, and the low copper path resistance of 0.140 Ohms minimizes I²R losses during steady operation. A back-electromotive-force constant of 67.7 Vrms/kRPM indicates the voltage the drive must generate as speed increases, while the 3.8 mH phase inductance filters switched-mode drive ripple. Under static conditions, the armature can withstand 44.6 N-m of stall torque at 25 °C, or 42.0 N-m when the winding temperature rises to 40 °C. Four M10 fasteners fit a 165.00 mm bolt circle through 11.00 mm diameter holes, providing a rigid flange interface.

For short transients, the motor can deliver a peak torque of 126.0 N-m when the drive supplies up to 118.6 Arms per phase. The 0.02117 kg-m² rotor inertia balances rapid acceleration with load stability, and the winding thermal time constant of 38 min means overload energy disperses slowly. Overall assembly mass is 37.8 kg, which is relevant for gantry axes where moving weight affects cycle time. The flange mounting geometry supports concentric alignment, while the back-EMF and inductance values help the controller set current-loop bandwidths without saturation. During indexing, positioning, and continuous-duty motion, the drive must stay within the stated current, torque, and thermal limits.

Back Emf Constant
67.7 Vrms/kRPM
Continuous Line Current
37.5 Arms
Dc Resistance
0.140 Ohms
Inductance
3.8 mH
Motor Weight
37.8 kg
Mounting Bolt Circle
165.00 mm
Mounting Hole Diameter
11.00 mm
Peak Line Current
118.6 Arms
Peak Torque
126.0 N-m
Rated Power
11.2 kW
Rated Speed
3050 RPM
Rotor Inertia
0.02117 kg-m2
Stall Torque At 25 C
44.6 N-m
Stall Torque At 40 C
42.0 N-m
Thermal Time Constant
38 min
Torque Constant
1.12 N-m/Arms
  • M607BA3
  • M607-B-A3
  • M-67-B-A3

Frequently Asked Questions about M-607-B-A3:

Q: What is the continuous line current rating of the M-607-B-A3 servo motor?

A: The M-607-B-A3 servo motor has a continuous line current of 37.5 Arms.

Q: What is the rated power of the M-607-B-A3 from Kollmorgen?

A: The rated power output for this servo motor is 11.2 kW.

Q: What is the mounting bolt circle diameter for the M-607-B-A3 servo motor?

A: The mounting bolt circle for the M-607-B-A3 measures 165.00 mm.

Q: What is the peak torque specification for the M-607-B-A3 motor?

A: This motor provides a peak torque of 126.0 N-m.

Q: What is the rated speed of the M-607-B-A3 servo motor?

A: The rated speed for the M-607-B-A3 is 3050 RPM.


Internal Product Review

  • ‘‘The M-607-B-A3 is a Kollmorgen M Goldline servo motor with 11.2 kW rated power and 3050 RPM rated speed. Continuous output remains impressive with 44.6 N-m stall torque at 25 C and 126.0 N-m peak torque, supporting demanding motion profiles. A 38 min thermal time constant supports steady operation, making the motor a strong choice for high-performance servo applications.’’

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