MTC7206B1-R1C1-028 Kollmorgen
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The Kollmorgen MTC7206B1-R1C1-028 is part of the MTC Servo Motors series and delivers a rated power of 9.8 kW with a continuous stall torque of 50.4 N-m at 40 C. The motor features a continuous line current of 18.3 Amps RMS, a peak line current of 64.7 Amps RMS, and an inductance of 18.5 mH. It also has an overall length of 300.5 mm and a brake voltage of 24 VDC.
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Product Description:
The MTC7206B1-R1C1-028 is a servo motor built by Kollmorgen for the MTC Servo Motors series. As a brushless rotary actuator, it provides closed-loop position and velocity control for industrial automation axes that require high torque density and precise electrical commutation. Electronic commutation eliminates brush wear and supports consistent torque production across repeated motion cycles. The motor is suitable for applications such as indexing equipment, material-handling systems, packaging machinery, and other automated equipment that requires controlled rotary movement.
This model delivers 50.4 N-m of continuous stall torque at 40 °C while drawing a continuous line current of 18.3 A RMS. A thermal resistance of 0.248 °C/W supports heat transfer from the windings, while an inductance of 18.5 mH moderates the rate of current rise. The motor has a rated mechanical output of 9.8 kW and uses an eight-pole electromagnetic design. Its back EMF constant is 166.5 V RMS/krpm, providing the drive with the electrical characteristics needed for speed-dependent voltage control. Electrical losses are limited by a DC resistance of 0.553 Ω, and the torque constant is 2.75 N-m/A RMS. The housing has an overall length of 300.5 mm, allowing the motor to provide substantial output without requiring excessive axial space. Viscous damping is 0.281 N-m/krpm, which characterizes the motor’s speed-related friction behavior.
For short acceleration and load-change events, the motor can produce a peak torque of 152.3 N-m when the drive supplies a peak line current of 64.7 A RMS. The rotor has a mass moment of inertia of 0.0126 kg-m², supporting responsive acceleration and deceleration in motion-control applications. Thermal energy is absorbed over a time constant of 72 min, allowing winding temperature to change gradually during extended operating cycles. An optional holding brake operates from a 24 VDC supply and can restrain the shaft when drive power is removed. This brake arrangement is useful for vertical or gravity-loaded axes that require mechanical holding at rest. The connected servo drive must accommodate the motor’s continuous and peak electrical demands while regulating current during acceleration, steady operation, and controlled stopping.
