MTC704B1-F1A1 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen MTC704B1-F1A1 is a servo motor that is part of the MTC Servo Motors series. It provides a rated power of 5.7 kW and delivers continuous torque of 33.3 N-m at 25°C. The motor features a peak torque of 90.6 N-m, 8 poles, and a back EMF of 100 VRMS per krpm.
Internal Product Review
The MTC704B1-F1A1 is a highly capable Kollmorgen servo motor with 5.7 kW rated power and 33.3 N-m continuous torque at 25°C. The 8-pole design and 100 VRMS/krpm back EMF contribute to smooth servo response and dependable speed control. A 90.6 N-m peak torque rating makes the unit an excellent fit for demanding motion applications.
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Product Description:
The MTC704B1-F1A1 is a brushless servo motor manufactured by Kollmorgen for the MTC Servo Motors series. Within an automation cell, this motor converts drive commands into accurate rotary motion so machine axes maintain the position and velocity tolerances required for coordinated pick-and-place, packaging, and metal-cutting tasks. Kollmorgen integrates a permanent-magnet rotor, stator windings, and a feedback interface so the drive can read the rotor position while supplying current proportional to the demanded torque.
At 25 °C, the motor delivers a continuous shaft torque of 33.3 N·m; this is the steady mechanical output the motor can supply without exceeding its winding temperature limit. Supplying that load requires a continuous phase current of 19.2 A RMS, and the motor can accept short bursts up to a peak line current of 67.1 A RMS for rapid acceleration. When pushed to its electrical and thermal limit, it produces a peak torque of 90.6 N·m, giving reserve capacity for overcoming static loads or inertia mismatches. The rated mechanical power reaches 5.7 kW, indicating how much work the motor can perform at its rated speed and torque point. Continuous torque drops slightly to 31.3 N·m at an ambient temperature of 40 °C, showing how enclosure airflow influences sustained output. Additional characteristics include a DC resistance of 0.416 Ω and eight magnetic poles, so the drive must produce a field sequence with the correct electrical frequency.
The rotor’s mass moment of inertia is only 0.0078 kg·m², enabling fast directional changes with limited drive-current overshoot. A back electromotive force constant of 100 V RMS/krpm helps predict the generated voltage during regenerative operation, while the 9.7 mH phase inductance tempers current ripple at high PWM frequencies. Thermal management is supported by a stall thermal resistance of 0.301 °C/W and a 60 min thermal time constant, meaning the winding temperature rises gradually under load. Static friction is 0.353 N·m, and brake engagement is controlled with 24 V DC. The torque sensitivity is 1.65 N·m/A RMS, allowing commanded current to correspond directly with the torque produced by the motor.
