Product Description:

The MT308B1-R1C1 is a brushless servo motor produced by Kollmorgen for the MTC Servo Motors series. It is intended for closed-loop industrial automation axes that demand rapid acceleration and precise positioning. The motor supplies shaft power to gearboxes, ball screws, or direct-drive couplings in packaging, pick-and-place, and electronic assembly machines.

This model draws a continuous line current of 5.16 A, indicating the steady-state electrical load that the drive must deliver under thermal equilibrium. When the stator is held motionless at 25 °C, it can generate 5.10 Nm of stall torque, allowing the machine to resist external forces without motion. Rotor speed can be commanded up to 3000 rpm, so the motor can handle mid-range process lines without mechanical speed increasers. For short bursts, the inverter may supply a peak line current of 24.5 A, supporting rapid indexing or emergency stops. Continuous mechanical output at rated conditions is 1.28 kW, balancing torque production and thermal limits for standard duty cycles. An 8-pole rotor lowers cogging and improves control resolution when paired with high-pulse feedback devices.

The motor withstands transient load spikes by producing up to 18.73 Nm of peak torque, providing the extra force needed to overcome static friction or tool engagement. Its thermal mass causes the winding temperature rise to follow a time constant of 33 min, so momentary overloads have a delayed effect on insulation life. A motor constant of 0.574 N-m/√W relates electrical input to mechanical torque and supports calculations of continuous power dissipation. The stall torque at 40 °C is 4.79 Nm, while the theoretical acceleration is 107091 rad/s². Static friction is 0.0781 N-m, and viscous damping is 0.025 N-m/krpm. Thermal resistance at stall is 0.786 °C/W, which indicates how readily winding heat transfers to the surrounding motor structure.