Product Description:

The 6SM 45-L-3000-G is a synchronous servo motor manufactured by Kollmorgen for the 6SM Synchronous Servo Motors series. It serves as a compact rotary actuator that links with a matched drive to regulate shaft position and speed in automated machinery such as feeders, cartoners, and small transfer stations. An integrated electromechanical brake lets machine builders lock the axis whenever control power is removed, supporting vertical loads or emergency stops without adding external clamping devices.

The continuous-duty rating includes a mechanical output of 0.91 kW, delivered at a shaft speed of 3000 rpm while drawing a phase current of 2.3 A. At that operating point, the motor supplies 2.9 Nm of torque, and short bursts can reach a peak current of 9.6 A for rapid acceleration. Six stator poles synchronize with the drive’s output waveform to establish smooth rotation, and the copper windings have a resistance of 11.9 Ω that affects steady-state thermal losses. Rotor inertia is 3.4 kg·cm², helping the motor withstand load disturbances while still responding quickly to command changes. When the shaft is stationary, the windings can accept 2.4 A of standstill current without exceeding permissible heating limits.

The power-off brake develops a static holding torque of 6.5 Nm and is activated by a 24 V DC coil that consumes 16 W and adds 1.06 kg·cm² of brake inertia to the rotating group. During index cycles, the machine can rely on a standstill torque capacity of 3.2 Nm, and momentary overload demand is supported by a torque constant of 1.36 Nm/A for predictable current-to-torque conversion. The motor has a winding inductance of 47.0 mH, which shapes current rise time and helps the drive suppress ripple. The drive can use these electrical parameters to regulate torque precisely, while the mechanical brake secures the axis whenever motion is not required.