Product Description:

The SM 35L-4000 is a synchronous servo motor produced by Kollmorgen for the 6SM Synchronous Servo Motors series. It is built for closed-loop motion axes that require consistent torque and high positional accuracy, such as pick-and-place stations, indexing tables, and light conveyor lines. By converting electrical input into tightly regulated mechanical rotation, the motor forms the actuation layer between a drive controller and the mechanical load.

Designed for continuous operation, the motor carries a duty classification of S1, so its thermal design supports indefinite operation at rated conditions without required cooling pauses. A mechanical output of 0.56 kW indicates the maximum continuous power that the shaft can deliver to downstream gear stages or pulleys. The motor provides a stall torque of 1.4 Nm, allowing it to resist a load while the shaft is blocked and energized. The back electromotive force gradient is 37 mV/rpm; this voltage constant can be used to calculate regeneration levels and select suitable braking circuits. These operating values help determine whether the motor and connected drive can support the torque, speed, and thermal demands of a motion axis.

The housing meets IP64, blocking dust ingress and protecting the motor against water splashing from multiple directions. The motor reaches a rated speed of 4000 rpm, supporting rapid movement when the load inertia and drive settings are properly matched. During a locked-rotor condition, the stall current is limited to 4.3 A, which assists with fuse selection and drive current-limit settings. With a mass of 4.28 kg, the motor can be mounted on compact linear stages or rotary actuators without adding excessive structural load. Its combination of continuous-duty operation, stall capability, and moderate mass supports responsive acceleration in space-constrained automation equipment.