Product Description:

The SM 45-M-3000 is a synchronous servo motor produced by Kollmorgen within the 6SM Synchronous Servo Motors series. As a compact rotary actuator, the unit converts drive current into controlled shaft torque for positioning and velocity loops in industrial automation machinery such as pick-and-place axes and small conveyors. Its permanent-magnet design works with digital drives to provide precise closed-loop performance during repetitive motion, speed regulation, and controlled acceleration.

The motor draws a continuous current of 1.3 A at its terminals while delivering a rated mechanical output of 0.5 kW. Under this load, the shaft turns at 3000 rpm and produces 1.6 Nm of torque. For acceleration or brief load surges, the inverter may supply up to 5.6 A without exceeding the motor’s thermal limits. The standstill torque is 1.7 Nm, allowing the axis to resist movement when the speed command is zero and the drive continues to apply current. A 400 V supply bus feeds the stator through windings with an inductance of 99.0 mH and a resistance of 34.0 Ω, which affect current rise time, electrical losses, and drive selection.

The permitted radial load is 370 N, helping protect the bearings from premature wear when the motor drives a belt, pulley, or gear transmission. Rotor inertia is 2.1 kg·cm², so the servo can reverse direction quickly while the controller manages acceleration and overshoot. Heat buildup follows a thermal time constant of 20 minutes, which helps the controller manage operating cycles under changing loads. The electromagnetic design provides a 1.36 Nm/A torque constant and a back EMF of 116 V/1000 rpm, supporting accurate parameter entry for compatible Kollmorgen drives. The enclosure meets IP65, preventing dust and water jets from entering the housing, and the assembly weighs 5.5 kg, allowing wall or flange mounting without heavy structural reinforcement.