Product Description:

The 32.SM.201-34BJ is a frame-size 32 synchronous servo motor produced by KEB within its SM Synchronous Servo Motors series. As a permanent-magnet rotary actuator, the unit converts controlled three-phase power into precise shaft motion for positioning or speed regulation tasks in automated machinery. The motor includes an electromagnetic holding brake and a matched winding set, so it can be connected directly to KEB inverters for closed-loop control. Because it is a synchronous servo design, it is suited for axes that require accurate speed response and repeatable positioning during short or frequent motion cycles. This arrangement supports precise starting, stopping, and load holding in packaging, material-handling, and small conveyor systems.

Under continuous operation, the motor delivers 0.35 kW of mechanical power at a rated shaft speed of 3000 rpm. At this operating point, it produces a nominal torque of 1.15 Nm while drawing 0.95 A from a three-phase supply rated at 400 V. The back electromotive force follows a constant of 110.0 V/1000 rpm, which helps the drive estimate velocity without external sensors. A phase inductance of 61.0 mH and a winding resistance of 35.5 Ω affect the electrical time constant and influence current-loop bandwidth during dynamic servo moves.

The rotor’s mechanical responsiveness is set by an inertia of 0.70 kgcm², enabling quick speed ramps with modest drive demand. For static load conditions, the electromagnetic path can sustain a stall torque of 1.3 Nm while drawing 1.0 A. The spring-applied brake provides a holding torque of 4.5 Nm, operates on a 24 V supply at 0.5 A, is rated for 10000 rpm peripheral speed, and adds 0.35 kg to the motor. This brake helps the axis remain in position when input power is removed or when the machine is stopped between motion cycles.