Product Description:

The AM237S-0021 three-phase synchronous servo motor sits within Beckhoff’s AM Synchronous Servo Motors series. As a compact rotary actuator, the unit converts drive output from a matched servo inverter into precise torque and speed for packaging stations, material-handling axes, and tooling spindles on automated production lines. Tight coupling between electrical excitation and the permanent-magnet rotor allows quick response to command changes, giving the system a controllable source of motion that integrates easily with decentralized EtherCAT drive architectures. This operating principle supports accurate acceleration, deceleration, and speed regulation during repetitive machine cycles.

The motor uses a 194 mm square flange, allowing direct mounting on gearboxes or machine frames without adapter plates. When energized continuously, the motor can resist loads up to 70 Nm at standstill, so vertical axes remain stable during process pauses and dwell periods. The electromagnetic brake coil is driven by a control supply of 24 VDC, and separating the brake circuit from the power winding supports independent brake control. A smooth shaft profile eliminates keyways, supporting backlash-free clamping hubs or shrink-disk couplings where high centering accuracy is required.

Position feedback is supplied by an OCT multi-turn encoder that returns absolute position data across several revolutions, reducing homing time after power cycles. During power-off states, a mechanically integrated 24 V holding brake locks the shaft so external lifting cylinders or Z-axes do not drift. The motor is part of the AM Synchronous Servo Motors platform and is also cataloged under the broader Synchronous Servomotors product family. By retaining the same winding connectors and thermal sensors used on other models, Beckhoff supports standardized cabling and unified drive parameter sets across mixed-size machines.