Product Description:

The AM237M-0020 belongs to the AM Synchronous Servo Motors series from Beckhoff. It is a compact rotary servo motor used to generate closed-loop motion in packaging lines, pick-and-place heads, and other automated axes that need precise velocity and position control. The unit is supplied without a holding brake, and an OCT multi-turn encoder is integrated for absolute feedback so the controller can read position after power cycles without external sensors. This arrangement supports synchronized motion on compact axes where repeatable starts, stops, and position recovery are important.

During continuous operation, the motor reaches a rated speed of 6000 rpm while delivering 0.8 Nm of torque from its six-pole rotor. Electrical loading is moderate, with 1.5 A required at nominal load and a peak current of 6.5 A available for short accelerations. The motor has a torque constant of 0.62 Nm/A and a voltage constant of 38 V per 1000 rpm, while the copper windings present 12.8 Ω of resistance and 21 mH of inductance. These electrical values influence current ripple and the drive bandwidth needed for stable control. Mechanical service limits include a permissible axial force of 90 N and a radial force of 270 N at rated speed when the motor carries belts or pinions.

The motor uses a 194 mm square flange and a smooth shaft, which simplify direct coupling to gearboxes or belt pulleys. The flange also provides a stable mounting face for accurate alignment in compact machine frames. Rotor inertia of 0.7 kg cm² supports quick response without excessive current demand, and the standstill current of 1.6 A supports a stall torque of 1 Nm when the shaft is locked. Heat rises gradually because the windings and frame share a thermal time constant of 15 min, and continuous output is 0.5 kW during steady operation. This thermal behavior allows short overload periods before winding temperature changes significantly.