8LSA57.R2030D100-3 by B & R Automation

The 8LSA57.R2030D100-3 synchronous motor is produced by B&R Automation for the 8LS Synchronous Motors series. It serves as a rotary actuator for conveyors, gantries, and pick-and-place stations where closed-loop velocity and position control are required. The 8LSA designation indicates a standard build without reinforced bearings, so it fits general-purpose motion tasks across industrial automation cells. Its operating profile suits servo axes that need repeatable movement and stable speed regulation during frequent starts and stops.

The motor uses a three-phase synchronous design, so torque is produced by a magnetized rotor driven by three sinusoidal currents. Its nominal shaft speed is 3000 rpm, allowing direct coupling to medium-speed transmissions and similar drive elements. A 142 mm flange face aligns the motor with common machine interfaces, while a positioning accuracy class of 6 arcmin supports repeatable motion on indexing and transfer axes. Rotor position is measured through resolver feedback, which tolerates electrical noise and temperature changes during operation. Product revision 3 includes an updated winding insulation arrangement. Power and feedback are routed through a single connector, and the housing mounts to the machine through a flange. Because no holding brake is included, vertical loads need external retention when power is removed.

An angled swivel cable outlet allows the plug to be rotated to match cabinet or machine entry points, which helps reduce harness strain. Cooling is provided by self-cooling with free air circulation, so the housing needs open space around it for heat dissipation. The motor uses length code 7, which places it within the longer stack options of this platform. Torque is transmitted through a shaft supplied with a key, allowing common pulleys, couplings, or gearboxes to be mounted without a custom hub. The unit does not include an oil seal, so it is better suited to machinery where liquids or lubricant migration are not expected at the shaft opening.