Product Description:

The 8LSN55.E3030D200-0 is a precision servo actuator built by B&R Automation for the 8LS Synchronous Motors series. As a three-phase synchronous design, it delivers sinusoidal torque that works with high-resolution inverter drives. The internal designation 8LSN groups it with models that emphasize compact frames and consistent electrical parameters. In automated production cells, the motor positions tooling, conveyors, or feed screws with closed-loop accuracy, providing a direct electromechanical interface between the machine control system and the working axis. It supports dynamic indexing as well as constant-speed material-handling duties.

At a rated speed of 3000 rpm, the rotor can follow rapid trajectory commands while remaining within the motor’s thermal operating limits. Heat is managed by the self-cooling housing, while the rotor’s increased mass moment of inertia stores energy and smooths high-frequency torque peaks. Cabling exits through an angled swivel connector so the conduit can stay within the machine footprint. A standard holding brake locks the shaft whenever the drive disables power, eliminating drift on vertical axes. This passive cooling arrangement also avoids fan-related maintenance and external airflow requirements.

The mechanical package is delivered in a standard configuration that uses the middle-length magnetic stack identified by length code 5. A dedicated flange with a diameter of 142 mm is included, giving the machine builder a direct mounting surface without auxiliary brackets. Because the motor has no oil seal, the shaft passage remains unsealed and requires external protection where fluids or dust are present. The output end is a smooth shaft, allowing shrink-fit couplers or keyed hub adapters to be fitted with minimal runout. This shaft design also permits the use of clamping connections that do not require a machined keyway.