8JSA33.E9045D200-0 by B & R Automation

B&R Automation's 8JSA33.E9045D200-0 is a rotary synchronous motor from the 8JS Synchronous Motors series. Designed for integration with an AC drive platform, the unit supplies torque and position feedback for closed-loop motion tasks such as packaging, pick-and-place, and indexing axes. Its internal encoder communicates absolute position data to the controller, while the integrated holding brake keeps the shaft in place when power is removed. This arrangement supports repeatable starts, stops, and holding functions in compact motion systems where cable routing space is limited.

The motor runs at a nominal speed of 4500 rpm, giving it a mid-range velocity that matches typical belt or planetary gear ratios. A holding brake rated at 2.5 Nm provides static torque for light vertical loads and helps prevent back-driving when the axis is idle. Position feedback comes from an inductive EnDat 2.1 encoder with a base resolution of 18/12-bit single-turn and multi-turn data, allowing consistent sub-degree positioning across the motion profile. Communication uses the Inductive EnDat 2.1 protocol, and thermal losses are removed through a self-cooling housing, so no external fan or liquid circuit is required.

For machine layout, the power and feedback cabling exit through an angled swivel connector, allowing tighter bends inside electrical cabinets and reducing strain at the connection point. Installation to a gearbox or machine frame is direct through flange mounting, and the size 3, length 3 housing keeps overall depth compact. A smooth shaft supports coupling to clamping hubs, and the encoder maintains positional fidelity within ±280 arcsec across the available multi-turn range. The standard brake design and the lack of an oil seal keep the mechanical arrangement simple for enclosed production equipment.