8LWA13.B9045D000-0 B & R Automation
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The B & R Automation 8LWA13.B9045D000-0 is a high torque servo motor from the 8LWA High Torque Servo Motors series. It features a smooth shaft design, self-cooling method, and an IP64 rating for protection. The motor supports a nominal speed of 4500 rpm and uses an EnDat 2.2 encoder system with a multi-turn resolution of 19 single-turn and 12 multi-turn bits.
Internal Product Review
The 8LWA13.B9045D000-0 is a B & R Automation high torque servo motor with self-cooling and an IP64 rating. The EnDat 2.2 encoder system and 19/12-bit resolution support accurate feedback and stable motion performance. Nominal speed at 4500 rpm makes this unit a strong choice for responsive servo applications.
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Product Description:
The 8LWA13.B9045D000-0 is a high-torque servo motor produced by B&R Automation as part of the 8LWA High Torque Servo Motors series. It delivers rotary motion for automation axes that require elevated torque within a compact frame, including indexing, positioning, and material-handling applications. The motor has size code 1 and length code 3, and its integrated encoder supplies absolute position feedback for closed-loop control without requiring a separate feedback device.
The motor reaches a nominal speed of 4500 rpm, supporting direct coupling to suitable gearboxes or driven loads. Thermal energy is removed through self-cooling, so no external fan or liquid cooling circuit is needed. The power and feedback cables exit through an angled swivel and connect through the built-in double angular connector, reducing cable stress in installations with limited routing space. The housing has an ingress protection rating of IP64, protecting the stator from dust and water spray. The integrated encoder has a precision window of 120 arcminutes, supporting accurate position measurement across the motor’s operating range. Its single-turn and multi-turn counters provide 19/12 bits of native resolution to the drive controller for precise position tracking.
The feedback interface uses the EnDat 2.2 protocol, enabling bidirectional communication for diagnostic information and electronic motor data. The motor can tolerate mechanical shocks of up to 2000 m/s² during operation, making it suitable for high-acceleration indexing tables and other dynamic machinery. Its multi-turn encoder tracks absolute position across 4,096 revolutions without battery support, allowing position information to remain available after a power cycle. Output torque is transmitted through a smooth shaft, which accommodates clamping hubs and eliminates stress concentrations associated with a keyway. The motor does not include a holding brake, so the drive must provide servo torque when the rotor must remain stationary. The shaft also lacks an oil seal, so external sealing is necessary when the motor is installed near pressurized lubricants or other fluids that could reach the shaft opening.
