8KSL94.ee015ff00-h | B&R 51.8 kW High-Torque Servo Motor

What Makes the 8KSL94.ee015ff00-h Servo Motor a Reliable Choice?

Selecting a servo motor that maintains torque under peak loads is a common engineering challenge. The B&R 8KSL94.ee015ff00-h addresses this need with a permanent-magnet synchronous design that delivers high torque density and dynamic performance. As part of the 8KS series, this motor is engineered for demanding applications in general machine manufacturing.

Key Specifications of the 8KSL94.ee015ff00-h

• Nominal power: 51,836 W at 1500 rpm
• Nominal torque: 330 Nm continuous
• Stall torque: 405 Nm for holding applications
• Maximum torque: 875 Nm for peak demands
• Nominal current: 104 A; stall current 127 A
• Maximum current: 305 A
• Maximum speed: 3600 rpm
• Torque constant: 3.28 Nm/A
• Voltage constant: 225 V/1000 rpm
• Stator resistance: 0.08 Ohm; inductance 3.7 mH
• Moment of inertia: 1800 kg·cm²
• Mass: 255 kg without brake
• Cooling: External axial fan, IC 416
• Insulation: Class F, max winding 155°C
• Protection: IP54
• Mounting: IM B5 or IM B35 per EN 60034-7
• Feedback: Resolver, EnDat 2.1 or 2.2

Applications and Integration

The 8KSL94.ee015ff00-h excels in applications requiring high torque at moderate speeds. For instance, it suits plastic injection molding machines where precise pressure control is critical. Similarly, metal forming presses benefit from its 875 Nm peak torque. Furthermore, test benches and winders rely on its stable performance across the speed range.

Integration with ACOPOS servo drives enables full system functionality. The motor supports STO safety functions when paired with these drives. Encoders for functional safety are available, enhancing system reliability. For fieldbus networks, an external gateway or connection module may be required; consult the supplier for precise matching.

Installation and Maintenance

Proper installation ensures optimal performance. Mount the motor horizontally using IM B5 or IM B35 flanges. Ensure the cooling fan receives unobstructed airflow. Verify that radial and axial forces remain within permissible limits per the datasheet. For maintenance, inspect the fan module and bearings periodically. The bearing life LH10 is rated at 20,000 hours. Operating within the specified ambient temperature range of 0 to +40°C maintains reliability. The IP54 rating protects against dust and water splashes, but avoid direct high-pressure cleaning.