R8AGSNF-TS-LD-NV-04 Pacific Scientific
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The Pacific Scientific R8AGSNF-TS-LD-NV-04 is a servo motor from the R Servomotors series with a continuous stall torque of 53.4 Nm and a peak torque of 109 Nm. It features a 7.5 inch square frame, stack length of 10 inches, and utilizes rare earth samarium cobalt magnets. The motor has a rated speed of 1200 RPM and a Tachsyn as its primary feedback device.
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Product Description:
Pacific Scientific’s R8AGSNF-TS-LD-NV-04 belongs to the R Servomotors series and operates as a brushless servo motor for positioning industrial loads with high torque accuracy. By translating controlled stator currents into shaft motion, it allows automation controllers to execute precise indexing, contouring, and tensioning tasks on conveyors, metal-forming presses, and vision-guided pick-and-place heads. Its responsive rotor supports indexing stations that require rapid speed changes and short settling times. The motor can also maintain controlled motion when load conditions vary during repetitive production cycles.
A continuous stall torque of 53.4 Nm allows the shaft to hold static loads without overheating. During acceleration, the electromagnetic circuit can reach a peak torque of 109 Nm, providing the short surges needed to overcome load inertia. The rotor has an inertia of 10.8 × 10⁻³ kg·m², enabling rapid speed changes while damping small disturbances. The housing uses a 7.5-inch square frame that fits common NEMA mounting arrangements. At a rated speed of 1200 rpm, the motor supplies continuous torque under the nominal bus voltage. The unit is supplied without a holding brake, so power-off position retention must be provided by the drive or an external clamp. These operating characteristics make the motor suitable for axes that alternate between stationary holding and brief acceleration periods.
The stator uses rare-earth samarium cobalt magnets, which provide high flux density and help limit thermal drift during operation. Position and speed feedback come from a Tachsyn generator that supplies an analog velocity signal to compatible legacy drives. A 10-inch axial stack depth increases the amount of active iron available for torque production and heat dissipation. The motor has a standard winding that balances resistance and inductance for pairing with compatible Pacific Scientific amplifiers. The absence of a shaft seal makes the motor better suited to clean, enclosed installations where the shaft is not exposed to liquids or heavy contamination. Omitting an integral brake reduces the motor’s overall length, while external retention equipment can secure loads when drive power is unavailable.
