Product Description:

The R34SSNT-TS-NS-NV-03 is a servo motor manufactured by Pacific Scientific and supplied within the R Servomotors series. As a permanent-magnet AC actuator, it converts drive current into precise rotary motion so that automated machinery can position loads, regulate speed profiles, and apply repeatable torque in assembly lines, indexing tables, and packaging stations. Its design suits closed-loop motion tasks where stable torque output and responsive speed control are required.

This motor can hold a continuous load at 3.2 Nm of stall torque. For brief acceleration or shock events, it can deliver up to 8.30 Nm of peak torque before current limiting occurs. The rotor’s mass moment of inertia is 0.11 kg·m²×10⁻³, which helps the drive command rapid speed changes with modest power demand. Mechanical fitment follows a 3.25-inch square frame, so the motor aligns with gearheads or flanges in the same size class. Torque density is improved by a rare earth samarium cobalt magnet set, whose high residual flux supports a shorter stator stack while maintaining magnetic field strength. Motion feedback is furnished by a Tachsyn resolver, which returns shaft position and velocity information to the controller.

The unit ships without a holding brake, so any static load must be secured by the drive or external locking hardware during power-off periods. Because there is no shaft seal, it should be installed in clean, dry enclosures to reduce the risk of contaminant ingress along the output shaft. The laminated stator stack measures 4 inches in length, and that dimension contributes to the motor’s thermal path and mid-range torque capability. Only the primary Tachsyn channel is present, with no secondary feedback device included. This arrangement simplifies wiring while placing all servo loop feedback on the single resolver channel.