Product Description:

The R34JENC-TS-NS-NV-00 is a servo motor produced by Pacific Scientific within the R Servomotors series. As a brushless rotary actuator, it converts drive current into controllable torque for positioning axes, conveyors, and material-handling gantries in industrial automation cells. Its frame and mounting arrangement match common NEMA-style motor interfaces, while the C-style housing keeps the overall length short for machines with limited installation depth. This layout suits closed-loop motion systems that need repeatable acceleration and stable low-speed control.

This model can sustain a continuous stall torque of 3.2 Nm and rise to a peak of 8.30 Nm during acceleration without demagnetizing the rotor. That output comes from rare-earth samarium-cobalt magnets, which provide high flux density in a compact package. The frame is only 3.25-inch square, yet the rotor inertia is just 0.11 kg·m² × 10⁻³, which supports rapid speed changes and helps limit overshoot in servo loops. The motor is supplied without a holding brake, which reduces axial length and eliminates drag when the shaft is back-driven. This combination makes the motor suitable for start-stop duty in compact motion assemblies.

Dynamic behavior tops out at a rated speed of 2300 rpm, giving a linear torque-speed curve through most motion profiles. Position and velocity feedback are supplied by a Tachsyn generator, and no secondary transducer is fitted, so the drive relies on that primary signal. The laminated stack measures 4 inches long, which corresponds to the J magnetic length code, and the windings use a medium thermal design for continuous operation without forced cooling. The motor has no shaft seal, so it should be installed where coolant or oil splash is absent. Because feedback is limited to the primary generator, it is best matched with control hardware intended for that signal type.