Product Description:

The R34JSNC-TS-ND-NV-02 belongs to the R Servomotors series produced by Pacific Scientific. It is a brushless servo motor intended for precision positioning and speed control in automated machinery, where its torque density and feedback options support tight loop regulation with low mechanical lag. When integrated into a servo axis, it converts electrical input into controlled rotary motion for repeatable movement in assembly lines, packaging equipment, and semiconductor tools.

Mechanically, the motor has a frame size of 3.25" square, so it fits compact mounting patterns common to mid-range actuators. It provides a continuous stall torque of 3.2 Nm, which allows load holding during static portions of a duty cycle without overheating. The rated speed is 2300 rpm, which is the shaft speed available while the motor delivers rated torque under steady thermal conditions. Rotor inertia is 0.11 kg·m² × 10⁻³, giving moderate resistance to acceleration that balances dynamic response and overshoot in servo loops. The magnetic circuit uses rare earth samarium cobalt, which provides high flux density and strong resistance to demagnetization at elevated temperatures. It uses housing style C and a medium winding. The motor is supplied without a holding brake or shaft seal.

For transient motion, the motor can deliver up to 8.30 Nm of peak torque, supporting quick indexing or short shock loads before returning to its continuous limit. Position and velocity feedback are provided by a Tachsyn resolver, while fine incremental data come from a 500 ppr line driver encoder. The stator stack length is 4 inches, which increases thermal mass and extends permissible on-time during high-load periods. The lack of an internal brake keeps back-driving friction low. The open shaft end is supplied without a seal and is intended for clean in-cabinet installations where contamination control is provided by the machine enclosure.