Product Description:

The Pacific Scientific R34KENC-R2-NS-NV-00 servo motor belongs to the R Servomotors series produced by Pacific Scientific. It is intended for closed-loop motion tasks in industrial automation, where commanded current is converted into precisely controlled shaft rotation. A compact enclosure lets the unit fit pick-and-place heads, feed rolls, or indexing tables while still accepting standard digital drive commands for velocity or position loops. The motor uses a frameless size-21 resolver for primary feedback, and no secondary transducer is installed, so the control system receives position information from a single feedback device.

A continuous stall torque of 3.2 Nm indicates the load the motor can hold indefinitely without overheating, while a peak torque of 8.30 Nm supports short acceleration bursts during start-up or rapid indexing. At a rated speed of 4000 rpm, the electromagnetic design balances torque output with thermal limits for sustained operation. System responsiveness is influenced by a rotor inertia of 0.11 kgm² × 10⁻³, which helps the motor change speed quickly when paired with a suitable digital drive. The motor uses a 3.25-inch square frame, which simplifies interchange with other size-34 actuators. Factory configuration omits a holding brake and routes cabling through the standard C housing style.

The laminated stator stack is 4 inches long, giving the motor added active length without increasing the basic frame footprint. High-energy magnets made from rare earth samarium cobalt increase air-gap flux so rated torque can be produced at moderate current levels. Mounting follows an English bolt pattern common in automation equipment, and the shaft is supplied without a seal for clean environments where reduced friction is preferred. The Medium-High winding option matches drives that balance speed and torque response rather than emphasizing only one operating range.