Product Description:

The R34JENC-R2-NS-VS-00 is a servo motor manufactured by Pacific Scientific within the R Servomotors series. As a rotary actuator, it converts commanded drive current into mechanical motion for positioning tables, conveyors, or indexing stations in automated equipment. Its frameless resolver supplies absolute rotor angle to the drive, allowing closed-loop control without an external encoder and making the unit suitable for medium-inertia axes that require accurate speed and position regulation. That feedback helps the drive maintain stable speed and repeatable positioning during changing load conditions.

This model delivers a continuous stall torque of 3.2 Nm, which is the steady torque the motor can exert without overheating while locked at zero speed. For short motion bursts, peak torque reaches 8.30 Nm, enabling rapid acceleration of attached loads. The rated operating speed is 2300 rpm, so commanded velocity should remain within that limit. This operating range suits applications that need quick starts and short indexing moves without requiring a larger motor frame. Dynamic response is influenced by its reflected rotor inertia of 0.11 kg·m²×10⁻³; this relatively low value means less drive current is needed to change speed, benefiting pick-and-place or indexing cycles. The motor uses rare earth samarium cobalt magnets, which provide high air-gap flux density while helping the motor remain compact and thermally stable.

Physical integration details include a square frame measuring 3.25" square and an overall magnetic stack length of 4 inches. A Viton shaft seal limits lubricant egress in oily environments. The unit has Housing Style C, indicating a closed housing with rear conduit entry, and it mounts via English-pattern hardware so retrofit into legacy machinery is straightforward. Rear conduit entry can simplify cable routing in enclosed machine frames. Because no factory brake is fitted, mechanical holding devices must be supplied externally when vertical loads are present, and resolver feedback remains the sole position channel since no secondary transducer is provided.