Product Description:

The S32GNNH-RNNM-00 is a 6-pole neodymium-magnet brushless servo motor built by Pacific Scientific within the S Brushless Motors series. In automated machinery, this motor acts as the drive element for positioning tables, feeders, or rotary actuators that require accurate torque production, responsive speed control, and repeatable motion from cycle to cycle. A size 21 frameless resolver supplies real-time rotor position data to the drive, allowing closed-loop control that reduces following error and helps maintain stable axis behavior during continuous-duty operation.

Under continuous load, the unit delivers 4.0 Nm of stall torque, a level it can hold indefinitely without exceeding thermal limits. Transient events such as acceleration spikes are handled by a peak output of 11.3 Nm, giving the axis added headroom for starts, stops, and brief overload conditions. With a torque constant of 1.3 Nm/ARMS, each ampere commanded by the drive translates into predictable mechanical output. Current behavior is influenced by the phase-to-phase inductance of 18.0 mH, while copper losses are governed by the winding resistance of 6.2 Ω. The motor uses G windings, a 2-stack lamination, and high-voltage construction to suit bus supplies commonly found in servo amplifiers. It mounts on a NEMA frame using the supplied pilot, and power and feedback lines exit through a motor-mounted MS connector. The motor is supplied without a brake.

The housing mass of 4.9 kg helps conduct heat away from the stator, and the rotor inertia of 0.34 × 10⁻³ kg·m² supports quick acceleration while still promoting stable velocity regulation. A voltage constant of 0.82 VRMS/rad/sec matches digital drives that monitor back EMF for commutation and control. The frame conforms to NEMA 34 dimensions, which simplifies installation on existing machine mounts. Because there is no shaft seal and no secondary feedback channel, the motor is best suited to enclosed machine spaces that already shield the assembly from dust, fluid splash, and similar external contamination.