Product Description:

The S34GNNA-HGNE-00 is a 6-pole neodymium magnet brushless servo motor produced by Pacific Scientific within the S Brushless Motors series. Designed for closed-loop positioning and speed regulation on packaging machinery, gantry axes, and general factory automation, it converts drive current into controlled rotary motion with high dynamic response. Its four-stack lamination core and G winding variant let it serve mid-power applications while remaining compatible with standard NEMA mounting patterns used on North American machine frames. This combination supports responsive servo control in systems that require repeatable starts, stops, and speed changes under varying loads.

The motor provides a continuous stall torque of 6.6 Nm, so it can hold that load indefinitely without overheating when properly cooled. For rapid indexing moves, it can reach a peak torque of 25.3 Nm for short periods. A torque constant of 2.1 Nm/ARMS ties developed torque directly to drive current and simplifies current-loop tuning. The line-to-line inductance of 23.7 mH limits ripple current, while the phase resistance of 7.2 Ω affects copper losses during rated duty. The motor does not include an integrated holding brake. Commutation is referenced by internal Hall sensors, and power and feedback exit through connectors.

Mechanically, the motor follows the NEMA frame standard and occupies a NEMA 34 footprint, allowing bolt-on replacement of stepper or DC motors of the same size. It weighs 8.1 kg, which provides useful thermal mass while remaining light enough for moving-axis mounting. The rotor inertia is 0.64 × 10⁻³ kg·m², giving a balance between acceleration and load stability, and the back EMF constant is 1.32 VRMS/rad/sec to match medium-voltage servo drives. No shaft seal is fitted, so the installation should be protected from coolant washdown. Position feedback is supplied by a 1024 ppr incremental encoder with line-driver outputs.