Product Description:

The S32HNNA-HSNS-02 is a 6-pole neodymium magnet brushless servo motor produced by Pacific Scientific for the S Brushless Motors series. In automated machinery, this unit supplies controlled rotary motion to positioning stages, pick-and-place arms, and similar motion axes. It follows the NEMA frame mounting convention, so it can fit existing machine layouts that use standardized mounting dimensions without requiring adapter plates. The brushless design also allows electronic commutation instead of mechanical brush contact, which supports precise motion control in servo applications.

This model delivers a continuous stall torque of 4.0 Nm, allowing it to hold static loads without overheating, while its peak torque reaches 11.3 Nm for short acceleration bursts. A torque constant of 0.7 Nm/ARMS relates commanded current to developed shaft torque, which helps when matching the motor to a compatible amplifier. Coil inductance is rated at 4.5 mH, and line-to-line resistance measures 1.6 ohms; these electrical values affect current response and heat generation during repeated duty cycles. Primary rotor position feedback is supplied by integrated Hall sensors, which provide commutation information to the drive during startup and low-speed operation. The motor uses the H winding variant and a two-lamination stack length that corresponds to the listed electrical constants and torque capability.

Rotor inertia is 0.34 kg·m² ×10⁻³, which supports quick directional changes without excessive current demand from the drive. The motor weighs 4.9 kg, an important consideration when it is mounted on moving carriages or vertical axes where overall mass affects system balance. When back-driven at rated speed, it generates a voltage constant of 0.44 VRMS/rad/sec, which is useful when estimating regenerative behavior. Mechanical integration follows the NEMA 34 frame size. The motor does not include a shaft seal or a holding brake, so applications that require contamination protection or power-off load holding need external provisions.