Product Description:

The S32HMAA-HNNM-03 belongs to the S Brushless Motors series developed by Pacific Scientific. It is a 6-pole neodymium magnet brushless servo motor intended for tightly controlled positioning and speed tasks within industrial automation. The model interfaces with a drive that excites its three H-type windings and uses built-in Hall sensors to relay commutation data, allowing motion controllers to regulate axis dynamics accurately and repeatably. This arrangement supports smooth electronic commutation and steady low-speed operation without the brush wear associated with older motor designs.

Its continuous stall capability is 4.0 Nm, so the shaft can sustain that torque without thermal overload, while peak acceleration events can draw on up to 11.3 Nm. A line-to-line resistance of 1.6 Ohms influences current demand at a given bus voltage, and the corresponding inductance of 4.5 mH affects current rise time and helps limit high-frequency ripple. The motor has a torque constant of 0.7 Nm/ARMS, giving the drive a predictable relationship between commanded phase current and mechanical output. Rotor inertia is 0.34 × 10⁻³ kg·m², which helps balance quick response with stable motion under changing load. No secondary feedback device is fitted, the winding stack length is two, and metric mounting surfaces simplify attachment to gearboxes or linear stages.

A 24 V DC brake locks the shaft when power is removed, which helps prevent back-driving on vertical axes. The motor conforms to the NEMA 34 frame size with metric hole patterns, combining a familiar outline with international fasteners. Service weight is 4.9 kg, which keeps the unit manageable for moving-axis installations while still providing useful thermal mass. Power and feedback conductors exit through a motor-mounted MS connector, keeping the electrical interface consolidated at the housing. Because the shaft has no seal, the motor should be installed away from liquid splash zones. A back-EMF constant of 0.44 VRMS/rad/sec helps relate shaft speed to generated voltage during drive setup and operation.