Product Description:

The S32GNNA-HGNM-00 is a 6-pole neodymium magnet brushless servo motor manufactured by Pacific Scientific within the S Brushless Motors series. In automation cells, it supplies commanded torque and speed to actuators that require repeatable closed-loop motion. This model follows the NEMA frame mounting pattern, so it can replace legacy stepper or induction units without mechanical changes. That layout helps the motor fit existing machine plates and couplings in retrofit applications.

During continuous operation, the motor can hold a load with 4.0 Nm of stall torque, and short-duty peaks are accommodated up to 11.3 Nm. Each ampere of current produces roughly 1.3 Nm/ARMS, which helps the drive respond predictably during current-loop adjustment. The three-phase stator has a line-to-line resistance of 6.2 Ohms and an inductance of 18 mH, which affect voltage demand and current smoothness. A low rotor inertia of 0.34×10⁻³ kg·m² supports rapid acceleration during indexing moves. The motor has no integrated holding brake, so static position must be maintained electrically or with an external lock, and winding code G is used for this torque range.

The motor weighs 4.9 kg, which helps limit moving mass on gantries and other axes with frequent starts and stops. It generates 0.82 VRMS/rad/sec of back EMF, giving the drive a usable motor constant for speed estimation. The frame size is NEMA 34, and this two-stack version uses a longer magnetic path to increase torque output. A motor-mounted MS connector supports cable connection, while Hall sensors provide commutation feedback and a 1024 ppr line-driver encoder supplies position data for tighter control. This combination supports precise commutation at startup and stable feedback during motion. Because the shaft has no seal, contaminants should be kept away from the front bearing and connector area.