S32GMAA-RNNM-02 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
The S32GMAA-RNNM-02 brushless servo motor is produced by Pacific Scientific as part of the S Brushless Motors series. It features a continuous stall torque of 4.0 Nm, peak torque of 11.3 Nm, and weighs 4.9 kg. This NEMA 34 motor has a 24V DC holding brake, uses a size 21 frameless resolver for feedback, and is built with a motor mounted MS connector termination style.
Internal Product Review
The S32GMAA-RNNM-02 is a 6-pole neodymium magnet brushless servo motor with 4.0 Nm continuous stall torque. Peak torque of 11.3 Nm and a size 21 frameless resolver give this motor strong dynamic response and dependable feedback in motion systems. Metric mounting and a motor-mounted MS connector make integration straightforward, making this unit an excellent servo choice.
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Product Description:
The S32GMAA-RNNM-02 is a six-pole neodymium-magnet brushless servo motor manufactured by Pacific Scientific for the S Brushless Motors series. Intended for closed-loop industrial positioning, the unit converts drive current into precise shaft motion suited to metric machine frames. It uses a size 21 frameless resolver as its primary feedback device and is supplied without secondary feedback. The motor follows metric mounting conventions and connects through a motor-mounted MS connector.
Its continuous stall output is 4.0 Nm, which is the maximum torque the rotor can hold indefinitely without exceeding thermal limits. The housing matches the NEMA 34 frame envelope, allowing installation in machine layouts designed for common stepper or servo units of that size. The line-to-line inductance is 18.0 mH, which affects the current rise time during operation. The line-to-line resistance is 6.2 ohms, setting the steady-state current at a given applied voltage. The torque constant is 1.3 Nm/ARMS, so each ampere of sinusoidal phase current produces proportional mechanical torque. A rotor inertia of 0.34 × 10⁻³ kg·m² supports stable speed regulation during rapid load changes.
A peak torque of 11.3 Nm provides short-term acceleration capacity above the continuous stall output. The voltage constant is 0.82 VRMS/rad/sec, which determines the back electromotive force seen by the drive as motor speed increases. The motor has a total mass of 4.9 kg, which influences mounting stiffness and load dynamics on small gantries. It has a two-stack magnetic core, winding code G, metric mounting, and no shaft seal, which minimizes friction at the output shaft. A 24 V DC brake secures vertical axes when power is removed and prevents an unsupported load from moving.
