GAM2A4003F0XRK3 Sanyo Denki
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The Sanyo Denki GAM2A4003F0XRK3 is part of the G SANMOTION AC Servo Motors series and has a 40 mm square flange size with a shaft diameter of 6 mm. This servo motor features a battery-less absolute encoder with 23-bit resolution. It offers a rated output of 30 watts, rated torque of 0.098 Nm, and reaches a maximum speed of 6500 min^-1.
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Product Description:
The GAM2A4003F0XRK3 is an AC servo motor produced by Sanyo Denki within the G SANMOTION AC Servo Motors series. Designed for positioning tasks in compact industrial axes, the model delivers closed-loop rotation for machinery that requires accurate speed and position control. Its continuous power and fast transient capability support pick-and-place heads, light conveyors, indexing mechanisms, and other automation equipment that requires repeatable motion within a limited installation space.
The motor’s feedback device provides 23-bit resolution, allowing fine position measurements across one mechanical revolution. Mechanical attachment is provided by a 40 mm square flange and a keyed 6 mm shaft, while an oil seal around the shaft helps prevent lubricant from entering the stator. The motor delivers a rated output of 30 W at a rated speed of 3000 rpm, producing a rated torque of 0.098 N·m. To sustain this operating point, the windings draw 0.65 A RMS, and the housing has an overall length of 56.5 mm for installation in narrow machine frames. The batteryless absolute encoder retains position information during line shutdowns without requiring routine battery replacement, reducing the supporting hardware needed for absolute position recovery.
The motor reaches a maximum speed of 6500 rpm, providing additional headroom for rapid acceleration and high-speed positioning profiles. Under sudden load changes, the rotor can deliver a peak stall torque of 0.37 N·m while drawing a peak current of 2.3 A RMS. A torque constant of 0.183 N·m/A RMS provides a direct relationship between drive current and produced torque, supporting accurate current-loop adjustment in a compatible servo amplifier. The rotor inertia is 0.0233 × 10⁻⁴ kg·m², allowing rapid starts and stops with limited overshoot in low-load mechanisms. This low inertia also reduces the effort required to reverse direction during short indexing cycles, while the compact rotor and stator assembly keeps the total moment low for delicate positioning equipment.
