GAM1A4005F0CRK0 Sanyo Denki
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The Sanyo Denki GAM1A4005F0CRK0 is an AC servo motor from the G SANMOTION AC Servo Motors series. It features a rated output of 50 W, rated speed of 3000 min-1, and a peak stall torque of 0.56 Nm. The motor comes with a 17-bit battery-less absolute encoder and has an IP67 ingress protection rating.
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Product Description:
The GAM1A4005F0CRK0 is an AC servo motor produced by Sanyo Denki and supplied under the G SANMOTION AC Servo Motors series. This compact 40 mm frame unit is intended for positioning tables, pick-and-place heads, and other industrial axes that require repeatable speed and torque control within a small footprint. Its square flange measures 40 mm on each side, simplifying attachment to miniature gearheads or direct-drive stages. The circular shaft is supplied without a key or oil seal to minimize runout and friction.
The motor belongs to the 100 V class and delivers a continuous mechanical output of 50 W. When energized, it reaches a rated speed of 3000 rpm while producing a continuous torque of 0.159 N·m. Supplying this load requires a phase current of 0.81 A RMS, and the phase resistance is 7.0 Ω, which affects drive-side voltage drop and thermal rise. Rated performance is supported by a batteryless absolute encoder that eliminates maintenance associated with battery replacement. The encoder retains multi-turn position data after power loss, allowing the axis position to remain available when the system restarts.
The motor can withstand intermittent loads up to 0.56 N·m, providing additional torque during acceleration or when overcoming static friction. Closed-loop feedback has a resolution of 17 bits, enabling precise motion commands down to sub-arc-minute increments. The IP67 enclosure protects the stator and encoder against dust ingress and temporary immersion, so washdown installation is possible when the connectors are properly sealed. Total mass, including the factory-mounted holding brake, is 0.57 kg. The coupled rotor inertia is 0.0218 × 10⁻⁴ kg·m², allowing rapid speed changes with limited overshoot. The holding brake secures the connected load when motor power is removed, which is useful for vertical or gravity-loaded axes. The low rotor inertia and absolute position feedback suit responsive servo control in semiconductor tools, inspection gantries, and other precision equipment.
