GAM2A4005F0CRK0 Sanyo Denki
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The Sanyo Denki GAM2A4005F0CRK0 is part of the G SANMOTION AC Servo Motors series and features a 40 mm square flange and 8 mm shaft diameter. It provides a rated output of 50 W, rated speed of 3000 min^-1, and rated torque of 0.159 N·m. The servo motor includes a 23 bit battery-less absolute encoder and has a mass of 0.48 kg.
Internal Product Review
The GAM2A4005F0CRK0 is a Sanyo Denki G SANMOTION AC servo motor with 50 W rated output and 200 VAC input. The battery-less absolute 23-bit encoder is a strong feature for precise positioning, and the 3000 min^-1 rated speed supports responsive motion control. A 0.59 N·m peak stall torque stands out as a key performance advantage in this compact servo class.
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Product Description:
The GAM2A4005F0CRK0 is a brushless AC servo motor produced by Sanyo Denki for the G SANMOTION AC Servo Motors series. It is designed for industrial automation tasks that require tightly regulated speed, torque, and position. The motor converts commanded current into precise rotary motion for positioning stages, compact pick-and-place heads, semiconductor tooling, and other space-constrained machinery.
The motor connects to a drive that supplies 200 VAC three-phase power. At this supply voltage, it draws a rated armature current of 0.79 A RMS and produces a continuous torque of 0.159 N·m at its base speed of 3000 rpm. Its square flange measures 40 mm on each side, providing a compact mounting footprint for small machine axes. The body measures 88 mm from the flange face to the end bell, while the 8 mm shaft transfers mechanical power directly to a coupling. The internally wound phases have a resistance of 9.3 Ω, which limits copper loss during steady operation. A separate brake winding draws 0.26 A to energize the holding brake and secure a stationary load. Position feedback is supplied by a 23-bit battery-free absolute encoder, which retains multi-turn position information after power is removed without requiring a backup battery.
The motor provides 50 W of continuous mechanical output and withstands transient loads up to 0.59 N·m of stall torque, supporting rapid acceleration under short-duration loads. Its torque constant is 0.235 N·m/A RMS, allowing drive current to be converted predictably into delivered torque. Rotor inertia is 0.0394 × 10⁻⁴ kg·m², promoting fast response and helping the servo loop limit overshoot during positioning moves. The motor has a total mass of 0.48 kg, which reduces the moving load when it is installed on gantries, articulated mechanisms, or compact robotic assemblies. The combination of low inertia and a short housing supports responsive movement where installation space is limited. The absolute encoder supplies detailed position data to the connected drive for accurate control during repeated motion cycles.
