GAM1A4005F0XRK0 Sanyo Denki
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The Sanyo Denki GAM1A4005F0XRK0 is part of the G SANMOTION AC Servo Motors series, featuring a flange size of 40 mm square and a motor mass of 0.38 kg. This servo motor has a rated output of 50 W and a rated speed of 3000 min^-1. It uses a 23-bit battery-less absolute encoder and its shaft style is circular with no key and no oil seal.
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Product Description:
The GAM1A4005F0XRK0 is a brushless servo motor produced by Sanyo Denki within the G SANMOTION AC Servo Motors series. Designed for closed-loop motion control, the unit converts drive current into precise mechanical rotation for positioning axes, pick-and-place heads, and compact conveyors in industrial automation. Its compact square frame allows the motor to fit in tight spaces where fast start-stop cycles and high positional accuracy are required. Electronic commutation eliminates brush wear and supports consistent operation during repetitive motion sequences.
Under continuous operation, the motor delivers a rated mechanical output of 50 W. This output is available at a rated shaft speed of 3000 rpm, allowing the connected drive to support high-speed positioning tasks. At the rated operating point, the motor produces 0.159 N·m of torque while drawing a steady armature current of 0.81 Arms, which supports proper conductor and protection-device selection. The copper windings have a phase resistance of 7.0 Ω, which can be used to estimate copper losses. Position feedback is provided by a 23-bit battery-free absolute encoder with 8,388,608 discrete positions per revolution, eliminating the need for periodic homing. The absolute feedback system retains position information without relying on a replaceable encoder battery.
The motor can withstand transient load spikes up to a peak stall torque of 0.56 N·m, allowing short acceleration bursts or momentary jams without loss of synchronism. Each ampere of sinusoidal armature current generates a torque of 0.244 N·m/Arms, supporting current-loop tuning and dynamic model calculations. Mechanical installation is aided by a standardized 40 mm square flange and a circular shaft without a key or oil seal, so clamping couplings can be installed without key-alignment hardware. Rotor inertia is limited to 0.0153 × 10-4 kg·m², enabling quick speed transitions during rapid indexing. The motor has a total mass of 0.38 kg, which reduces the load imposed on compact machine assemblies. It can be paired with a single-axis amplifier capable of supplying up to 10 A for demanding acceleration cycles.
