GAM2A4005F0CNK1 Sanyo Denki
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The Sanyo Denki GAM2A4005F0CNK1 is part of the G SANMOTION AC Servo Motors series and has a rated speed of 3000 min-1 with a shaft diameter of 8 mm. It features a single-turn absolute encoder, a flange size of 40 mm square, and offers IP67 ingress protection. The servo motor's rated armature current is 0.79 Arms and it provides a brake static torque of at least 0.48 N·m.
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Product Description:
The GAM2A4005F0CNK1 is a compact AC servo motor produced by Sanyo Denki for the G SANMOTION AC Servo Motors series. As a rotary actuator, it converts drive current into controlled torque and rotary motion for pick-and-place heads, indexing tables, and light conveyor axes in industrial automation. Its integrated encoder provides position feedback to the connected servo drive for closed-loop control. The square mounting flange and sealed housing make the motor suitable for semiconductor handlers, vision stages, and other equipment that requires precise, repeatable motion in confined spaces.
The 40 mm square mounting flange simplifies attachment to compact gearboxes, and the housing meets an ingress protection rating of IP67, shielding internal components from dust and temporary immersion in water. Under continuous load, the stator windings draw 0.79 Arms to produce the electromagnetic field required to sustain the rated speed of 3000 rpm. These operating values allow the connected drive to maintain the intended speed while keeping winding current within the continuous operating range. The built-in holding brake requires 0.26 A, allowing a compatible servo amplifier auxiliary supply to energize it without an external converter. This brake provides a mechanical holding function when the axis is stationary and power to the motor windings is removed.
For dynamic moves, the amplifier can deliver a peak phase current of 2.9 Arms, enabling short bursts of torque to overcome inertia and friction. When the machine is stopped, the brake clamps the shaft with 0.48 N·m of static torque, preventing drift on vertical axes. The magnetic circuit has a torque constant of approximately 0.235 N·m/Arms, which links commanded current to output torque during closed-loop control. An 8 mm circular shaft without a key fits low-backlash couplings used in compact motion systems. An oil seal protects the shaft opening, while a single-turn absolute encoder supplies the drive with rotor position data after startup. The motor has an overall length of 93 mm, supporting installation in space-restricted equipment and washdown areas. Its rotor inertia is 0.0394 × 10⁻⁴ kg·m², which affects acceleration response under changing loads. A phase resistance of 9.3 Ω influences winding losses and heat generation during operation.
