R2AA18350DXR94M Sanyo Denki
Wake Industrial LLC is not an authorized distributor of this product.
The Sanyo Denki R2AA18350DXR94M is a middle inertia servo motor from the R SANMOTION Servo Motors series. It has a rated output of 3.5 kW, operates at a supply voltage of 200 Volts, and features a flange size of 180 mm. This motor has a peak current of 55.0 Arms, a rated speed of 2000 min-1, and a mass of 15.5 kg.
Internal Product Review
The R2AA18350DXR94M is a Sanyo Denki SANMOTION R servo motor with 3.5 kW rated output and 17.0 N·m rated torque. Middle-inertia construction and 60.0 N·m peak torque support confident dynamic response in demanding motion systems.
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Product Description:
The R2AA18350DXR94M is a medium-inertia AC servo motor manufactured by Sanyo Denki within the R SANMOTION Servo Motors series. Designed for positioning and speed-controlled axes, the unit converts an amplifier’s low-voltage output into rotary motion for machine tools, handling robots, and packaging stations. A 180 mm square flange and a 15.5 kg frame allow it to mount directly to gearheads or load couplings while meeting CE and UL requirements for installation in automation equipment worldwide.
The motor has a rated mechanical power of 3.5 kW. At a shaft speed of 2000 rpm, it delivers 17.0 N·m of torque while drawing 21.7 A rms from an amplifier operating on a nominal bus voltage of 200 V. These ratings support appropriate cable selection, overcurrent protection, and heat-sink sizing. The phase resistance is 0.075 Ω, and the torque constant is 0.88 N·m/A rms, allowing the drive controller to calculate commanded torque through proportional scaling. A stall torque of 22.0 N·m helps the axis resist static loads when commanded to hold its position. The motor is supplied without a holding brake, so an external brake or another load-retention method is required when holding force must remain available after power is removed.
During rapid acceleration, the drive can command a peak shaft torque of 60.0 N·m by supplying up to 55.0 A rms. These short-term limits help overcome friction and load inertia while keeping the winding temperature within its permitted range. A rotor inertia of 0.0040 kg·m² balances responsiveness with mechanical stability when the motor is coupled to sizable loads. Bearing-life calculations can use the allowable radial load of 2300 N at the assembly face. The voltage constant is 30.6 mV per rpm, enabling the controller to monitor back electromotive force for speed estimation. Compatible SANMOTION R amplifiers provide the feedback interface and power stage needed to operate the motor. The absence of a holding brake reduces rotating mass, but stationary loads must remain supported by commanded motor torque or external mechanics whenever movement would create a safety or process concern.
