R2AA18550RXH00 Sanyo Denki
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The Sanyo Denki R2AA18550RXH00 is a middle inertia servo motor from the R SANMOTION Servo Motors series with a flange size of 180 mm. It has a rated output of 5.5 kW, rated torque of 35.0 Newton-meters, and a rated speed of 1500 revolutions per minute. This motor features a 17-bit absolute encoder for an incremental system and operates on a 200 Volt supply.
Internal Product Review
The R2AA18550RXH00 is a Sanyo Denki SANMOTION R series servo motor with 5.5 kW rated output and 35.0 N·m rated torque. An absolute encoder for incremental system with 131072-division resolution supports precise feedback and stable positioning performance. Peak torque of 90.0 N·m gives this servo motor excellent overload capability for demanding motion profiles.
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Product Description:
The R2AA18550RXH00 is a medium-inertia AC servo motor produced by Sanyo Denki as part of the SANMOTION R Servo Motors series. Within multi-axis automation cells, it serves as a rotary actuator that supplies commanded torque and speed to gearboxes, pulleys, or direct-drive loads. This operation enables precise positioning and velocity regulation under closed-loop feedback control in automated machinery.
The stator windings are designed for a 200 V class drive, and the main circuit is rated at 8.4 kVA, giving the amplifier sufficient capacity for dynamic cycles. During continuous operation, the shaft can deliver 5.5 kW of mechanical power while producing a nominal torque of 35.0 N·m at a synchronous speed of 1500 rpm. Supplying this load requires a phase current of 31.6 A RMS, which helps determine inverter capacity and conductor size. For short transients, such as acceleration or disturbance rejection, the motor can develop up to 90.0 N·m of peak torque without exceeding its thermal limits. The electrical circuit has a phase resistance of 0.059 Ω, a torque constant of 1.23 N·m/A RMS, and a voltage constant of 42.8 mV per rpm that indicates the back electromotive force generated during high-speed operation.
When the axis is motionless, the motor can sustain a continuous stall torque of 37.3 N·m without additional cooling. Rotor position is reported through an absolute encoder that provides 131,072 divisions with 17-bit resolution, allowing the controller to resolve angles smaller than 0.003 degrees for smooth commutation and fine incremental movement. A square 180 mm mounting flange aligns the motor with compatible machine frames and supports accurate installation. The motor uses its standard configuration without optional sealing or cooling modifications. It has no holding brake, so static load retention must be provided by drive-applied torque or an external mechanical device when power is removed.
