R2AA08075FXH11 Sanyo Denki
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The Sanyo Denki R2AA08075FXH11 is a middle inertia servo motor from the R SANMOTION Servo Motors series, featuring a flange size of 80 mm and a rated output of 750 W. It offers a continuous stall torque of 2.55 N·m, a rated speed of 3000 min-1, and supports a supply voltage of 200 Volts. The motor is equipped with an absolute encoder with a resolution of 131072 per revolution and does not include a holding brake.
Internal Product Review
The R2AA08075FXH11 is a Sanyo Denki SANMOTION R series servo motor with 750 W rated output and a middle inertia design. Rated torque of 2.39 N·m and peak torque of 8.5 N·m support strong dynamic response for precise axis control. High-resolution absolute encoder feedback at 131072/rev is a standout feature for accurate positioning.
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Product Description:
The R2AA08075FXH11 is a medium-inertia AC servo motor produced by Sanyo Denki for the R SANMOTION Servo Motors series. Intended for positioning and speed-control axes in industrial automation, the unit converts drive current into precise mechanical motion through a twelve-slot stator and rare-earth rotor assembly. Its 80 mm square flange integrates with compact gearheads and linear actuators, allowing a single frame size to be used across multiple machine stations.
The motor operates from a three-phase 200 V supply, balancing torque density with insulation stress in medium-power servo drives. Its continuous phase current is 4.6 A rms, which establishes the thermal requirements for cabinet cabling and drive sizing. Closed-loop control maintains a rated shaft speed of 3000 rpm under nominal load. At that operating point, the shaft delivers 2.39 N·m of torque and produces an output of 750 W, making the motor suitable for moderate-inertia loads such as indexing tables and pick-and-place heads. The torque constant is 0.559 N·m/A rms, providing predictable current-to-torque conversion, while the 0.4 Ω phase resistance affects copper losses and drive gain tuning. Its phase-to-phase inductance supports stable current loops during rapid changes in velocity.
The motor can draw a peak current of 15.5 A rms and produce a maximum torque of 8.5 N·m during short acceleration periods. Its continuous stall torque is 2.55 N·m, allowing the motor to hold a stationary load within its thermal limits. Position feedback is generated by an absolute encoder with a resolution of 131,072 counts per revolution, supporting precise closed-loop positioning. The rated power rate is 31 kW/s, indicating the motor’s acceleration capability, and the voltage constant is 19.5 mV per rpm for monitoring back electromotive force. The motor has no holding brake, which reduces its mass and rotational inertia. Its maximum mechanical speed is 6000 rpm, providing additional speed range above the nominal operating point.
