KA730BS0 Sanyo Denki
Wake Industrial LLC is not an authorized distributor of this product.
The Sanyo Denki KA730BS0 servo motor is part of the K SANMOTION Servo Motors series and has a rated output of 300 W with a rated speed of 2500 min^-1. It features a flange size of 76 mm square, a rated armature voltage of 75 V, and a continuous stall torque of 1.43 N·m. The motor weighs 3.44 kg and is equipped with a three-channel encoder that has a resolution of 2000 pulses per revolution.
Internal Product Review
The KA730BS0 is a Sanyo Denki K SANMOTION servo motor rated at 300 W and 2500 min^-1 for responsive motion control. Continuous stall torque of 1.43 N·m and peak stall torque of 9.8 N·m give the unit strong low-speed authority during dynamic load changes. A 2000 P/R encoder with 3 channels supports accurate feedback, making KA730BS0 an excellent choice for precise positioning.
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Product Description:
The KA730BS0 is a brushless AC servo motor developed by Sanyo Denki for the K SANMOTION Servo Motors series. Intended for industrial automation, it delivers commanded torque and speed to indexing tables, material handlers, and gantry axes when paired with a compatible drive. The motor has a square 76 mm flange and a compact frame, simplifying direct mounting to gearboxes or timing-belt pulleys. This arrangement provides precise rotary motion in systems that require repeatable positioning without additional mechanical backlash.
The motor provides a continuous stall torque of 1.43 N·m, representing the steady mechanical load that the stator can sustain thermally at zero speed. Its torque constant of 0.27 N·m/A relates output torque to phase current and supports accurate drive current-loop adjustment. Under nominal conditions, the phases draw 4.8 A from a DC bus maintained at 75 V, establishing the operating load that affects the allowable duty cycle. For rapid acceleration or impact loads, the motor can reach a peak stall torque of 9.8 N·m for short intervals before thermal limiting intervenes. This temporary torque capacity supports demanding starts and quick changes in motion without increasing the motor’s continuous thermal load.
An optical encoder delivers 2000 P/R across three channels, enabling the controller to resolve 8,000 quadrature counts per revolution for precise position regulation. The motor operates at a rated speed of 2500 rpm, providing suitable velocity for small conveyors, robotic joints, and other midrange servo axes. At that speed, the shaft can provide a continuous output of 300 W. The motor weighs 3.44 kg, allowing secure mounting without adding excessive mass to the machine structure. Its rotor inertia is 2.7 × 10⁻⁴ kg·m², which supports fast reversals while allowing stable drive-gain settings. A holding torque of 1.96 N·m helps maintain the shaft position when motor power is removed.
