Product Description:

The KA720BS0 is a permanent-magnet DC servo motor manufactured by Sanyo Denki and supplied as part of the K SANMOTION Servo Motors series. It is intended to drive linear stages, rotary tables, and other axes that require accurate speed and position control in industrial automation cells. When paired with a compatible amplifier and encoder, the motor delivers repeatable motion so packaging lines, pick-and-place robots, and electronic assembly equipment can synchronize tooling with conveyor flow or process timing.

The armature draws 3.6 A under stall conditions and 3.4 A at its rated operating point, while momentary current surges can reach 25 A during acceleration. Under continuous stall conditions, the shaft can resist a load of 0.77 N·m. Once the load is reduced to the rated operating point, the motor produces 200 W of mechanical power at 3000 rpm with a steady torque of 0.64 N·m. Transient overloads are supported by a peak torque of 5.4 N·m, giving machines the additional force needed to overcome static friction or indexing shocks. Dynamic response is enhanced by a low rotor inertia of 1.47 × 10^-4 kg·m², allowing the drive to follow tight velocity profiles without excessive overshoot.

The square mounting face measures 76 mm on each side, allowing direct attachment to compatible gearheads or mounting brackets. The motor weighs 2.64 kg, keeping the moving mass moderate for gantry or robotic arm installations. A permanent-magnet brake is included, and its coil accepts 90 VDC while drawing only 0.11 A to produce a static holding torque of 1.47 N·m. The brake prevents axis drift when operating power is removed, which is useful for equipment that must hold a load in a fixed position. During operation, the windings are energized by a drive that supplies the prescribed 80 V armature bus, providing consistent electrical operating conditions across coordinated axes.