Product Description:

The KA720XS0 is a brushless servo motor manufactured by Sanyo Denki within the K SANMOTION Servo Motors series. Designed for closed-loop industrial axes, it transforms DC supply power into precisely regulated rotary motion so that pick-and-place heads, feeders, or compact conveyors can maintain accurate position and velocity. Its frame size and thermal capacity place it in the mid-power class, making the unit suitable for workstations that demand quick indexing without adding excess mass to moving components.

This motor supplies a rated mechanical output of 200 W while turning at a base speed of 3000 rpm; the corresponding continuous torque is 0.64 N·m. At that operating point, the armature is energized with 80 V and draws 3.4 A of current. The electromagnetic coupling between current and torque is characterized by a constant of 0.23 N·m/A, allowing the controller to predict load response accurately. The winding resistance is 2.2 Ω, contributing to copper losses during operation. Its 3.3 mH inductance shapes the current rise time that influences servo bandwidth. A power-rate capability of 2.8 kW/s allows the motor to reach the commanded velocity rapidly. The back electromotive force follows a voltage constant of 24.2 × 10⁻3 V per rpm. When held at zero speed, the unit can continuously sustain 0.77 N·m without overheating.

A transient demand can be met with a peak stall torque of 5.4 N·m, providing additional capacity for rapid acceleration or shock loads. Response to these peaks is aided by the low rotor inertia of 1.47 × 10⁻4 kg·m², so minimal drive effort is needed to reverse direction. The motor has a mass of 2.10 kg and mounts on a 76 mm flange, keeping payload weight low while simplifying attachment to gearboxes or direct-drive plates. Its compact housing is suitable for machinery with limited installation space, while the flange provides a stable mechanical interface for accurate shaft alignment.