Mitsubishi Electric HC-KFS43K AC Servo Motors

The Mitsubishi Electric HC-KFS43K AC Servo Motor is a 400 W, low-inertia servo motor in the HC-KFS Series, designed for Mitsubishi MELSERVO motion control systems and precise positioning in CNC machines, packaging equipment, semiconductor machinery, and automated assembly systems. Rated for 3-phase AC at 129 V, it draws 2.3 A and provides a rated speed of 3000 rpm with a maximum speed of 4500 rpm, featuring a permanent magnet rotor, an incremental encoder for feedback, and a keyway shaft (K type) for secure coupling. The motor uses natural cooling, is flange-mounted, and offers IP55 protection (shaft excluded), with compatibility to Mitsubishi MR-J2S drives for integration into existing motion control architectures. Common replacements include Mitsubishi HC-KFS43, HC-MFS43K, and HF-KP43, making the HC-KFS43K a practical choice for precision motion in CNC feed axes, pick-and-place systems, conveyor positioning, indexing tables, and robotic applications.