HC-KFS43 is Mitsubishi MELSERVO J2S series low-inertia AC brushless servo motor, rated power 400W, rated speed 3000rpm, rated torque 1.3Nm. It is equipped with 17-bit absolute encoder for high-resolution position feedback, mainly supporting MR-J2S servo amplifiers. Widely used in automated assembly equipment, pick-and-place machinery, small CNC machines, indexing tables and packaging automation lines requiring fast acceleration and deceleration. It is an end-of-life spare part for legacy Mitsubishi J2S motion control platforms.

This flange-mounted servo motor adopts IP55 protection grade for motor body, suitable for workshop dust-proof application. Low rotor inertia design enables rapid start, stop and direction reversal, reducing positioning overshoot. Standard straight shaft without brake version. Built-in high precision optical encoder transmits rotor position and speed signal back to servo drive to realize closed-loop motion control. Power and encoder connectors are separated for convenient wiring and maintenance. The motor winding supports 200V AC servo power input.

The operating temperature range is 0~40℃, stable under continuous cyclic operation. Built-in thermal sensor monitors winding temperature to prevent overheating burnout. It supports high dynamic response and repeated positioning tasks, and can cooperate with reducers for larger torque output. It needs to match corresponding MR-J2S amplifier, encoder cable and power cable during commissioning.

HC-KFS43 is obsolete Mitsubishi servo motor spare part. Many legacy automated machines adopt MELSERVO J2S servo systems. When the original motor fails, replacement with identical HC-KFS43 can reuse mounting flange, coupling, power cable and encoder cable. Technicians install the motor, complete wiring, carry out electronic origin setting and test jogging and positioning motion, so servo motion control system resumes operation and reduces production downtime.

Before shipment, every HC-KFS43 undergoes comprehensive functional inspection including winding resistance test, insulation resistance test, encoder signal detection and rotation running test. All products come with 12-month warranty. Our automation technical team provides remote support for installation, alignment guidance, parameter configuration and fault diagnosis. Fast global shipping available for urgent maintenance orders.

For automation maintenance engineers and system integrators, HC-KFS43 is reliable spare low inertia servo motor for legacy Mitsubishi MELSERVO J2S motion systems. It restores high-speed and high-precision closed-loop positioning, guarantees machine dynamic performance, extends service life of automation assets and avoids whole mechanical axis renovation.