Mitsubishi HK-KT43UWK Servo Amplifier MR-S Series for CNC Machines

The Mitsubishi HK-KT43UWK is a servo amplifier belonging to the MR-S series of Mitsubishi Electric servo drives, designed for use in CNC (Computer Numerical Control) machine tool applications. This unit provides precision servo axis control and is equivalent to the MRS11300E01 model designation. The HK-KT43UWK has been classified as obsolete by Mitsubishi Electric, with the recommended successor being the MR-S11-300-N (order reference B0285-1). Users operating equipment that originally specified the HK-KT43UWK are advised to consider transitioning to the MR-S11-300-N for long-term support and parts availability. The MR-S series servo amplifiers are widely employed in CNC lathes, machining centers, and other numerically controlled equipment where reliable, high-performance servo motion control is required. As a direct replacement path exists, this amplifier remains a viable spare part option for maintaining existing CNC installations that rely on the original HK-KT43UWK unit.