Machining Centers are widely used for a variety of the latest machining processes. In 2002, Mitsubishi Heavy Industries, Ltd. (MHI) released the VΣ-series and HΣ-series machining centers that provide high-accuracy and high-efficiency part machining for the die/mold, power systems and aircraft industries. The operations are realized incorporating innovative technology such as high-speed low-vibration spindles, thermal displacement restriction, high-speed hydrostatic guide ways and high-speed high-accuracy servo drives. Σseries are at the forefront of advanced technologies.