●Box guide ways realize long term high-precision and high rigidity. Heat treated box guide ways are attached to the surface which has high straightness and perpendicularity by scraping. ●The load to the column sliding section is reduced by air support for smooth high-speed feed despite the sliding method. ●Highly rigid Y-shaped integrated three-point support bed is adopted.●Ball screws of all axes are placed in the center of the sliding surface to minimize the position difference. (In the case of standardi spindle of HU63A/HU80A) ●Y axis ball screw is adopted twin drive, minimized position difference. (In the case of HPX63)