Double column machining center also called dual column machining center. Double column machining center is a type of machining center with two independent columns. This structure consists of two columns and a crossbeam, forming a stable portal structure that enhances the overall rigidity and stability of the machine tool. The design of the dual column machining center enables the machine tool to adjust the position of the columns according to the machining requirements of the workpiece, thereby expanding the machining range and improving machining flexibility. This type of machining center is widely used in aerospace, automotive manufacturing, mold processing, and other fields, especially when processing large and complex shaped workpieces. There is a crossbeam in the middle of the double columns, and the overall structure is a large machining center machine with a portal frame composed of double columns and top beams, suitable for processing large parts