For machining parts are box-shaped plane, or higher levels of stairs, then select the point---linear system of machining center. If the processed parts are surface contour, shall be decided according to the geometry of the surface selected two-axis and three-axis system. Also according to the machining requirements, in General machining center based on the increased CNC dividing head or CNC Rotary worktable, system for four-coordinate CNC system of machine tools, parts can be machined with spiral grooves, blades, and so on.
Smaller, its width is below 400mm, it is most suitable for small parts machining and complex surface contour milling tasks. The bigger table above the 500-600mm, used to solve large and complex parts machining needs.