Here comes a new machining center which tools can downed below the Z axis. The axis travel is then reversed and the magazine is rotated until the new tool is below the Z-axis and this cnc machining center is picked up by the movement downwards of the Z-axis and when it is clear of the magazine the whole tool carousel will slideway This cnc machining center change mechanism has fewer moving systems and relies on the fast up and downward swing out of the way. parts than most conventional motions of the Z-axis. It can typically change tools in less than 2s, giving a cut-to-cut time of 4-5s. 

Many tool changers utilise pneumatic arms for the relative motions of tool changing and it is essential to have an adequate air supply in order to minimise pressure drops whichcan jam the tool change mechanism during cutter removal. If the cnc machining center change arms become stuck, then there is a recovery sequence of button-pressing, but the whole problem may be minimised by having enough air available to meet the demands from all other areas of the machine shop. 

Special purpose auxiliary tooling equipment is available for machining centres and sophisticated and highly adaptable numerically controlled u-axis programmable milling heads can be fitted, for the machining of complex part geometries. 

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