An automatic system to load the workcarriers to the machine (and to unload them off) is available to reduce the wasted time between two cycles. The operator exploits the cycle time to load the parts into the workcarriers ......An automatic system to load the workcarriers to the machine (and to unload them off) is available to reduce the wasted time between two cycles. The operator exploits the cycle time to load the parts into the workcarriers and to input them into the system which, through a well defined path, stores them on a vertical buffer.