A CNC system including a travelling drive bar assembly for support of material to be processed. A mobile portable device transmits an activating signal to the data storage system via a wireless communications network. A lock rod is received in the main housing, for selectively engaging the firing spring. The valve closing piece is elastically deformed by the product pressure when the actuating head is actuated and opens the check valve. The base member allows an outlet member, which is formed with a passage configured to deliver the powder from the powder storing body to an outlet and has a shutter function for selectively blocking or unblocking the passage, to be connected to or disconnected from the base member. However, other work queues continue to be able to send andor receive messages.