The machine has been designed for the automatic production of the “bayonet” clips normally used as earring backs. The machine automatically assembles the two parts of the clip through a pin made from a wire whose ends are cambered to ensure the perfect grip of the coupling. The entire production cycle of the machine is controlled by a PLC that monitors every phase of production and can detect any faults that could jeopardise correct clip assembly. As a result, the machine guarantees a very high standard of production. The particular accuracy of the mounting and finishing phases also means a very resistant and finely finished product.