Pneumatic joining top table machine for the assembly of any shape and kind of frames either with four, six or eight sides, even curves. The mitered pieces of mouldings to be joined are connected tightly by a steel nail type PV (for very soft, soft, medium woods and plastic) and type NP (for hard, very hard woods and for compact materials as MDF). The two loaders are interchangeable on the same machine. These nails are in strips and according to the height of mouldings there are different sizes available. Machine equipped with automatic device that prevents marks on top of the moulding during joining operation. It is possible to set nails in 2 or more different position and drive more nails one behind the other into the back of the mouldings. No electric power is required. Easy to use. The machine is capable of joining moulding of the following dimensions: min width - 10mm (3/8"); height - 8mm (10/32'); max width - 100mm (3 15/16"); height - 60mm (2 3/8"). Sound level: LAeq < 74 dB (A).