The hydraulic pressing machine intended for medium-big sized carpentries to recycle wood chips and grinded chips with min.-max. 8-17% moisture content, transforming them into cylindrical briquettes of variable diameter (according to the press); they are obtained with no addition of alloying elements or chemical additives and considerably reducing the volume (1/5-1/10 according to the material). The briquetting press can be installed on silos or filtering units, on their internal or external side.
It works by a mechanic and hydraulic cycle of pressing at very high pressures. A hopper containing material is fixed to a loading plane made up of a rotating wheel feeding the material to a box, which is managed by a hydraulic cylinder. This latter has the function to pre-compress it in the compression chamber. A special compacting hydraulic cylinder presses then the material in the bush-pipe group.