The hydraulic press is used by the dental technician to mould mobile prosthesis. The hydraulic press P400 is able to clamp up to 3 muffles and reach a maximum pressure of 400 bars, exerting on the muffles a force of 15000Kg. (150.000 N). This is an excessive pressure and in order not to damage the muffles, the working pressure must be limited to 200 bar. The oil-pressure circuit is fully airtight and doesn’t need any maintenance.