An installation for the manufacture of ceramic products, the installation comprising at least one mould divided into at least two parts (2, 3) forming an internal cavity where the ceramic product is formed, and mobile towards and away from each other, under the action of respective drive means acting in both directions along a predetermined clamping line, in such a way as to join or detach the parts (2, 3) to/from each other; each part (2, 3) of the mould comprising at least one rear outside surface (2p, 3p) and one lateral outside surface (2s, 3s); wherein at least one of said parts (2, 3) of the mould is equipped with means for containing and controlling a fluid, encompassing at least the rear outside surface (2p, 3p) and the lateral outside surface (2s, 3s) of the mould part (2, 3) and being associated with the part (2, 3) of the mould in such a way that during the product casting cycle the forces acting on the part (2, 3) of the mould are constantly compensated, said containment and control means comprising a hermetically sealed containment element associated with the mould part (2, 3) to surround the rear outside surface (2p, 3p) and the lateral outside surface (2s, 3s) of the mould part (2, 3); said containment element being equipped with means for pumping compensation fluid in and out of a compensation chamber defined between the containment element itself and the rear (2p, 3p) and lateral (2s, 3s) outside surfaces of the mould part (2, 3); wherein at least the outside surface of the mould part has a protective jacket (11, 12) sealed and shaped to match the profile of the rear outside surface of the mould part and creating a separating surface between the compensation chamber and the rear outside surface itself; a moulding cavity, defined by inside surfaces (2c, 3c) of the part (2, 3) wet by a casting liquid, being suppliable with said product casting liquid through respective first means for controlling the service fluids in the cavity at different pressures according to the different steps in the product casting cycle, and the means for pumping containment and control compensation fluid in and out of the compensation chamber being correlated with the first means for controlling the service fluids, so that, in the chamber, the pressures in the moulding cavity can be compensated in real time with a suitable pressure (P') in the compensation chamber; said first means for controlling the product casting liquid comprising: - a first casting liquid tank connected by a first conduit to the moulding cavity, and - adjustable means for introducing a gaseous fluid into the first tank in such a way as to pressurize the casting liquid in the cavity at pressures which are predetermined as a function of the product casting cycle, - at least one second tank containing the compensation fluid that can be fed into the compensation chamber through a second conduit; characterized in that - there are drainage channels interposed between the rear outside surface and the jacket (11, 12) connected to an external service unit for draining out some of the product casting liquid, - and in that the second tank is connected through a fourth conduit to the first tank at the zone subjected to the thrust of the gaseous fluid in such a way as to enable the pressure present in the first tank to be equalized with the pressure (P') present in the second tank, that is to say, to correlate the counter-thrust pressure of the compensation fluid in the chamber with the thrust pressure that forces the liquid / air into the moulding cavity. - a first casting liquid tank connected by a first conduit to the moulding cavity, and - adjustable means for introducing a gaseous fluid into the first tank in such a way as to pressurize the casting liquid in the cavity at pressures which are predetermined as a function of the product casting cycle, - at least one second tank containing the compensation fluid that can be fed into the compensation chamber through a second conduit; - there are drainage channels interposed between the rear outside surface and the jacket (11, 12) connected to an external service unit for draining out some of the product casting liquid, - and in that the second tank is connected through a fourth conduit to the first tank at the zone subjected to the thrust of the gaseous fluid in such a way as to enable the pressure present in the first tank to be equalized with the pressure (P') present in the second tank, that is to say, to correlate the counter-thrust pressure of the compensation fluid in the chamber with the thrust pressure that forces the liquid / air into the moulding cavity.