Press and method for molding an ingot made of thermoplastic or thermosetting material

Press for molding an ingot made of thermoplastic or thermosetting material, comprising a basement integral with risers, a first and a second plane relatively sliding with respect to said risers, by means of first and second hydraulic cylinders, respectively adapted to allow opening and closing a mold formed of at least one first half-mold fastened to said first plane and a second half-mold fastened to said second plane and quickly increasing or reducing the relative distance between said first and said second plane and by means of actuators adapted to allow containing within a restricted tolerance threshold the parallelism between said first and said second plane, wherein said actuators are adapted to exert a force whose direction is equal to or opposite with respect to the direction of the force adapted to allow opening or closing said mold, and in that said first plane connected to said basement is moved by means of said first hydraulic cylinders and said actuators, said second plane connected to said risers is blocked by means of a blocking apparatus, after a sliding with respect to said risers to allow positioning said second plane in a certain position by means of said second hydraulic cylinders, said first hydraulic cylinders and said actuators adapted to move said first plane to allow opening or closing said mold and contain within a restricted tolerance threshold the parallelism between said first and said second plane.