Device for the high-pressure treatment of goods in a closable high-pressure chamber, having - a holding frame in which the high-pressure chamber is held during the application of high pressure, - a withdrawal device by means of which the high-pressure chamber can be withdrawn laterally out of the holding frame, - at least one end-side closure with a closure plug (3a, 3b) for the high-pressure chamber, - at least one hydraulic drive for moving the end-side closure plug (3a, 3b) into the pressure vessel, - a line system having ports, by means of which line system the high-pressure medium can be conveyed into the high-pressure chamber and conveyed out again after the treatment process, - a support device (6a, 6b) which is arranged in movable fashion between the end sides of the high-pressure chamber and the holding frame and which, during the application of high pressure, transmits the force between vessel closure and holding frame, characterized in that - the axial forces applied to the closure mechanism by the treatment pressure are absorbed by means of a force transmission device in the form of a semicircular disc (7a, 7b), - the rounded side faces away from the high-pressure chamber, - which force transmission device, at its side facing toward the high-pressure chamber, has in each case one vertical support surface above and below the axis of the high-pressure vessel, - which force transmission device has, at its side facing toward the high-pressure chamber and in alignment with the axis of the high-pressure vessel, a receptacle for a hydraulic cylinder, with lateral ports for the pressurization with hydraulic fluid, and - the semicircular discs (7a, 7b) form a part of the outer casing, which bears hydraulic pressure, of the hydraulic cylinder. - a holding frame in which the high-pressure chamber is held during the application of high pressure, - a withdrawal device by means of which the high-pressure chamber can be withdrawn laterally out of the holding frame, - at least one end-side closure with a closure plug (3a, 3b) for the high-pressure chamber, - at least one hydraulic drive for moving the end-side closure plug (3a, 3b) into the pressure vessel, - a line system having ports, by means of which line system the high-pressure medium can be conveyed into the high-pressure chamber and conveyed out again after the treatment process, - a support device (6a, 6b) which is arranged in movable fashion between the end sides of the high-pressure chamber and the holding frame and which, during the application of high pressure, transmits the force between vessel closure and holding frame, characterized in that - the axial forces applied to the closure mechanism by the treatment pressure are absorbed by means of a force transmission device in the form of a semicircular disc (7a, 7b), - the rounded side faces away from the high-pressure chamber, - which force transmission device, at its side facing toward the high-pressure chamber, has in each case one vertical support surface above and below the axis of the high-pressure vessel, - which force transmission device has, at its side facing toward the high-pressure chamber and in alignment with the axis of the high-pressure vessel, a receptacle for a hydraulic cylinder, with lateral ports for the pressurization with hydraulic fluid, and - the semicircular discs (7a, 7b) form a part of the outer casing, which bears hydraulic pressure, of the hydraulic cylinder.