An installation for manufacturing a part by implementation of a Bridgman method, said installation comprising: - at least one mold intended to receive a melted material, the mold being present in a heating zone situated inside an enclosure, - a cooling zone situated inside the enclosure and separated from the heating zone by a first thermal screen, the first thermal screen being fixed with respect to the enclosure and being situated on a first side (C 1) of the mold, the heating zone being superimposed on the cooling zone along an axis of the enclosure, - a first movement system configured to move the mold in the enclosure from the heating zone to the cooling zone along the axis of the enclosure, - a second thermal screen movable with respect to the mold, distinct from the first thermal screen and situated on a second side (C 2) of the mold opposite to the first side (C 1), - a second movement system, distinct from the first movement system, configured to move the second thermal screen in the enclosure along the axis of the enclosure, - an additional thermal screen movable with respect to the mold and distinct from the first and second thermal screens, the additional thermal screen being situated on the second side of the mold and being superimposed on the second thermal screen along the axis of the enclosure, the width of the additional thermal screen being less than the width of the second thermal screen, and - a third movement system, distinct from the first and second movement systems, configured to move the additional thermal screen in the enclosure along the axis of the enclosure independently of the second thermal screen. - at least one mold intended to receive a melted material, the mold being present in a heating zone situated inside an enclosure, - a cooling zone situated inside the enclosure and separated from the heating zone by a first thermal screen, the first thermal screen being fixed with respect to the enclosure and being situated on a first side (C 1) of the mold, the heating zone being superimposed on the cooling zone along an axis of the enclosure, - a first movement system configured to move the mold in the enclosure from the heating zone to the cooling zone along the axis of the enclosure, - a second thermal screen movable with respect to the mold, distinct from the first thermal screen and situated on a second side (C 2) of the mold opposite to the first side (C 1), - a second movement system, distinct from the first movement system, configured to move the second thermal screen in the enclosure along the axis of the enclosure, - an additional thermal screen movable with respect to the mold and distinct from the first and second thermal screens, the additional thermal screen being situated on the second side of the mold and being superimposed on the second thermal screen along the axis of the enclosure, the width of the additional thermal screen being less than the width of the second thermal screen, and - a third movement system, distinct from the first and second movement systems, configured to move the additional thermal screen in the enclosure along the axis of the enclosure independently of the second thermal screen.