Abstract: A layer of polymer resin, typically a thermoset reactive two-component resin, is applied onto a Yankee cylinder (3). The resin is cross-linked in order to form a continuous coating layer or film, containing a charge of micro- and/or nano-sized particles, in order to increase hardness and thermal conductivity of the resin.

Abstract: The cylinder (1; 111) comprises: a shell (3; 113) and two heads (5, 7; 115, 117), defining an inner hollow space (9), inside which a heat-transfer fluid flows. Support and rotation journals (15, 17; 121, 123) are also provided, fixed to said heads; and a thermal insulation system (23, 25; 125, 125) for the heads (5, 7, 117, 119). The thermal insulation system comprises, for each head, a plurality of thermal insulation panels (27; 127), each of which comprises a closed space (10) defined in a shell, inside which there is housed a thermal insulating material (35).

Abstract: The air hood (3) for Yankee rolls (1) comprises at least one supply circuit (5, 6, 7) to supply dry hot air towards outlets (7A) to a working area, and at least one suction circuit (11) to suck wet air from the working area. The hood comprises a thermal insulation insulating at least partially the supply circuit from the suction circuit.

Abstract: The winding rod (A) comprises a longitudinal body (15) extending from a first end to a second end of the rod. It also comprises expandable elements (33) distributed around a longitudinal axis of the longitudinal body and at least one pressurization circuit for expanding said expandable elements. The expandable elements (33) are distributed in a first group of expandable elements and a second group of expandable elements, arranged in end portions of the longitudinal body, which also comprises an intermediate portion devoid of expandable elements.

Abstract: The air hood (3) for Yankee rolls (1) comprises at least one supply circuit (5, 6, 7) to supply dry hot air towards outlets (7A) to a working area, and at least one suction circuit (11) to suck wet air from the working area. The hood comprises a thermal insulation insulating at least partially the supply circuit from the suction circuit.

Abstract: The cylinder (1; 111) comprises: a shell (3; 113) and two heads (5, 7; 115, 117), defining an inner hollow space (9), inside which a heat-transfer fluid flows. Support and rotation journals (15, 17; 121, 123) are also provided, fixed to said heads; and a thermal insulation system (23, 25; 125, 125) for the heads (5, 7, 117, 119). The thermal insulation system comprises, for each head, a plurality of thermal insulation panels (27; 127), each of which comprises a closed space (10) defined in a shell, inside which there is housed a thermal insulating material (35).