Abstract: A method for modernizing a existing multiroll calender, having at least one stack of calender rolls (10, 20), each stack comprising at least two calender rolls (11, 12, 13, 14, 21, 22, 23, 24) and at least one of the calender rolls being a smooth-surfaced press-roll (12, 22). In an existing multiroll calender the smooth-surfaced press roll (12, 22) is replaced by an ultra thermo roll that is a thermo roll with a diameter substantially the same or less than the thermo roll to be replaced, so that the surface temperature of the ultra thermo roll when heated is at least 110° C., and has at least 10° C. higher than the surface temperature of the existing roll with the same heating fluid temperature and having flow channels arranged in such a way that vibration excitation is minimized, by being arranged to form a spiral geometry in the mantle.

Abstract: A method for modernizing a existing multiroll calender, having at least one stack of calender rolls (10, 20), each stack comprising at least two calender rolls (11, 12, 13, 14, 21, 22, 23, 24) and at least one of the calender rolls being a smooth-surfaced press-roll (12, 22). In an existing multiroll calender the smooth-surfaced press roll (12, 22) is replaced by an ultra thermo roll that is a thermo roll with a diameter substantially the same or less than the thermo roll to be replaced, so that the surface temperature of the ultra thermo roll when heated is at least 110° C., and has at least 10° C. higher than the surface temperature of the existing roll with the same heating fluid temperature and having flow channels arranged in such a way that vibration excitation is minimized, by being arranged to form a spiral geometry in the mantle.

Abstract: A device for drying and treating a fiber-based moving fiber web (1) in a machine intended for producing tissue paper includes a metal belt (2) which is arranged to support the fiber web (1) and to transfer the fiber web (1) in the machine direction and which metal belt (2) is arranged as a continuous rotating cycle, at least one roll (3) the shell of which is in contact with the metal belt (2) arranged to rotate around, which roll (3) is for supporting and/or controlling the metal belt (2), and at least one counter element (5) arranged to create a contact area outside the metal belt (2) between the metal belt (2) and the counter element (5) for a process zone (6), via which process zone (6) the fiber web (1) is arranged to travel when using the device.

Abstract: A device for drying and treating a fiber-based moving fiber web (1) in a machine intended for producing tissue paper includes a metal belt (2) which is arranged to support the fiber web (1) and to transfer the fiber web (1) in the machine direction and which metal belt (2) is arranged as a continuous rotating cycle, at least one roll (3) the shell of which is in contact with the metal belt (2) arranged to rotate around, which roll (3) is for supporting and/or controlling the metal belt (2), and at least one counter element (5) arranged to create a contact area outside the metal belt (2) between the metal belt (2) and the counter element (5) for a process zone (6), via which process zone (6) the fiber web (1) is arranged to travel when using the device.