A shoe press for paper or board machines comprises a press shoe; a counter roll; the press shoe and the counter roll forming between themselves an extended nip for a paper or cardboard web and a circulated flexible belt; and at least one hydraulic loading cylinder for pressing the press shoe against the counter roll. Hydrostatic pockets are arranged in the side of the press shoe facing the counter roll and hydrostatic compartments are formed between the opposite side of the press shoe and the lo...

A press device having an extended press nip for pressing a running paper or paperboard web, comprising a carrier supporting a press shoe via a plurality of loading cylinders, out of which at least a few comprise a first cylinder member having a first end attached to or integrated in the press shoe, and a second cylinder member having a second end attached to or integrated in the carrier. The first and the second cylinder members are slidably coupled to each other by a coupling member, wherein th...

A shoe press for a paper or board machine, comprising a press shoe, a counter roll and a circulated flexible belt. A plurality of hydraulic loading cylinders for pressing the press shoe against the counter roll are arranged between a horizontal frame beam and the press shoe. The pistons of the loading cylinders are connected to the horizontal beam. The shoe press may have first hydrostatic compartments in the surface of the press shoe facing the counter roll and second hydrostatic compartments a...

A shoe press for a paper or board machine comprises a press shoe and a counter roll forming an extended nip for a paper or cardboard web and for a circulated flexible belt. At least one hydraulic loading cylinder is arranged between a horizontal supporting beam included in the frame system of the shoe press and the counter roll for pressing the press shoe against the counter roll, the piston of the loading cylinder being fixed to the supporting beam. A hydrostatic compartment is arranged between...

A shoe press comprises a shoe support device mounted downstream of the press shoe of the shoe press to carry forces acting on the press shoe and having a first support element that has a support surface facing the press shoe and is fixedly connected to a stationary stand of the shoe press, and a second support element in the form of at least one rolling body arranged in a space between the support surface of the first support element and an opposite support surface of the press shoe to be in con...

The invention relates to an assembly for positioning a heater in relation to a roll, wherein the roll (101) has a substantially cylindrical shape with a shall surface (103), rotatable around a shell axis (102), at a first distance (104) from the shell axis (102). The heater (105) comprises at least one heater section (106, 106', 106") intended for heating the shell surface (103), and is supported via a suspension attachment (107) by means of a supporting means (108) on a variable, second distanc...

The invention relates to a press in a machine for the production or treatment of a continuously running web of cellulosic fibrous material, for instance a paper, tissue or board machine. The press includes a press device and a counter element arranged opposite the press device, which is arranged to form a press zone in the form of an extended press nip in cooperation with the press device having a certain width in the machine direction for pressing the fibrous web as it runs through the press ni...

In a roll nip (5) formed between a shoe press roll (1) having a concave, plane or slightly convex press shoe (11), a flexible jacket (15) and a hot counter roll (3), the jacket (15) may be damaged by the heat from the counter roll (3) upon a web break. To avoid this, the roll nip (5) is opened by removing one of the press shoe (11) and the hot counter roll (3) from the other, so that the jacket (15) resumes a generally cylindrical shape having an arched portion located across the shoe (11). Then...

A press device with an extended press nip for pressing of a continuous paper or paperboard web comprises a press shoe, a backing member, a support, and a plurality of loading cylinders with main axes in their longitudinal directions. The press shoe can be moved between different positions. A stop member is arranged downstream of the press shoe for transfer between and fixation at different stop positions in the machine direction. At least some of the loading cylinders or the support comprise mem...

A shoe press for a paper or board machine, comprising a press shoe and a counter roll which between themselves form an extended nip for a paper or cardboard web and a circulated flexible belt, and at least one loading cylinder which is arranged between a supporting beam included in the frame system of the shoe press and the press shoe and adapted to press the press shoe against the counter roll. The press shoe is arranged on top of the loading cylinder and there is a device for releasably securi...