Rullverk

Rullverk is a machine used in industrial production to handle rolled materials by unwinding and/or winding them into or from large rolls. They form part of converting lines and are designed to feed material steadily to downstream equipment such as printers, laminators, coaters, slitter-rewinders, or laminating processes, while helping to control tension and alignment.

Most rullverk consist of a rigid frame with one or more roll stands that hold mandrels or spindles for mounting rolls. They typically include a drive system to unwind or rewind the material, tension control devices such as dancer rolls, load cells, or brake systems, and guides or rollers to maintain correct web alignment. Many units also feature a traverse mechanism or steering guide to distribute wind evenly across the roll during winding. Some configurations are single-function unwinders or rewinders, while others are combined unwind-and-rewind systems to support efficient handling in a single process step.

Operation of a rullverk centers on controlled tension and precise material flow. The unwinding section feeds material to the process line, while the rewinding section collects finished material into new rolls, often with automated roll change capability. Control systems may regulate speed, tension, and alignment, and safety features protect operators during setup and operation.

Rullverk are used across industries that work with sheet or web materials, including paper, film, foil, textiles, plastics, and laminates. The English equivalent is commonly referred to as a roll stand, unwind stand, or rewind stand, depending on its primary function in the line.