Web tension systems for corrugated board production
In corrugated board production lines, after application of glue on one side, the corrugated board webs needs to be glued to the liner (outer liner) in the laminating station with correct and constant web tension. Web tension controllers perform this task separately for each web. Uniform distribution of the web tension across the full width of the web is also required. Compensating rollers operating purely mechanically guarantee that the web tension is the same over the entire web width. Compensating rollers operating purely mechanically guarantee that the web tension is the same on the left and right-hand sides. All these functions of the Erhardt+Leimer TensionMaster prevent curvature in a longitudinal, transverse, or diagonal direction and ensure the highest possible sheet quality.