Verstellportal, shrinking device with adjustable shaft walls and method of adjusting shaft walls

The invention relates to a Verstellportal (1) for a shrinkage device (50) with shrink tunnel(51) for setting at least two in at least one relative position to each other adjustable shaft walls (33). The Verstellportal (1) comprises at least one adjusting device (10) having an adjusting means (22) and at least two adjusters (40), wherein the discontinuing the shaft walls (33) of the shrink tunnel(51) are arranged on an adjusting device (40) respectively. The adjusting device (10) is variably positionable along an adjustment distance (18), thereby selectively at least one respective adjusting device (40) assignable and this can be brought into operative connection. In operative connection between the adjusting device (40) and the adjusting means (22) of the adjusting device (10) is the adjusting device (40) repositionable. The invention further relates to a shrinking device (50) having at least two mutually in their position adjustable shaft walls (33) and a method of adjusting the shaft walls (33).