Method and device for the treatment of a product web

A method for a treatment of a product web which is transported in an advance direction, the method comprising:

• guiding the product web through a first treatment gap which is formed by a first treatment roll being arranged in a first working position and a counter tool;
• providing a second roll, the second roll being a second treatment roll;
• moving the second roll into a second working position in which the second roll forms a second treatment gap with the counter tool;
• moving the first treatment roll into a first parked position in which the first treatment roll does not form the first treatment gap with the counter tool;
• and
• guiding the product web through the second treatment gap while the second treatment roll is in the second working position,
• wherein,
• the second working position is always arranged at a distance from the first working position so as to avoid a collision between the first treatment roll and the second treatment roll, or between a mounting of the first treatment roll and a mounting of the second treatment roll, when the first treatment gap and the second treatment gap exist simultaneously,
• the first working position and the second working position overlap when either the first treatment gap or the second treatment gap solely exists, and
• the mounting of the first treatment roll and the mounting of the second treatment roll are independent of each other.