Compact web tension control assembly for controlling the tension of multiple webs simultaneously and independently of one another in a tandem mode of a web printing system

A web processing apparatus, comprising a web transport station and a web processing station, said web transport station being arranged to transport, in a single mode of the web processing apparatus, a first web in a process direction towards or away from the web processing station, and to transport, in a tandem mode of the web processing apparatus, the first web and a second web in the process direction towards or away from the web processing station, the first web and second web being transported alongside one another in the tandem mode,

• wherein the web processing apparatus comprises a printing station comprising a printing surface for supporting the first web alongside the second web when viewed in a transverse direction perpendicular to the process direction of the first web and the second web when moving in tandem over the printing surface, and
• wherein the web transport station comprises a web tension control assembly comprising a first tensioning device and a second tensioning device, said first tensioning device being movably arranged for controlling tension of the first web,
• said second tensioning device being movably arranged for controlling tension of the second web independently of the tension of the first web, said first tensioning device comprising a first interior space, and wherein the first tensioning device is arranged with respect to the second tensioning device such that the first interior space at least partly accommodates the second tensioning device.