Precise edge control in harsh environments

Bitumen sheets for roof coverings are being produced on a company's production line. Each sheet consists of a carrier layer which is first impregnated with bitumen, then given a bitumen coating on both sides and sprinkled with granulate. Before the sheets pass through a cooling zone, a film is applied so that the sheet does not stick together when rolled up during packing. As the production line has several guide rollers and drums, the edge of the sheet must be checked at various positions in order to ensure that the final product has a uniform coating.

 

The complete application report you will find in the following PDF file.