Tape Tum-up System

One of these kinds of tum-up system has two high-pressure nozzles before the reel drum which can be moved very quickly in the cross direction. These nozzles start in the middle of the web at a distance of about 20 to 40 cm. The high-pressure water jet thus cuts a center strip which is transferred to the empty reel spool after the primary nip. After its successful turn-up, the two high pressure nozzles are 

On a new generation reel, where the secondary nip is opened, the next step is to cut the center strip in the open draw after the primary nip with an air nozzle or a small knife. The stripe is then self-threading and the turn-up can be finished as described above. 

Another high-pressure water jet system is similar to a gooseneck which only turns up the center strip. This system can be used both with a closed and with an opened secondary nip. With these systems the beginning of the center strip is not immediately fixed at the empty reel spool, which can lead to considerable bottom broke especially with the gooseneck-type system. 

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