First one is to raise the machine speed...
The sheets are then guided through the machine at a higher speed, which leads to more sheets running through the machine per time unit. However, a negative side effect occurs especially at top speeds: Considerable loss of quality at the final product, such as jams and creases, which are caused due to the harder impact of the sensitive paper on the sheet stop.
...but, however, the better way is to reduce the sheet gap...
This way more sheets find room per linear measure and again more sheets can be transported per time unit. The great advantage here is that the machine speed stays in an uncritical field for quality and process reliability.
…or even to shingle the sheets.
With the Stahlfolder TH / KH 82-P and the Stahlfolder TX 96 , innovative technology has enabled us to maximize this effect whilst keeping quality and process reliability by not only reducing the sheet gap to a minimum, but even going further by using “negative sheet gaps “: The sheets are transported through the entire folding machine in a shingled way.
Too high machine speeds cause compressions of the paper.
By shingling the sheets, more sheets per time unit can be folded - without increasing the machine speed.
Unveiled at drupa and already in continuous operation – the Stahlfolder TH 82-P sets new standards at Kirchner Print Media and Müller Druckverarbeitung. Press ReleaseVideo
Respond optimally to changing folding jobs with the Stahlfolder CH 56 – from signatures in long runs to digitally printed final products in small quantities. Video
The Austrian printing house Grasl FairPrint invests together with its partners agensketterl and AV+Astoria in two high-performance folders Stahlfolder TX 96 and two Stahlfolder TH 66. Crucial factors for the investment were the innovative folding technology and the automation concept.Press Release
The new buckle plate folder Stahlfolder TH 82-P was awarded with the prestigious InterTech Technology Award 2016 for shingled folding from the Printing Industries of America. Press Release
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