Dec 11, 2018
When Steinbeis Papier in Glückstadt, Germany, started to develop papers for high-performance inkjet printing, they needed to make sure their winder was up to the challenge. They turned to Valmet to improve the winder set change time.
In 2015, Steinbeis Papier in Glückstadt, Germany, was making improvements on its PM 4 papermaking line. The mill was developing papers for high-performance inkjet printing, which demanded more from the capacity of the existing winder. The development work on lightweight coated (LWC) grades for high-performance inkjet printing meant that the customer rolls were smaller than before, making the set change times even more important.
Valmet had already delivered an OptiWin Belt winder to Steinbeis Papier back in 2000, but there had been no rebuilds since the start-up: the winder had fulfilled its task, as it was designed to meet the previous production targets. Steinbeis Papier chose Valmet as their partner to develop a solution to increase the winder capacity and to implement the necessary work.
An evaluation of the potential capacity increase showed that end taping during the set change was one of the biggest time-consumers, with a direct impact on capacity. The plan was to replace the time-consuming end taping process with Valmet’s traversing end-gluing device. The delivery also included improved set change equipment – a roll ejector – which ensures further time savings and reliable operation at higher throughput rates. Steinbeis Papier was very convinced of the solutions Valmet had suggested.
Both parties were pleased with the close cooperation during the project phase. The rebuild was carried out during a short, scheduled annual shutdown, and the optimizations were carried out together with the customer during the start-up. Valmet’s improvements brought the desired results and trouble-free operation.
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