Pulp Paper & Logistics


ANDRITZ + XERIUM 19


Production of a press felt in Gloggnitz


Twisting In the twisting department, identical or different strands of thread are twisted together to form yarn. For press-felt base fabrics, yarns with combinations of multifilament and monofilament strands are used. This makes it possible to create a product with characteristics that exactly meet the customer’s specifications, for instance, better paper quality, higher dry content, stable runnability, etc.


“Xerium is one of the market leaders in this area and complements our range of products and services very well,” says Dietmar Heinnisser, division manager at ANDRITZ Pulp and Paper


incoming raw material that is intensely examined in our own laboratory. Once we have established that the raw material is exactly what we need for the final product, we produce our fabrics with each step in the production area being controlled and monitored by our specialist quality inspection team. “We use only the best in modern equipment, as the construction of felts and fabrics is very difficult and complex and only with the very best in equipment you can control the quality. We also receive samples of the used felts and fabrics back from our customers, so we can really see what happens to our products during usage.”


IIoT – bringing best-in-class solutions Big data analytics and IIoT technologies have become instrumental tools for Xerium in its work to maximise efficiencies and lifetimes of paper machine clothing. One of its latest innovations is the development of SMART Technology, which provides the first continuous pressure-sensing paper machine roll. Heinisser explains: “One huge


advantage we have is our tissue pilot plant in Graz – the TIAC. With the know-how of Xerium on the fabric side, together with Andritz’s paper machine knowledge and research facilities, we will be able to develop the best-in-class products where the customer can really benefit. Andritz expects to quickly be in the position to offer more valuable IIoT solutions across the paper, board, and tissue industries.” This combined knowledge, as


well extensive experience will provide a real boost to customers’ long-term performance. Xerium has always provided


tailored solutions, designed to optimise performance and reduce running costs on its customers’ machines. “Our new future with Andritz in Gloggnitz is really exciting,” concludes Müller. “This is the first time in our history that we have been associated with a producer of machinery and technology that actually uses our products on its machines. This is a big advantage for us and for our customers, as we can develop new products and technologies alongside Andritz that will push the boundaries of quality and efficiency.”


Weaving preparation / weaving During weaving preparation, the yarns and threads are made into ‘warp’ and ‘weft’. The warp runs through the weaving machine longitudinally; the weft is fed in laterally. Yarns or threads are spooled by means of sectional warpers. The number, length, and tension of the threads are predefined for each disc. These discs are combined to form a warp beam and inserted into the weaving machine. As many as 100,000 warp threads are pulled into the machine per warp.


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July/August 2019


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