Dewatering elements from Röchling Industrial in ultra high molecular weight polyethylene set themselves apart by the special sinter press procedure over a long period used to produce them, as well as an extremely high molecular weight plus their extra additive that is specifically tailored to paper machines. All these benefits ensure what is an outstanding service life for plastic coupled with a low coefficient of friction. Dewatering elements can be used for machines with speeds up to 800 mpm.
All materials are produced through lengthy sinter pressing processes with extremely long press cycles. This enables us to produce covers up to 12 m long with no welding seams and also ensures a tension-free internal structure compared with the typical standard sinter press process and extrusion.
PE dewatering elements for paper machines have a high level of thermal expansion. They must therefore be installed in such a way that enables the strips or covers to expand without restriction (T-bars, corner strips, dovetail guides, screws in elongated holes). The base frame support must have a grid of approx. 250 mm to ensure flawless functionality for our covers. This support must extend to the underside of the cover to ensure it has a flat installation surface.