Polytec takes the stars from the sky
Star screens are used in various areas of processing technology to separate mixtures and agglomerates into different fractions of defined size. It does not matter whether the feed material is dry, moist or even wet. Due to the interlocked fit of the screen stars on the shafts and their properties, the screen stars clean each other and fine material to be separated falls through the gaps.
Due to these diverse conditions, the screen stars are subjected to particular stress. Polyurethane, with its excellent mechanical and elastomeric properties, is particularly suitable as a material for screen stars. Due to its high tear resistance, long service lives can be achieved even with sharp-edged conveyed materials (e.g. coated chipboard). Together with its low abrasion, good UV resistance and low tendency to caking, our material is years ahead of rubber products.
