Screw and Spiral Presses


Application Dewatering and compacting of sieving residues play an important role in water, waste water and waste treatment not only regarding reduction of costs for disposal and handling. Frequently, residues and recyclable fractions are dewatered and further compacted within production inherent processes. Furthermore, dewatering systems have the additional effect to transport the material from the source of origin to the place of disposal. PWL screw presses and PWL spiral presses meet these challenges to all intents and purposes and allow for an optimal benefit at a small footprint. The way of dewatering and conveying as well as the characteristics of the medium determine to a great extend the choice of the suitable equipment. Compared to the shaftless spirals which reliably convey large and long-fibrous pieces and are robust towards clogging, screw presses achieve higher dewatering results with the same size. Function The material to be dewatered passes a hopper or an upstream...

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