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Germany, Austria, Switzerland


Spiral Compactor

Transport, pressing and dewatering of screenings in wastewater treatment plants, and waste, residue and recyclable matter in industrial processes.

The Noggerath® Spiral Compactor SCD with its centrepiece, the shaftless spiral, reliably transports, dewaters and compacts even problematic materials – e.g. containing fibres or sand – without clogging. Sizes, lengths and installation angles can optimally be tailored to meet individual site requirements.

Unique Features

  • Economic and compact: conveyance and dewatering in one system
  • Simple fast maintenance due to single conveying element
  • Heavy-duty spiral with insert design
  • Safety microswitch on the dewatering zone for safe operation and inspection
  • Fully encapsulated system
  • No internal bearings to prevent blockages
  • Non-clogging even with fibrous materials
  • Flexible installation and ease of integration into existing plants:
    length customisable by adapting trough length between 1.5 m to 12 m,
    customisable installation angle between 0° and 25°


The Noggerath® Spiral Compactor SCD consists of a shaftless spiral conveyor which leads into a compacting and dewatering zone. The solids are fed via a hopper into a U-shaped conveyor trough, where they are taken up by a conveyor spiral and transported further. The spiral leads to a wedge-wire cylinder with a gap widths of 1 mm, which serves as a dewatering screen. Supported by a spring-loaded back-pressure flap mounted at the outlet, the solids are formed into a friction plug and simultaneously compacted and dewatered.