A shaftless screw as a conveyor, a compactor and a classifier

ANDRITZ offers a complete range of systems and equipment for solid/liquid separation in the sectors of Environment and Industrial Processing. Our equipment covers a wide range of applications including - screening, filtration of water and waste water – sludge thickening, dewatering and drying – conveying and compacting of screenings and sludge cakes – pneumatic transportation of pulverulents and granulates. Our shaftless screws have been specially designed to complete our range of equipment. We can therefore offer complete systems and turnkey installations to meet the current market demand.

Designed to offer an excellent answer to the processing of difficult products, the Andritz shaftless screw conveyors are available in a comprehensive range:

• Rotospir® for conveying of waste material
  
• Rotopress® for conveying and compacting of screenings from sewage or other industrial applications
  
• Spirosand® for removal of sand and heavy sediments from sewage effluent

The shaftless and bearingless design of our conveyors allow for larger capacities than traditional screw conveyors whilst requiring a minimum of maintenance.

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