Shaftless Spiral Conveyors SSC

SSC Shaftless Spiral (Screw) Conveyors offer large volume capacity and the possibility of handling particularly difficult materials. They are designed for handling of urban solid waste, screenings and floating matter, de-watered, thickened, or conditioned sludge, packaged food, creams or pastes, as well as waste from meat, fish, fruit and vegetable processing. The main sectors of application are: waste water treatment, sugarhouse rejects, fish industry, solid waste treatment, fruit and vegetable processing plants, beverage industry, pulp and paper, chemical industry, food industry in general, meat processing plants, abattoirs/slaughterhouses, restaurants, canteens, and catering in general.

Technical Features


SSC Shaftless Screw or Spiral Conveyor are an alternative concept to traditional shafted screw conveyors. Material is conveyed by an extra heavy-duty shaftless screw that slides on a wear-resistant, low-friction liner inside the conveyor trough housing.
The longitudinally divided U-section troughs are manufactured from carbon or 304 L / 316 L stainless steel, including an appropriate surface treatment. Fabricated parts, except the ultra heavy-duty screw, are of the medium heavy-duty type. The cross section of the lower part of the trough is slightly wider than the side channels to allow for the liner to be inserted in the lower trough part. After complete assembly of the trough the liner is kept in place by the upper trough side channels. At one trough end there is a vertical or flush-type outlet. At the drive end the screw conveyor is equipped with an end plate holding the end bearing assembly with flanged shaft coupling to the spiral. The installed drive unit suits the application.
SSC can be loaded from above into the open trough (standard), or through an inlet spout included in a bolted trough cover (option), or from the side through a special side inlet in the loading zone of the trough (option).

  • Troughput rates: up to 45 m³/h (26.4 cfm) for sludge; up to 12.9 m³/h (15 cfm) for screenings
  • Drive power: 0.55 kW (0.75 HP) ~ 9.2 kW (12.34 HP)
  • Trough and spiral manufactured from carbon steel or 304L / 316L stainless steel
  • UHMWP trough liner
  • Bolted trough cover
  • WAM standard inlet spouts
  • Inspection and overflow hatches
  • Drainage kit
  • Trough feet
  • Washing nozzles
  • Different type power transmissions: direct, coupling transmission, chain transmission, belt transmission
  • Different liners available: with wear signalling, bottom bars or plates, white or black colour plastic
  • Spiral guiding bar

Usage Areas

High Efficiency Conveying Of Difficult Materials High Efficiency Conveying Of Difficult Materials
Simple Design (Few Components) Simple Design (Few Components)
Low Maintenance Low Maintenance

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