LOOPED WEDGE WIRE SCREENS

Looped wedge wire screens are a type wedge wire screen that work by separating materials such as solids from liquids, and smaller materials from bigger materials. Individual wires are put through a machine, looped at 70 mm and held together with cross rods. As a result this helps to achieve the accuracy of the slots and achieve the required aperture. The individual wedge wires are built into panels by feeding cross rods through the loops of the wires. Then the hole is clamped together and made secure, usually by riveting over the cross rod ends. Therefore the finished sieve is a grille made up of cross rods supporting profiled wires with loops. In addition, the usual materials for looped wedge wire screens are stainless steel grade 304, 316, 430 and mild steel.

Advantages of looped wedge wire screens

  • Self cleaning
  • Wear and corrosion resistant
  • Stronger than welded wedge wire screens
  • Less heat used to manufacture screens
  • Deep arch looped wedge wire coanda screens achieve a tilted effect for better water filtration

Looped wedge wire mesh

Looped wire screens are used for industries such as:

  • Coal mining
  • Dewatering screens
  • Petrochemical plants
  • Mineral and food processing
  • Glass recycling screens
  • Gold mining
  • Sugar beet screens
  • Paper and pulp screens
  • Sand recovery/reclamation screens for foundries
  • Deep arch looped wedge wire is used for coanda screens

CASE STUDY – FILTERING LOOPED WEDGE WIRE CYLINDER

We have produced a set of curved lower screens for a screw conveyor, rolled to a 240 mm radius, made in two halves and bolted together. as a result, it enables the walls to dewater as well as the curved section. The looped wedge wire is in 316 stainless steel. 1.6 mm aperture x profile 25 f, giving an open area of approx 36%. Also slot sizes can be made from 0.25 mm

CASE STUDY – COFFEE BEAN CURVED SCREEN

Screen Systems have recently completed the production of a curved looped wedge wire screen for the coffee bean industry. The screen was designed and manufactured at the dimentions of 1.5mm (AP) x 70mm. 28F looped wedge wire was used. The wire diameter was 2.35mm from 304 stainless steel. The cross bar was 7.7mm while the side plate was 50mm x 10mm.