Wire Basket Linings
Wire Mesh, Perforated Metal, and Expanded Metal
Most wire baskets are lined with either woven wire mesh, welded wire mesh, expanded metal, or perforated steel. Each wire basket lining material has distinct advantages and disadvantages.
Wire Mesh is designated by a “Mesh Number” (number of wires per inch) and a “Wire Diameter” (the diameter of each wire). The opening size is approximately 1/(Mesh Number) minus (Wire Diameter).
Perforated Metal is solid sheet metal with typically round holes punched in even rows. Hole diameters are rarely smaller than the material thickness. Perforated metals are designated by hole diameter, hole spacing, and material thickness. Readily available in carbon and 304 stainless steel, with limited sizes in other materials
This is the best lining choice for a very smooth surface, but typically has less open space than wire mesh or expanded metal.
Expanded Metal is solid sheet metal that is slit and pulled open (expanded) to create a sheet of diamond shaped openings. Designated by diamond size and material thickness. Expanded metal as an effective industrial basket lining should have supporting perimeter frames or protective U-edging on all exposed edges. Expanded metal is a low cost material, but quite often the added difficulties in basket fabrication will offset any material savings.
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