Low Cost Mesh 75micron/250mesh Standard market grade 75micron/250mesh Varied apertures – poor product cut Damaged wire due to poor wire drawing techniques and/or low quality stainless steel – Reduced mesh strength & Limited mesh tension Close up of wire after it has been drawn. Left picture shows surface defects. Right picture is as supplied by RF. Mesh defects – Major compromise on product quality
ISO 9044 The above standard allows up to 40 blemishes per standard roll. (36 M2) The above standard allows 6 aperture in every 100 to be between 25% and 50% different to the arithmetical aperture size. Material does not have to lie flat. Material can be supplied with a film of oil. Material and wire can show weaving/drawing marks.
The Russell Quality Maximum sieving efficiency – Mesh selection based on ‘Aperture & Wire diameter’ rather than ‘Mesh count’ Sieving accuracy – optimum product cuts, consistently Improved mesh life – High precision mesh manufacture Reduction in frequency of re-meshing Uniform apertures No Defects High Quality Drawing techniques – maximising wire strength
Micron vs Mesh Count 1 inch MESH COUNT The number of apertures which are counted in a row, one behind the other per inch Mesh Count = 25.4mm Aperture Size (mm) + Wire Dia (mm) Aperture size (Micron) The distance between two adjacent warp or weft wires
Example 100 mesh (100 apertures/inch) Russell Can offer a variety of meshes dependant on the actual hole size or product cut the customer is looking for: Selection Dependant on: VDS Sieve throughput (mesh loading) Screen size Product Characteristics