Wire mesh filters are used in various industries to filter, absorb or evaporate contaminants or microscopic particles. They are made of woven wires of different gauges and compositions, and can be customized according to customer specifications. The thickness and mesh size of the wire can vary depending on the job requirements. Wire mesh filters can be made in different configurations, including two-dimensional or three-dimensional designs, and are used in air conditioning units, ovens, water filtration plants, chemical manufacturing, and petroleum processing.
Wire mesh filters consist of woven wires of various gauges and compositions, which many industries use to absorb, filter or evaporate. Industries create wire mesh products in commonly used shapes, sizes and configurations, but companies can also manufacture the filters according to customer specifications. Used to separate air or liquids from contaminants or microscopic particles, wire filters must be resistant to acids, corrosion and heat.
Manufacturers create wire mesh filters using different thicknesses, or diameters, of wire. Industries measure gauge by standard wire gauge number (SWG), either in inches or millimeters (mm). The higher the gauge number, the thinner the wire. Wire mesh measured at 32 measures 0.01 inch (0.25 millimeter) in diameter. The thickness or diameter can extend up to 1 inch (25.4 mm).
The mesh of wire mesh filters describes the number or size of holes between the weaves. Manufacturers usually express wire mesh dimensions in inches, millimeters, and microns. Mesh with large openings, ranging in size from 0.25 inch (6.35 mm, 25,400 micron) to 1 inch (25.4 mm, 6,350 micron), are numbered to indicate the size of the openings. The finest wire mesh is numbered from 3.5 to 400, indicating the number of holes per inch as well as the size of the opening in inches, millimeters, or microns. The mesh size required for particular jobs depends on the size of the particle that needs to be trapped in the filter.
The machines weave, or sometimes knit, the yarn in several configurations, including a plain weave, where individual strands simply weave over each other, and a twill pattern, which uses two strands at a time, horizontally and vertically braiding each strand under and over each other, forming a sturdier product. Not unlike basket weaving, wire weaving can appear in different patterns, which creates different strengths and sizes of wire mesh.
Wire mesh types include aluminum, brass, and copper, as well as galvanized and stainless steel. Depending on the type of machinery housing the filter, companies can design the product in two-dimensional or three-dimensional configurations. Manufacturers often create flat wire disc filters that are cut into any two-dimensional shape required. Filters can also be created by forming the mesh around a metal frame in a cylindrical, conical, or three-dimensional design.
Air conditioning units often contain wire mesh filters to separate oil or pollen from the incoming air, and ovens or other heating units might also use wire mesh filters to keep dust out. Water filtration plants use these filters to clean water supplies. Similarly, brewing and winemaking, chemical manufacturing, and petroleum processing all have uses for filters made with wire mesh.
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