EMI/RFI Shielding Knitted Wire Mesh Gasket, Knitmesh Strips, Knitwire Sleeves, Knit Wire Mesh Tapes

Knitted wire mesh gaskets provide high shielding performance applications in the magnetic and electrical fields. Gaskets can be either all metal knitted mesh or knitted metal mesh over an elastomer core to allow for recovery after compression. The choice of wire mesh material allows for a good galvanic match with mating flanges, thereby limiting the possibility of corrosion between gasket and flange. It can be supplied in rolls, tube or cut forms.

Material available: Stainless steel wire, galvanized iron wire, red copper wire, phosphor bronze wire, nickel wire, polyamide fiber, polyester fiber, metal wire and mixed fiber, etc. stainless steel knitted gaskets offer good corrosion resistance against acid and alkali.

Mesh Diameters
Mesh is normally knit from wires ranging in diameter from .0035” to .0200”. In special applications, we have knit wires ranging in diameter from .0005” to .0350”. These wires can be round or flat such as those used in copper gauze for cleaning and in air-filtration applications where large surface areas of wire are needed. A round wire when flattened has approximately twice as much surface area.

In filtration applications, wire diameter is the most important design variable. It directly affects flow, dirt holding capacity, pressure drop and cost. In general, larger diameter wire allows for higher flow but provides lower dirt holding capacity. Also, larger diameter wire is less expensive. Therefore, a balance must be struck between using a higher density filter of higher cost fine wire or a lesser density filter using lower cost heavy wire.

Application: In distillation, absorption, evaporation, filtration in the process of petroleum, oil refining, chemical industry, light industry, pharmacy, metallurgy, machinery, ship-making, automobiles and tractors, to delete the mist drop or liquid foam in air, also used as air filter in cars and tractors.

RFI/EMI Shielding
Knitwire Products knitted mesh provides a very effective and affordable solution to RFI/EMI shielding.

All electronic equipment sensitive to electromagnetic interference (EMI) must be shielded from external interference sources. In addition to this, any equipment which produces electromagnetic radiation, must be isolated to prevent any degradation to the performance of surrounding electrical and electronic equipment.

Excellent for bridging gaps
Knitted wire mesh provides a perfect solution for many applications in terms of RFI/EMI Shielding, especially where it is necessary to bridge gaps and leakage points in electronic enclosures.

Strips and cores can be produced in many different cross sectional forms with or without ‘fins’ for mounting into extrusions. The outer layer(s) of wire mesh provide an excellent shielding whilst the elastomer or mesh core provides a high level of resiliency.

Gaskets and sleeves available
Compressed gaskets can be produced from knitted wire mesh to make ideal grounding of RFI/EMI shielding around shafts.

Cable wrap mesh is supplied in a continuous, flattened stocking, two-ply tape for shielding around cables and loom assemblies. By overlapping the wraps, 4 layers of mesh provide an excellent shield.

Any commercially available wire can be used although the most popular materials are monel and stainless steel, followed by tinned copper clad steel and aluminium. Tinned copper clad steel provides a very good magnetic corrosion resistance whereas monel offers very good shielding performance and corrosion resistance. Monel has a hig tensile strength and is most commonly used in aluminium enclosures.