Standard products
Knitted wire meshes are produced from a single continuous filament and produce very high levels of EMI shielding performance when evenly compressed between two metallic contact surfaces.
Knitted wire meshes are produced from a single continuous filament and produce very high levels of EMI shielding performance when evenly compressed between two metallic contact surfaces.
Our knitted wire EMI shielding meshes are available in four basic wire types – Monel, Aluminium, TCS (Tinned Copper-clad Steel) and Stainless Steel. Each has it’s own specific characteristics but TCS is generally regarded as the most suitable for EMP (low frequency) shielding.
Because knitted wire mesh is not as resilient as an elastomer cored knitted mesh, and will eventually take a compression-set, they are generally used where the panel mating surfaces are permanent or fixed.
KP knitted meshes provide only limited environmental sealing so are normally used for applications that are not exposed to the elements unless they are protected by a further external elastomeric seal (see knitted wire mesh with environmental seal). They do, however, have a long service life and a high temperature tolerance.
For optimum effectiveness knitted mesh gaskets should be compressed by 20 – 25% of their relaxed height. If surface irregularities prevent this an elastomer cored knitted mesh would be more suitable.
Gaskets can either be retained in a groove or channel or fixed with adhesive (the wire contact points can penetrate a thin film), welding or soldering. To facilitate clamping or riveting, ’round-with-tail’ and ‘double-round-with-tail’ sections are available.
| Monel | BS3075 - NA13 | (0.11mm diameter) |
|---|---|---|
| Aluminium 5056 | AMS 4182 | (0.13mm diameter) |
| TCS | ASTM B520 | (0.11mm diameter) |
| Stainless Steel | Alloy 304 | (0.11mm diameter) |
| Frequency | Field | Monel | Aluminium | TCS | S/Steel |
|---|---|---|---|---|---|
| 10KHz | H | 45 | 40 | 60 | 40 |
| 100khZ | H | 49 | 45 | 65 | 44 |
| 1MHz | H | 60 | 60 | 85 | 58 |
| 1MHz | E | 125 | 125 | 125 | 125 |
| 10MHz | E | 120 | 120 | 120 | 120 |
| 100MHz | E | 100 | 100 | 108 | 100 |
| 400MHz | P | 98 | 95 | 99 | 94 |
| 1GHz | P | 85 | 76 | 78 | 76 |
| 10GHz | P | 80 | 65 | 62 | 60 |
+0.8mm / -0.0mm
Standard sizes can be specified from the table below. Alternatively, specify: Series-Wire Code-Style-Size/Dimensions
| Shielding Series | Wire Code | Style | Size |
|---|---|---|---|
| KP | M = Monel | 10 = Round | xxxx-xxxx |
| A = Aluminium | 20 = Rectangular | ||
| T = TCS | 30 = Round with tail | ||
| S = Stainless Steel | 40 = Double round with tail |
Examples:
KP-M-10-0024 is Monel wire 2.4 mm diameter round
KP-A-20-0095-0127 is aluminium wire 9.5 x 12.7 mm rectangular
- Knitted meshes are available in continuous lengths, cut pieces or as fabricated gaskets
- Compressed mesh gasket forms and o-rings can be produced to customers specifications
- Other sizes are available– please ask!
For details of fixing methods or any technical queries please contact our sales office
Many of our clients require bespoke made products. If you'd like to discuss a product, please do give us a call and speak to us about your requirements.
Gaskets can come in various shapes and sizes. We have put together a guide to help you measure some of the most common shaped gaskets correctly. Please follow the methods to help you successfully measure a gasket.
How to measure gaskets and o-rings