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Standard modular or custom DEI shielding enclosures provide the highest shielding performance available using various combinations of steel and copper. ETS-Lindgren's welded fabrication enclosures are ideal for demanding RF shielding applications requiring higher RF performance and broader frequency range protection. The Series 101 RF shielded construction system meets and substantially exceeds all RF shielding requirements. An Architectural Shielded Enclosure is made using Flectron® materials, which are metallized fabrics whose primary application is electromagnetic interference (EMI) shielding. Electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. The shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. Typical materials used for electromagnetic shielding include sheet metal, metal screen, and metal foam. Another commonly used shielding method, especially with electronic goods housed in plastic enclosures, is to coat the inside of the enclosure with a metallic ink or similar material.
One example is a shielded cable, which has electromagnetic shielding in the form of a wire mesh surrounding an inner core conductor. RF shielding is also used to protect medical and laboratory equipment to provide protection against interfering signals, including AM, FM, TV, emergency services, dispatch, pagers, ESMR, cellular, and PCS. Similarly, varying magnetic fields generate eddy currents that act to cancel the applied magnetic field. In the case of high-frequency electromagnetic radiation, the above-mentioned adjustments take a non-negligible amount of time, yet any such radiation energy, as far as it is not reflected, is absorbed by the skin (unless it is extremely thin), so in this case there is no electromagnetic field inside either. Suppose that we have a spherical shell of a (linear and isotropic) diamagnetic material with permeability , with inner radius and outer radius . This coefficient describes the effectiveness of this material in shielding the external magnetic field from the cavity that it surrounds. RF shielded enclosure refers to any box, chassis, or other packaging that prevents the passing of electromagnetic interference or radio frequency. K-Form combines an extensive knowledge of RF shielding practices with experience as a prototype manufacturer.
A root of our success in developing custom RF shielded enclosures is the philosophy of employing proven design solutions. Over 30 years, K-Form has collaborated with customers to develop hundreds of products meeting the toughest requirements in the world.
K-Form partners with Norseman Defense Technologies to provide complete solutions to unique challenges of critical IT systems.
Conductive elastomer gaskets are EMI shielding and sealing devices made from highly conductive, mechanically resilient and conformable vulcanised elastomers. Electromet oriented wire in solid or sponge elastomers, and impregnated wire mesh and expanded metals. Our high performance thermal interface elastomers provide engineers, designers and manufacturers with the ability to create equipment that runs cooler and more reliably.
Partnering with Caledonian Industries & Laird Technologies for your thermal requirements gives you access to the industry's broadest product line of thermal interface materials specially engineered to solve your toughest thermal problems.
We carry extensive stocks of noise control foams & elastomers which we can supply in sheet or roll form. These materials are applied to reduce the vibration in panels, typically machinery casings, where it is the vibrating panel that is producing the noise, or as a cushion to prevent shock being transmitted to delicate components.

Flight cases are designed using the most up-to-date CAD software, which gives us the unique opportunity to present you with the most durable flight case tailored to your individual requirements.
Protective packaging for your product and assemblies is vital and the solution can be provided using our vast range of converted foams. Highly stable comb generator completely contained in a 10 cm (4 inch) spherical dipole enclosure. The USDS is the most accurate and reliable E-field source for fast measurements available on the market! The sturdy construction and unique assembly of the solid enclosure systems allow for repeated disassembly and reassembly without loss of shielding effectiveness. It delivers high performance attenuation over a broad frequency range and meets a wide range of critical testing needs.
The pre-engineered, all-welded shielding concept offers long-term, maintenance-free RF performance and superior structural integrity to support shielding requirements from 30Hz to 94GHz and above. This fibrous shielding material uses conductive fibers to achieve a specified shielding performance. Integrates physical and Tempest security so as to maintain configuration flexibility, regardless of changes in hardware, technology or the security landscape.
Shielding is typically applied to enclosures to isolate electrical devices from the 'outside world', and to cables to isolate wires from the environment through which the cable runs.
Any holes in the shield or mesh must be significantly smaller than the wavelength of the radiation that is being kept out, or the enclosure will not effectively approximate an unbroken conducting surface. The ink consists of a carrier material loaded with a suitable metal, typically copper or nickel, in the form of very small particulates.
Copper is used for radio frequency (RF) shielding because it absorbs radio and magnetic waves.
The shielding impedes the escape of any signal from the core conductor, and also prevents signals from being added to the core conductor.
From the perspective of microwaves (with wavelengths of 12 cm) this screen finishes a Faraday cage formed by the oven's metal housing. One is that, due to the electrical resistance of the conductor, the excited field does not completely cancel the incident field. For static or slowly varying magnetic fields (below about 100 kHz) the Faraday shielding described above is ineffective. You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.
We have decades of product development experience and a 30,000 square foot facility dedicated to low-volume and prototype manufacturing. K-Form blends our standardized products, past projects, and new technology to meet challenging requirements. Our portfolio of high performance elastomers and foams along with strategic material manufacturer alliances allows us to satisfy the demanding requirements of the defence, aerospace, electronic, medical, and oil & gas industries. Conductive elastomers are used for shielding electronic enclosures against electromagnetic interference (EMI). Together with our manufacturing partner, Laird Technologies, we are constantly formulating new and custom compounds to provide you with more design options to meet your needs.
Our thermal management products include gap fillers (including putties), phase change materials, thermal greases, and thermally conductive insulator materials. Our range of foam materials can be applied to provide a solution for both original equipment and in-plant noise problems.

We are a Sales Associate for the PORON® Urethane and BISCO™ Silicone range of materials from the Rogers Corporation of the US. We use the very latest materials to BS standards, designed specifically for the construction of flight cases. We have been designing and manufacturing for the packaging industry for over 30 years and can offer a wide portfolio of polyethylene and polyurethane foams.
Please fill in the form below and your enquiry will be sent directly to the supplier' email address. Electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as RF shielding. The amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic field.
It is sprayed on to the enclosure and, once dry, produces a continuous conductive layer of metal, which can be electrically connected to the chassis ground of the equipment, thus providing effective shielding. Some cables have two separate coaxial screens, one connected at both ends, the other at one end only, to maximize shielding of both electromagnetic and electrostatic fields. As soon as an electric field is applied to the surface of an ideal conductor, it induces a current that causes displacement of charge inside the conductor that cancels the applied field inside, at which point the current stops. Also, most conductors exhibit a ferromagnetic response to low-frequency magnetic fields, so that such fields are not fully attenuated by the conductor. A measure of the depth to which radiation can penetrate the shield is the so-called skin depth.
In these cases shields made of high magnetic permeability metal alloys can be used, such as sheets of Permalloy and Mu-Metal,[5] or with nanocrystalline grain structure ferromagnetic metal coatings.[6] These materials don't block the magnetic field, as with electric shielding, but rather draw the field into themselves, providing a path for the magnetic field lines around the shielded volume.
K-Form designs and manufactures a wide variety of enclosures from rugged electronics packaging to mobile shielded SCIFs. This provides unique value for markets interested in mitigating the threat of comprising emissions. Our manufacturing facility is ISO9001:2000 qualified and offers fast turn around times on gasket design and manufactured products. Class O (BS476) Foams available have a high resistance to fire, low smoke emission and excellent acoustic properties. Any holes in the shield force current to flow around them, so that fields passing through the holes do not excite opposing electromagnetic fields. The best shape for magnetic shields is thus a closed container surrounding the shielded volume. Although the use of shielding is widespread, K-Form focuses on Defense and Aerospace applications for critical mission systems.
Custom features, odd sizes, and challenging applications contribute to our next generation products. The effectiveness of this type of shielding depends on the material's permeability, which generally drops off at both very low magnetic field strengths and at high field strengths where the material becomes saturated. The current Paladin and Sentinel RF shielded racks have numerous improvement derived from custom projects. So to achieve low residual fields, magnetic shields often consist of several enclosures one inside the other, each of which successively reduces the field inside it.

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