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Magnetic Shielding

A reliable source for EMI Shielding information and leading EMI Shielding Companies.

Magnetic shielding is just one of several protection methods, and it is usually used in environments where the magnetic field slowly varies below the 100 KHz range, making all other solutions ineffective. Read More…

Magnetic Shielding Magnetic shielding is a broad range of products used to protect electronics from incoming or outgoing emissions of electromagnetic frequencies. These products are usually used because electromagnetic interference can damage sensitive electronic products. If shielding is not used, the electronic device could be damaged or made entirely useless because of the way that electromagnetic interference disrupts its primary functions.
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Leading Manufacturers

San Fernando, CA  |  818-764-8222

Spira Manufacturing Corp. offers the most reliable EMI gaskets & shielding for the electrical / electronic industries to meet required EMC/EMI shielding regulations.

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Spira Manufacturing Corporation $$$

Lancaster, NY  |  716-684-7600

Sealing Devices is a leading North American distributor and fabricator of EMI shielding products, including conductive elastomers, Soft-Shield® low closure force gasketing, windows, conductive adhesives, formed-in-place parts, vents and elastomers.

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Sealing Devices Inc. $$$

Tipp City, OH  |  937-667-8484

Established in 1965, Captor Corporation has been an industry leader offering high quality custom EMI filters. Our services use "off the shelf" parts, are faster and more affordable than our competitors. We also specialize in manufacturing low to medium volume jobs of circuit boards and cable harnesses. Contact us today for EMI/RMI filter solutions tailored to meet your specific requirements!

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Captor Corporation $$$

Bethlehem, PA  |  800-576-7325

Seal Science, Inc. (SSI) is an industry leader in design engineering and precision manufacturing of materials and components for critical sealing applications and advanced technology systems. SSI provides cutting edge technological solutions for mechanical and electrical systems; including structural subsystem design, signature management and electromechanical interference (EMI) shielding products. Contact us for more information!

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Seal Science, Inc. $$$

Hackettstown, NJ  |  908-227-6857

East Coast Shielding manufactures and distributes EMI/RFI shielding materials. We offer conductive elastomers, wire, shield strips, wire mesh, air ventilated panels, EMI gaskets and more. Call us today so we can talk one-on-one to ensure that your EMI shielding needs are met.

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East Coast Shielding $$$
placeholder image Spira Manufacturing Corporation Sealing Devices Inc. Captor Corporation Seal Science, Inc. East Coast Shielding

Magnetic shielding isolates equipment from external magnetic fields using highly permeable magnetic alloys. Rather than blocking the magnetic field, these materials draw the magnetic field in and absorb it, protecting whatever they are wrapped around. Because of this, magnetic shields are usually constructed as a closed container around the device that they are built to protect.

Magnetic Shielding Enclosures Magnetic Shielding Enclosures - Compac Development Corporation

Sometimes these shields consist of layers so that no single layer becomes saturated by electromagnetic frequencies and is consequently unable to deal with high field strengths. Some sources of unwanted magnetic interference can be the earth's natural magnetic field, thunderstorms or improperly grounded electric cables that act as antennas.

Magnetic shielding has to be used in a variety of industrial and commercial security applications. In recording and playback applications like home video, a TV studio or a closed circuit, magnetic field interference can prevent functional operation if no shield is present.

Military and commercial equipment like aircraft carriers need magnetic shielding to ensure that the data presented on their radar is accurate. Because the various mechanical and electronic components of an aircraft are closely fitted together due to space limitations, the performance of a radar tube can be distorted by the signals emitted from nearby tachometers which may indicate a rotating magnetic field.

A radar display reflects a shift in position each time an aircraft changes directions or altitude. A magnetic shield enclosure prevents other signals from interfering with the radar's important function and producing incorrect information. If the data generated by a radar is not accurate, the results could be devastating since pilots rely so heavily on radar in low-visibility and unfamiliar conditions.

Magnetic Shielding Informational Video