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Beryllium Copper makes an ideal gasket material due to its high
conductivity giving good shielding effectiveness. Excellent spring
features and resistance to compression set make them ideal for
high cycle applications in both compression and in a wiping action.
Various profiles are available to meet design needs and gaps of
0.25 to 10.2mm can be accommodated.
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Due to their outstanding material
and electrical characteristics,
beryllium copper finger of different
shapes and dimension are used in
the following industries:
Broadcasting, telecommunications
industrial control, measuring and
instrumentation, aerospace
technology, nuclear physics and
data processing. Contact fingers and
rings made of beryllium copper are
used at all ratio and microwave
frequencies, for instance as contacts
to valves and tuning components as
well as for shielding.
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Leader Tech offers many standard off-the-shelf EMI Gaskets as well as the engineering and custom manufacturing experience to help you solve your application. Whether you need one prototype or a large quantity order, our Team at Leader Tech is available to respond to your needs.
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Commonly used for enclosure doors, shielded room doors and architectural seams where wiping action and large compression distances are needed.
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Finger gasket is made of complete metal material and has the lowest electric resistance for EMI shielding.
The raw material, beryllium copper has great stability itself.
Finger gasket is produced by own special manufacturing method.
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SPRING-LINE™ BeCu Spring Fingers and Ground Strips
SPRING-LINE™ beryllium copper gaskets combine high levels of EMI shielding effectiveness with spring-finger wiping and low closure force properties. Beryllium copper's high tensile strength, and superb electrical conductivity are ideal for shielding over a broad frequency range. SPRING-LINE gaskets are available in bright tin, bright copper and bright nickel finishes. Standard length (16 inch, 406 mm) and custom length strips are available in a wide variety of cross sections. For low compression grounding contacts, individual fingers are available with pressure sensitive adhesive for convenient pick-and-stick application.
SPRING-LINE stainless steel card cage gaskets
Designed to provide EMI shielding to the expansion slot area of PC and Server chassis. Chomerics' standard card cage series is available for PCI/EISA slot configurations from 1 to 10. The gaskets can also be modified to include additional slots and variable pitch designs. Designed for cost effectiveness and ease of installation, Chomerics' card cage gaskets fit into most existing chassis with-out modifications. The contact fingers are designed to minimize any snagging during the installation of cards. SPRING-LINE card cage gaskets are available in both standard and custom configurations, including tin-plating, to help meet demanding shielding requirements.
METALEX™ - EMI Frame Gaskets and Strips
These frame-mounted gaskets incorporate a length of MESH STRIP gasketing (with or without elastomer core), securely crimped into the edge of extruded aluminum mounting frames. They are available as ready-to-mount welded aluminum frames, fabricated lengths, or standard 7.5 ft. lengths. In addition to allowing simple mechanical mounting, the aluminum frames function as positive compression stops, preventing over-compression of the gaskets.
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Alco Metal Mount is a rigid EMI aluminum strip with a wire mesh and or elastomer gasket secured into the groove of the extrusion. Alco-Knit gaskets are supplied in standard wire alloys in several configurations and size to meet specific shielding requirements. Alco-Knit Elastomer Core gaskets may be applied for environmental pressure sealing. Alco-Knit or Alco Elastomer Core gaskets may be applied in any combination to one or both sides of the strip. Alco Metal Mount strips are fabricated with specific hole size, location, slots and countersinks for alignment. Ready-to-mount strips are attached with rivets, fasteners or spot welded to flange surfaces. Lengths range from two inches to eight foot lengths and come in multiple profiles. Strips are supplied unfinished or Chromate Coated per MIL-C-5541 Class 1or 3 to enhance shielding performance and corrosion resistance. Alco Metal Mount Strips add structural strength to enclosures and perform as a positive compression stop where a rigid gasket is required.
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