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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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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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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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Advanced ElectroMagnetics, Inc. (AEMI), developed the Absorbing Wall Module, which can be used within the cavity to absorb interfering signals on a selective basis, in order to help reduce moding problems. Basic features include portability which by simple movement will change moding conditions with changing frequencies.
The Absorbing Wall Module also eliminates moding hot spots and resonances while providing good wide angle performance. The use of EM materials for the modules provide low frequency performance, which will accommodate MIL-STD 461/462 applications.
The wall module is constructed by applying absorber materials to 24 gauge sheet metal. This permits increased efficiency in absorbing characteristics and also allows the user to shield the test environment from personnel or equipment behind the wall modules.
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The broadband pyramidal absorber is manufactured in two basic geometrics, depending upon size and performance requirements; Conventional right pyramid and twisted pyramid.
The AEP-4 to AEP-48 absorbing materials are based upon a conventional pyramid having a square base with a uniform base thickness, tapered to a point.
The AEP-72 to AEP-96 absorbing materials are based upon a unique geometry with the peak twisted 45 degrees so that there are alternate peaks and valleys, increasing the performance and reducing the mismatch at the base transition.
This unique feature increases wide angle performance as well as increasing the mechanical support of the peak. This product configuration is also available in 36" and 48" sizes upon request.
The fabrication process differs with each of the two geometries. Both procedures have been established to ensure that complete impregnation with the dielectric lossy material and the fire retardant chemicals are achieved.
The standard material base size is 2' x 2'.
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Product Name： Microwave pyramidal absorber
Used for anechoic chambers ,made by PU foam and carbon.The size and specification,could accept customer design.
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The broadband wedge materials have been used successfully in the design of tapered chambers as well as facilities which must have low wall reflections. AEMI manufactures a full line of wedge materials which fully complement our AEP series of compliment absorbers. The anechoic performance of the wedges match those of the pyramids with the only difference being that (due to the inherent shape of the wedge), they are polarization sensitive.
These materials are used to direct energy in a given path so that it may be efficiently absorbed by large, high performance materials which compose the facilities termination.
The company manufactures only NRL fire retardant versions of its broadband absorbers which meets the requirements of NRL. specifications 8093.
Standard material base size is 2' x 2' or 2' x 4' depending upon the application.
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A current-carrying twisted pair is superior to parallel conductors, but is of limited effectiveness in reducing electromagnetic radiation. Correspondingly, the twisted pair is limited in avoiding unwanted pickup of external H-fields (D.C. to 100 KHz).
Inter-8® Weave Cable substantially reduces magnetic field pickup and radiation compared with conventional twisted pair cable. Our cable involves four separate conductors braided into interlocking loops and is a patented design of Magnetic Shield Corporation. In application, adjacent conductors 90º apart are connected together, effectively providing a two conductor circuit.
Because the Inter-8® Weave Cable design incorporates parallel conductors, the cable provides double the current carrying capacity of a two wire cable of the same AWG size. In contrast to conventional twisted pair, INTER-8 WEAVE does not kink or untwist when left free.
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The EMCFIX system from PMA AG covers fittings for optimum connecting solutions for screened cables or screening braids. In combination with metal braids of the EMC product line, control and signal cables are shielded from external disturbances. Disturbance influences as electro magnetic fields and electrical impulses are conducted via the screening braids and the EMCFIX connectors to the housing. High screening effect and low coupling resistance characterise the system. The connectors offer excellent screening values to follow the EU guidelines.
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A complete range of heat shrinkable tubing, shielded or not,
with or without a track systems, sleeving to meet your protection needs...
Watch demonstration patented TRACK SYSTEM
On : http://www.sertim.com/en_zipper/index.php
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A large and full range of solutions with track system,
to resolve EMI/RFI problems.
"Shielded" ZIPPER-TECHNIK is a quick, effective and economical way to solve many interference problems which require shielding to reduce the effects of EMI/RFI especially in wire and cable applications.
Most standard ZIPPER-TECHNIK Jacket materials can be combined with a choice of shielding materials (laminated or sewn inside), to provide a versatile shielding system to meet or exceed almost any requirement.
All ZIPPER-TECHNIK shielding includes a patented, 360° shielding and grounding construction.
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Carbon-plated conductive fabric can solve some appearance problems such as stains, spots, etc. It also makes the products more resistant to oxidation. Accordingly, the long-term service life of the products is guaranteed.
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What differentiates ATI-Circular EMI Vents from other conventional panels is the shape.
Billets, rods, bar and plate stock are fabricated into rigid frames for structural support.
Core materials of honeycomb in assorted thickness and cell size, 3-layer screen, multi-layered screen, rigid grill and combinations may be selected for circular vent assemblies. EMI gaskets and environmental seals can be applied. Plating options enhance shielding effectiveness. Through hole locations are customized for easy surface mount installation with standard 8-32 rivnuts or .203 diameter holes. ATI Circular Vent Panels are designed for a precise fit of round openings on mounting walls or enclosures. Circular Vents are ideal in applications where a conventional rectangular vent may impede mounting space. Alco's special circular vent process can be fabricated in ATI 90° Cell, ATI-Dual Stack or ATI 3-Layer designs.
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CLIP-ON TRICAT
black E.P.D.M.
Harsh environment
Temperature tolerance : -40 to +120°C
Inflammable : M2 classification UL94 V-1
Mesh : tin-plated copper-clad steel, monel or galvanic steel
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This style combines a high dynamics range of deflection , very low compression force and a long service life after repeated compressions . Provides a firm grip on the mounted panel section . Ideal for situations where adhesive attachment is not desired .Simple , quick clip –on assembly
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The TISCAT is made of an elastomer sponge core covered with a metal polyester jacket.
The TISCAT is supplied with a pressure-sensitive adhesive which provides an easy, fast solution to install the TISCAT.
It's earthing properties are also good.
Sponge elastomer core : polychloroprene, polyurethane…
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Leader Tech's Electrically Conductive Elastomer materials are ideal for customer applications requiring both excellent EMI shielding and environmental sealing across a wide temperature range. Conductive Elastomer compounds are available in standard and custom configurations including extruded, molded, sheet stock, and die cut gaskets.
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SSI's engineered electrically conductive elastomers (conductive rubber) provide sealing solutions for mission critical applications that require both environmental and electromagnetic interference, electrostatic discharge, and radio frequency shielding. The incorporation of elastomers with alloys creates a multi-material compound capable of providing electrical shielding with the superior physical properties of an engineered elastomer. SSI's material engineering team utilizes a variety of elastomeric binders combined with a large array of conductive fillers to custom design solutions for all types of applications in the aerospace, semiconductor, and medical device industries.
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Over-Molded Cover Seals
Enclosure shielding and environmental sealing performance are improved in a number of ways when conductive elastomer gaskets are molded directly to a flange surface instead of being adhesive bonded or mechanically attached. Over-molded gaskets provide the optimum seal profile, achieving more gasket deflection with limited closure force when compared to flat, bonded gaskets.
Molded D- and O-Rings
Parker Chomerics' D-ring and O-ring conductive elastomer gaskets provide moisture/pressure sealing and EMI shielding when compressed in a properly designed groove. They are interchangeable with standard non-conductive seals of the same dimensions.
Custom Molded Gaskets
Parker Chomerics can mold conductive elastomer EMI gaskets to fit practically any application. Custom molded elastomer gaskets can include tight corners, retention bumps and other special geometries. Many other features can be added, such as fabric or mesh reinforcement, pressure-sensitive adhesive, fasteners and compression stops. Non-conductive silicone environmental seals can be bonded to or co-molded with conductive EMI shielding elastomers.
Connector Gaskets
Chomerics' die-cut conductive elastomer gaskets provide shielding and environmental sealing when inserted between a connector flange and their mating surfaces. A variety of Mil-Standard mounting flange EMI gaskets are available, along with interfacial EMI seals and jam nut seals. Chomerics also provides D-subminiature rectangular gaskets in a complement of shell sizes from 9 to 50 pin.
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Conductive Non-Woven textile appears as compact felt, characterized by a less volumetric resistivity, very good punching and competitive price with respect to other materials, above all for medium/great (>5.000 pieces).
Such materials can be supply as semifinished in rolls or various height and length spools for following customer machining or punching on drawing.
Their use is recommended when it take a good Shielding Performance, electrostatic discharges protections or grounding, without particular environmental requirements.
Typical applications are: cable flanges, panel or plate connectors, permanent closings on cabinets and easy to apply for shielding rooms.
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Abnormity EMI gasket manufactured in our company can offer high shielding effective with low resistivity ,our company developed molding machine which made the production efficiency of abnormity gasket improved more and more compare with some famous enterprises,Regarding to some products using inside body froth of affuse which need enormous quantities order to start products ,but our company can complete low batch of order accroding to adjust our molding machine .
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Conductive foam offers unmatched compression set performance while providing a relatively soft Compression Load Deflection (CLD) curve. Lower CLD properties further reduce the potential for distortion while in application. When the gasket is compressed greater than the recommended 50%, compression force is reduced by half.
A popular Laird Technologies product in this category is Electro-Seal conductive elastomers. Electro-Seal conductive elastomers are ideal for both military and commercial applications requiring both environmental sealing and EMI shielding. Compounds can be supplied in molded or extruded shapes, sheet stock, custom extruded or die-cut shapes to meet a wide variety of applications. Electro-Seal conductive elastomers provide shielding effectiveness up to 120dB at 10GHz.
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Fabric over foam gaskets are made of a resilient foam core, bonded over with conductive fabric. More than 70 different profiles offer unlimited selection for any application. Some profiles contain rigid inserts. Metallized conductive fabric bonded to resilient core (available in urethane foam, neoprene sponge) offers a good shielding efficiency and works as a seal to block air, light and dust.
- UL94-V0 certified
- RoHS compliant
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Conductive urethanes are made by three layers, PET + PU + PET, heat sealed between them and made conductive through chemical-galvanic bath (Cu+Ni).
They appears as soft mat (width 30cm), sufficiently compact.
Able to realize punching gaskets for flanges and connectors, are also particularly suitable to realize shielding cells (compartimentation).
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Trademark EMI gasket is a registered trademark of our company ,It's manufactured by PU foam wrapped with conductive fabric which been exported from Japan high technology enterprise ,can offer high shielding effective with low resistivity.
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When your designs require EMI gaskets that exhibit high attenuation and low closure force, Metex Conductive Fabric gaskets are an ideal choice.
By combining a soft core with conductive fabrics, we have created a gasket that will provide >65 dB attenuation at 1 GHz, and compression loads under 4 lbs. per inch at 25% deflection. Low compression forces allow for lighter, less expensive enclosure designs.
Conductive Fabric gaskets are the ideal gaskets to use with conductive coatings that can be scratched or damaged by other more abrasive gasket materials. The conductive fabrics available include abrasion-resistant copper and nickel.
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EMI shielding
