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A composite of metal sheeting impregnated with an elastomer to yield a highly conductive, yet resilient Gasketing material for EMI/RFI shielding as well as an environmental seal. A selection of Woven aluminium wire, expanded aluminium or monel sheet impregnated with silicone, fluorosilicone or neoprene rubbers are available. Expanded Monel wire is also available without the elastomer filler for use in applications where an environmental seal is not necessary. The material can be supplied as continous sheet or as die cut gaskets to customers requirements.
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Elastomer core gaskets are made of a resilient rubber core,
knitted over with layers of wire mesh (the standard is two
layers). The knitted wire element provides EMI shielding
effectiveness, while the elastomer core enables the gasket
section to recover more readily, following repeated
compression. Elastomer core gaskets are used where the
application requires a conformable EMI seal and even where a
dust protection is needed.
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These gaskets are realized wrapping with one or more metallic wire mesh a foam (polyurethane, neoprene and silicone).
To use where the closing are irregular or where a weak is desired strength of closing, but also a certain degree of protection is in demand from the dust or damp.
The installation can simply be effected for attrition or, in absence of throats on the wisecracks, through adhesive strip.
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Standard RB METALLIC RIBBONS are made by knitting one or several wires of an identical or different types.
The wires used are monel, tin-plated copper, tin-plated copper-clad steel.
Other metals are used for specific shielding : aluminium, stainless steel, pure copper, inconel… For certain
applications, there may be up to 6 wires, depending on the gauge of the mesh.
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Wire mesh gaskets are designed to offer a high level of attenuation. Their knit construction offers enhanced long lasting resiliency and is an ideal material for highly sensitive components where environmental sealing is not a concern. These gaskets are available in a variety of materials using utilizing versatile mounting options.
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SPRINGMESH™ Highly Resilient Mesh Gasket
SPRINGMESH™ gaskets feature a highly resilient, hollow knit, tin-plated steel mesh that provides excellent recovery from high compressive forces. Compression set is less than 30% at 80% compression. Round profile SPRINGMESH gaskets are ideally suited for gasket-in-a-groove applications, such as in cast housings for outdoor CATV boxes, NEMA enclosures with outboard environmental seals, and industrial enclosures.
POLASHEET®, POLASTRIP® Composite Gasket
POLASHEET® and POLASTRIP® gasketing are composite EMI shielding and weather sealing materials. Monel wire embedded in silicone and oriented perpendicular to mating flange surfaces provides the EMI shielding. Either solid or sponge silicone can be specified as the weather seal. Wires are crimped for additional resiliency. POLASHEET materials are supplied in sheet form from which gaskets are easily die-cut. POLASTRIP gaskets are provided in strip form or as finished custom gaskets fabricated from strips.
COMBO STRIP® Wire Mesh and Elastomer Weather Seal
COMBO STRIP® gaskets combine Chomerics' MESH STRIP gasketing in parallel with an integral elastomer weather sealing strip. They are available with or without adhesive backing in a broad range of standard cross sections. COMBO STRIP gaskets are recommended for applications requiring a weather seal in addition to EMI shielding. The standard mesh is monel or Ferrex (tin-plated, copper-clad steel) wire.
METALASTIC® EMI Gasketing with Pressure Seal
Chomerics METALASTIC® gasketing is a composite EMI and pressure seal in thin sheet form. Shielding is provided by woven aluminum mesh. Pressure sealing is achieved by neoprene or silicone elastomer impregnated in the mesh. PORCUPINE METALASTIC® gasketing is available in two forms: EMI shielding with pressure seal and EMI shielding only. Shielding is provided by expanded monel foil. For pressure sealing properties, the expanded monel is filled with silicone elastomer. All METALASTIC gasketing is available in sheets and die-cut shapes.
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Wire mesh gaskets are a very versatile and proven style of shielding. Wire mesh gaskets have a great variety of uses and there are several popular types to choose from depending on shielding or environmental requirements. Knitted gaskets can be made from a variety of metal wires, including monel, tin plated-copper clad-steel or aluminum. Cost-effective for low cycling applications with high shielding effectiveness over a broad frequency range. Available in a wide variety of sizes and shapes, the knit construction provides long lasting resiliency with versatile mounting options. Available with elastomer gasket for moisture and dust sealing.
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Strain relief fittings in all popular thread types and sizes for a
reliable low-ohm shield used for electrical equipment in hazardous
locations with protection "e" according to EN 50014 and
EN 50019:
- Machine, apparatus and plant equipment.
- Measuring, control and feedback systems
- Control panels
- Railroad cars and vehicles
- Power plants (hydro, gas, coal or wind)
Also used in all areas where besides a reliable seal, high
pull-out resistance and anti-rotation provisions, a dependable
contact with the cable shield is required.
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UNI Dicht EMC cable gland
multiple variations for highly specialised applications
The compact PFLITSCH EMC cable connection type UNI HF with the Iris spring and taper rings are designed for the EMC bonding of screens. The design principle reduces installation time significantly and achieves high damping effects. When the pressure screw is tightened, the Iris spring is guided by two tapers until it encircles the cable screen and contacts it securely through 360°.
The advantages:
o perfect HF sealing
o secure 360° bonding
o EMC protection to terminal point
o Continuous or stripped braid
o Pg and M threads
o individual variants
o compact design
o fast and safty installation
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Specifically designed for use in EMC-protected areas. EMC means Electro-Magnetic Compatibility. The optimal screening effect is achieved when these PURWIL® EMC cables (which include a special sheath) are used together with our EMC screwed joints.
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Inter-8® Weave Cable has applications to many interference problems. Current-carrying conductors generating interference fields can be replaced with INTER-8 WEAVE cable to substantially reduce radiation. In low impedance circuits where external interference results in disturbing signals, Inter-8® Weave Cable will reduce the circuit sensitivity to the external fields. Among typical applications are cable connections to strain gages, thermocouples, photoelectric detectors, audio coils and transformers, piezoelectric transducers and preamplifiers.
SPIRA-SHIELD is flexible conduit that provides high permeability magnetic shielding for sensitive cables and conductors. Constructed of .010" thick CO-NETIC AA Alloy, SPIRA-SHIELD provides greater attenuation than braided sleeving and also furnishes physical protection. Among typical applications are ground support and communication equipment, shipboard control systems, audio-level interconnections, sensitive instrumentation and aerospace apparatus.
Co-Netic® Braided Sleeving, constructed of 36 or 34 AWG CO-NETIC AA high permeability wire, provides superior flexibility compared to foil that is spiral or channel wrapped around cable.
CO-NETIC AA wire in .005" diameter is widely used in magnetic shielding braid applied over cables. All gauges have applications where high permeability, low coercive force and ferromagnetic properties are required. CO-NETIC AA wire is corrosion resistant and has an affinity for solder. Meets MIL-N-14411, Composition I.
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New Progress EMC Series 85 cable gland
Low-impedance termination, variable shield tap through 360º with low transfer impedances
The development of the new cable gland – the Progress EMC Series 85 – had one primary aim: to improve the shield clamping area for each cable gland type significantly to give users more flexibility.
For this purpose a completely new collet chuck was developed. Ingenious segmentation of the collet chuck gives it optimal shield contact. The individual segments slide together when the cable gland is mounted to produce concentric shield termination (see figure). This guarantees vibration-proof implementation that is pull-out resistant.
These new, innovative EMC cable glands (patent pending) make it possible to cover a large shield clamping area with very few types.
Progress EMC Series 85 cable glands are ideal for high leakage currents. For this reason they are particularly well suited for use in power engineering, railway technology, and plant engineering among other areas.
The new type series includes M16 to M63 metrical versions for shield diameters of 3 - 44 mm and Pg 11 to Pg 29 for shield diameters of 6 - 33 mm; these are available from stock.
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Screened cable entry glands that provide an excellent EMI/EMP shield when passing a screened cable into a screened enclosure.
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Cable glands, fittings and flexible conduits
A new series of cable glands, fittings and flexible conduits will be offered to complete our offer of multipole connector enclosures.
The offered product series are:
- complete metallic or insulating cable glands, with longer thread, semi-cable glands, EMC execution, cable clamps, locking plugs, reducers and lock nuts
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The Pro-term Spring-clamp miniature is desined for small shielded cables with foil/braided overall or individual screens/any combination.
The system has nylon 6.6 outer parts and nickel plated aluminium termination area.
key features are:
* IP68 environmental sealing
* Fire safe (UL94-V0 and zero halogen)
* Corrosion resistant.
* OK for electrical double insulated products
* Quick and easy to install
* Good cable retention
* Low cost for high quantity use.
* Small size and low weight
* Available in 2 sizes: size 1 - 3,5~7mm dia, size 2 - 6~9mm dia
patent pending
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This is a 360o grounding system with low impedence shield characteristics.
The fitting incorporates a platic Nylon 6.6 outer and a Nickel plated aluminium termination area.
Features are:
* Fire safe (UL94-V0 and zero halogen)
* wide cable range 7.5mm~16mm diameter,
* IP68 environmental sealing
* Very easy and quick to fit,
* Corrosion resistant,
* For cables with stainless steel braids (power cables) and copper braids-EMC
* The thread entry is ISO metric 20mm.
patent pending.
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. Low pressure: from 1 to 7 bars
. Electromagnetic hardening
. Watertightness, with gases and the air
. Fire resistance, to the explosions, the chemicals
. Radioactive containment
. Resistance to the vibrations, the rodents, the cold heat/
. Classification marinades has and H
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Leader Tech's oriented wire gaskets are fabricated using individual wires in a silicone solid or silicone sponge Elastomer. The wire provides the EMI shielding and the Elastomer provides the environmental seal.
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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 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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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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Metex mesh gaskets have been proven, in aerospace, avionics, automotive and electronics systems, solving the most demanding shielding and sealing problems.
Key features of the product include: high-attenuation, suitability for harsh environments and extreme temperatures, custom profiles and densities, and a wide range of materials.
By choosing the correct material, wire diameter, mesh density and mesh profile, knitted wire mesh can be used to solve an extremely wide range of shielding, gasketing, electrical grounding, vibration and filtration design applications.
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