Buy Concertina Wire
Anping Enzar Metal Products Co., Ltd. is a professional manufacturer of concertina wire and razor wire. Since its foundation in 2000, our company has been focus on satisfying customers' requirements. We constantly modify our products and develop new models to keep up with the market.
buy concertina wire
Razor wire features pointed barbs at regular intervals along the central strand. If a person or an animal that is trying to go through barbed wire fence may get cuts and grazes. Concertina wire has sharp blades which can slice deep into your flesh and cause fatal injuries sometimes.
Barbed wire is available as plain steel or galvanized, while concertina wire can be manufactured by stainless steel to prevent from rusting to bluntness. However, stainless steel concertina wire is expensive and used as underwater security barrier.
Barbed wire is widely used in field fence, chain link fence and welded wire fence and provides general security. For example, barbed wire is often installed on top of cattle fence to keep cattle in bound.
Concertina wire or Dannert wire[1] is a type of barbed wire or razor wire that is formed in large coils which can be expanded like a concertina. In conjunction with plain barbed wire (and/or razor wire/tape) and steel pickets, it is most often used to form military-style wire obstacles. It is also used in non-military settings, such as when used in prison barriers, detention camps, riot control, or at international borders.During World War I, soldiers manufactured concertina wire themselves, using ordinary barbed wire. Today, it is factory made.
In World War I, barbed wire obstacles were made by stretching lengths of barbed wire between stakes of wood or iron. At its simplest, such a barrier would resemble a fence as might be used for agricultural purposes.[2] The double apron fence comprised a line of pickets with wires running diagonally down to points on the ground either side of the fence. Horizontal wires were attached to these diagonals.[2]
More elaborate and formidable obstructions could be formed with multiple lines of stakes connected with wire running from side-to-side, back-to-front, and diagonally in many directions. Effective as these obstacles were, their construction took considerable time.
Barbed wire obstacles were vulnerable to being pushed about by artillery shells; in World War I, this frequently resulted in a mass of randomly entangled wires that could be even more daunting than a carefully constructed obstacle. Learning this lesson, World War I soldiers would deploy barbed wire in so-called concertinas that were relatively loose. Barbed wire concertinas could be prepared in the trenches and then deployed in no-man's-land relatively quickly under cover of darkness.
There was what might be called a concertina craze on: innumerable coils of barbed wire were converted into concertinas by the simple process of winding them round and round seven upright stakes in the ground; every new lap of wire was fastened to the one below it at every other stake by a twist of plain wire; the result, when you came to the end of a coil and lifted the whole up off the stakes was heavy ring of barbed wire that concertina'd out into ten-yard lengths.[3]
Concertina wire packs flat for ease of transport and can then be deployed as an obstacle much more quickly than ordinary barbed wire, since the flattened coil of wire can easily be stretched out, forming an instant obstacle that will at least slow enemy passage. Several such coils with a few stakes to secure them in place are just as effective as an ordinary barbed wire fence, which must be built by driving stakes and running multiple wires between them.
Oil-tempered barbed wire was developed during World War I; it was much harder to cut than ordinary barbed wire. During the 1930s, German Horst Dannert developed concertina wire of this high-grade steel wire.[5] The result was entirely self-supporting; it did not require any vertical posts.[6] An individual Dannert wire concertina could be compressed into a compact coil that could be carried by one man and then stretched out along its axis to make a barrier 50 feet (15 m) long and each coil could be held in place with just three staples hammered into the ground.[7]
A barrier known as a triple concertina wire fence consists of two parallel concertinas joined by twists of wire and topped by a third concertina similarly attached. The result is an extremely effective barrier with many of the desirable properties of a random entanglement. A triple concertina fence could be deployed very quickly: it is possible for a party of five men to deploy 50 yards (46 m) of triple concertina fence in just 15 minutes. Optionally, triple concertina fence could be strengthened with uprights, but this increases the construction time significantly.[7]
Concertina wire is sometimes mistakenly called "constantine" wire. Constantine probably came from a corruption/misunderstanding of concertina and led to confusion with the Roman Emperor Constantine. This, in turn, has led to some people trying to differentiate between concertina wire and constantine wire by assigning the term constantine wire to what is commonly known as razor wire. In contrast to the helical construction of concertina wire, razor wire, or less commonly, constantine wire, consists of a single wire with teeth that project periodically along its length.[10]
Concertina wire security barrier is by far one of the most perfect physical obstacles. Security barrier made of galvanized steel strip thickness of 0.55 mm - 1.5 mm, having a double-edged, symmetrically spaced, directed spines, and reinforced with high carbon galvanized wire diameter of 2.65 mm, 2.8 mm, 3.0 mm. Nominal diameter of the razor concertina is 450 mm, 500 mm, 600 mm, 730 mm, 900 mm, 980 mm (after stretching, the diameter is reduced by 5-10%).
Cross concertina wire coil is two pieces of stainless steel razor wire or zinc-coated wire bound together by clips to make it stronger. This galvanized wire tape compresses the core, and adjacent turns of the cramp in five equidistant points on a circle. Total installed 3 or 5 rows of staples, so that it becomes formidable concertina, springy, spatial design. The spiral intersecting barbed wire presents an intersecting shape after opening. After stretch and installation, concertina creates a fixed and strong spatial structure. In order to overcome this type concertina wire, it must be cut at least three points.
Double Concertina Razor Coil includes two razor concertina coils with different diameters, and small diameter concertina is included in the large diameter concertina. Three nodes connect the two concertina razor. Double concertina razor wire has more beautiful appearance and better protection than other razor mesh.
Concertina coiled security barrier is installed on the ground or an existing fence to create high performance physical obstructions extremely difficult to overcome. The main advantage of concertina razor wire is that its design is able to retain their protective properties after damage in a few places. And the concertina wire fence is easily installed and disassembled, allowing you to use it repeatedly. This is the cheapest way to protect property from outside intrusion.
Barbed tape/razor wire (concertina type with oppositely wound helices) composed of high-strength galvanised steel wires (tensile strength of 800 kg). The blades will serve to intruders attempting to breach the wire. Wire to be installed on mounting adapted to the enclosure walls. - loop diameter 750 mm and strand diameter 4 mm.
As a specialized and leading manufacturer in security protection field, we produce a wide range types of razor wire concertina. Besides, all our products are from factory outlet, so we can give you the most competitive price. And we are looking forward to cooperating with you!
Barbless Concertina Coils are specifically designed as a deterrence against intrusion while eliminating any danger associated with sharpness of razor wire With its quick and easy deployment, the Barbless Concertina Coils instantly create a safe and effective protective barrier.
Our Concertina Razor wire is made up of U.S. Military Galvanized steel. While it is similar to barbed wired in construction, it differs by featuring sharp edged blades made from steel tape, unlike barbed wire.
Razor wire is a mesh of metal strips with sharp edges.it is much sharper than the standard barbed wire; it is named after its appearance, but is not razor sharp. The points are very sharp and made to rip and grab onto clothing and flesh.
The razor tape is stamped by galvanized steel sheet or stainless steel sheet,and core wire is high tension galvanized iron wire or stainless steel wire. and then razor tape and core wire are pressed together by Concertina Razor Wire machine.
U.S. Customs and Border Protection Special Response Team officers are seen through concertina wire after the San Ysidro Port of Entry land border crossing was temporarily closed to traffic in Tijuana, Mexico in November.
"Operation Lone Star has currently constructed more than 17 miles of concertina wire along the South West border to continue to prevent, detour, and interdict transnational criminal activity and illegal migration," the Texas Military Department told Fox News in an exclusive statement. "The intent is to install concertina wire along state property and private property with consent of the property owners." 041b061a72
