Concertina Razor Wire
Concertina wire, alternatively known as coiled barbed tape or Constantine wire, consists of razor-sharp blades arranged in large helical coils designed to expand in an accordion pattern. The interconnected loops are strategically joined at specific circumferential points, creating an impenetrable barrier with no openings wide enough for human passage. As one of the most effective security solutions, this specialized razor wire sees extensive deployment in high-security environments, including national border fortifications and military installations.
The defining characteristic of concertina wire lies in its heavy-duty fastening clips that securely maintain the razor wire’s coiled configuration. Standard tools or manual force cannot separate these specially designed clips, which come in two distinct types. Fabricated from galvanized steel, these fasteners demonstrate exceptional resistance to weathering and moisture, ensuring long-term structural integrity and reliable perimeter security performance.
Structural Features:
Material: Razor barbed wire is mainly composed of high strength steel wire and sharp metal blades, which are usually made of zinc or stainless steel to provide extra corrosion resistance.
Blade Style: The blades can be designed in different styles and sizes according to security requirements, such as long barbed, short barbed, medium barbed, fishhook shaped, etc., in order to increase the difficulty of traversal and deterrent effect.
Configuration Form: Razor barbed wire can be used alone or combined with other fences, commonly found on top of fences or near the ground to form double or even multiple security barriers.
Concertina Wire Coil Specification
Multiple blade models available: BTO-10, BTO-12, BTO-18, BTO-22, BTO-28, BTO-30, CBT-60, CBT-65.
| Coil diameter (mm) | Spiral turns per coil | Clips per coil | Recommended stretch length (m) |
|---|---|---|---|
| 300 | 33 | 3 | 4 |
| 450 | 54 | 3 | 8-10 |
| 610 | 54 | 3 | 10-12 |
| 730 | 54 | 3 | 15-20 |
| 730 | 54 | 5 | 10-12 |
| 900 | 56 | 5 | 13-15 |
| 980 | 54 | 5 | 10-15 |
| 980 | 54 | 7 | 5-8 |
| 1250 | 54 | 7 | 4-6 |
| 1500 | 54 | 9 | 4-6 |
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