Custom Concertina Razor Wire Fence Factory
Concertina razor wire fences form a continuous, helically wound barrier that combines sharp blades with a high‑tensile core wire to deter climbing and cutting attempts. The geometry of the coils
Request a QuoteCustom Concertina Razor Wire Fence Factory
Concertina razor wire fences form a continuous, helically wound barrier that combines sharp blades with a high‑tensile core wire to deter climbing and cutting attempts. The geometry of the coils creates multiple overlapping points of contact, making forced entry significantly more time‑consuming and hazardous for intruders.
The core wire is manufactured from cold‑drawn low‑carbon steel, typically ranging from 2.5 mm to 3.5 mm diameter, and is galvanized or coated with zinc‑aluminum alloy to achieve corrosion resistance suitable for outdoor exposure. Blade thickness is usually between 0.5 mm and 0.8 mm, with a blade height of 22 mm to 28 mm measured from the core wire.
Design flexibility begins with coil diameter, which can be adjusted from 450 mm to 600 mm to control the spacing between adjacent loops and the overall footprint of the fence line. Pitch, defined as the distance measured along the core wire from one blade tip to the next, is customizable between 100 mm and 150 mm to meet specific security gradients.
Manufacturing proceeds through a precision forming line where the core wire is drawn, cleaned, and passed through a series of rollers that simultaneously wrap the razor‑shaped steel strip around it. Tension is monitored continuously to maintain uniform coil tightness, and the finished product is cut to length using hydraulic shears that preserve blade integrity.
Quality control incorporates dimensional verification at three stages: core wire diameter after drawing, blade geometry after stamping, and final coil dimensions after forming. Tensile strength of the core wire is tested to confirm values exceeding 550 MPa, while coating adhesion is assessed via salt‑spray testing per ASTM B117 for a minimum of 500 hours without red rust.
Typical applications include perimeter security for correctional facilities, military installations, substations, and critical infrastructure where a formidable physical deterrent is required. The concertina format allows rapid deployment on uneven terrain, as the coils can be stretched and anchored to posts or existing barriers without extensive groundwork.
| Parameter | Typical Range / Value | Notes |
|---|---|---|
| Core Wire Diameter | 2.5 mm – 3.5 mm | Cold‑drawn steel, galvanized or Zn‑Al coated |
| Blade Thickness | 0.5 mm – 0.8 mm | Hardened steel strip, blade height 22 mm – 28 mm |
| Coil Diameter | 450 mm – 600 mm | Determines loop spacing and fence height |
| Pitch (Blade‑to‑Blade) | 100 mm – 150 mm | Adjustable to achieve desired security density |
| Tensile Strength (Core) | ≥ 550 MPa | Measured per ASTM A370 |
| Coating Type | Hot‑dip Galvanized, Zn‑Al Alloy, or PVC | Selected based on environmental corrosivity |
| Standard Length per Coil | 10 m – 20 m | Custom lengths available on request |
Frequently Asked Questions
- Can the coil diameter and pitch be adjusted for specific site constraints?
- What information is needed to generate a quotation (e.g., total length, coating type, post spacing)?
- Which materials are available for the core wire and blade strip?
- How is quality inspected before shipment?
- What packaging methods are used to prevent deformation during transit?
- What is the typical production lead time for a standard order?
- Are samples available for evaluation?
Request a Quote
Our engineering team is ready to review your project specifications and provide a detailed technical proposal. Please share the required dimensions, coating preference, and any special certifications needed.
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