China Flat Wrap Razor Wire Fence Factory

Flat wrap razor wire consists of a high‑tensile steel core formed into a flat strip with evenly spaced barbs that are welded or mechanically locked onto the strip. The resulting barrier provides a continuous, low‑profile obstacle that resists climbing and cutting while maintaining a relatively small footprint compared to traditional round‑wire razor tape.

Material Composition and Corrosion Protection

The core wire is typically cold‑drawn low‑carbon steel with a diameter ranging from 2.0 mm to 3.0 mm, selected for its yield strength (≈350 MPa) and ductility. To resist environmental degradation, the wire undergoes hot‑dip galvanization (minimum zinc coating 55 g/m²) followed by an optional PVC or PE overcoat (thickness 0.3 mm–0.5 mm) that adds UV stability and colour options such as black, green, or grey.

Geometric Specifications

Key dimensions define the mechanical performance and installation effort of the fence. The flat strip width is usually 20 mm–25 mm, while the barb length extends 12 mm–18 mm from the strip edge at a 45° angle. Barbs are spaced uniformly at 100 mm–150 mm intervals along the strip, providing a consistent obstacle density.

Manufacturing Process

Production begins with drawing the steel rod to the target diameter, followed by flattening through a series of rollers to achieve the uniform strip width. Barbs are formed by cutting and bending pre‑cut lengths of the same wire, then welded or mechanically crimped onto the strip at the specified pitch. After forming, the strip passes through a galvanizing line where it is immersed in molten zinc; optional polymer coating is applied via extrusion or dip‑coating before the product is wound onto reels or cut to length.

Applications and Suitability

Flat wrap razor wire is selected where a low‑profile yet formidable barrier is required, such as atop perimeter walls of correctional facilities, military installations, and high‑value storage yards. Its flat geometry reduces wind load compared to round‑wire equivalents, allowing attachment to existing structures with minimal reinforcement. The continuous strip also simplifies installation over long runs, reducing labor and fastener count.

• Correctional facility perimeter tops
• Military base perimeter fencing
• Industrial plant secure zones
• Airport cargo area deterrent
• Temporary event security barriers

Quality Control and Testing

Each production lot undergoes dimensional verification using laser micrometers to confirm wire diameter, strip width, and barb spacing within ±0.1 mm tolerances. Tensile strength is measured on random samples per ISO 6892‑1, with acceptance criteria set at the specified minimum. Coating thickness is checked via magnetic induction or coulometric methods, and adhesion is evaluated by cross‑cut tape testing according to ASTM D3359.

Customization Options

The factory can adjust multiple parameters to match project specifications without altering the core manufacturing line. Options include wire gauge, coating type and colour, barb angle and length, pitch spacing, roll length, and packaging format.

• Wire diameter: 1.8 mm – 3.5 mm
• Coating: galvanized only, galvanized+PVC, galvanized+PE, custom colours
• Barb angle: 30° – 60°
• Barb length: 8 mm – 22 mm
• Barb spacing: 50 mm – 200 mm
• Roll length: 10 m – 100 m (custom lengths available)
• Packaging: shrink‑wrapped rolls, palletized cartons, wooden crates

Ordering, Lead Time, and Samples

Minimum order quantities typically start at 500 kg of finished wire, with lead times ranging from 15 to 30 working days depending on coating complexity and order volume. Sample sections (up to 2 m length) can be provided upon request to allow customers to verify dimensions, coating finish, and barb sharpness before committing to a full order.

Contact for Technical Inquiry

For detailed specifications, custom quotes, or to request a sample, please reach out via the contact form. Our engineering team will review your project requirements and return a tailored proposal within one business day.