Custom Double Strand Barbed Wire Fence Manufacturer
Double strand barbed wire fence consists of two parallel high‑tensile steel wires twisted together, with uniformly spaced barbs clamped onto each strand. This configuration increases tensile capacity
Custom Double Strand Barbed Wire Fence Manufacturer
Double strand barbed wire fence consists of two parallel high‑tensile steel wires twisted together, with uniformly spaced barbs clamped onto each strand. This configuration increases tensile capacity and resistance to sagging compared with single‑strand designs, making it suitable for perimeter security where long spans and limited intermediate posts are required.
Technical Specifications
Specifying the wire gauge determines the fence’s load‑bearing capacity; typical diameters range from 2.0 mm to 3.5 mm (12‑9 AWG). The double‑strand construction doubles the effective cross‑section, so a 2.5 mm wire delivers approximately twice the tensile strength of a single strand of the same size.
| Property | Typical Value | Note |
|---|---|---|
| Wire diameter (each strand) | 2.0 mm – 3.5 mm | Selectable per project |
| Tensile strength (per strand) | ≥ 550 MPa (galvanized) | Depends on steel grade |
| Barb length | 15 mm – 25 mm | Standard spacing 75 mm – 150 mm |
| Coating thickness (Zn) | ≥ 55 µm (hot‑dip galvanized) | Optional PVC overcoat 0.3 mm |
Material Options
Material selection influences corrosion resistance, lifespan, and compatibility with local environmental conditions. The base steel is typically low‑carbon, high‑tensile grade, with surface treatments chosen to match the expected service life.
- Hot‑dip galvanized steel (Zn coating ≥55 µm) – standard for general outdoor use.
- Galvanized + PVC overcoat (0.3 mm) – adds UV protection and color options (green, blue, black).
- Stainless‑steel wire (grade 304 or 316) – for marine or chemical‑exposure environments.
Customization Choices
Customization begins with defining the wire diameter and strand layout, then selecting barb geometry, coating, and roll length to match site‑specific requirements.
- Wire diameter: 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm (per strand).
- Barb spacing: 75 mm, 100 mm, 125 mm, 150 mm (center‑to‑center).
- Barb angle: 30° or 45° relative to strand.
- Coating: hot‑dip galvanized, galvanized + PVC, stainless steel.
- Roll length: 50 m, 100 m, 200 m (custom lengths available).
- Post compatibility: suitable for steel H‑posts, concrete posts, or timber posts with appropriate brackets.
Applications and Suitability
Typical applications include high‑security perimeters where mechanical strength and low maintenance are critical. The double‑strand configuration resists wind‑induced sagging over spans of up to 30 m between posts, reducing the need for intermediate supports.
- Industrial facility boundaries – provides a robust deterrent against climbing and cutting, with tensile capacity sufficient to withstand impact from vehicles.
- Agricultural livestock enclosures – the closely spaced barbs deter animal pressure while the galvanized coating endures exposure to moisture and manure.
- Infrastructure sites (railways, highways) – meets regulatory requirements for anti‑climb barriers and can be installed on existing concrete parapets using specialized brackets.
Quality Assurance Procedures
Quality assurance relies on systematic testing at each production stage, from raw‑wire inspection to final roll packaging, ensuring that mechanical and coating specifications are met consistently.
- Wire diameter tolerance: ±0.05 mm measured with laser micrometer.
- Tensile strength test: sampled every 500 kg of wire, minimum 550 MPa.
- Coating thickness: magnetic induction gauge, average ≥55 µm Zn.
- Barb uniformity: visual and dimensional check, length variance ≤2 mm.
- Roll weight verification: target ±2 % of nominal.
Packaging and Shipping
Packaging methods are designed to protect the coating and facilitate handling during transport and site installation. Rolls are wound tightly, wrapped, and secured to prevent loosening or damage.
- Inner layer: polyethylene film to guard against moisture.
- Outer layer: UV‑stabilized polypropylene wrap with printed product codes.
- Palletization: standard 1.1 m × 1.1 m pallets, max 2 t per pallet, stretch‑wrapped for stability.
- Container loading: 20‑ft container holds approximately 24 pallets (≈48 t).
Frequently Asked Questions
- Can dimensions be customized?
- Yes – wire diameter, barb spacing, coating type, and roll length are all adjustable to project specifications.
- What information is required before quotation?
- Required details include desired wire gauge, total length, height, post type, coating preference, and any special standards (e.g., ASTM, ISO).
- What materials are available?
- Hot‑dip galvanized steel, galvanized + PVC, and stainless‑steel grades 304/316.
- How is quality inspected?
- Each lot undergoes dimensional, tensile, and coating thickness checks per the quality assurance procedures outlined above.
Get a Custom Quote
To discuss a custom solution for your site, please contact our technical team to review specifications, lead times, and pricing.
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