Comprehensive Guide to Double Wire Fence Production: Craftsmanship, Technology & Applications

Comprehensive Guide to Double Wire Fence Production: Craftsmanship, Technology & Applications

As a core product in modern protection engineering, the Double Wire Fence stands out for its simple structure, high cost-efficiency, and strong adaptability. It has become the preferred isolation solution for highways, industrial zones, and agricultural enclosures. Its production integrates traditional metalworking techniques with advanced intelligent manufacturing, forming a complete and efficient industrial ecosystem.

1. Production Process: Precision from Raw Materials to Finished Products

1. Raw Material Selection & Pre-Treatment
The main material of double wire fencing is low-carbon cold-drawn steel wire, typically Q195 or Q235. Requires raw materials with tensile strength ≥370MPa and elongation ≥15%. Before production, the steel rods undergo acid pickling, rust removal, and phosphating (0.5–1μm film), ensuring optimal adhesion for subsequent galvanization.

2. Wire Drawing & Forming
Steel rods (6.5mm) are drawn to 2.9–6.0mm diameter using precision drawing machines. The reduction rate (≤15% per pass) is strictly controlled to prevent brittleness. Anping Zemeng Wire Mesh Manufacturing Co., Ltd. uses a nine-drum continuous drawing process to achieve a ±0.05mm wire diameter tolerance for perfectly flat mesh panels.

3. Welding & Edge Rolling
Resistance spot welding applies 120kN pressure to fuse wires within 0.2 seconds. A key innovation lies in the 3D edge rolling—Zeming’s edge-folding system bends the mesh edge inward by 15mm, creating a reinforced triangular structure that boosts impact resistance by 40%.

4. Surface Treatment Options

▾Hot-dip galvanizing: 460°C zinc bath forms an 80–100μm coating; salt spray test exceeds 1000 hours with no red rust.

▾PVC coating: Polyethylene powder melts at 220°C forming 0.8–1.2mm weatherproof coating lasting up to 10 years.

▾Electrostatic spraying: 60–80μm coating thickness, ideal for dry environments.

2. Technological Innovation: Smart Manufacturing Drives Industrial Upgrading

1. Automated Production Lines
Equipped with German KUKA robotic welding systems, the company achieves automatic mesh positioning and multi-point synchronous welding—tripling productivity. Laser cutting precision of ±0.1mm keeps post hole alignment under 0.5mm.

2. CAD Simulation Design
Using SolidWorks, Zeming optimizes mesh aperture (typically 60×120mm) and wire thickness. In mountainous protection projects, increasing wire diameter from 4.0mm to 5.5mm enhanced rockfall resistance by 2.3 times.

3. Eco-friendly Technology Breakthroughs
The low-temperature galvanizing process reduces zinc use from 80kg to 65kg per ton, meeting GB/T 18226-2015 standards. Wastewater recycling achieves 98% zinc recovery, cutting heavy metal emissions by 12 tons annually.

3. Quality Control: Rigorous Standards & Testing Systems

1. Compliance with National Standards
Products meet JT/T 374-2010 'Technical Conditions for Fences', including:

▾Mesh tensile strength ≥1200N/m

▾Post bending strength ≥45kN·m

▾Zinc coating weight ≥600g/m²

2. Triple Inspection System

▾Self-inspection: 5% of each batch tested for weld strength using digital tension machines.

▾Special inspection: Spectrometer analysis ensures zinc alloy Al content 0.1%–0.2%.

▾Final inspection: 720-hour salt spray corrosion test.

3. Case Study
For the Hong Kong–Zhuhai–Macao Bridge, Zeming’s double wire fence withstood Category 16 typhoon impact. Custom 12mm flanged bases achieved 8-ton pull-out resistance, surpassing the industry standard of 3 tons.

4. Applications: From Infrastructure to Public Safety

1. Transportation
Standard highway fences (1.8m × 3m, post spacing 3m) achieved 95% vehicle containment rate after anti-roll modules were added on Yunnan mountain roads.

2. Industrial Protection
Factories often use 2.0m-high green PVC-coated fences (50×100mm mesh). A Tesla Gigafactory adopted Zeming’s anti-theft bolt system, tripling vandal resistance.

3. Agricultural Enclosures
For orchards and cotton fields, 1.2m economical fences (100×100mm mesh) effectively prevent over 90% of wild animal intrusions.

5. Industry Trends: Toward Green Manufacturing & Custom Solutions

1. Material Innovation
The aluminum-zinc alloy coating extends fence lifespan to 25 years. Zn-Al-Mg coated models are already in use in Xiong’an New Area municipal projects.

2. Customized Production
Clients can tailor colors, sizes, and mesh patterns. For example, a Chengdu project completed 3,000 meters of customized fencing within 72 hours.

Conclusion

From Anping—the “Hometown of Wire Mesh”—to the rise of intelligent factories, Double Wire Fence manufacturing is evolving from traditional craftsmanship to high-end smart production. With the integration of new materials and IoT technologies, this “Guardian of Safety” continues to protect urban infrastructure and public spaces, ensuring long-term security and sustainable development.