Four-Bend 3D Welded Mesh Fence for a Chilean Expressway
Products
3D welded mesh fence
Application
Chilean highways
Project Background
A Chilean wholesale distributor ordered 1,800 sets of 3D welded mesh fences with matching square posts for a major expressway project. The national road authority required a durable perimeter system to prevent pedestrian and wildlife entry, reduce accident risks, and define the highway boundary.
The expressway crosses coastal areas with salt-laden winds and inland zones with strong UV exposure. The fencing therefore needed to be corrosion-resistant, easy to install over long distances, visually compatible with the landscape, compliant with Chilean construction standards, and reliable with minimal maintenance.
Our Solution
Product Specifications
Each of the 1,800 sets comprised the following precisely engineered components:
Fence Panels (2.03 m × 2.50 m)
- 5.5 mm wire for high strength and impact resistance
- 50 × 200 mm mesh openings to restrict small animals while preserving driver visibility
- Four 3D bending lines for greater rigidity and dimensional stability than flat panels
- Optional sharpened top edges for anti-climb protection
- Fully welded intersections to prevent wire movement
Support Posts (Buried Installation)
- 50 × 50 mm square steel tube
- 2.0 mm wall thickness
- 2.6 m length with approximately 600 mm embedment
- Supplied with clips or brackets for secure panel installation
Surface Treatment
- Green RAL 6005 powder coating
- 1.3 mm coating thickness for corrosion resistance, UV protection, and long-term colour retention
Quality Control
Strict quality inspection was implemented at each stage to meet Chilean infrastructure standards.
- Raw Material Check: Verified 5.5 mm wire, 50 × 200 mm mesh openings, and 50 × 50 × 2.0 mm posts.
- Weld & Bend Testing: Random samples passed weld shear tests; four bending lines were checked within ±1° for consistent rigidity.
- Dimensional Inspection: Panel size, mesh spacing, post length, and clip-hole alignment were verified by batch.
- Coating Inspection: Cross-hatch adhesion was tested, and RAL 6005 colour was confirmed under natural and artificial light.
- Pre-shipment Audit: Panel-to-post assembly and protective pallet packaging were inspected before ocean transport.
Project Execution Highlights
- Four-Bend Rigidity: The four bending lines provide greater stiffness than standard 2- or 3-bend panels, reducing deflection from strong winds and impacts.
- Optimised 50 × 200 mm Mesh: Restricts small wildlife and climbing while maintaining driver visibility and roadside views.
- Heavy-Duty 5.5 mm Wire: Offers higher impact resistance and long-term strength, including in seismic areas.
- RAL 6005 Green Finish: Blends with Chilean landscapes while providing durable corrosion protection.
- Efficient Transport and Installation: Compact packaging improved container use, while clip-based fixing enabled fast installation with minimal traffic disruption.
Post-Installation Showcase
After installation, the expressway fencing delivered strong overall performance:
- Visual Integration: The RAL 6005 green finish blended naturally with roadside vegetation while clearly defining the boundary.
- Structural Stability: Four-bend panels remained straight without sagging, while the deeply embedded posts stayed vertical in high winds.
- Safety Protection: The 50 × 200 mm mesh blocked small animals and livestock, while the 5.5 mm wire resisted minor debris impacts.
- Driver Visibility: The wide mesh openings preserved clear sightlines and reduced visual enclosure.
- Low Maintenance: The powder coating resisted fading and chipping, making it suitable for remote highway sections.
Customer Feedback
"This was our first order of four-bend 3D mesh fencing, and we were impressed by its strength and quality. The 5.5 mm wire and 50 × 200 mm mesh met the road authority's requirements, while the four bends provided excellent rigidity.
All 1,800 sets had a consistent RAL 6005 finish and fitted the posts without modification. Installation went smoothly, and we plan to use this system for future highway projects." – Supply Chain Manager, Chilean Wholesale Distributor.
