China Galvanized Gabion Baskets Wire Mesh Box Manufacturer
Gabion baskets are modular containers formed from welded wire mesh that are filled with stone, concrete, or other granular material to create flexible, permeable structures. Hot‑dip galvanizing
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Gabion baskets are modular containers formed from welded wire mesh that are filled with stone, concrete, or other granular material to create flexible, permeable structures. Hot‑dip galvanizing applies a zinc coating that protects the steel wires from corrosion in soil, water, and atmospheric exposure, extending service life in civil‑engineering and landscaping applications.
Material and Mesh Characteristics
The wire used for gabion mesh is typically low‑carbon steel with a diameter ranging from 2.0 mm to 4.0 mm, selected according to the expected load and fill material size. Mesh openings are commonly 75 mm × 75 mm or 100 mm × 100 mm, providing sufficient void ratio for drainage while retaining the fill. The zinc coating weight after hot‑dip galvanizing is usually between 60 g/m² and 120 g/m², measured per both sides of the wire, which corresponds to a coating thickness of approximately 8 µm to 16 µm.
- Tensile strength of the base wire: 350 MPa to 550 MPa.
- Elongation at break: ≥ 10 %.
- Wire ductility allows bending around corners without cracking.
Manufacturing Process Overview
Production begins with drawing the steel wire to the specified diameter, followed by cutting to length and forming the mesh pattern on automated welding machines. Each intersection is resistance‑welded to achieve a shear strength that exceeds the wire’s tensile capacity, ensuring the mesh retains integrity under load. After welding, the panels undergo hot‑dip galvanizing in a zinc bath at approximately 450 °C, forming a metallurgical bond that provides uniform coverage even on welded joints.
Dimensional tolerances are held to ± 5 mm on panel length and width, and ± 2 mm on mesh opening size, to facilitate tight stacking and consistent gap filling during installation. Post‑galvanizing, a passivation treatment may be applied to reduce white rust formation during storage.
Typical Applications and Functional Advantages
Gabion baskets function as gravity‑retaining structures where the weight of the fill resists lateral earth pressure, while the mesh confines the particles and allows water to drain, reducing hydrostatic pressure behind the wall. Their flexibility accommodates differential settlement without cracking, making them suitable for riverbank protection, slope stabilization, and noise barrier systems. The permeable nature also supports vegetative growth when soil is used as fill, enhancing ecological integration.
- Retaining walls for highway embankments and railway cuttings.
- Channel linings and scour protection around bridge piers.
- Architectural cladding and landscape features requiring durable, aesthetic stone cages.
- Temporary flood barriers and military fortifications.
Quality Control and Inspection
Each batch undergoes visual inspection for weld uniformity and coating continuity. Coating adhesion is verified by a bend test where the wire is bent 180° around a mandrel of specified diameter; no flaking or cracking indicates adequate bond strength. Zinc coating mass is measured using the gravimetric strip‑weigh method on random samples, with results recorded against the agreed specification. Dimensional checks are performed with calibrated calipers and tape measures on finished panels.
- Visual inspection: 100 % of panels.
- Coating adhesion: bend test per ASTM A123/A123M.
- Zinc coating weight: strip‑weigh method, ± 5 % tolerance.
- Dimensional accuracy: length/width ± 5 mm, opening ± 2 mm.
Customization Options
Customers can specify variations in wire diameter, mesh opening, panel dimensions, and coating weight to match project‑specific design loads and environmental conditions. Additional protective layers, such as PVC coating over the galvanized wire, are available for aggressive chemical or marine environments. Custom end finishes, including laced edges or reinforced corners, facilitate easier handling and installation.
- Wire diameter: 2.0 mm – 5.0 mm (custom).
- Mesh opening: 50 mm × 50 mm to 150 mm × 150 mm.
- Panel size: height 0.3 m – 3.0 m, width 0.5 m – 2.5 m, length modular.
- Zinc coating: 60 g/m² – 200 g/m² (hot‑dip) or electro‑galvanized alternatives.
- Optional PVC overcoat: thickness 0.5 mm – 1.0 mm, colors per RAL.
Packaging and Shipment Protection
Finished gabion panels are stacked flat on wooden pallets, with interleaving layers of polyethylene film to prevent abrasion and moisture ingress during transit. Each pallet is secured with steel straps and corner protectors, then wrapped in stretch film. For overseas shipments, pallets are placed in ventilated containers or break‑bulk holds, and desiccant packs are added to control humidity.
- Pallet size: 1.1 m × 1.1 m standard, customizable.
- Maximum load per pallet: 1.5 t (depending on panel thickness).
- Packaging materials: recyclable HDPE film, UV‑stabilized for outdoor storage.
- Labeling: includes product code, dimensions, coating weight, and batch number.
Typical Specification Table
| Parameter | Typical Range | Notes |
|---|---|---|
| Wire Diameter | 2.0 mm – 4.0 mm (standard) | Larger diameters available on request |
| Mesh Opening | 75 mm × 75 mm or 100 mm × 100 mm | Custom openings 50 mm–150 mm possible |
| Tensile Strength (Wire) | 350 MPa – 550 MPa | Measured per ASTM A370 |
| Zinc Coating Weight | 60 g/m² – 120 g/m² (hot‑dip) | Equivalent to 8 µm–16 µm thickness |
| Panel Height | 0.3 m – 3.0 m | Modular; custom heights upon request |
| Panel Width | 0.5 m – 2.5 m | Standard widths facilitate stacking |
| Panel Length | 0.5 m – 6.0 m (modular) | Lengths can be joined with lacing wire |
Frequently Asked Questions
Yes. Wire diameter, mesh opening, panel height, width, and length can be adjusted to meet design specifications. Custom end finishes and additional coatings are also available.
Please provide the required wire diameter, mesh size, panel dimensions, estimated quantity, coating weight preference, and any special packaging or certification needs.
Base material is low‑carbon steel. Options include hot‑dip galvanized, electro‑galvanized, and galvanized wire with an overcoat of PVC or PE for aggressive environments.
Inspection includes visual weld checks, coating adhesion bend test, zinc coating weight measurement via strip‑weigh, and dimensional verification against tolerances.
Standard packaging uses palletized stacks with polyethylene film interleaving, steel strapping, and stretch wrap. Custom pallet sizes, corrosion‑inhibiting interleaves, and container‑ready packing can be arranged.
Shipments are loaded into ventilated containers or break‑bulk holds with desiccant packs to control humidity. Pallets are secured to prevent movement, and protective corner guards minimize impact damage.
Lead time depends on order size and customization level, generally ranging from 2 weeks for standard panels to 4‑6 weeks for fully customized specifications.
Sample panels (typically 0.5 m × 0.5 m) can be provided upon request, with the customer covering shipping costs or arranging pickup at our facility.
For detailed technical datasheets, custom quotes, or to discuss project‑specific requirements, please contact our engineering team.
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