Wholesale Price Galvanized Barbed Wire Fence Supplier

Galvanized barbed wire fence consists of high‑tensile steel wire coated with a zinc layer to resist corrosion, with uniformly spaced barbs that deter climbing and animal breach. The product is supplied in continuous rolls that can be unrolled and fastened to wooden, steel or concrete posts, making it adaptable to permanent or temporary perimeter solutions.

Technical Specifications

The core wire is typically cold‑drawn low‑carbon steel with diameters ranging from 2.0 mm to 3.0 mm, selected according to required tensile strength and impact resistance. Hot‑dip galvanizing applies a zinc coating of 60 g/m² to 120 g/m² (measured per ASTM A123), providing a service life of 15‑25 years in rural environments and 10‑15 years in industrial atmospheres.

Barbs are formed by twisting two short wire segments around the main strand, producing a barb length of 15‑20 mm and a spacing of 75‑150 mm between barbs along the wire. The tensile strength of the galvanized strand usually exceeds 550 MPa, while the elongation at break remains above 10 %, ensuring the fence can withstand tensioning and impact loads without permanent deformation.

Standard roll lengths are 50 m or 100 m, with a nominal weight of approximately 18 kg per 50 m roll for a 2.5 mm wire, allowing easy handling by two workers. Custom lengths and weights are available upon request to match project logistics.

Applications

In agricultural settings, the fence contains livestock while preventing wildlife intrusion; the zinc coating resists moisture from soil and manure, reducing maintenance cycles. For industrial perimeters, the high tensile strength and sharp barbs deter unauthorized climbing, providing a low‑cost first line of defense that can be integrated with CCTV and motion sensors.

Temporary construction sites benefit from the ease of unrolling and re‑tensioning the wire, allowing rapid deployment and removal without damaging the ground. The product’s flexibility also makes it suitable for erosion control on slopes, where the wire is anchored to geotextiles to retain soil while allowing water permeability.

Quality Control Philosophy

Wire drawing is monitored for diameter tolerance (±0.02 mm) and surface finish to avoid stress concentrations that could lead to premature fracture. After drawing, the wire undergoes hot‑dip galvanizing where bath temperature and immersion time are controlled to achieve uniform zinc alloy layers; coating thickness is verified by magnetic inductance probes on each batch.

Barb formation is performed on automated twisters that maintain consistent pitch and tension, ensuring each barb meets the specified length and spacing. Finished rolls are subjected to a tensile test on a sample strand, with results recorded and compared against the 550 MPa minimum; any roll failing the test is quarantined for re‑work.

Visual inspection checks for zinc coating defects such as bare spots, drips, or uneven adhesion, using standardized lighting and magnification. Packaging is inspected for correct roll length labeling and proper protective wrapping to prevent corrosion during transit.

Customization Options

Buyers can specify wire diameter increments of 0.1 mm to match load calculations for high‑security or low‑impact applications. Coating weight can be increased up to 200 g/m² for aggressive environments such as chemical plants or coastal zones, extending service life beyond 25 years.

Barb spacing and length are adjustable; tighter spacing (e.g., 50 mm) provides greater deterrence, while wider spacing reduces material cost for agricultural enclosures. Roll length can be tailored to project logistics, from 20 m for handheld installation to 200 m for continuous runs on large estates.

Optional PVC or polyester over‑coating adds a colored layer for aesthetic integration or additional UV protection, with thickness typically ranging from 30 µm to 60 µm. All customizations are supported by engineering review to ensure the final product meets the required mechanical and corrosion performance.

Packaging and Shipping

Each roll is first wrapped in a polyethylene film that acts as a moisture barrier, then placed on a sturdy wooden or steel pallet. The rolls are secured with polyester strapping and corner protectors to prevent shifting during handling.

Standard container loads accommodate 20‑pallets per 20‑foot container, with an approximate gross weight of 2 tons per container, allowing efficient sea freight. For inland transport, pallets are shrink‑wrapped and labeled with handling instructions, product code, and batch number for traceability.

Upon request, we can provide custom crating for overseas shipments that require additional impact protection, or provide palletless bulk packing for specialized conveyor feeding systems.

Frequently Asked Questions

• Can the wire diameter and coating weight be customized? Yes, both parameters are adjustable according to project specifications; please provide the required tensile strength and environmental conditions for a tailored recommendation.
• What information is needed before a quotation? We require the intended wire diameter, coating weight, barb spacing, roll length, and any additional finishes (e.g., PVC coating). Delivery destination and quantity help us calculate freight and lead time.
• How is quality inspected? Each batch undergoes diameter tolerance checks, coating thickness measurement via magnetic inductance, tensile strength testing, and visual inspection for zinc adhesion and barb uniformity.
• What packaging methods are available? Standard packaging includes polyethylene film wrap, palletizing, and strapping. Custom crating or bulk packing can be arranged on request.
• Are export shipments protected against corrosion? Yes, the film barrier and desiccant packs inside the pallet minimize moisture ingress during transit.
• What is the typical production lead time? Lead time ranges from 2 to 4 weeks depending on order size and customization complexity; stock items ship within 5 working days.
• How can samples be arranged? Sample lengths of 5 m can be provided free of charge; the recipient covers freight or arranges pickup at our facility.