Traditional twisted barbed wire is the most cost-effective perimeter security solution available. Two strands of galvanized steel wire are twisted together with sharp barbs spaced at regular intervals, creating a formidable barrier that is difficult to cut or climb.
## Construction
- **Double-Strand Twist**: Two 12 SWG (2.8mm) main wires twisted together, with 14 SWG (2.2mm) barbs wrapped between them at 75-100mm intervals
- **Barb Style**: 2-point or 4-point barbs available. 4-point provides higher security.
- **Twist Type**: Regular (standard) or reverse twist (higher barb retention)
- **Galvanizing**: Hot-dipped (>=80g/m2) applied after twisting for complete coverage
## Key Advantages
- **Economical**: Lowest cost per linear meter of any security barrier. 5-10x cheaper than razor wire.
- **Easy Installation**: Installs on standard fence posts with staples or clips. No special tools needed.
- **Versatile**: Can be installed as single strand, multi-strand, or in conjunction with mesh fencing.
- **Durable**: Hot-dipped galvanizing provides 10-15 years outdoor service life.
- **Low Maintenance**: Once installed, requires no upkeep until end of service life.
- **Animal Deterrent**: Effective for livestock containment and predator exclusion.
## Technical Specifications
| Parameter | Value |
|-----------|-------|
| Main Wire | 12 SWG (2.8mm) x 2 strands |
| Barb Wire | 14 SWG (2.2mm) |
| Barb Type | 2-point or 4-point |
| Barb Spacing | 75mm, 100mm, 125mm |
| Twist Type | Regular (standard) |
| Galvanizing | Hot-dipped >=80g/m2 |
| Material | Q195 Low Carbon Steel Wire |
| Tensile Strength | 350-550 MPa |
| Coil Length | 200m (standard) |
| Coil Weight | ~25 kg per 200m coil |
| Standard | ASTM A121, YB/T 4028 |
## Installation Configurations
1. **Single Strand**: One line on fence top β minimal security, boundary marking
2. **3-Strand**: Three parallel strands on posts β livestock containment standard
3. **5-Strand**: Five strands β cattle and horse perimeter fencing
4. **Top + Mesh**: Barbed wire on top of chain link or welded mesh β security upgrade
## Applications
- **Agricultural Fencing**: Cattle, horse, and sheep pasture perimeters
- **Railway Right-of-Way**: Track boundary protection
- **Highway Barriers**: Median and right-of-way fencing
- **Industrial Perimeters**: Factory and warehouse site boundaries
- **Construction Sites**: Temporary security during construction
- **Military**: Training area boundaries and restricted zone marking
- **Forestry**: Forest boundary and plantation protection
## Packaging & Delivery
- **Packaging**: Coils wrapped in waterproof plastic film. Wire ties secure coil.
- **Container Loading**: 20ft GP ~ 4000-6000 coils; 40ft HQ ~ 8000-12000 coils
- **Lead Time**: 5-10 days standard
- **Shipping**: FOB Tianjin / CIF / DDP