Concertina Coil (Anti-Climbing Security Barrier)

Concertina Coil, a high-intensity anti-climbing security barrier, is widely recognized for its strong deterrence and reliable protection. Its application scenarios span multiple fields requiring strict security, especially in areas where unauthorized access or escape must be firmly prevented.

Background of Key Application: Prison Reconstruction & Expansion

Most prisons in many regions were built in the 1970s, with outdated internal environments, living facilities for inmates, labor reform spaces, and educational infrastructure. These fail to meet the Prison Construction Standards and modern prison safety requirements. Thus, prison reconstruction and expansion projects have become key initiatives for provincial prison layout adjustments—critical for inmate reform work, overall prison system planning, and external communication. In such projects, Concertina Coil plays an irreplaceable role: its sharp, dense structure creates both physical obstruction and psychological deterrence, making inmates abandon escape intentions fundamentally. It has therefore become the first choice for prison escape prevention.

Extended Application Scenarios of Concertina Coil

1. Border Control & Customs Security

Used in border zones, ports, and customs checkpoints to form a high-security buffer zone. It effectively blocks illegal cross-border activities (such as smuggling and unauthorized entry) while being easy to deploy and adapt to complex terrains (e.g., mountainous areas, coastal regions).

2. Military & Defense Facilities

Installed around military bases, ammunition depots, and defense outposts. Its anti-cut, anti-climb, and anti-impact properties help construct a first-line defense barrier, preventing trespassing and potential sabotage.

3. Industrial & Logistics Parks

Applied to the perimeters of factories, warehouses, and logistics centers. It protects valuable equipment, raw materials, and finished goods from theft or vandalism, while its modular design allows flexible matching with fences of different heights.

4. Critical Infrastructure Protection

Used for power plants, water treatment facilities, oil refineries, and communication towers. These sites are vital to public life—Concertina Coil enhances their security by deterring unauthorized access, reducing the risk of operational disruptions.

5. Public Event Venues

Temporarily deployed in large-scale events (e.g., sports games, concerts) or high-security meetings to isolate crowds, manage access routes, and prevent stampedes or unauthorized entry into restricted areas.

Common Specification Requirements for Concertina Coil (Prison & High-Security Scenarios)

1. Mesh Size: 50mm × 50mm (ensures no gaps for climbing or squeezing through)

2. Wire Diameter: φ5.0mm (post-plastic coating, enhancing corrosion resistance for long-term outdoor use)

3. Y-Shaped Post Spacing: 3.0m. The Y-fork at the top of each post is sealed with a waterproof cover to prevent rusting and extend service life. (Y-shaped posts are specially matched with Concertina Coil for stable installation.)

4. Post Square Tube Specification: 60mm × 60mm × 3mm (high-strength steel, withstanding external impact)

5. Frame Specification: 40mm × 20mm × 2mm (post-plastic coating, consistent with the coil’s anti-corrosion performance)

6. Height Requirement: The base fence height shall not be less than 3 meters; after installing Concertina Coil on top, the overall security barrier height shall reach no less than 3.5 meters (meeting the anti-climbing standard for high-security areas).