Concertina coils are tried and tested fences installed on the top of a wall or another fence. It is made of razorblade tape in a coiled shape. Available in different coil diameters, and blade types, they add to the security aspect of the facility they are installed at.
Unlike barbed wires, concertina coils can be expanded to make bigger circles and barriers. They are most commonly used in military-style wire installations on borders. Apart from that, they are also used in prison barriers, riot control, detention camps, airway terminals, railway stations, police camps, amusement parks, agricultural land, and all other places to prevent trespassing.
Several types of concertina coils are available according to wire specifications like BTO-12, BTO-18, and CBT-65. They are usually made of steel or galvanized sheets and are available in single-coil, cross coil, and double coil.
Razor wires have pointed barbs at very regular intervals on the central strand. These bards are made in such a way that they can cause cuts and grazes on anyone who tries to pass through them. But concertina coils, that have sharp blades attached to them, can cause more severe injuries.
Concertina coils are rather easy to install as they don’t require any complicated installation process.