Concertina coil and razor wire for the top of your fence

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Concertina coil is razor wire formed into coils that sit on top of a fence, to stop people climbing over. SIMO Securon supplies it with the QvikFixrr™ fence system: coils of 450 to 1,000 mm across, on a 2.5 mm high-tensile core wire, with a galvanised blade 0.4 to 0.6 mm thick.

What is concertina coil?

Concertina coil is razor wire, a steel strip with sharp blades crimped onto a strong core wire, formed into coils. Clipped together, the coils open out along the top of a fence like the folds of a concertina. It makes a fence far harder to climb over, so it goes where people, not animals, are the threat: factories, warehouses, data centres and other high-value sites.

SIMO Securon supplies concertina coil as part of its QvikFixrr range. It sits in the attachments of QvikFixrr posts, above the fence fabric, so the posts, the fence and the topping come as one system.

Concertina coil specification

Specification QvikFixrr concertina coil
Coil diameter 450 to 1,000 mm, every size in the range
Core wire 2.5 mm, high-tensile
Blade Galvanised, 0.4 to 0.6 mm thick
Blade profiles Short, medium and long; other profiles on request
Fixing In the attachments of QvikFixrr posts, above the fence fabric
Suggested design: industrial and high-value sitesElevation of an 8 ft ZS-Knot anti-climb fence with RTHT barbed wire and concertina coil.8 ft
The suggested design for factories, warehouses and data centres: a ZS-Knot™ 4 x 2 inch grid with RTHT™ barbed wire and concertina coil on top. Designs shown are a starting point for discussion, not for construction. Open the drawing full size: Suggested design: industrial and high-value sites

A larger coil makes a deeper barrier on top of the fence; the blade profile sets how close together the blades sit. Your specification or drawing usually names both. If it does not, tell us the fence and the site, and we suggest a coil.

Razor wire or barbed wire: which goes on top?

Both sit on top of a fence, in the same post attachments.

  • Barbed wire runs in straight strands, two twisted wires with barbs. It is simpler to fit and suits a boundary where people are an occasional threat. SIMO Securon makes its own RTHT high tensile barbed wire; see barbed wire for how it is priced.
  • Concertina coil is razor wire in coils, a deeper barrier against climbing over, for sites where people are the main threat.

On factories, warehouses and data centres, SIMO Securon’s suggested design is a ZS-Knot 4 x 2 inch anti-climb fence in Alpha, up to 8 ft, with RTHT barbed wire and concertina coil on top. See industrial fencing.

What sets the price of concertina coil?

Concertina coil is quoted per coil or per running metre of boundary. The price depends on:

  • The coil diameter: a larger coil uses more blade and core wire
  • The blade profile and its thickness
  • The length of the boundary
  • The posts and fittings, if they are part of the order
  • Where it goes: the delivery location

No price list is published. Send the coil size and the length of boundary, and we send a quotation for your order.

A complete perimeter systemA fence bay builds up in order: a QvikFixrr terminal post, 65 x 65 x 6 mm; an intermediate post, 50 x 50 x 6 mm; a strut at 45 degrees; the fence fabric; QvikFixrr clips and fabric locks; RTHT barbed wire; and concertina coil on the post attachments.75 cm11QvikFixrr terminal post65 x 65 x 6 mm22Intermediate post50 x 50 x 6 mm33Strutat 45 degrees44Fence fabricQ-Knot or ZS-Knot55Clips and fabric locksQvikFixrr fittings66RTHT barbed wireon the post attachments77Concertina coilsecurity toppingONE SYSTEM

How concertina coil is supplied

Concertina coil comes with the QvikFixrr fence system: posts on a standard 8.5 ft shaft with attachments for barbed wire and concertina coil, clips, fabric locks and fasteners, and the fence fabric. When SIMO Securon’s crews install your fence, the coil goes on with it. Work out the fence, its posts and its toppings for your boundary with the fencing cost estimator.

Already have a fence or a wall? Tell us what the coil goes on in the form below, and we will advise.

Concertina coil

Share your requirement

Tell us the coil size, the length of boundary and what the coil goes on. Add your specification or drawing if you have one, or book a call. Overseas enquiries are welcome; we reply in English.

What you need

Any size from 450 to 1,000 mm. Leave it blank if you are not sure.

Where will it go?

Heights, sizes, the standard your specification names, your timeline.

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FAQ

Concertina coil questions

What is the difference between concertina wire and razor wire?

Razor wire is a steel strip with sharp blades, crimped onto a core wire. Concertina coil, or concertina wire, is razor wire formed into coils that open out along the top of a fence like the folds of a concertina. SIMO Securon's coil has a 2.5 mm high-tensile core wire and a galvanised blade 0.4 to 0.6 mm thick.

What sizes does concertina coil come in?

SIMO Securon supplies concertina coil in diameters from 450 to 1,000 mm, with short, medium and long blade profiles, and other profiles on request. Tell us the diameter in your specification or drawing, or ask us to suggest one for your fence.

How is concertina wire priced: per metre or per coil?

It is quoted per coil or per running metre of boundary, and the price depends on the coil diameter, the blade profile and thickness, the core wire and the length of the boundary. Send your boundary length and coil size on WhatsApp to +91 93730 08466 for a quotation.

Does SIMO Securon make concertina coil?

No. SIMO Securon supplies concertina coil as part of its QvikFixrr range, with the posts, fittings and fence it sits on, so the whole perimeter comes from one supplier. The fence fabric and RTHT barbed wire are made by SIMO Securon in Nagpur.

Concertina coil or barbed wire on top of a fence?

Barbed wire runs in strands along the top of a fence and is simpler to fit. Concertina coil is a deeper barrier against climbing over. Sites where people are the main threat, such as factories and data centres, often use RTHT barbed wire and concertina coil together.

Barbed wire: per kg, per metre and what sets the rate

Send us your concertina coil requirement

Tell us the coil size, the length of boundary and what the coil goes on. Add your drawing if you have one, and we come back with availability and a quotation.