Anti-Intruder Fence

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Anti-intruder fence is widely used in the airport, highway, railway, forest farm, factory and other places for security protection. It has chain link mesh and welded wire mesh types for choice. The top and bottom can be installed with the barbed wire or razor bared wire to prevent intruders from climbing into the areas.

Welded wire mesh

The material of anti-intruder welded wire mesh is zinc coated steel wires, which conform to BS EN 10223-4. Both of the two materials can supply high corrosion and rust resistance performance for the welded anti-intruder fence. Additional, they can extend the service life of anti-intruder fence and save the maintenance cost.

Several PVC coated welded anti-intruder fences are surrounding the construction site.
AIF-01: PVC coated welded anti-intruder fence with barbed wire.Several galvanized welded anti-intruder fences are installed in the parking lot.
AIF-02: Galvanized welded anti-intruder fence with razor barbed wire.
The height of welded wire mesh is commonly 2.4 m if it is not buried and 2.7 m if it is buried. Sometimes, the plastic coated welded wire mesh will be separated into two pieces, the two panels will be overlapped horizontally by a minimum of two complete meshes.

Several welded anti-intruder fence with one piece structure.
AIF-03: One piece structure welded anti-intruder fence.Several welded anti-intruder fence with double piece structure.
AIF-04: Double-piece structure welded anti-intruder fence.
The welded anti-intruder fence can be connected with different posts, including intermediate post and straining post. The intermediate post has different styles according to the crank type. The main types are inward cranked type, outward cranked type, straight type and double extension arm type.

Anti-intruder fences with inward cranked intermediate posts.
AIF-05: Inward cranked intermediate post of welded anti-intruder fence.Anti-intruder fences with outward cranked intermediate posts.
AIF-06: Outward cranked intermediate post of welded anti-intruder fence.
Anti-intruder fences with straight intermediate posts.
AIF-07: Straight intermediate post of welded anti-intruder fence.Anti-intruder fences with double extension arm intermediate posts.
AIF-08: Double extension arm intermediate post of welded anti-intruder fence.
There are four line wires evenly spaced on the welded wire mesh fence. The bottom wire is close to the ground and the top wire is not more than 50 mm below the top horizontal of the mesh for 50 mm meshes and not more than 75 mm below the 75 mm horizontal meshes. The line wire is 3 mm diameters and conform to BS EN 10223-6 or BS 4102 standard. Stirrup wire is used for securing line wires to intermediate post, which conform to BS 4102 standard with a 2.5 mm diameters. The tying wire is used for securing mesh to line wires, which conform to BS 4102 standard with a nominal 1.6 mm diameter.

Additional, the barbed wires are installed top or both top and bottom of the welded wire mesh to prevent intruders from entering the area and improve the safety factor. The barbed wire conform to BS EN 10223-6 standard.

Specifications of welded wire mesh

Material: zinc coated wire or organic coated wire.
Wire diameter:
Zinc coated wire: 3 mm.
Plastic coated wire: 3/4 mm.
Mesh size: 50 mm × 50 mm or 75 mm× 25 mm.
Line wire diameter:
Zinc coated wire: 3 mm.
Plastic coated wire: 3/4 mm.
Stirrup wire diameter:
Zinc coated wire: 2.5 mm.
Plastic coated wire: 2.5/3.5 mm
Tying wire diameter:
Zinc coated wire: 1.6 mm.
Plastic coated wire: 1.6/2.6 mm
Height:
2.4 m if it is not be buried.
2.7 m if it is to be buried.
Post type: intermediate post and straining post.
Specifications of anti-intruder welded wire mesh
Item Material Wire diameter
(mm) Mesh size
(mm) Height
(mm) Separate height
Bottom panel Top panel
AWM-01 Zinc coated wire 3 mm 50 × 50 2.4 - -
AWM-02 Zinc coated wire 3 mm 50 × 50 2.7 - -
AWM-03 Zinc coated wire 3 mm 75 × 25 2.4 - -
AWM-04 Zinc coated wire 3 mm 75 × 25 2.7 - -
AWM-05 Plastic coated wire 3 mm/ 4 mm 50 × 50 2.4 1.5 1.0
AWM-06 Plastic coated wire 3 mm/ 4 mm 75 × 25 2.4 1.5 1.05
AWM-07 Plastic coated wire 3 mm/ 4 mm 50 × 50 2.7 1.8 1
AWM-08 Plastic coated wire 3 mm/ 4 mm 75 × 25 2.7 1.8 1.05
Chain link mesh

The chain link mesh anti-intruder fence is made of zinc or class A zinc alloy coated wire conforming to BS EN 10223-6 or organic coated wire conforming to BS EN 10223-6.

Chain link mesh is commonly fastened onto the post, such as intermediate post and straining post. Then the barbed wire or razor barbed wire will be attached onto the top and bottom of the fence to resist intruders. line wire is attached top and bottom of the chain link mesh to ensure the structure and increase strength. Line wire is mild steel wire, which is conform to BS 4102. The stirrup wire is used for securing the line wires to intermediate post, which is mild steel conforming to BS 4102. The tying wire is used for securing mesh to line wires, which is mild steel wire conforming the BS 4102.

Chain link mesh with intermediate post is installed along the street.
AIF-09: Intermediate post of anti-intruder chain link mesh.Chain link mesh with straining post is installed surrounding the yard.
AIF-10: Straining post of anti-intruder chain link mesh.
Specifications of chain link mesh anti-intruder fence

Material: zinc coated wire or organic coated wire.
Wire diameter:
Zinc coated wire: 3.55 mm or 5.00 mm.
Plastic coated wire: 3.55/4.75 mm or 4.75/6.40 mm.
Mesh size: 40 mm × 40 mm or 50 mm× 50 mm.
Line wire diameter:
Zinc coated wire: 4.5 mm or 5.0 mm.
Plastic coated wire: 3.55/4.75 mm or 4.75/6.40 mm.
Stirrup wire diameter:
Zinc coated wire: 2.5 mm.
Plastic coated wire: 3.55 mm
Height:
2.4 m if it is not be buried.
2.7 m if it is to be buried.
Post type: intermediate post and straining post.
Specifications of anti-intruder chain link mesh
Item Material Wire diameter
(mm) Mesh size
(mm) Line wire diameter
(mm) Stirrup wire diameter
(mm) Tying wire diameter
(mm)
ACL-01 Zinc coated wire 3.55 40 4.0 2.50 1.60
ACL-02 Zinc coated wire 3.55 50 4.00 2.50 1.60
ACL-03 Zinc coated wire 5.00 50 5.00 2.50 1.60
ACL-04 Plastic coated wire 3.55/4.75 50 3.55/4.75 3.55 2.00
ACL-05 Plastic coated wire 4.75/6.40 50 4.75/6.40 3.55 2.00
The chain link mesh anti-intruder fence can be connected by different post types: intermediate post and straining post. The intermediate post is installed with inward cranks, outward cranks, straight or double extension arms for easy installation of barbed wire.

A drawing of inward cranked intermediate post.
AIF-11: Inward cranked intermediate post.A drawing of straight intermediate post.
AIF-12: Straight intermediate post.A drawing of outward cranked intermediate post.
AIF-13: Outward cranked intermediate post.
1 - Barbed wire.
2 - Double line wire.
3 - Chain link or welded mesh infill.
4 - Ground level.
5 - Barbed top or barbed wire.
6 - Concrete.
7 - Mesh buried or barbed and fastened to sill.

The inward cranked and outward cranked intermediate post should not be installed on the site boundary line.

For improved security, double extension arms should be used.

Anti-intruder chain link fence with inward post is installed surround the forest farm.
AIF-14: Inward post anti-intruder chain link fence.Anti-intruder chain link fence with is installed surround the farm.
AIF-15: Outward post anti-intruder chain link fence.
Anti-intruder chain link fence with straight post is installed surround the forest farm.
AIF-16: Inward post anti-intruder chain link fence.Anti-intruder chain link fence with double extension arm post is installed surround the yard.
AIF-17: Double extension arm post anti-intruder chain link fence.