Introduction to Channel Systems

The Signfix system of extruded aluminium channels has been developed since its introduction in 1972 to provide the sign industry with tried and tested products for sign manufacture.

Signs framed using the Signfix system are easy to manufacture and offer greater on site flexibility, as post centres are not critical and signs can be easily offset.

Using Signfix components to build modular signs

The family of Signfix channel extrusions are cleverly designed to build road traffic signs in a "modular" fashion. Everything from small time-plates, right up to large motorway direction signs utilising the same basic principles.

The various techniques for modular sign fabrication are detailed in subsequent pages.

In all cases, it is important to ensure that channel spacings are used in accordance with Signfix specifications and that the complete sign panel structure is supported by the correct number and size of posts.

The signfix centre spacing charts should be followed exactly to ensure sign assemblies comply with BS EN 12899-1.

Specification

Signfix aluminium channel extrusions are produced to BS EN 755 and supplied in 6082 T6 or 6063 T6 specification. These alloys are classified as a medium strength aluminium alloy and combines excellent corrosion resistance with high structural properties. The use of this material produces signs with excellent structural rigidity and resistance to deformation at fixing points.

Surface Finish

Signfix extrusions can be supplied either unfinished (mill finish aluminium) or polyester powder coated black or aircraft grey. Although mill finish extrusion has good corrosion resistance in rural environments we would recommend the use of painted channel in marine and heavy industrial areas.

Deterring Theft

Signfix channels feature 'Lip Lok'. designed with maximum resistance to being 'sprung' or forced open by vandals or thieves. Where additional security is required, vandal proof nuts can be supplied to deny the thief access.

Vandal proof nuts shear off under torque to leave a dome-headed tamper proof fixing.