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Ancon CB Coupler Box

CB Coupler Box

Ancon CB Coupler Boxes simplify the continuity of reinforcement at concrete construction joints. They allow engineers to design slab-to-wall connections without the traditional restrictions on bar length and bar diameter of re-bend/pull-out continuity systems and help contractors to eliminate manual bar straightening on site.

CB Coupler Box

The CB Coupler Box utilises the Ancon CARES-approved CXL mechanical rebar connection system. CXL couplers are integral to the CB box and, once the thread protection is removed, accept CXL parallel-threaded reinforcing bars.

Ancon CXL Continuation Bars

Unlike re-bend continuity systems where bar lengths are restricted to the box dimensions, there is virtually no restriction on continuation bar length with CB Coupler Boxes. Grade B500B or B500C continuation bars, threaded with a CXL metric thread, are supplied by Leviat in 12mm, 16mm, 20mm and 25mm diameter. The CXL system is CARES approved and produces a full strength joint.

Details of the standard coupler box range, along with installation guidance, can be found in the technical literature below.

Ancon CS Coupler Strips are also available. They offer all the benefits of CB Coupler Boxes and are specifically designed to simplify rebar continuity at joints where walls are curved on plan.

Latest News

CE, UKCA and CE UKNI marking from Leviat

From January 1st 2021, the UK will recognise both the EU CE marking approvals, for a time limited period, and the new UK based approval system, which will be known as the UKCA mark. The EU will only recognise CE marking by EU notified bodies as proof of efficacy moving forwards. Leviat has been working closely with both EU notified and UK approved bodies to ensure compliance is achieved at the earliest possible opportunity and we can confirm that we have obtained all relevant certification.