The Universal Bolted Repair Splicing System



Unitec® system is a universal on-site splicing system, that does not need any hydraulic power tools. A standard compressed air supply is sufficient to tighten the bolts and achieve the connection. It is ideal in situations where there is no bar end preparation facility to thread the bars and where it would be too cumbersome to handle a mobile hydraulic press.

Product features

Unitec is a shear-bolt coupling system for the connection of concrete reinforcement bars from Ø12 to 50 mm (ASTM #4 to #18).

Product Benefits

  • Site assembly with standard impact wrench.
  • No need of bar end preparation
  • Readily available off the shelf.
  • Ideal for concrete-embedded bars, repair and retrofil works, bent bars, etc…
  • Type 2 splice as per ACI 318 requirements. Complies with BS 8110 and NF A35-020 standards.

Installation Instructions

  1. Insert the Unitec coupler over the end of the first bar until contact with the centre pin. Strongly hand tighten the bolts from centre to outside with a wrench to pre-position the coupler progressively in order to maintain its alignment with the bar.
  2. Tighten the bolts, from centre to outside, with a power drive (pneumatic wrench) until the heads of the screws shear off.
  3. Insert the second bar into the coupler until contact with the centre pin and repeat the operation. Check the bar alignment when hand tightening the bolts with a wrench: at a distance of 25cm the misalignment should not exceed 5mm (or not more than ¼’ at a distance of 1ft).


Some Major References

​Unitec Documentation

Unitec brochure download

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