Stretch testing

Aramid Rigging cables have stretch equal to that of wire with a 10% larger diameter.

High-tech super fibres such as Aramid can theoretically stretch 2% or less before breaking. In practice, an Aramid cable will usually break at approximately 1% stretch.

At the SWL (safe working load; 30 to 40% of the break load of wire), the stretch is between 0.3 and 0.4%. If fibre tension difference rises above 0.6 %, the fibres will have reduced lifespan and break load, breaking already at SWL. Obviously, this will decrease safety.














Thanks to its endless winding production method, Aramid Rigging can control fibre tension during production within a tolerance of 0.1%, resulting in the highest break load, lowest stretch and smallest diameter possible.