The expandable rock bolt is an ingenuous concept. The omega-shaped tube introduced a brand-new way of securing rock roofs from caving in. It’s a tried and tested technology used all over the world.
SSAB ERB rock bolts are made exclusively with high-quality steel from the Nordics and manufactured at an SSAB plant in Sweden. The whole production chain from iron ore to finished bolt is controlled by SSAB. The steel used is clean with consistent properties and extremely good elongation, necessary properties to achieve the rock bolt’s reinforcing qualities.
Since SSAB ERB are installed by just using water, there are no potential hazards from chemicals to worry about during installation or afterwards. The pure steel bolts can remain in the rock without giving any environmental impact.