Products - Swellex Bolt

The Swellex is a folded steel tube, which is inserted into a pre-drilled hole in the rock. Water is blasted into the tube at high pressure, blowing out the fold and expanding the tube into the exact shape of the hole, adapting to every irregularity.

Bolt installation takes less than 30 Seconds, and provides full and immediate support along the entire hole length, in ground conditions raging from the hardest rock to clay even non-cohesive material.