Atlas Copco

Rock Bolting Systems

Rock bolting systems are used to stabilize excavated rock mass in underground mines and tunnelling. Rock bolts are systematically arranged to transfer the load from the unstable surface or exterior of the rock, to the much stronger interior part of the rock. The rock mass can be reinforced by different types of rock bolts. Atlas Copco offers two Rock bolting systems, the Swellex inflatable and expandable rock bolting system and the Roofex Energy absorbing and Monitoring rock bolts.

Since its introduction the Swellex expandable rock-bolting system has gained wide recognition in the mining and tunneling industry.

The installation system for Swellex Expandable rock bolts consits of a high pressure water pump coupled with an inflation chuck that is pushed over the rock bolt's head bushing to conduct the water flow from the pump to the inside of the bolt.