Swellex Expandable Premium

Since its introduction the Swellex expandable rock-bolting system has gained wide recognition in the mining and tunneling industry. This unique rock bolt consists of a welded tube folded on itself, which is sealed at one end. The Swellex Expandable Premium line is engineered to provide safety and productivity in typical tunneling and mining environments. The improved yield and breaking load values have extended use of Swellex’s expandable system into applications requiring higher workloads from the bolts. A special steel composition, coupled with inherent Swellex advantages, offers perfect installation and immediate support on the entire length, making it the ideal bolt for demanding excavations.
The Swellex Expandable Premium line also comes in bitumen- and plastic-coated versions for corrosion protection.