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.
Features & benefits
- Fast installation
- Immediate rock support
- Safe, easy and trouble-free installation
- High performance in hard, fractured and soft rock
- No harmful chemicals needed
- Full column action
- Optional corrosion protection for long-term support
- Fully mechanized, semi-mechanized or manual installation
- High productivity
- High efficiency in all ground types
- Quality control and assurance with each installation
- High yielding strength