Rock Bolts
TS-R Bolt
Hollow-bar rock bolt with grout injection and coupler extension.
The TS-R Bolt is a hollow-bar rock bolt combining immediate expansion-shell anchoring with grout injection through the central bore. Threaded sections can be extended with couplers, providing a flexible solution for varying installation lengths and demanding ground conditions.
- Immediate expansion-shell support
- Grout injection through the hollow bar
- Flexible extension using couplers
- Easy transport of shorter sections
- Fast and straightforward installation
- Suitable for weak and fractured rock
- Corrosion-protection options available
Technical data
- Sizes
- M25-14 and M27-12
- Steel
- 40Cr or S460NH
- Available lengths
- 1–6 m
- Corrosion protection
- Hot Dip Galvanizing NS-EN-ISO 1461, Epoxy Coating NS-EN 13438
Applications
- Road and railway tunnels
- Underground mines
- Hydropower tunnels and caverns
- Underground construction and storage
- Weak, fractured or unstable rock
- Deep boreholes requiring extensions
- Restricted-access installation areas
- Temporary and permanent support
