EXPANDABLE ROCK BOLTS
Although expandable rock bolts are very effective in protecting tunnel shafts and underground mine galleries, they are also expensive to install, take up valuable space and are difficult to remove.
If you want to secure your tunnel or mine gallery and use space efficiently, expandable rock bolts are not the best option.
With our boltless rock bolt system, you get the same level of protection while saving precious budget and space. Our system eliminates the need for installing bolts — instead, all you need is a drill machine and a few bolts to make your tunnel or mine gallery secure.
|Variable lengths Up To||6M||6M||6M|
|Original Pipe Diameter||41MM||54MM||54M|
|Maximum Pipe Diameter||26MM||39MM||39MM|
|Recomm Drill Diameter||36-38MM||45-51MM||45-51MM|
|Minimum Breaking Load||120KN||160KN||240KN|
|Weight||2 Kg/M||2,7 Kg/M||3,9 Kg/M|
|Raw Material Quality||S 355-MC||S 355-MC||S 355-MC|
|Front Bushing Diameter||28MM||38MM||38MM|
|Diameter of the Inflation Bushing||30MM||41MM||41MM|
* Regarding the packaging, the bolt are strapped with single-use straps in bundles of 50 and 100 bolts to make unloading easier.