Application
Resine bolt G type are designed to be used for roof and ribs support in mine working areas and for tunneling as an independent or additional roof support system.
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Resine bolt G type
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Technical description
- Resine bolts G type are of modern construction of high capacity – over 300 kN.
- Rods are made of rib bar dn=20, dn=25, dn=28 mm.
- Domed washers of dimension 150 x 150 i 200 x 200 are made of steel sweet 6,8 and 10 mm thick.
Bolt type | Steel grade | Re min (MPa) | Rm min (MPa) | A5 min % | Bolt capacity (kN) |
G20/20 | Â BSt 500S Â | Â 500 | Â 550 | Â 16 | 180 |
G25/24 | 250 | ||||
G28/27 | 330 |
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G type bolts were examined in Technische Universitat München with positive result.
