Slot & Wedge Bolt
- -A proven solution – used in LKAB’s underground mines for over 40 years
- -The wedge enable pre-tensioning before the concrete hardens.
- -Immediate load-carrying capacity
- -Suitable for using with either resin cartridges or cement grout
- -Used for permanent ground support
- -Quick and easy installation by mechanized tools
- -Available in black or hot dip galvanized
Slot & Wedge bolt
Slot & Wedge bolt which also named Kiruna bolt can be manufactured from full threadbar, TR-bar or rebar. One end is cut into a 100mm cross slot to insert the steel wedge and the other end is rolled thread.
Functions
Full threadbar bolt can be an effective rock reinforcement system for underground rock support.
Being used with face plate, domed ball,anti-friction washer and nut,Spherical washers can force even the direction,increase the bearing capacity of the tray.
Using thread segment was part of two of the parallel processes to mixing resin anchoring agent,and then drill with reverse pre-stressed.
Bearing plate
Domed nut, hex nut, anti-friction washer,domed plate
Length and Package
1.Pack the bolts in the bundles.
2.Bolt fittings, such as nuts, anti-friction washers and domed balls, are supplied install on the rock bolts in the configuration requested.
Applications
Mines
Tunnels
Slopes
Places where need ground support
