Kiruna Bolt
Kiruna Bolt is made of hot rolled ribbed bar(TR Bar or Rebar).
Kiruna Bolt
Kiruna Bolt is made of hot rolled ribbed bar(TR Bar or Rebar).
Applications
Product Introduction
Kiruna Bolt is made of hot rolled ribbed bar(TR Bar or Rebar).One end is cut into a 100mm cross slot to insert the steel wedge,the other end is rolled thread.This bolt has been approved in Sweden Mines.
Features and Advantages
-One end is cut into a cross slot to insert the steel wedge.
-Slot and wedge device offers expansion friction strength to get a good point anchorage.
-Sharp wedge could break the resin cartridge easily to improve installation efficiency.
-Spherical washer provides up to 180° angle of tile.This“user friendly” rounded corner can greatly increase the bearing capacity of the plate at the bevel of rock.
-Used for permanent support in mines and tunnels.
-Fast and easy installation by mechanized tools.
-Available in black or hot dip galvanized.
Bearing plate
Round plate,Domed plate.
Accessories
Domed nut, hex nut, anti-friction washer,domed ball.
Length and Package
Length:1.8m / 2.2m / 2.4m or as requested.
Package:100pcs each bundle as specified.
How to work
After drilling a hole and inserting steel wedge into the cross slot,drive and rotate the thread bar to ensure the wedge contacts with the surface of hole end.Impact the external end of the bar by drilling machine,the steel wedge will expand the slot,which leads to an expansion friction strength between rock and bolt to get a good point anchorage.
Installation Guide
-The nature of the ground must be evaluated.
-Drill a hole with punch according to the diameter of rock bolt,the diameter of hole is 6mm-12mm bigger than the rock bolt.
-Before installation,the hole should be blown and cleaned by compressed air.
-If use resin,push the resin into the hole by hand or machine,ensure it could reach to the top of hole.
-Rotate and push the bar,when the plate reaches the roof,spin bolt to ensure that mix the resin completely.The mixing time should be controlled strictly according to the using in struction of resin.
-Screw the nut tightly when time is up.