Friction Bolt
USD $3 - $10 /Set
Min.Order:1000 Sets
Pipe seam type anchor rod is a kind of anchor of total length firmly ,Consolidate initiatively to surround the new anchor rod of rock ,Its three-dimensional part is one longitudinal the high-strength steel tube sewn open ,When installing in than pipe way slightly little drill hole ,May exert radial pressure immediately in the scope of total length for hole wall and prevent to surround rock to glid friction force ,Cheng Tuo who adds anchor rod tray supporting plate force, so make surround rock to be in 3 to get force state, and realization has great rock stratum.
In demolition vibration surrounds rock anchor to move etc. condition it is next ,The anchor of later stage firmly force has obvious increase ,When surround rock to occur notable displacement ,Anchor rod and do not lose its to protect to fight force ,It has better property than the rise anchor rod of shell type.
Major specifications
( 1 ) Initial anchor firmly force: The ton of 37;
( 2 ) Pipe Huan La takes off load: The ton of 810;
( 3 ) Anchor rod pipe tension broken ability: The ton of 1213;
( 4 ) Corrosion resistance can than A3 steel high 20-30%, is helpful for to use for a long period