SINODRILLS T thread hollow anchor bar
The Self Drilling Anchor system is comprised of a hollow threaded anchor bar
with a sacrificial drill bit that performs drilling, anchoring and grouting in a single
operation. Self drilling anchor system is mainly used in slope stabilization, tunneling
pre-support, foundations with micro piles etc jobs, which is widely used in mining,
tunneling, railway, metro construction etc projects.
T thread anchor bar surface with a trapezoidal thread, this design of connection is
much stronger and reliable when compared with rope thread, we supply full sizes
from T30 to T103.
Thread size: T30, T40, T52, T73, T103, T127, T130.
Thread standard: international standard
SINODRILLS R thread hollow anchor bar
The Self Drilling Anchor system is comprised of a hollow threaded anchor bar with
a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation.
Self drilling anchor system is mainly used in slope stabilization, tunneling pre-support,
foundations with micro piles etc jobs, which is widely used in mining, tunneling, railway,
metro construction etc projects.
R thread anchor bar or called rock bolt, soil nail, which is a kind of threaded hollow bar,
bar surface with an rope thread according to ISO 10208 & 1720. It was firstly invented
by MAI on 1960S to solve the low construction speed on complicated underground works,
nowadays; it is very popular all around the world.
Thread size: R25, R32, R38, R51, T76.
Thread standard: ISO10208, ISO1720 etc.
SINODRILLS Self drilling anchor bolts




