Ground support

R thread Self Drilling Anchor Bars

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

Description

SINODRILLS R thread Self Drilling Anchor Bars


Hollow anchor bar is the body of a self-drilling anchor, as a hollow steel tube with an outer round thread, hollow anchor has the sacrificial anchor bit connected at one side, plate and nut connected at the other; two hollow anchor bars could be connected together via a coupling, for duties that requiring longer anchors.


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.



Features

• Stable quality;

• Thread is compatible with ISO and other international standards;

• Good mechanical performance.



Applications

Pre-supporting, micropiling for foundation underpinning, slope anchorage, etc.



Parameters



Size


O.D (mm)I.D (mm)Ultimate Load (kN)Yield Load (kN)Weight (kg/meter)


R25N-14


25.014.02001502.3


R32L-22


32.022.02101602.8


R32N-21


32.021.02802302.9


R32N-18.5


32.018.52802303.4


R32S-17.5


32.017.53602803.5


R32S-15


32.015.03602804.1


R32SS-14


32.014.04053504.3


R38N-21


38.021.05004004.8


R38N-19


38.019.05004005.5


R38S-18


38.018.05604606.0


R51L-38


51.038.05504506.0


R51L-36


51.036.05504507.6


R51N-36


51.036.08006307.6


R51N-33


51.033.08006308.4


R51S-30


51.030.09307309.4


T76N-49


76.049.01600120016.5


T76S-45


76.045.01900150019


Thread direction: Left hand / Right hand



Thread standsrd: ISO 10208 / ISO1720 / Other international standards



Please contact our sales team for more specifications.