Self Drilling Hollow Anchor Bolt

Self Drilling Hollow Anchor Bolt R - thread , Anchor Drill  R25 to T130

1. Brief Introduction:
 
ROSCHEN self drilling anchor bolt system is manufactured from heavy wall steel tube. The anchor bar features a hollow bore for flushing, or simultaneous drilling and grouting. The anchor bar are cold rolled to form standard thread profile. It's available in different dimensions from R25 to T130. The detailed specification of self drilling anchor bolt is shown in the table below.
 

2. Application:

Self drilling anchor bolt system is a reliable and convenient anchoring system which is applied in complicated geological conditions for rock support work. It is particularly applied in the following geological conditions, such as weathered rock, gravel layer, backfill, hard conglomerate, gravel layer, etc.


3. Characteristic: 
 
 1. Easy to penetrate various rocks.
 2. It can be elongated by using couplers. 
 3. Unnecessary to be pulled out.
 4. The hollow bar can be used as grouting channel.
 5. Drilling, grouting and anchoring can be finished at the same time.


4. Specification: 

5. Installation process:

 
6. Projects: