Self drilling anchor system components
Time:2022-11-11 14:41:29From:This Site

The self drilling anchor system works of one or several coupled hollow bars for drilling with water or air flush or for simultaneous drilling and grouting.




SELF DRILLING HOLLOW ANCHOR BOLT

The hollow bar features a left hand or right hand with R thread (rope / round thread) or T thread (trapezoidal thread) for easy extension and connection to all conventional drill rigs. It is manufactured from high quality seamless steel tubes. The R thread and T thread all according to ISO standards or international standards, and both thread formed in a cold rolling process.




COUPLERS

The couplers are used to extend the hollow bars. The required length of the load-bearing element can thus be achieved also in cases of limited feed length of the drill rig or low headroom conditions.

All couplers are designed to safely transfer the specified system load, with the faces of the hollow bars bearing against each other to ensure safe energy transfer between the hollow bars and the drill bit without affecting the couplers mechanically.




PLATES

The steel plates feature a chamfered bore allowing an angle of deviation of 5 degrees in all directions.



NUTS

The nuts transfer the load from the plate into the hollow bar. They feature a spherical cap on at least one end to compensate for angle deviations. All nuts are so designed as to ensure safe transfer of the specified system load.



DRILL BITS

The correct selection of the drill bit dependent on the geological conditions on site is essential to ensuring a productive and cost-effective installation of the Self Drilling System.