Features of Self-drilling Threaded Anchors
ONTON’s wholly-owned R&D center has strong R&D capabilities and the ability to transform technology into productivity.
Self drilling threaded anchors can achieve drilling and grouting in one step to greatly reduce installation time.
1. Drilling. Use a trolley or drilling rig to drill the threaded anchor rod connected to the drill bit to the designed depth. 2. Grouting. Remove the drilling rig, install the grout stopper, 25cm away from the hole. Connect the exposed end of the threaded anchor rod to the grouting machine through a quick grouting joint. Start the machine to grout. 3. Stop the grouting machine when the grouting is full and the pressure reaches the design value. The grouting pressure is determined based on the design parameters and grouting machine performance. Water-cement ratio reference value: (0.35~0.45):1. 4. Install backing plate and nut to lock the anchor rod according to design.