Self drilling bolts are widely used in the field of construction

The emergence of self drilling bolts is a major innovation in the anchoring method of the construction industry. It has applications in various projects such as tunnel advance support, hydraulic engineering project and coal mine roadway. Although each project is different and has its complexity and uncertainty, anchorage support must be carried out during the construction process to ensure the stability of the project. Self-drilling hollow anchor bolts integrate drilling, anchoring and grouting into one step. After construction, the drill bit and anchor bolt will remain in the drilling hole, forming a solid protective layer together with the grouting fluid and rock to achieve the effect of anchorage support.

Sinorock® produces up to 13 types of drills, a total of more than 130 kinds, there are mud drills, cross all-steel drill bits, ball-toothed steel drill bits, etc., The hollow anchor bolts are also varied, with T-type bolts and R-type bolts depending on the type of thread. By series point, sinorock® has different series of products, we can also customize products according to the actual needs of customers. According to the respective characteristics of products, they are applied to different geological conditions and different engineering projects.