Sinorock SDA bolt provide a unique bolting solution for unstable ground conditions such as sand, gravel, silt, clay and soft to medium fractured rock formations. For projects with such ground conditions, Sinorock self-drilling bolts are the most productive reinforcement solution. The anchor rod features a hollow bore for flushing or for simultaneous drilling and grouting. The rod has a left-hand rope thread for connection to standard drill tooling. It is manufactured from API standard heavy wall steel tubing, cold rolled to form a standard ISO rope thread profile. The rolling process refines the grain structure of the steel, increasing the yield strength to produce a durable drill rod suitable for a range of applications.

Fields of application of Sinorock self-drilling bolt range from underground coal mining or ground control for mechanical excavations to injection lances or forepoling.Sinorock provides a diversified portfolio of SDA systems for various applications in Mining, Tunneling, and Civil Engineering which is completed by longtime experience in the production and application of hollow anchor bar.

Sinorock has the excellent anchor bolt system for foundation treatment,Sinorock anchor bolt system – your worldwide partner for innovative systems and solutions for the tunneling Construction,slope foundation and Mining industries.We produce our anchor bolt system through the electric arc furnace route.