Sinorock Hollow injection bolt system can be used for drilling, injection, anchoring and stabilisation in one single operation,resulting in substantial reduction of site time compared to traditional techniques.The
stabilisation and strengthening of incompetent strata is faster and more effective with the Hollow Injection Bolt System, also providing cost benefits to the client.
The injection bolt is hollow compared to a solid bar of the same diameter and offers higher static strength, ie higher bending and shearing strengths.

Continuous coarse threads - The hollow injection drill rod/anchor bolt is available in 2m lengths and can be extended to the length required by threaded coupling sleeves.

Cost saving - By effectively drilling, anchoring and injecting in one operation, substantial cost benefits can be achieved.

Grouting Medium - Polyurethane or cement based grouts can be used as the injection material. The choice of grout is dependent on strata conditions and time constraints.

Easy handling - The Hollow Injection Bolt System is easy to transport to the work area, simple to assemble and install.