Hollow anchor bolt is a soild reinforcement tool

has been widely used for underground engineering construction support project and have solved the problems of underground side wall and arch section,as well as silp casing by pressure and anchoring support of arch hollow anchor bolt with certain elevation.Guarantee the safty and quality of construction.
Self drilling hollow bar is designed for strengthening surrounding rock of various kinds of underground constructions.The self drilling hollow bar is based on the hollow bar with continuous thread on it's surface.Equiped with matched accessories,mortar can be filled full and solid within the hollow bar.Aslo,mortar can penetrate through the crevice of rock under a pressure of weight that up to ten kilogram.To attain a best solution,Each anchor bolt provide certain anchor power by using anchor nut.

As an important form of reinforcement in geotechnical engineering, supporting is safe, effective, and economical, etc.
Therefore, the hollow anchor bolt will have more and more application in the international geotechnical engineering fields.
Maintaining construction specs can be an arduous task when custom self drilling bars are needed. The specialty of Sinorock is being able to create the exact size and measurement of self drilling bars for your construction project. Sinorock is a supplier of engineered support solutions to the civil work and geotechnical industries. With very well established research and development facilities, manufacturing plants and commercial services for each of our market focused divisions; Sinorock has positioned itself over time as a leading self drilling bar supplier to the civil construction.
Our company had passed ISO9001 certification in July 13, 2012, the integration of the system of management of several, our company reach the international standard. Sinorock is committed to continue to provide stable customer expectations and satisfaction of qualified self drilling bolt products.

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