Self drilling bolt is a hollow, thick-walled seamless steel pipe, with standard continuous thread on its surface. It consists of self drilling hollow anchor bar, plate, nut, coupling and drill bit, anchor bar can be cut and lengthened as requirements. With functions of drilling, grouting and anchoring, it can be widely used in broken stratum, sandy gravel, high water-bearing strata, especially for slope supporting in narrow deep foundation pit, without casing, economical and high-efficiency.
The self drilling bolt system of Sinorock has become an established tool in the industry for mining.Through innovation we have developed the simple and very effective anchor bolt system for supporting the mine in inaccessible places.Our expertise has stood us in well stead in a number of major long-term research projects.
Our company has an in-house designing and manufacturing infrastructural facility further supported by excellent modern technology and
equipments with dedicated and diligent workforce. All these put together aids us in carrying out our various processes right from designing the concept, manufacturing products, quality and specifications verification phases, until the final delivery of the promised anchoring type to the customers.