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Home > News > Industry Information > Sinorock, to Be the Pioneer in Self Drilling Hollow Bar
Sinorock, to Be the Pioneer in Self Drilling Hollow Bar

Sinorock is an experienced manufactures of anchoring products. Among these products, the self drilling hallow bar is the basic one. Producing first-class anchoring products and servicing worldwide high-end customers, Sinorock is trying to be the pioneer in self drilling hollow bar.
The self drilling hollow bar is a fully thread hollow bar and it is a part of self drilling anchor bolt. Without casing pipe and drilling pipe, it can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation.
The self drilling hollow bar has different materials, so the function is different,such as: the duplex coating anchor bar and the stainless hollow anchor bar have good anti-corrosion effect. They are mainly used for slope stabilization, foundation with micropiles, mining and tunneling, it is also used in the railway system, metro project, etc. It maintains and strengthens soil and rock, so it provides pre-support and permanent support for the construction of these projects.
The self drilling hollow bars in Sinorock can be well connected with drilling machine, rock bolting jumbo, grouting machine, etc.The hollow anchor bar is a drill pipe which is convenient and time-saving, it can transmit structural load to foundation and then limit the deformation of buildings. Because of it with standard full thread, it can be cut and lengthened according to clients’ specific demands. The anchor bar can be connected by couplings and it is suitable in narrow work spaces. Clients can choose different drill bits for different ground conditions.
Based on the different specifications of anchor bar, the technical parameters is different, and the ultimate load, yield load is different, too. Owing to the conventional standards of self drilling anchor bar: R-thread (25/32/38/51mm) and T-thread (30/40/52/73/76/103/111/127mm), it provides higher bonding stress than smooth steel pipe.
Since the production of self drilling hollow bar, Luoyang Sinorock Engineering Material Co., Ltd. has developed, produced and sold the anchoring products and we have passed the ISO9001 quality system certification. Our company has became the largest production base of self drilling hollow bar in North China, and we are going to be the pioneer in self drilling hallow bar. Welcome to visit, instruct and negotiate business.
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