Self drilling hollow anchor system is a bolting solution for difficult ground and rock conditions such as sand, gravel, silt, and clays, and in soft to medium fractured rock formations. The system enables drilling and grouting in one operation, making much more saving in job-site and project time.
Compared to a solid bar of the same diameter, self drilling hollow anchor bar is hollow with higher static strength, higher bending and shearing strengths. The length of the self drilling anchor bar is usually 2 meters and can be extended to the required length by threaded coupling sleeves. Besides, self drilling hollow anchor bolt is easy to transport to the work area, simple to assemble and install.
Sinorock has developed rapidly in recent years and it has become one of Asia’s major self drilling hollow anchor bolt manufacturer.
Sinorock products have been exported to Asia, Oceania, Europe, Africa, North America, South America and others. The most important thing is that Sinorock can provide reliable products and excellent services!
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