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Yanggu Yihui Drilling Tools Co.,Ltd.

ADDRESS:No.216 Zhengyang Road, Qingdao, Shandong,China.



The SDA bar system
Mar 05, 2019

The SDA bar system offers quick installation because of drilling, borehole stabilization and grouting are combined in one cycle.

Self-Drilling Anchors are a bolting solution for unstable ground conditions such as sand, gravel, silt, and clays, and in soft to medium fractured rock formations.

By drilling a hole in collapsing soil or loose rock, with a sacrificial drill bit and a hollow rod, and after the drilling operation injecting cementitious grout or resin into the hollow rod and surrounding cavity, self-drilling anchors are a top productivity solution.

Self-drilling anchors bolts consists of:

  • Hollow anchor rod(s)

  • Sacrificial drill bit

  • Extension couplings

  • Bearing plate

  • Nut

  • Others

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