Steel Hollowbar SDA

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The HDDR Hollowbar Self Drilling Anchor (SDA) serves as an economical solution for soil nails, tie backs, and micropiles when traditional casing method is not feasible. Using a sacrificial drill bit, the SDA system is capable of drilling a hole while injecting grout at a high pressure, forming a grout column. The system can then be post tensioned to provide needed ground support.

The self drilling anchor system consists of:

     - Anchor Bar

     - Coupling

     - Nut

     - Bit

     - Bearing Plate


HD Drilling Resolution offers a full line of steel hollowbar self drilling anchors and keeps inventory of multiple sizes. Please reference the anchor specifications below and contact us with any questions!

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