SDA bolt is a kind of prestressed anchor, which combines drilling, grouting and anchoring together; the maximum tensile force is up to 1950KN.
SDA bolt is a fully threaded steel bar which can be drilled and grouted into loose or collapsing soils without a casing. The bar features a hollow center for simultaneous drilling and grouting and a rope thread for connection to standard drill tooling. SDA forms a standard rope thread profile (R25 – R51, T76 has a trapezoidal thread). SDA can be installed into a variety of different soils and ground conditions ranging from sand and gravel to inconsistent fill, boulders, rubble and weathered rock, as well as through footings and base slabs.
Sinorock – Our company benefits from the dedication and combined strength of Technical & Commercial Staff.Today, we wish to be considered among manufacturers of self drilling anchor bolt system and special bolting as a reference, not only for precise and accurate manufacturing reliability but also for service performance.
Self drilling rock anchors of Sinorock are available in a wide selection of sizes to best meet your requirements. We maintain a fully stocked inventory so that we always have the products you need, when you need them. Complete your construction project with the best tools from a company you can rely on to deliver quality parts. When you are looking for the best, consider Sinorock to seamlessly handle all of your needs.
