SAS Stressteel Hollow Bar System
The SAS hollow core bar system consists of three main components, the head, the steel tendon, and a single use drill bit. The steel tendon is a hollow core bar with continuous cold rolled threads throughout the bars 10' (3m) length. The continuouse threads are beneficial in the fact that they allow the bar to be cut at any desired length, or joined with our exclusive coupling system to achieve your desired drill depth.
Designed to increase production, the SAS hollow bar system can be simultaneously drilled and grouted into loose or collapsing soils without the need for a temproary casing. In order to insure smooth installation, SAS supplies a large selection of drill bits, allowing our customers to install the hollow core bars in a variety of different soil conditions with most standard drill rig configurations.
Due to the wide range of cross-sections and bar diameters available, we can design a system for you to carry almost any required load.