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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.

Hollow Bar setup 2