HammerHead Trenchless Equipment has introduced the HammerHead Roughneck R600, the largest of its pneumatic percussion drilling systems for use in horizontal directional drilling (HDD) applications.
Designed for drilling solid rock with bit diameters of 7.25in to 8in (184-203mm), the R600 gives HDD contractors the ability to complete larger diameter bores in fewer passes, as well as access to a wider range of single-pass boring applications.
Josh Hood, HammerHead HDD product manager, said the R600 opens up new possibilities for the horizontal driller: "A typical large-diameter bore might take several passes to open to the final diameter. A larger pilot can help save time and money by eliminating some intermediary passes."
The larger bits driven by an R600 also increase the range of single-pass applications the driller has access to, Hood said, such as in communications and or other service installations.
The R600 completes the range of existing HammerHead Roughneck rock drills available to HDD customers. It joins the R400 designed for 5.25in straight and offset bits and the R500 for straight and offset bits to 6.25in in diameter.
Capable of penetration rates of 150ft (45.7m) or more an hour, all three rock hammers feature heavy-duty, high-flow housing, patent-pending pullback kit, control station/oiler and drill conversion kit, HammerHead stated.