Built to drill through unconsolidated and gravel formations
The percussion hammer drill uses a powerful double-acting diesel pile driving hammer to drive dual-wall steel drive-pipe into the ground while the onboard 900/350 Air Compressor provides reverse air circulation to remove formation material to clear the borehole. The hammer generates 8,100 ft. lbs. of force with each blow and delivers up to 95 blows per minute.
The Becker Hammer rig’s bit and outer wall of the drive pipe are about the same diameter allowing the drive pipe to remain in continuous contact with the borehole, eliminating the risk of the borehole collapsing. In addition, advancing driving pipe will seal off intervals of contamination of soil and/or groundwater contamination, minimizing the potential for cross-contamination.