John Henry drills
vertically, horizontally or virtually at any angle. Combined
with the excavators 360 degree swing the working range is without
equal.
Excellent
penetration rates are achieved by dedicating full power of the
excavator to drilling functions. An additional 100 hp diesel
powered air compressor is installed to provide superior flushing
air for the toughest drilling conditions.
Working range,
shipping dimensions and weights are typical for a John Henry
mounted on a 45,000 pound excavator. Specifications may
change depending on choice of excavator.
