| DAVEY KENT DK 920 SOIL NAILING
RIG
The Davey Kent DK 920 soil nailing rig
consists of a boom, hinge, and mast assembly mounted
on a Cat 330 hydraulic excavator. The boom and hinge
allow drilling at all mast configurations from vertical
to horizontal with a single stroke of 45 ft. The kinematics
structure will allow the mast to be turned perpendicular
to the body of the excavator and will allow for drilling
at up to 30 degrees off this configuration. A hollow
spindle motor provides a drill torque of 14,500 ft-lbs.

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