Horizontal
Directional Drill (Ditch Witch)
Starting Price: $47,000
Torque Range: 450 ft.-lb. - 1,500,000 ft.-lb.
Pullback Force Range: 5,000 lb. - 1,500,000 lb.
Question:
how do you put cable or pipe into place under a busy highway without
stopping traffic, or under a river or mountain? Answer: a horizontal
directional drill. These bore holes in the ground from one point
to another, under the guidance of electronics and, more recently,
computerized programs. Once the hole is bored - and it can be up
to several miles long - the pipe or cable can be attached to the
drill and pulled back. Whatever the job, crew members must be educated
and prepared to react quickly to unexpected and unseen situations. |
