The Vermeer D220x300 Navigator HDD has 242,100 pounds of thrust/pullback and 30,200 lb.-ft. of rotational torque.
It has a 37-foot length and 8.5-foot width. According to Vermeer, this footprint means the unit has the versatility to perform urban utility work, as well as large pipeline installation. The drill is self-contained, with an onboard operator cabin, mud pump, optional crane and rod stager. The smaller footprint also provides more efficient access to confined jobsites and less need for extraneous support equipment.
The onboard Weatherford triplex mud pump has a maximum capacity of 330 gpm and provides sufficient flow of drilling fluid for large-diameter pipe pullback, and can power a mud motor for pilot bores in hard ground conditions. An optional knuckleboom crane can be mounted on either side of the drill (front base anchor) and provides easier maneuverability of drill rod or heavy tooling, Vermeer says. A pin-able, open-top vise design allows for passage and installation of larger downhole tooling, such as non-mag collars and mud motors. The sliding vise can clamp the rod connection at various positions within a 35.4-inch range, allowing for recutting of drill pipe threads and accommodation of inconsistent pipe lengths. The sliding vise allows operators to position the vise for maximum efficiency when reaming or pulling product.
The D220x300 HDD sliding-arm rod stager can stage five rods at a time. Adding to the smaller footprint, this drill utilizes 20-foot rod instead of the longer 34-foot Range II drill pipe, which is standard for a drill of this capacity. The rod is manufactured with API standard couplings, which will accommodate most common tooling in respective applications. The D220x300 shares the same control platform as smaller HDD drills in the Navigator series.