December 15,, 2011 – Commerce City, CO – Atlas Copco introduced the new Series III of its T2W waterwell drill rig at the NGWA Expo in Las Vegas, Nevada, on November 30, 2011. The T2W-III is Atlas Copco’s single-engine rig for rotary and down-the-hole (DTH) drilling in the 30,000 pound class. It is designed for both air and mud applications, and ships with an on-board 900/350 air compressor.
The Series III provides a 12 rod capacity in the carousel at 3.5 inches, with swing in/swing out back load capability—designed to allow single-person operation under appropriate conditions. A rod box, mounted to the rig, carries an additional 12 rods at 3.5 inches. Total depth capacity is 480 feet.
Another new feature is an optional 15,000 pound winch with two-part line, matching the pullback of the rig. This allows the operator to trip out of the hole with the winch or the head. Additional new features include an optional hydraulic front drive assist that delivers a functional 6×6 drive. The automatic transmission provides reduced fuel consumption as well as simplified operation and training.
Two three-speed options are available for the head. A gear-driven head constructed with oversized gears, shafts and bearings is offered for large torque applications, and a smaller, less complex hydraulic vane-driven head is offered for lower torque operation.
The new Series III has a single-cylinder cable feed system that is internal to the tubular derrick, protecting moving components from exposure to the typical drilling environment and rod handling operations. Major components of the feed system are engineered to be larger and more mechanically efficient, so as to reduce fatigue and maintenance. Series I of the T2W had a rack and pinion feed system, while the Series II shipped with a sheave and cable feed system.
An optional 500 horsepower engine is available, and selection between drill and drive mode is made through a split-shaft PTO drive system.