deep hole driller 1 2013 20 te C hni CA ll y S pe A king A round the world water well rig own ers and operators appreciate the At las Copco T2W truckmounted drill ing rig for its application versatility high productivity and ability to get in and out of even the most rugged conditions The T2W rig s threespeed rotary head has 3500 footpounds at 275 rpm and 1 2 0 00 fo ot p o un ds o f t or q ue a t 80 r pm Onboard air comes in a variety of options which include up to a 900350 air compres sor Coupled with a 500 hp for 900 air 372 kW engine 30000pound 13607 kg pullback capabil ity and 15000pound 69 t onne hoi st a nd you ha ve an i ncre di ble range of capability from a rig designed for both air and mud applications That s why it s not unusual to fnd a T2W contractor one day rotary drilling the top 24inch diam eter of a munic ipal water well s profle setting 18inch steel casing and fnishing that well to depth with a 15 i n c h pn e u m a t i c h a m m e r a n d t h e n t h e v e r y next day fnd him in a residential district slipping his rig in between two houses to d ri l l a g e o t h e rm a l l oo p fe l d whe re l a r ge r truckmounted rigs won t ft The T2W rig s characteristic versatility and robust design have not changed in three generations of the model but more features have been included in the new Series III upgrade than any machine in its class That the rig is so popular is no surprise as most of these features came directly as a result of driller feedback and recommendations 12rod carousel with backloading capability from a 12rod box W ith application s such as geothermal loop feld drilling in mind the Series III carousel c a p a c i t y wa s b u m p e d u p t o 1 2 r o d s T o g e t h er with a rigmounted rod box which carries another 12 sticks of 35inch rod total depth capacity is 480 feet without having to bring a pipe trailer to crowded jobsites The carousel itself is a swing inswing out type During transport the carousel folds over the derrick to lie bala nced over the truck s center line for improved road handling The carousel has backload ca pability during operation so it allows easy singleperson operation depending on the situation Since the carousel brings pipe to the top head the top head only has to travel in one direction to clear the way for han dling pipe with the main hoist auxiliary hoist or sand reel Consequently this gives operators the utmost confdence of perfect alignment every time they bring the top head back to center against a positive stop Head options One option is a gear driven head con structed with oversized gears shafts and bearings for lar ge torque applications The other is a smaller more compact hydraulic vanedriven head for lower torque opera tion Both are threespeed designs Single tube derrick T2W owners who experience its wide open workspace and uncluttered deck of fered by its tubular derrick prefer it over latticestyle derricks especially during lar gehole work and case welding Though lighter in weight than traditional lattice derricks the tubular tower provides supe rior strength and resistance to linear and torsional de f ect ion and accommodat es V ersatile The T2W rig s characteristic versatility and robust design have not changed in three generations of the model but more features have been included in the new Series III upgrade than any machine in its class