by Therese Dunphy,
AGGREGATES MANAGER September 2014
DRILLING DOWN COSTS
New rigs focus on enhancing productivity while reducing operating costs.
Field studies for Atlas Copco's new FlexiROC T45 with fixed boom show that the unit
uses half as much fuel as similar rigs using the same rock drill, depending on rock
conditions. The COP 3060 rock drill mounted on a fixed boom and aluminum feed
manages large diameters using the T60 drill string. During operation, the operator
can adjust the airflow and the dust collector fan speed according to actual working
demands. The speed of the engine and compressor are then adjusted automatically. It
has 50 percent fewer hoses and 70-percent fewer couplings compared to similar rigs,
the manufacturer says.
Atlas Copco Mining and Rock Excavation| www.atlascopco.us
Cat's MD5150C Track Drill is designed for fast, efficient drilling of 4- to 6-inch holes. It offers a
choice of three different rock drills, a patented carousel rod changer, ergonomic cab, and other
features to boost productivity and reduce operating costs. Compared to its predecessor, it has 18
percent more power, 19 percent faster tram speed, and 40 percent greater ground clearance. An au-
tomated lube system eliminates the need to stop the machine for manual greasing every two hours.
The rod changer and feed assembly have seven patents pending.
Caterpillar | www.cat.com
With the ability to be configured for reverse circulation, diameter rotary, diamond core, and
down-the-hole drilling, Boart Longyear says its LC 6 is ideal for soil sampling in aggregate
operations. A small footprint and fast setup allow for mobility and use in limited space. The drill
features a Duetz air-cooled diesel engine that produces 96 horsepower with a maximum break-
ing torque of 15,120 foot pounds and 5.5 tons of pullback. It can drill up to 460 feet in depth,
using a 4-inch dual tube RC string. It can also be equipped with an automatic soil pressure test
unit for geotechnical investigations.
Boart Longyear | www.boartlongyear.com
Cuts fuel consumption in half
with lower costs
Small footprint for tight