Aggregates Manager

May 2014

Aggregates Manager Digital Magazine

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Page 16 of 43

15 AGGREGATES MANAGER May 2014 Supply by Therese Dunphy, Editor-in-Chief EXCAVATOR OPTIONS A bevy of new excavators round out existing offerings in this product category. The Doosan DX350LC-3 excavator features a 281-horsepower engine, a 77,603-pound operating weight, and a 41,667-pound arm digging force. Built for the most rugged condi- tions, this excavator features significant power and performance increases to go along with its Tier 4 interim status. A new boom float option allows the boom to move freely up and down without hydraulic flow, while a temporary reset button offers the ability to momen- tarily disengage the float, allowing hydraulic flow to activate the boom. Doosan Infracore | Cat's 374F excavator uses its ACERT C15 engine to meet Tier 4 Final emission regulations and burns 13 percent less fuel than its D Series predecessor. With a net power rate of 472 horsepower, the engine uses a combination of emission control technologies, including elec- tronic management of fuel injection/intake air systems and Cat exhaust aftertreatment sys- tems to meet requirements without impacting performance. Two power modes — standard and economy — allow the operator to select an engine speed that meets the application needs. The unit has a maximum digging depth of 31 feet, 7 inches and a maximum reach of 46 feet, 8 inches. Caterpillar | Weighing in at 105,822 pounds, Liugong's 950E is one of its largest crawler excavators. It features the manufacturer's Intelligent Power Control System (IPC) to provide more accurate matching and control over engine speed and main pump flow for more powerful and smoother operation. Six selectable work modes optimize fuel consumption, while an auto idle function reduces engine rpms to 1,000 rpm once the machine has been at rest for seven seconds. The unit is powered by a Cummins QSM11 375 Tier 3 diesel engine. Liugong | With 359 net horsepower, Komatsu's PC490LC-11 is powered by its Tier 4 Final SAA6D125E-7 engine and features an operating weight between 105,670 pounds and 110,220 pounds. The unit has a heavy-duty undercarriage and counterweight to maintain the same high-lift capacity and lateral stability as its predecessor. The operator can select Lift Mode, which raises hydraulic pressure to increase lifting force up to 7 percent. The machine is also equipped with the Komatsu Equipment Management Monitoring System. Komatsu | Built for rugged conditions Tier 4 final unit reduces fuel consumption Saves fuel with auto idle Offers heavy-duty undercarriage

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