Heavy Earthmoving Equipment Spotlight


JCB introduces the 64,595-pound JS290 Auto tracked excavator. The machine features a new undercarriage design, refined boom and dipper arm layout, ground level service access and increased cooling capacity. The machine's JS Auto design incorporates a Tier-3, 216-hp diesel engine, innovative hydraulic systems with a Plexus filtration system to eliminate contamination and reduce downtime, as well as a comfortable cab environment. The JS290 can be supplied with long or narrow tracks, a choice of three dipper arm lengths and an XD heavy-duty version for more arduous operating conditions.
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Case Construction Equipment adds the CX350B, CX470B and CX700B (pictured) to its CX B Series line of excavators. These new models feature increases in fuel efficiency and productivity, as well as improved operator comfort and ease of maintenance. They also feature electronically controlled, common rail Tier-3-certified 7.8-liter Case engines, which are engineered to burn cleaner and more efficiently and deliver from 271 to 463 net hp. The CX700B has an operating weight of 153,400 pounds, a bucket digging force of 65,194 pounds and a maximum dig depth of 27 feet, 7 inches.
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The new TD20M extra crawler dozer is available in three track versions — standard, long track and low ground pressure. These machines feature the fuel-efficient Tier-3 Cummins engine to meet lower emission requirements. The electronic control engine has an 8.3-liter displacement and delivers 240 net horsepower, an increase of 15 hp over the previous “H” series model. In addition, an air grid heater comes standard to aid in cold weather starting. The TD20M Extra has a hydraulically driven, suction-type, variable-speed fan located between the radiator and the front engine grill for ease of service and greatly reduced abrasion to the cooling module by eliminating sand and other debris from being picked up by the fan blades and blasted against the radiator.
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The Terex TXC 180LC-2 heavy hydraulic excavator has been upgraded with a fuel-efficient, 118-hp, Tier-3-compliant diesel engine that incorporates an electronically controlled common rail injection system. This advanced system uses high-pressure injection pressure to burn the smallest particle fuel size completely, which eliminates smoke and increases fuel efficiency. This unit also comes standard with a pattern control change control valve that allows the operator to change the control pattern of the boom and stick to suit personal preference. Weighing 38,933 pounds, the TXC 180LC-2 has a dig depth of 20 feet, 5 inches and a 30-foot maximum reach. This unit has a maximum bucket capacity of 1.22 square yards.
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John Deere

John Deere Construction & Forestry introduces two new wheeled excavators, the 190D W (pictured) and the 220D W, featuring Tier-3-certified engines and significant increases in horsepower, weight and digging forces over their predecessors. Both units have fuel-efficient 5.2-liter diesel engines rated at 159 hp, with the 190D W weighing 44,974 pounds, and the 220D W weighing 51,368 pounds, when both are equipped with two-piece booms and front and rear outriggers. Both models are available with mono booms for long-distance work and blades for back-filling. In addition, they feature Deere's Powerwise III engine/hydraulic management system designed to maximize engine output and deliver smooth, predictable multi-function operation while saving fuel.
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Komatsu America introduces the D31EX-22 (pictured) and D31PX-22 crawler dozers. Equipped with Komatsu's hydrostatic transmission, these machines are designed for work in general construction, site preparation, home building, forestry and utility applications. The D31EX-22 machines feature a super-slant nose coupled with a new cab forward design that moves the operator closer to the blade while improving machine balance, ride and stability. Outfitted with a fuel-efficient 3.26-liter, EPA Tier-3-certified Komatsu SAA4D95LE-5 engine, these new models push with a net horsepower of 78 at 2,200 rpm, and range in operating weight from 17,020 to 18,827 pounds, depending on the machine version. With 86 inches of track on the ground both standard (EX) and low ground pressure (PX) models offer customers weight distribution and flotation options to best match their application.
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The Hitachi Zaxis 850LC-3 is designed for quarries, demolition and heavy construction jobs. The pairing of Isuzu's Tier-3-certified 532-net-peak-hp AH-6WG1XYSA-03 engine with Hitachi's HIOS III hydraulic system has increased engine output as well as bucket and arm digging forces. Operators can tailor machine performance to the job by selecting one of three power modes — Economy, Power or High Power. HP ensures efficient arm roll-in during deep excavation. The Hitachi HIOS III hydraulic system uses arm and bucket regenerative systems to boost front attachment speed. A boom mode switch, when turned on, reduces vibration and impact shock-loads due to less lifting or pulling of the body, increasing comfort.
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Kobelco Construction Machinery America introduces the SK295LC, the company's newest redesigned full-size excavator. The SK295LC ACERA Mark 8 features a Tier-3-certified FPT turbocharged engine. The Kobelco Power Boost system offers 10-percent more bucket breakout force on command, while the Intelligent Total Control System recognizes the operator's moves, providing progressive power where and when it's needed. The excavator comes standard with a longer X-frame for increased stability and a heavy-duty boom and arm. The power-mode selection feature allows the operator to choose from four different modes, depending on the job type and difficulty level.
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Gradall Industries introduces its XL 5100 III excavator — the company's largest production model for construction markets. The new XL 5100 III, weighing just over 55,000 pounds, reflects a new Gradall design philosophy that delivers increased performance, cost containment benefits and a shorter carrier for easier highway mobility and a shorter rear swing. Unlike the XL 5100, which the new model replaces, that used two Cummins engines, the XL 5100 III uses just one Detroit Diesel Mercedes engine. Conserving fuel while producing greater horsepower, the new engine operates both the truck carrier and the upper structure and boom. Plus, the concept reduces maintenance costs with only one electrical system, one radiator, one set of filters and other non-redundant features.
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The new Volvo L45F and L50F (pictured) wheel loaders feature patented Torque Parallel loader linkage, separate working hydraulic pumps for maximum power, 100-percent axle differential locks, the Volvo Care Cab and long service intervals. The Torque Parallel linkage gives both models smooth, parallel lift, high rollback torque and sufficient lifting power. The models also offer easy pallet visibility and a clear view of attachments.
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New Holland

New Holland's crawler dozer line now offers an optional side boom attachment for pipe-laying applications. The side boom option is initially available on the D85B and D95B (pictured) models. The attachment offers a lift capacity of 20,000 pounds and features a three-lever hydraulic control system that permits the operator simultaneous control of load and boom functions. Designed to be easy to operate, the system reduces training time and increases operator safety. The 15-foot side boom conveniently folds for ease of transportation, and two extendable counterweight segments, each 1,120 pounds, can be easily removed for shipping.
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The SV510-III Series 84-inch single-drum compactors from Sakai offer a choice of drum types and options. Designed for high yardage compaction jobs on a wide range of soil types and rockfill, these compactors are suited for highway and airport sub-bases, embankments, dams, reservoirs and large commercial tracts. The SV510 Series comes in four model variations to suit the end user's needs. A smooth drum model, the SV510D-III, is designed for rock and granular materials while the padfooted SV510T-III (pictured) is suited for cohesive materials, silts and clays. This latter version is also available as a TB version with a strike-off blade that eliminates the need for additional backfilling equipment and labor. The TF version includes a padfoot drum encased within a bolt-on smooth drum shell that can be removed when working on cohesive soils.
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Caterpillar introduces an integrated remote control system for the D10T, D11T and D11T CD track-type tractors. The new Cat system meets ISO15817 and AS/NZS4240 safety standards and permits miners and other large-tractor users to work safely, productively and economically in a broader range of applications. With an integrated remote control system, equipment users can work in hazardous environments, meet regulatory requirements and reduce liability, while protecting operators from excessive noise, dust, vibration and other potential threats to health and safety. It will be commercially available in 2009.
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