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This news article was originally written in Spanish. It has been automatically translated for your convenience. Reasonable efforts have been made to provide an accurate translation, however, no automated translation is perfect nor is it intended to replace a human translator. The original article in Spanish can be viewed at Lo más avanzado en excavación y movimiento de tierras

The ultimate in excavation and earthmoving

Drafting Interempresas17/02/2010

February 17, 2010

The excavation and earthmoving is an essential part in any type of public work. The speed, energy saving and the maximum production are the three characteristics that a client expects to have to carry out successfully its work. Let's see some examples of excavators of companies working to offer such service.

New generation of mini excavators with faster work cycles

The mini excavators Bobcat E45 and E50 of cantilever swing (ZTS) are 4 to 6 tons. Designed to be used in buildings, demolitions, rent, utilities, landscaping and other markets, both excavators offer quick work cycles with a smooth and precise control of the functions of the Working Group, comfort of the operator, and lower noise.

Equipped with cabin and bucket, the E45 has an operating weight of 4,634 kg and offers a maximum depth of excavation of 3,300 mm. The E50, equipped with cabin and bucket has an operating weight of 4,905 kg and a maximum depth of excavation of 3.524 mm.

Powered by diesel engine turboprop Tier III 4 cylinder Kubota V2403-M-DI-TE38-BC-5 and V2403-M-DI-TE38-CB-4, respectively, they produce 30.2 kW and 35.4 kW net per SAE J1349 of power output to 2,200 RPM. Both the E45 as the E50 model save fuel and offer a great power. The E45 and E50 models include the standard function of 'auto idle' which reduces fuel consumption and noise, thus creating a more comfortable environment. The function 'auto idle', that can be activated when the operator want you, automatically results that engine within idle if the functions of the bulldozer are not used for a period of four seconds. The engine automatically returns to the preset position of the accelerator when the operator moves a lever or a function of displacement.

Bobcat has also developed four new rotating telescopic handlers.


Mini excavators Bobcat E45 and E50
Mini excavators Bobcat E45 and E50.

Dumpers articulated with loading and digging

Doosan, represented by Centrocar, has reinforced its Heavy range with the introduction of new dumpers articulated following the acquisition of Moxy in August 2008. Doosan can now offer its customers a range of operational teams to carry out loading and digging.

The Doosan Moxy range consists of 4 models: MT26 - MT31 - MT36 - MT41.

The MT26 and the MT31 offer a 24.6 to 28 ton payload capacity. They are powered by a Scania aviaco engine which develops a gross power of 318 HP at 340 HP. The MT36 and the MT41 offer a 32.7 to 37.2 tonnes payload capacity. They are powered by a Scania DC12 engine which develops a gross power of 400 HP at 448 HP. The MT26 and the MT31 presented, as well as the MT41 and MT36, multi-disc brakes with oil bath, the guarantee of a cycle of exceptional life and a total protection against the difficult environment in which these machines are evolving.

The Scania engine with supercharger "air-to-air" temperature exchanger offers a low power consumption and is in accordance with the norm of Tier 3.

The Doosan Moxy articulated dumpers are kind of integral traction 6 x 6 for a balance of power while the suspended rear bogie and the system of special joint promote excellent performance of driving in difficult terrain. Another unique feature of the articulated dumpers Moxy, independent front suspension (deletion of the rigid axis) that allows a single movement of the wheels, a further guarantee of maximum with the soil contact and a good damping of the rebounds.

Dumpers of Doosan Moxy range
Dumpers of Doosan Moxy range.

Excavators of chains with automatic recovery and damping systems

The excavators of chains New Holland Kobelco, represented by CNH Machinery Spain, have a net power of 209-284\1CV\2and his maximum weight in order of work is of 38.450 kg. For the model THE/LC and of 37.000 for the model BEH. The capacity of the spoons goes of 0,72 to 1,8 m3 for the model THE/LC and of 1,12 to 2,10 m3 for the model BEH.

Carries incorporated a device Power Boost continuous that allows to work without problems and with confidence. It has rediseñado and improved all the structure of the And385B to guarantee the perfect adaptation to his higher performance improving the position of the centre of gravity, optimising the distribution of the efforts and adopting plates of steel of greater quality. To delete hits and his repercussion in the rest of the structure when the pistons arrive at the end of his career, the cylinders have of automatic systems of recovery and amortiguación. The long chassis of the versions THE/BEH and LC, together with the weight of the structure delivered strategically, contributes to improve the stability of the machine to the time that avoids the unpleasant effects of jumps, even in conditions of difficult excavations.

The characteristics of this improvement in the design are the new engine Hino Common Rail respectful with the environingingment.

New Holland Kobelco E 385B crawler excavator
New Holland Kobelco E 385B crawler excavator.

Dump trucks, articulated with a 6 cylinder engine turbo

The dúmper 718 ADT of JCB Machinery has an engine of 6 cylinders turbo of 177\1CV\2 a constant traction to the 2 or 4 wheels, differentials of skating limited in all the axles of transmission, 6 speeds for the trip to forward and 3 speeds for course backwards with manual or automatic operation, in addition to brakes of disk in each one of the wheels.

With a capacity of useful load of 18 American tonnes, the angle of the extremes of the box is of 25º, whereas the 84º of dump of the box allow to realizar a download of effective material.

Articulated dump trucks 718 ADT
Articulated dump trucks 718 ADT.

Bulldozers crawler hydraulic system of two circuits

Liebherr presents the new generation of crawler excavators. The R 906 Classic, with an operating weight of 21.7 tons and a power of the engine of 105 kW / 143 HP, has everything what is needed in applications of excavation as it is composed of a monoblock team of 5.4 m and 2.4 m boom

The enormous range of accessories of the Advanced versions, is represented with the R 916 Advanced with adjustable boom laterally. The excavator has a power of the engine of 115 kW / 157 CV and an operating weight of about 25.4 tonnes.

The R 926 Advanced offers an equipment for multiple applications in Advanced versions only, and is composed of a monoblock 9 m and a pen of 6.8 m. Operating weight is about 26 tonnes and the power of the engine of 130 kW / 177 HP.

The hydraulic system of two Positive Control circuits available to of crawler excavators need to flow quickly and without significant influence of the feeders, optimum use of energy is thus achieved.

Properties of configuration consisting of the new technique integrated excavator from Liebherr allow a lower fuel consumption, less vibrations and, thereby, more profitability and comfort. It has properties designed for the operator, as the precise control and the mode of continuous work with overlapping movements.

Comfort for the driver extends the new cabin for the operator, with the interface between man and machine easy to use. Comfortable handling through the intuitive control with the display color with video and optional display of rear space greatly facilitate the daily work.

Excavator crawler R 906 Classic
Excavator crawler R 906 Classic.

Articulated dumpers of fully hydraulic suspension

The articulated dumpers A40E FS of Volvo are completely hydraulic suspension. The dumpers series FS (Full Suspension) combine the maneuverability with high levels of speed and comfort. The dump trucks can travel at maximum speed, both uploaded as free of load, even when the field of transportation routes is very uneven. For the comfort and the efficiency of the operator working in a dump trucks with a minimum of vibration.

Equipped with trains of power of the Volvo brand, designed for the difficult conditions that must resist, the articulated dumpers A35E FS and A40E FS have the strength and durability needed to maximize productivity.

A40E FS models are equipped with Volvo D16E AAE3/ABE3 engine with a maximum power of 1,800 rpm. The maximum speed reached is 57 km/h with a carrying capacity of 39,000 kg. and a net weight of 30,600 kg.

A40E FS dump trucks of Volvo
A40E FS dump trucks of Volvo.

Dump trucks, articulated with low consumption of fuel

Terex has launched one of its most powerful articulated trucks until today: the TA400.

This model replaces the current TA40 Terex in the range of articulated trucks and has been developed to maintain high levels of productivity and low consumption of fuel as require it customers.

To this truck is he has provided a new hood and grille design, equipped with a first class engine to deliver excellent performance, reliability and fuel economy.

Inside the TA400 Terex has been redesigned with a number of different applications to provide greater comfort to the operator. From the total control so that the experience behind the wheel is extraordinary, including the redesign of the air conditioning, that all the instruments and control commands are located in groups, following a logic to facilitate leadership and functionality. Also to ensure the comfort of the operator have been reduced levels of noise in the interior of the cabin. At the same time, new designs of mirrors provide excellent visibility.

Terex TA400
Terex TA400.

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