Power and efficiency in the quarry

After a three-month selection procedure, the company Oberrheinische Baustoff GmbH (ORB) decided to order a Doosan DX420LC crawler excavator to be used in their quarry at Rickenbach (Fig.). In addition to the power of the crawler excavator, a particular criterion also was the low fuel consumption, which was the lowest of the units tested and, in one case, was even up to 35 % below that of a competitor. The combination of performance and efficiency is due to the new common-rail engine of the DX420LC. It has a power of 218 kW (297 hp) with 1800 rpm and a maximum torque of 1373 Nm with 1300 rpm. The common-rail technology and 4 valves per cylinder optimize the combustion and minimize the exhaust emission. Together with the new control system e-EPOS (Electronic Power Optimizing System), which now communicates with the engine management via a CAN (Controller Area Network), this system also reduces the fuel consumption.


Doosan Infracore Construction Equipment, Waterloo (B),



Related articles:

Issue 2011-07-08

Doosan quarry and mining equipment

At the steinexpo 2011, Doosan Infracore Construction Equipment will exhibit crawler excavators, wheel loaders and articulated dump trucks from the company’s comprehensive range of heavy...

Issue 2014-07-08

Technology for success

Komatsu will present the highlights of new and innovative concepts at the steinexpo. In addition to moderated demonstrations of the use of large machinery and equipment at the demonstration area,...


Hyundai launches its new crawler excavator: the HX300AL

Hyundai Construction Equipment Europe (HCEE) continues the roll-out of the A-series with the HX300AL, a 30-tonne Stage V-compliant crawler excavator. This new machine is the ideal workmate for...

Issue 2010-03

Doosan Infracore Europe S.A.

The new DX700LC, which is the largest in the range of Doosan crawler excavators, is designed and built to meet the needs of heavy duty mining and quarrying applications as well as major infrastructure...

Issue 2013-03

Kobelco Construction Machinery Co., Ltd.

For the first time in 10?years, Kobelco is returning on its own to markets in Europe, North America, South America, the Middle East and Russia. At Bauma, Kobelco will jointly exhibit a 26-tonne short...