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Liebherr reveals new machine for slurry wall construction

Construction machinery for slurry wall construction, the Liebherr LBX 600

Liebherr has released the LBX 600, a new carrier machine for slurry wall construction for jobsites in urban areas.

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According to the manufacturer, the new carrier machine is responding to “special challenges” faced on urban jobsites, hence the compact design of the machine. The LBX 600 possesses a modular system with three different booms to give customers more flexibility to meet site requirements: the standard 17.8m, the 11m low head, and the 5.8m ultra low head, with the latter two proving particularly effective when working under bridges. Additionally, the LBX 600 can be transported in one piece thanks to the machine’s telescopic undercarriage that reduces the track width to three metres.

The carrier machine also possesses the capacity to use hydraulic grabs, mechanical grabs, and chisels, thanks to thee two free fall-winches with a line pull of 300kN each. Liebherr has also designed its hydraulic slurry grabs, HSG 5-18 C and HSG 5-18 L, with efficiency and versatility in mind to install slurry walls with thicknesses between 500 and 1800mm.

The term “C” (compact) stands for the compact standard design for the Low Head Version of the LBX 600, while the base body of the “L” (large) version is 2.5m longer. The resulting total height of the grab at 9.5m and the high weight with low centre of gravity provide for optimal vertical positioning and are especially advantageous when installing larger dimensioned slurry walls.

When working in difficult ground conditions, the execution of the work can be improved through increasing the dead weight of the grab with an additional weight of 4.4 tonnes or 6.5 tonnes. Bites with lengths of 2500-3400mm and maximum depths of 80m can be excavated with the grab.

The slurry wall grab is fitted with a hydraulic rotating device that allows the grab to be aligned in all directions and provides for quick and operator-friendly 180-degree rotation after each grab cycle. The high cylinder force of 1527 kN attains a high level of performance even under extreme conditions. The fill level indicator on the grab ensures high productivity throughout the entire application, with the maximum permissible grab weight maxing out at 30 tonnes.

Furthermore, the LBX 600 has a battery powered ‘unplugged’ alternative that, according to Liebherr, displays “identical” performance data to its diesel counterpart. Producing zero emissions, no exhaust fumes, and having minimal noise, the machine further lends itself to urban, noise-sensitive job sites.


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