Truck-Mounted Concrete Pump With a Completely New Drive Unit

Liebherr will introduce the completely redeveloped 42 M5 XXT truck-mounted concrete pump for the medium range class at Bauma this year. One highlight is the unique Liebherr Powerbloc drive unit: Through the complete integration of all hydraulic switching and measuring elements, the 42 M5 XXT convinces with unique robustness, increased performance and especially quiet operation.

The new 42 M5 XXT complements the Liebherr product portfolio of truck-mounted concrete pumps for the medium range class with an allrounder with a modern design. Equipped with the popular 5-piece multi-folding mast, it is compactly built for the street and is proving to have a long reach at the construction site. The low unfolding height and outstanding slip characteristics of the 42 M5 XXT, paired with its great mobility, facilitates working in buildings.

Thanks to intensive detail work, the total weight of the device falls below 32 t without giving up the quiet and stable machine behavior typical for Liebherr. Many technical parts come from Liebherr’s own component production, such as the new Powerbloc drive unit making its world debut at Bauma 2019.

All hydraulic switching and measuring elements have been completely integrated. This eliminates numerous hydraulic hoses as well as many other parts. The drive unit is therefore one of a kind in the concrete pump world. Special features of the new system are its robustness, high performance and quiet running. Furthermore, Liebherr has newly designed a highly efficient, semi-closed oil circuit, which powerfully and reliably supplies all drives with hydraulic energy. As a result, the oil volume could also be significantly reduced. This new Liebherr system combines the advantages of the proven open and closed circuits currently on the market, without their respective disadvantages.

Source: Liebherr

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