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R 924: a 24-tonne class crawler excavator


The new Liebherr R 924 crawler excavator with a service weight of 24 tonnes has a 115 kW (157 hp) Liebherr diesel engine equipped with a particulate filter and active regeneration enabling it to satisfy the Stage IIIB / Tier 4 interim exhaust emission limits.

The new Liebherr R 924 crawler excavator is making its first public appearance at the 2012 ‘Intermat’. With a service weight of 24 tonnes, the new model supersedes the R 916. Its Liebherr diesel engine is rated at 115 kW (157 hp) and, like all the engines fitted to the latest model series, complies with the Tier 4 interim / stage IIIB exhaust emission limits, thanks to efficient exhaust gas purification by means of a particulate filter with active regeneration.

The optimised high-strength steel structure of the new excavator is the key to top performance and even longer operating life. The X-shaped design improves stress distribution and engenders a longer service life. The self-cleaning action is reduced and the maintenance is easier due to : the alignment between the upper plate of the central part and the shell of the track carriers, the steps mounted on the vertical side of the track carrier and the wide openings under the support rollers.

The uppercarriage layout is entirely new, and makes maintenance work safer and more efficient. Maintenance points have been brought together and can be reached without effort from ground level through easily operated ‘gullwing’ doors. This simplifies day-to-day maintenance and minimises the need to climb up on to the superstructure. Visual checks on fluid levels and other items have been optimised; the available information is clearly laid out and easy to understand.

Like all models in the latest crawler excavator model series, the R 924 features integrated Liebherr excavator system technology, for exceptionally smooth and rapid operation. This technology is based on Positive Control hydraulics with a Liebherr electronic control system, and makes optimal use of the available energy for both individual and in unison movements.

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