When first Liebherr presented the R 9150 mining excavator at a European trade fair it was Steinexpo 2014. The company says “the machine is equipped with robust components, specifically designed for mining. These components, developed and produced by Liebherr, are the basis of the machine’s high reliability. The backhoe and shovel are designed as standard for a nominal volume of 8.3 m3. The optimised Liebherr bucket and the specific wear protection package ease penetration into the material. This means excavator operators can loosen solid material in the quarry and fill the bucket more easily. Remarkable performance and quick cycle times make the R 9150 an extremely efficient excavator. Its high productivity makes it a serious competitor, even for machines in the 200-t class.”
In quarries worked by Schiewe GmbH in Ostwestfalen-Lippe, Germany, Liebherr mining excavators are extracting limestone at a rate of between 600,000 and 700,000 t annually. Schiewe examines machines for their efficiency and sustainability prior to purchase. Together with the Liebherr dealership, Grotemeier in Bünde, they selected the R 984 mining excavator with 7.5 m3 capacity bottom-dump bucket as the most effective equipment for direct excavation. Since this excavator was able to impress with its high level of performance, Schiewe invested in an additional R 9150 with an 8.0 m3 bottom-dump bucket.
“Our latest acquisitions, the Liebherr R 9150, as well as the R 984, have proved to be equally well-suited to the extraction process in the quarry. Both excavators have the right operating weight and more than sufficient hydraulic power for the direct excavation method. A feature of both machines is also their tremendous efficiency,” commented director Rolf Schiewe, emphasising his satisfaction with the Liebherr machines. He values the low fuel consumption, but not only for reasons of efficiency. “Environmental protection is important for us. We make a real effort to ensure we control the impact of our business activities on the environment. Fuel savings are an important step in this direction.”
