The German family-run company Pongratz Schotterwerk, in Ensdorf-Wolfsbach/Bavaria, has been using a Liebherr R 980 SME crawler excavator in a limestone quarry since May.
The 100tonne excavator - which replaces an R 954 S-HD - is working at the quarry face loading dumper trucks. Developed and manufactured in Colmar, eastern France, the Liebherr crawler excavator has an operating weight of around 100tonnes. The 420kW diesel engine complies with the exhaust emissions standards of Stage IIIB/tier 4i. After b
