Liebherr R 9150 hydraulic mining excavator is for pairing with 50-ton dump trucks. The R 9150, which replaces the Liebherr R 984 C, has an operating weight of 280,000 pounds in its backhoe ...

Whatever term you might use to describe them—“compact,” “close-radius,” or “reduced-tail-swing”—hydraulic excavators designed to limit the distance the upper structure extends over the tracks at 90 ...