Caterpillar 6090 FS

The heavyweight of the hydraulic shovels here, Caterpillar's 6090 FS is listed at about 1,000 metric tons in face shovel form, some 190 more than the R 9800. Its heaped bucket holds 52 cubic meters and carries about 93.6 metric tons a pass, driven by two Cummins QSK60 diesels with 4,500 hp between them. The machine has a long family tree: it started out as the O&K RH400 in 1997, became the Terex and then the Bucyrus RH400 as the mining business changed hands, and took the Cat name after Caterpillar bought Bucyrus.