The company’s midrange size hydraulic excavators (DX140LC to DX480LC models with more than 6 to less than 50 metric tons) come equipped with roll-over protective structure certified cabs. The pressurized cabs include a rear-view camera, monitor panel with automatic day/night mode, control stands integrated into the seat assembly, and optional heated air suspension seat. Doosan Construction Equipment. 800-743-4340.