Cat Global Mining recently introduction the new Cat 798 AC and the 796 AC, expanding its mining truck line. The new electric-drive 798 AC features a 372-metric-ton (mt) payload. The new electric-drive 796 AC delivers 326-mt payload and will replace the Cat 795 AC in regions where engine emissions are highly regulated. Both trucks will be available in second quarter of 2019.

The design of the trucks focuses on delivering class-leading payload, high reliability and simple serviceability. These attributes are built on the frame and chassis design proven in 18 million hours of legacy truck operation and now used by the Cat 794 AC, the company said.

The AC powertrain of each of the two new trucks draws from the Cat 795 AC and Cat 794 AC, which have been operating successfully for about 5 million hours.

The Cat C175-16 diesel engine powers both of the new trucks. With more than 21 million hours of operation in mobile equipment and power generation, the engine can be configured to meet U.S. Environmental Protection Agency (EPA) Tier 4 emissions regulations and offers a choice of 2,610 kW (3,500 hp) or 2,312 kW (3,100 hp).

The Cat HE Body is sized and configured to meet the specific needs of the mine, dictated by fragmentation, abrasion, cohesion and the loading tool. The curved floor, front, and canopy strengthen the entire body, which is integral to the truck. The body is sized to meet the payload requirements without compromising vehicle balance, braking or control.

Open-engine access and service platforms allows for easy removal and installation of components. The engine, traction alternator, motors, inverter, grid and final drives can be removed independently. Traction alternator and optional inverter platforms allow for easier inspections, diagnostics and component swaps. The result is less service time and greater uptime, according to the company.