CATERPILLAR has expanded its mining truck offering with the introduction of two new ultra-class trucks – the 798 AC and the 796 AC.
The new electric-drive 798 AC features a 372-tonne payload, while the 796 AC delivers a 326-tonne payload. Cat said the new trucks have been designed to focus on delivering “class-leading payload, high reliability and simple serviceability”.
Both new trucks are powered by the Cat C175016 diesel engine, which can be configured to meet US EPA Tier 4 emissions regulations and offers a choice of 2610 kW (3,500 hp) or 2312 kW (3,100 hp) to meet the mine’s requirements.
Both the 796 AC and 798 AC have been designed to minimise empty machine weight, as configured in the field, according to the manufacturer. This is said to enable the 798 AC to carry its “class-leading” payload of 372 tonnes and haul more material each cycle on 59/80R63 tires.
The new models feature four-corner, oil-cooled disc brakes as well as dynamic retarding, which aim to offer stable handling and confident stopping. “Superior” retarding capability, blended breaking and the Cat Traction Control System are described as offering a boost in productivity and enhanced safety.
The Cat High Efficiency (HE) body is configured to meet the specific needs of the mine. It features a curved floor, front and canopy to strengthen the entire body.
The models’ open engine access and service platforms seek to ease maintenance tasks, while the modular design allows for the 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, diagnostic and component swaps, according to Cat. This is said to result in less service time and greater uptime.
Both trucks will be available in Q2 2019.
