Capital Equipment News January 2021

RIGID HAULERS

Optimised fuel mapping of the engine and adaptive economy mode determine the most efficient operating point to improve truck fuel economy. Improved performance and fuel efficiency for lower cost per tonne Offering what is said to be the highest in-class payload of 98,2 tonnes, the 2021 Cat 777E truck features improvements in power, torque and transmission control to deliver greater productivity. Updates also include configurable Eco Mode operation to reduce fuel consumption and drive down cost-per-tonne of material moved. By Munesu Shoko .

T he newly updated Cat efficiency for lower cost per tonne. The updated Cat C32 engine delivers increased horsepower and a 7% improvement in torque to increase hauling performance. Optimised fuel mapping of the engine and adaptive economy mode determine the most efficient operating point to improve truck fuel economy. Additionally, operators can select a variable engine derate from 0,5% to 15% in Eco Mode operation to further reduce fuel consumption – and the 777E rigid dump truck has a special design focus on delivering improved performance and fuel

gear start when underfoot conditions and grade allow. The strategy enables the truck to reach optimum speed more quickly, lowers cycle times and minimises the number of transmission shifts. To save fuel, a new auto neutral idle feature shifts the transmission into a neutral-like condition when the truck is idling in drive. The transmission’s speed limit feature allows the machine to run at optimal gear for selected speed. When working in cold conditions, the new auto-stall feature assists in quickly bringing the transmission to operating temperature at start-up. The effect is less non-productive time and

new automatic engine idle shutdown feature reduces fuel use and wear on engine components.

Improved productivity Today’s 777E truck improves

productivity by up to 5%. The new Advanced Productivity Electronic Control Strategy (APECS) improves transmission and engine coordination to better utilise available engine power. The result is as much as 7% more torque delivered to the drive wheels for improved hauling performance. The new control system also provides smooth shifting for greater operator comfort. The 777E now offers a second

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