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Mining operations depend on dozers that move more material efficiently while helping control fuel consumption and operating costs. The new Cat D11 XE electric-drive dozer is designed to help customers do exactly that, delivering up to 25% lower fuel consumption per unit of material moved and moving 5% to 10% more material per hour than the next-generation Cat D11.
Upgrades throughout the machine’s powertrain and major systems help drive improvements in the dozer’s productivity, efficiency and durability. The Cat C32B engine operates at a lower high-idle speed, helping the D11 XE deliver up to 20% longer life between rebuilds than the D11. Planned component repair intervals for the engine, final drives and hydraulic systems increase from 15,000 to 18,000 hours, aligning with the electric drive’s 18,000-hour rebuild centerline. The result is the most efficient and productive D11 model to date, consuming up to 20% less fuel per hour and producing 20% to 25% fewer greenhouse gas emissions, according to Caterpillar.
“The D11 XE is designed to help customers get more from every hour of operation. By combining the proven capability of the D11 platform with the benefits of electric drive, it delivers meaningful gains in productivity, efficiency and lifecycle value,” said Luke Fischer, product application specialist for Caterpillar. “It also reflects how far dozer performance has advanced, offering up to 25% greater efficiency than today’s D11 and up to 40% greater efficiency than the first D11N introduced in 1986.”
With no gears to shift, the D11 XE electric drive system simplifies operation. A dedicated drive motor at each track provides power-turn capability for strong maneuverability and pryout force. By powering both tracks throughout the turn, the system enables smoother, sharper maneuvering and helps operators push more material through the turn.
The suspended undercarriage absorbs impact and reduces shock load transfer to the undercarriage by up to 50%, helping create a smoother, more comfortable ride. Accessible, low-effort electronic steering, ripper and dozer controls support precise maneuvering, while the primary multifunction touchscreen provides operators with a clear view of machine performance and convenient access to operating settings. Together, these features help operators work more consistently and productively throughout the shift.
The Cat D11 XE comes with the following integrated solutions: AutoCarry, 3D Grade Control, Automated Blade Assist and automatic ripper control. The dozer can also be equipped with Cat MineStar solutions.
The post Caterpillar rolls out first electric-drive large dozer first appeared on North American Mining Magazine.