The new Caterpillar D11 dozer is engineered with a redesigned main frame that delivers lower total cost of ownership over the life of the machine and engineered to be rebuilt multiple times.
The D11 dozer is also equipped with new load-sensing hydraulics and new drive train components that deliver up to 8 per cent greater fuel efficiency.
The variable hydraulic pumps adjust output to meet demand, which saves energy, reduces heat generation and extends component life. As well, the new stator clutch torque divider provides improved drive train efficiency. When combined with the new, high-horsepower reverse function, the machine delivers 4 to 8 per cent more productivity while burning less fuel.
The larger equalizer bar features an improved bearing design to increase reliability. The new D11 dozer also improves on the time-tested elevated sprocket undercarriage with a more robust track roller frame to extend component service life. Replaceable bearings on the ripper and blade pin boreholes and new push arm trunnion bearing inserts offer quick replacement and extend component life.
The Caterpillar C32 engine delivers 850 hp forward and 955 hp reverse for increased performance. A new single-plane cooling system design better dissipates heat to maintain consistent operating temperatures, even in extreme heat. Furthermore, it provides easier core cleanout. Improved reversing fan function delivers improved reverse airflow for radiator cleanout.
A 30 per cent larger engine oil sump capacity extends preventive maintenance intervals to 500 hours in challenging environments, giving customers more uptime. The ground-level electrical centre provides access to the lockout control, engine shutdown switch, and switches for access ladder raise/lower and remote-control mode options. Technicians may also fill the auto lube system and change the coolant as well as hydraulic, engine and powertrain oil from the ground.
Standard features built into the new D11 dozer offer improved access to the operator compartment. The cab door can now be mounted for either left- or right-side opening. Delayed egress lighting allows the operator to exit an illuminated dozer, while access lighting is controlled from the cab or ground-level electrical centre.
The new operator station features high-def touchscreen displays with scalable electronic architecture. The dynamic fluid monitoring system displays fluid levels and warns the operator of low-fluid conditions. New cab anchor points for tie-off advance safety during service and maintenance.
Caterpillar offers a range of standard and optional tech for the Cat D11 dozer. Standard Automated Blade Assist makes use of preset blade pitch position to increase efficiency while reducing operator workload. Fuel efficiency and productivity are optimized through Enhanced Auto Shift, which automatically selects the optimal gear and engine speed based on powertrain load and desired ground speed.
Available AutoCarry automatically changes blade position to keep track slip at a minimum to optimize productivity when pushing a load. The optional Auto Ripper Control reduces operator fatigue and decreases machine wear by monitoring and automatically adjusting engine speed and ripper depth to minimize track slip. As well, Cat Product Link enables remote reporting of critical operating data like machine location, operation and condition, and allows data tracking from anywhere through VisionLink.
Available Cat MineStar technologies for the D11 include Terrain for grading, while Command for dozing offers multiple levels of remote control as well as semi-autonomous operation, which enables a single remotely located operator to manage several dozers.
The new D11 dozer will be commercially available in second quarter 2019.