Cat launches more efficient D11 dozer

Cat’s new D11 dozer has been equipped with a number of new features including new load-sensing hydraulics, high horsepower reverse function and a suite of in-cab technologies to allow operators to move more material at a lower cost per tonne.

According to Caterpillar, the new load-sensing hydraulics and drive train components deliver up to eight per cent in fuel efficiency gains.

The variable hydraulic pumps adjust output to meet demand, which saves energy, reduces heat generation and extends component life. The new stator clutch torque divider provides improved drive train efficiency.

When combined with the new, high-horsepower reverse function, the machine can deliver between four to eight per cent greater productivity, Caterpillar said.

The structure and frame of the S11 has also been improved to provide greater durability and longer life.

For example, the equaliser bar has a new bearing design for increased reliability, while the elevated sprocket undercarriage features a more robust track roller frame for a longer component service life.

Replaceable bearings on the ripper and blade pin boreholes and new push arm trunnion bearing inserts offer fast replacement and extend component life.

The Cat D11 is available with a choice of emissions solutions to meet regional requirements. It is powered by a Cat C32 engine that delivers power ratings of 634kW (850hp) forward and 712kW (955hp) reverse for increased performance.

A new single-plane cooling system design better dissipates heat to maintain consistent operating temperatures, even in extreme heat, and provides easier core cleanout.

An improved reversing fan function delivers greater reverse airflow for radiator cleanout.

Caterpillar has also increased the engine oil sump capacity by 30 per cent which extends preventive maintenance intervals to 500 hours in challenging environments, hence giving customers more uptime.

The ground-level electrical center provides convenient access to the lockout control, engine shutdown switch, and switches for access ladder raise/lower and remote-control mode options.

Service technicians can also fill the Auto Lube system and change the coolant and hydraulic, engine and powertrain oil from the ground.

Standard features built into the new D11 offer improved access to the operator compartment. The cab door can now be mounted for either left- or right-side opening.

Inside the cab, a new operator station features high-definition touchscreen displays with scalable electronic architecture. The dynamic fluid monitoring system displays fluid levels and warns the operator of low-fluid conditions.

Caterpillar offers a range of standard and optional technologies on the new Cat D11 Dozer for better work efficiency and accuracy at a lower cost.

The Standard Automated Blade Assist feature makes use of preset blade pitch position to increase efficiency while reducing operator workload.

Fuel efficiency and productivity are optimised 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 optimise 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 minimise track slip.

Cat Product Link is also available with the Cat D11 dozer which offers remote reporting of critical operating data such as machine location, operation and condition, and allows data tracking from anywhere through VisionLink.

Available Cat MineStar technologies for the D11 include Terrain for grading, which guides the operator in grading to plan and boosts productivity by reducing rework.

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 Cat D11 Dozer will be commercially available in second quarter 2019.