Caterpillar launch new 70-tonne dozer
New D10T2 dozer offers increased fuel efficiency, reliability, durability, serviceability and safety
THE new Cat D10T2 dozer builds on the proven D10T version with refinements to its power train, automated controls and structures. The result, say Caterpillar, is high productivity with superior fuel efficiency, reliable operation with long-lived structures, and enhanced access for service technicians and operators.
The D10T2 uses the latest load-sensing hydraulics technology combined with Cat advanced engine controls to maximize the amount of material moved for every drop of fuel burned, while improved filtration protects the fuel system, hydraulic system, and power train oil system to help ensure high reliability and minimal machine downtime.
Refined large structures, such as redesigned track roller frames, deliver longer service before rebuilds, while improved access and egress features enhance the safety and productivity of technicians and operators. Moreover, optional powered access systems and platforms allow the D10T2 to be configured for specific sites/operators.
Caterpillar offer the D10T2 with two variations of the Cat C27 ACERT engine with. One is US EPA Tier 4 Final certified, and the other is capable of achieving emission levels equivalent to US EPA Tier 2 standards. Both engine configurations produce net power of 600hp (447kW) in forward gears and 722hp (538kW) in reverse gears, which means the D10T2 has about 20% more power in reverse compared with its predecessor.
The D10T2 also employs field-proven load-sensing implement hydraulics to boost fuel efficiency and machine performance. The system automatically and continuously adjusts implement hydraulic power and delivers the right levels of flow and pressure for the task in hand. The net result is more power available for the tracks to move the machine.
Enhanced AutoShift (EAS) is a new standard feature on the D10T2. This improves fuel efficiency and productivity by automatically selecting the optimal gear and engine speed combination based on power-train load and desired ground speed. This feature, which functions similarly to an automatic transmission, combined with the increased power in reverse enhances productivity when backing up slopes.
A number of optional electronic systems are available to assist the D10T2 operator. Proven on the D10T, the Autocarry system provides automatic blade control during the carry segment of the dozing cycle by measuring ground speed and track slip with a robust global navigation satellite system (GNSS) receiver. Autocarry changes blade position automatically to keep track slip at the optimum level for best performance.
In addition, the D10T2 offers a new feature, Adaptive Load Select, which enhances Autocarry by automatically adjusting blade load based on operating conditions, such as underfoot conditions and track wear. Similarly, the new Automatic Ripper Control monitors speed with GNSS and automatically adjusts engine speed and ripper depth to minimize track slip.
Caterpillar’s MineStar System can take blade control even further. Terrain for Grading enables an electronic site plan to be sent to the machine from the office in real time, showing the operator where to cut and fill. Newly available is Terrain for Grading with Blade Control. This system automatically guides the blade to the desired design contours and is integrated with Autocarry to sense and automatically control the load of the blade for improved performance and efficient blade loading in high-production dozing applications.
