2019 Komatsu Mid-Size Dozers D65PX-18

2019 Komatsu Mid-Size Dozers D65PX-18

The long track, low ground pressure D65PX-18 has hydrostatic steering (HSS) for smooth, powerful turns and offers better flotation in soft or wet conditions than the EX or WX models. The Tier 4 Final Komatsu engine powers an automatic transmission and lock-up torque converter system that maximizes gear-to-load efficiency for low fuel consumption. Left and right palm command control joysticks afford operators a relaxed posture, superb fine control and all the tools needed to maximize productivity. Other -18 model upgrades include more horsepower, better shift smoothness and engine response, and a standard, high-debris climate-control package.

Features may include:

New operator seat is equipped with lumbar support, tilting adjust function and electric heater. It is easy to adjust to the operator's shape and various working conditions and provides for comfortable operation. Also standard seat heat makes it possible to work comfortably in the winter.

Komatsu auto idle shutdown automatically shuts the engine down after idling for a set period of time to reduce unnecessary fuel consumption and exhaust emissions. The amount of time before the engine is shutdown can be easily programmed from 5 to 60 minutes.

Select for all general dozing. When a load is applied, the transmission automatically shifts down, and when the load is off, it automatically shifts up to a set maximum gear speed. This mode economizes both fuel and production further when the torque converter lockup mechanism is actuated according to load, providing a one-to-one drive.

A significant reduction in fuel consumption and greater power train efficiency are achieved by the automatic transmission and lockup torque converter. The automatic transmission selects the optimal gear range depending on the working conditions and load placed on the machine. This means the machine is always operating at maximum efficiency. The lockup mechanism of the torque converter is automatically actuated to transfer engine power directly to the transmission in travelling and usual dozing speed ranges. Locking up the torque converter results in 10% improved drive train efficiency.

Select automatic or manual gearshift modes to suit the work at hand, thanks to Tier 4 Final improvements made to the shifting logic. The D65-18 machine now offers faster, smoother shifting in automatic mode. The ability to disable the auto downshift feature from the monitor in the manual shift mode empowers operators who prefer blade load control and shifting from a true manual mode. Operators now have full downshift control from the manual mode.

The engine power is transmitted to both tracks without power interruption on the inside track for smooth, powerful turns. Counter-rotation while in neutral is available for minimum turning radius providing excellent maneuverability.

Based on a completely new digging theory, SIGMADOZER® dramatically improves dozing performance and increases productivity. A new frontal design concept adopted for digging and rolling up at the center of the blade increases soil holding capacity and simultaneously reduces sideway spillage. Reduced digging resistance produces smoother flow of material, enabling the dozing of larger quantities of material with less power. In addition, adoption of a new blade linkage system holds the blade closer to the tractor for improved visibility, enhanced digging force and reduced lateral sway of the blade. This is the next generation of dozer blades.