Komatsu America Corp.’s D65EX/PX/WX-18 crawler dozers are powered by a more powerful net 217 hp Komatsu SAA6D114E-6 engine that is EPA Tier IV Final emissions certified.
A standard (EX), low ground pressure (PX) and a wide (WX) track model are available to offer customers flotation and weight distribution options that best match their applications. Operating weight ranges from 45,525 to 49,690 lbs. (20,649 to 25,539 kg) depending on the version.
The D65-18 combines the SIGMADOZER blade with an automatic transmission with torque converter lock-up to achieve increased productivity and fuel economy. A Komatsu 6-way power angle tilt (PAT) blade also is available for all models.
The D65-18 is equipped with the latest KOMTRAX remote monitoring technology with data access via the web or via KOMTRAX Mobile on your smart phone. In addition to providing data such as fuel levels, operating hours, location, cautions and maintenance alerts, KOMTRAX has been further enhanced to monitor AdBlue/DEF levels, ambient air temperatures and pressures. A new operator identification system reports key operating information for multiple operators. A new auto idle shutdown function helps improve operating costs by reducing unnecessary idle time.
Special features of these new crawler dozers include:
Komatsu EPA Tier IV Final Emission Certified Engine — Productive, Dependable, Efficient
Komatsu’s EPA Tier IV Final engines are built on the strength of its Tier IV Interim foundation. By integrating selective catalyst reduction (SCR), the Tier IV Final engine further reduces NOx emissions using AdBlue/DEF. The Komatsu Tier IV Final engine uses an advanced electronic control system to manage the air-flow rate, fuel injection, combustion parameters, and after treatment functions to optimize performance, reduce emissions, and provide advanced diagnostic capability. The result is lower fuel consumption with no loss of performance. Komatsu continues to use a Komatsu variable geometry turbocharger (KVGT) and an exhaust gas recirculation (EGR) valve for more precise temperature and air management control as well as longer component life.
To ensure product reliability and durability in demanding conditions, Komatsu developed the entire system, including the control software which is critical to the effective operation of the aftertreatment system. This control system also is integrated into the machine’s on-board diagnostics systems and KOMTRAX, Komatsu’s standard telematics system.
Diverse Choice of Blades for Versatility and Performance
The D65EX and WX are equipped with SIGMADOZER, providing the machine with a large blade capacity of 7.34 and 7.72 cu. yds. (5.6 and 5.9 cu m) respectively. Based on a completely new excavation theory, SIGMADOZER dramatically improves dozing performance and increases productivity by up to 15 percent over conventional semi-u blades. The Komatsu designed blade increases soil-holding capacity while simultaneously reducing sideway spillage because it digs and rolls material up at the center of the blade. SIGMADOZER also reduces digging resistance producing a smoother flow of material enabling the dozing of larger amounts of soil with less power, according to the manufacturer.
A durable pat blade also is available for each model. The manually adjustable blade pitch further expands the versatility and productivity in many applications.
Automatic Shift Transmission Improves Fuel Economy
The D65-18 has a new automatic transmission with lock up torque converter that reduces fuel consumption and offers greater power train efficiency. The lockup mechanics of the torque converter automatically transfer engine power directly to the transmission, reducing fuel consumption by up to 10 percent.
Two gearshift modes — automatic or manual — can be easily selected to fit the appropriate application: automatic for all general dozing and manual for dozing and ripping rough ground.
E and P modes help match machine performance to the application. E mode is chosen for all general dozing, leveling and spreading applications providing adequate speed and power while saving up to 10 percent fuel usage. P mode is chosen for heavier applications where engine power has priority over fuel consumption.
Ergonomic Joystick Controls for Ease of Operation and Comfort
Komatsu’s palm command control system (PCCS) gives operators maximum control, offering a relaxed posture and superb fine control to minimize operator fatigue. The pilot controlled hydraulic blade and ripper control joystick offer excellent blade and ripper fine control.
Powerful turns under various work conditions are achieved with the hydrostatic steering system (HSS) to transmit power to both tracks without interruption. Counter-rotation is available in neutral for minimum turning radius, providing excellent maneuverability
Cab Design Creates Optimal Operator Environment
The crawler dozer’s comfortable cab allows the operator to concentrate on the work at hand for increased productivity. The large cab is integrated with ROPS and includes a standard air suspension seat with heat.
The cab provides a noticeably quiet work environment with viscous cab mounts. A large 7 in. high-resolution color LCD monitor in the cab displays all machine information. A comfortable standard air suspension seat with heat further enhances operator comfort. A rear-view monitoring system is standard and can be set to synchronize with reverse operation.
Convenient Maintenance and Reduced Operation Costs
Recognizing that maintenance is critical for successful equipment uptime, Komatsu has designed the D65-18 with easy routine maintenance in mind. Daily engine checks are grouped at the left-hand side of the engine compartment. A manually reversing fan allows for quick cleaning of the radiator. The D65-18 also comes standard with the parallel link undercarriage system (PLUS). This rotary bushing system doubles the undercarriage life compared to prior conventional systems, significantly lowering owning and operating costs.
All Komatsu Tier IV machines come with Komatsu Care. Komatsu Care provides complimentary scheduled maintenance for the first three years or 2,000 hours (whichever occurs first.) It also includes a 50-point inspection at each service and two complimentary KDPF exchanges in the first five years.
For more information, visit www.komatsuamerica.com.
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