Komatsu has recently introduced its new line of D65EX/PX/WX-18 crawler dozers which are powered by a more powerful net 217 HP Komatsu SAA6D114E-6 engine that is EPA Tier 4 Final emissions certified. Komatsu’s Tier 4 Final engines are built on a solid foundation that started in 1996 with the introduction of Komatsu’s Tier 1 engines. The resulting benefit is a Tier 4 Final engine that is productive, dependable and efficient. This new crawler dozer leverages Komatsu’s leadership in technology and innovation by delivering an environmentally-friendly engine that provides high levels of performance while reducing fuel consumption and operating costs.
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 lbs. to 49,690 lbs. depending on the version.
The D65-18 combines the revolutionary SIGMADOZER® blade with a highly efficient automatic transmission with torque converter lock-up to achieve exceptional productivity and fuel economy. A durable Komatsu 6-way Power Angle Tilt (PAT) blade is also available for all models, creating a versatile and agile tractor for various dozing operations.
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 4 Final Emission Certified Engine – Productive, Dependable, Efficient
Komatsu’s EPA Tier 4 Final engines are built on the strength of its proven Tier 4 Interim foundation. By integrating Selective Catalyst Reduction (SCR), the Tier 4 Final engine further reduces NOx emissions using AdBlue® / DEF. The Komatsu Tier 4 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 is also 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 yd³ and 7.72 yd³ respectively. Based on a completely new excavation theory, SIGMADOZER® dramatically improves dozing performance and increases productivity by up to 15% 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.
A durable PAT blade is also available for each model. The manually adjustable blade pitch further expands the versatility and productivity in many applications.
Automatic shift transmission significantly improves fuel economy
The D65-18 has a new automatic transmission with lock up torque converter that greatly 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%.
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% fuel usage. P Mode is chosen for heavier applications where engine power has priority over fuel consumption.
