Featuring a 197kW Komatsu SAA6D125E-7 variable geometry turbo charged (KVGT) and after cooled Tier 4 Final certified engine, the company stated that this new dozer is designed to deliver a high-performance, more environmentally-friendly engine that burns up to 5% less fuel and costs less to operate.
A standard EX track model and a low ground pressure PX track model are available to offer customers flotation and weight distribution options that best match their needs.
Chuck Murawski, product manager at Komatsu America, said: “For anyone looking for a large construction or small mining size dozer, the D85-18 hits the sweet spot. Whether you’re dozing, levelling or spreading, it has the speed and power to get the job done and it saves you fuel in the bargain.”
The crawler dozers are equipped with the latest KOMTRAX technology. Data such as fuel levels, diesel exhaust fluid (DEF) levels, operating hours, location, cautions and maintenance alerts are relayed to the web application for analysis. A new Operator Identification System reports key operating information for multiple operators and a new Auto Idle Shutdown function helps reduce idle time as well as operating costs.
The new crawler dozer features a Komatsu EPA Tier 4 Final emission certified engine, with selective catalyst reduction (SCR) that further reduces NOx emissions using DEF. The engine uses an advanced electronic control system to manage the air-flow rate, fuel injection, combustion parameters, and after-treatment functions to optimise performance, reduce emissions, and provide advanced diagnostic capability, resulting in lower fuel consumption with no loss of performance. Komatsu continues to use a Komatsu variable geometry turbocharger (KVGT) and exhaust gas recirculation (EGR) valve with hydraulic actuator 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 after-treatment system. This control system is also integrated into the machine’s on-board diagnostics systems and KOMTRAX, Komatsu’s standard telematics system.
The D85EX-18 is also equipped with a 7.2m3 SIGMADOZER blade which gives the machine a high blade capacity. The SIGMADOZER with standard power pitch can dramatically improve dozing performance and increase productivity by up to 15% over a conventional Semi-U blade. The blade features a frontal design concept adopted for digging and rolling material at the centre of the blade. The blade shape increases soil-holding capacity, and digging resistance is reduced for a smoother flow of material so larger amounts of soil can be dozed with less power.
The D85-18 has a new automatic transmission that can reduce fuel consumption by up to 5% and offer greater power train efficiency. 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, levelling 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.
