Komatsu America launches new crawler dozer

Komatsu America’s new D85-18 dozer has a 264hp, Komatsu SAA6D125E-7, variable geometry, turbo charged and after cooled, Tier 4 Final certified engine.

This new dozer leverages Komatsu’s nearly 20 years of experience and innovative leadership in emissions technology to deliver a high-performance, more environmentally-friendly engine that burns up to 5% less fuel and costs less to operate, the company says.

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.

“For anyone looking for a large construction or small mining size dozer, the D85-18 hits the sweet spot,” said Chuck Murawski, Komatsu America product manager.

“Whether you’re dozing, leveling or spreading, it has the speed and power to get the job done and it saves you fuel in the bargain,” Murawski said.

The crawler dozers are equipped with the latest Komtrax technology. Data such as fuel levels, 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 Komatsu EPA 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 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 has a 9.4 yd Sigmadozer blade which gives the machine a high blade capacity, improves dozing performance and increases 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 center of the blade. The blade shape increases soil-holding capacity. 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 reduces fuel consumption by up to 5% and offers 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, 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.

Ease of operation
Komatsu’s Palm Command Control System gives operators maximum control, offering a relaxed posture and superb fine control to minimize operator fatigue.

Powerful turns under various work conditions are achieved with the Hydrostatic Steering System to transmit power to both tracks without interruption. Counter-rotation is available in neutral for minimum turning radius, providing excellent maneuverability.

The new crawler dozer’s more comfortable working environment allows the operator to concentrate on the work at hand for increased productivity. A high capacity air suspension seat with heat is standard. The large cab is integrated with the roll-over protection for excellent side visibility.

The dozer’s cab mounts reduce shocks and vibration, even in adverse conditions, creating an interior cab noise level that’s noticeably quieter.

A new high-resolution large color 7″ LCD monitor with pull-down menus enables quick machine adjustments and at-a-glance service diagnostics. A new rear view monitoring system is standard and can be set to synchronize with reverse operation. Also, rear hydraulics are standard on both the EX ad PX versions.

Komatsu has designed the D85-18 with easy, routine maintenance in mind. Daily engine checks are grouped at the left hand side of the engine compartment. A manually-reversing hydraulically-driven cooling fan allows for quick cleaning of the radiator.


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