Komtasu announced today updates to its D61-23 crawler dozer line. To allow customers to best match their applications, Komatsu is making two new models available, the D61EX-23 is a longer track-on-ground standard model and the D61PX-23 is the low ground pressure model.
Each D61-23 dozer is Tier 4 Interim-certified and is configurable in packages with horsepower between 130 and 160 and operating weight ranges from 39,099 to 41,138 pounds depending on the configuration. The EX and PX models pack more power, pushing with a net 168 HP at 2200 rpm.
Komatsu’s Tier 4 Interim engine platform uses an advanced electronic control system to manage airflow rate, fuel injection, combustion parameters, and after treatment functions to optimize performance, reduce emissions, and provide advanced diagnostic capability.
The new dozers also feature Komatsu’s engine control technology which allow operators to match machine performance to the application with two selectable working modes. E Mode is intended for all general dozing, leveling and spreading applications providing adequate speed and power while saving fuel. P Mode is intended for slot dozing, ripping, uphill dozing or other applications that require maximum power where engine power has priority over fuel consumption.
That engine control along with hydrostatic transmission pump control technology improve operational efficiency and reduce fuel consumption to levels lower than a conventional HST control system can obtain, Komatsu says. This feature reduces fuel consumption by up to 10% in P mode in demanding working conditions and up to 20% in E mode under lighter load conditions as compared to the prior model.
Komatsu says the D61-23 is designed for a wide variety of applications, including land clearing, grading, forestry and site work. A full guarding package, hydraulic winch and other attachments are available for easy customization to meet specific application requirements.
The D61-23 is equipped with Komatsu’s KOMTRAX telematics system which wirelessly sends machine operating information to a secure website for later analysis. Trackable data inclues hour meter, location, cautions, load ratio, fuel consumption and maintenance alerts.
Komatsu’s new power angle tilt (PAT) blade features a box structure for added durability and the new standard adjustable blade pitch allows the operator to adjust the aggressiveness of the cutting edge for varying applications.