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Contractors World  -
2014 Vol 5 No 5
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What's New In Plant & Equipment

Komatsu Goes Crazy With New Equipment Launches - continued


New Technology in Latest Dozers

Marubeni Komatsu UK provided the venue for the Global launch of two new dozers from Komatsu, to further strengthen their position in the market as a world leader in dozing technology.

With this introduction the company has brought closer together merging technologies to further enhance dozing performance and minimise operator fatigue.

Most dozers today working on major sites use levelling and grading technologies. Typically this is either by laser or, as it becomes more accurate, GPS using attachments to the dozer that are exposed to damage.

With the D61EXi/PXi-23, Komatsu build such intelligence into the machine. In other words, a unique fully automatic blade control dozer capable of both finish grading in automatic mode, and also rough dozing. The result is a significant improvement in productivity.

The D61i-EXi has an operating weight range from 177,40 kg to 18,660 kg depending on the configuration with a Komatsu SAA6D107E-2 engine Tier IV interim engine delivering net 125 kW / 168 HP at 2200 rpm.

The new dozer also features Komatsu’s proprietary KOMTRAX (Komatsu Machine Tracking System) and TOPCON’s construction management system.

The D61i-EXi has an operating weight range from 177,40 kg to 18,660 kg       In the near future, this integrated system will enable high-efficiency, unified management of construction work through access to realtime machine data, via its web service, to track work progress including the amount of soil dozed at jobsites.

Fully Automatic Blade Control While high-precision finish grading can be achieved by crawler dozers equipped with a conventional control system, the D61i-EXi can also perform rough dozing in automatic mode, thanks to a fully automatic blade load control.

Komatsu claim that when compared to conventional add-on machine control systems, an increase of up to 13% in efficiency can be achieved when using Komatsu’s technological innovation in rough dozing.

Komatsu has moved away from add-on components for the machine control system that were typically mounted on the blade. With the new model, it is a fully-integrated system within, and protected by, the cab structure.

Travel speed is up to 9.00 km/h in both forward and reverse gears. Dozer blade ranges from 3,250 mm x 1,195 mm with 3.4 m³ PAT blade on the EX model up to 3,860 mm x 1,155 mm with 3.8 m³ PAT blade PXI)

A Second Dozer Launch

Komatsu has also introduced the D37EXi/PXi-23 dozer to the European market which is configured to the same degree with Komatsu’s latest intelligent Machine Control technology, enabling both finish grading and rough dozing in full automatic blade control mode.

These dozers meets EU Stage IIIB regulations using smart engine technology, with operator-specific features bundled into a compact 89 horsepower package.

Operating weights range from 8,640 kg to 8,940 kg depending on the configuration and model. At 2200 rpm, the D37EXi/PXi-23 pushes with a net 66,1 kW (89 HP).
Both dozers come equipped with the Komatsu Diesel Oxidation Catalyst (KDOC), which has an integrated design that does not interfere with daily operation.

Komatsu Dozers

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