New Komatsu dozer pushes superior working visibility

Komatsu has released the D39EX-22 dozer, a 9t, 71kW hydrostatic drive machine featuring a “super-tapered” bonnet design to give superior all-round visibility.

An ERG class 04 (68-98kW) machine, its cab-forward design, tapered bonnet and integrated ROPS/FOPS means that the operator has an uninterrupted view to the blade corners and front of the tracks. Its cab-forward design has been achieved by moving the radiator to the rear – which also allows for easier access to the radiator, as well as engine and transmission components.

Power comes from Komatsu's Tier 3-compliant ecot3 SAA4D107E-1 diesel driving a Komatsu-designed and manufactured hydrostatic transmission. The dozer is also available as a low ground pressure (swamp) machine - the D39PX-22 - which has an operating weight of 9.5t.

According to Kevin Edwards, Komatsu Australia's business manager - government, the D39-22 is the first in a new line of small hydrostatic drive dozers – all featuring outstanding visibility due to the cab-forward and super-tapered bonnet design.

“Along with others in forthcoming, it incorporates a number of features that make it a highly productive, reliable machine,” he said. “At 71kW, it has the highest power of any direct competitors, while a high-capacity PAT (power/angle/tilt) dozer blade makes it a very versatile machine. The PAT blade on these smaller dozers makes them an ideal final trim machine, as well as for small-scale bulk earthworks.”

“Its hydrostatic transmission is controlled by Komatsu's palm command control system, the same system on our large mining dozers. This gives operators unprecedented control in a very ergonomically friendly package, so they are less fatigued at the end of a shift,” Edwards said.

“The pressurised air conditioned cab is the same size internally as our larger construction and mining dozers too, and features the same cab damper mounting system as the larger dozers, again contributing to operator comfort and productivity.”

Standard on the D39EX/PX-22 is the Komtrax system, which allows all key machine data – hours, fuel consumption, alerts and warnings, etc – to be monitored remotely from anywhere in the world.

“Combine this with GPS-based machine control and it is a perfect machine for a full range of earthworks.”

More information: Komatsu Australia, 1300 KOMATSU (1300 566 287