Komatsu Introduces D71EX/PX-24 Dozer with Hydrostatic Transmission

The new dozer includes Komatsu's intelligent Machine Control and technology, and makes it easy to move from production to finishing with a single machine.

Komatsu D71 P Xi 24 V1
Komatsu America Corp.

Komatsu announces the release of its D71EX/PX-24 dozer featuring a hydrostatic transmission (HST). The HST ensures the dozer is effective at grading, pushing, side-cutting and working on soft ground, providing operators with the flexibility to move from production to finishing with a single machine.

The new machine is Komatsu's largest HST dozer, weighing 49,824-50,927 lbs. (22,600-23,100 kg). It features a power output of 237 hp (176.7 kW). This combined power and weight helps operators maintain ground speed while operating under heavy loads in H mode.

Komatsu says visibility of cutting edges is improved due to the distinctive slant nose design of the dozer. This also helps to provide good balance and maneuverability.

The company says the new D71EX/PX-24 is an all-around crawler dozer as it is equally adept at precise, high-speed grading and rough dozing, and is designed to provide outstanding wearability and functionality with its high-capacity, wear-resistant dozer blade.

A Parallel Link Undercarriage System (PLUS) features rotating bushings to help minimize maintenance downtime and cost of ownership, further aiding customer operations.

Komatsu D71 P Xi 24 V2Komatsu America Corp.

D71-24 and intelligent Machine Control, iMC 2.0

Inclusion of Komatsu’s latest intelligent Machine Control (iMC) 2.0 helps to improve productivity and efficiency for customers, as well. Capabilities include:

  • Lift layer control optimizes earthwork productivity with the press of a button. It maintains compaction quality by automatically controlling lifts to the desired height. Excess fill is eliminated as automatic blade control follows the finish surface once lifts have reached finished grade.
  • Tilt steering control automatically tilts the blade to maintain straight travel during rough dozing. Reduces operator steering input by up to 80%.
  • Operators can create a temporary design surface with the press of a button with quick surface creation. Combined with other iMC 2.0 functions, crews can begin stripping or spreading using automated input while waiting for the finish grade model.
  • With proactive dozing control, even less experienced operators can automatically cut/strip from existing terrain. The dozer measures the terrain it tracks over and uses that data to plan the next pass, improving productivity by up to 60% versus previous generation machines.

Komatsu D71 P Xi 24 V3Komatsu America Corp.