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Dozers
D71-24
Mid-size dozers
- Engine power (HP) 240
- Engine power (kW) 179
- Blade capacity (m^3) 5.02
- Blade capacity (yd^3) 6.6
- Operating weight (kg) 23900
- Operating weight (lbs) 52690
Now with a new technology Komatsu engine, our intelligent Machine Control (iMC) 2.0 D71EXi-24 bulldozer – available in both standard and low-ground-pressure configurations – incorporates a unique fully integrated blade control system, allowing it to carry out both bulk and final trim dozing in automatic from start to finish with final grade performance. This significantly increases productivity and efficiency while reducing the cost of each metre of material moved. And it comes standard with our Komtrax remote monitoring and location system, backed by our NZ-wide service and support network.
Resources
Features and benefits
Hydrostatic transmission (HST) control system
The D71EX/PX-24 is equipped with Komatsu-designed HST provides smooth powerful turns. Fully electronic control provides full automatic shifting and enables smooth control. The travel speed can be selected smoothly with the UP/ DOWN switch, and the engine power is maximised in all speed ranges. In addition, a powerful and smooth turn is achieved by controlling the outer track faster and the inner crawler track slower.
Unrivaled blade visibility
The D71EXi/PXi-24 incorporates Komatsu’s super-slant nose design. Komatsu’s innovative design provides excellent blade visibility for improved machine control and increased efficiency and productivity.
Next generation intelligence
The D71EXi/PXi-24 features improved machine efficiency for work ranging from heavy dozing to finish grading with intelligent Machine Control 2.0 technologies. Lift layer control realises consistent lift layers with automatic control, while proactive dozing control cut and carry work is smooth as if performed by experienced operator.
Specifications
- Full specs
- Suspension: Oscillation-type with an equaliser bar and pivot shafts
- Track roller frame: Monocoque, large section, durable construction
- Type of shoes (standard): Single grouser
- Number of track rollers (each side): 8
- Number of shoes (each side): 45
- Number of carrier rollers (each side): 2
- Lubricated tracks: Lubricated tracks with PLUS
- Shoe width (standard)(mm): 610 (D71EXi-24), 760 (D71PXi-24), 915 (D71PXi-24 Wide)
- Shoe width (standard)(in): 24.02 (D71EXi-24), 29.92 (D71PXi-24), 36.02 (D71PXi-24 Wide)
- Relief valve setting (kg/cm^2): 294
- Maximum pump flow (gpm): 62.1
- Maximum pump flow (ltr/min): 235
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Number of cylinders
- Blade tilt /1 (in): 1 x 5.12
- Blade tilt /1 (mm): 1 x 130
- Blade lift / 2 (in): 2 x 4.72
- Blade lift / 2 (mm): 2 x 120
- Blade angle / 2 (in): 4.33
- Blade angle / 2 (mm): 110
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- Ripper lift: Raise, hold and lower
Positions
- Engine Model: Komatsu SAA6D114E-6
- Aspiration: Turbocharged, air-to-air aftercooled
- Piston displacement (L): 8.85
- Piston displacement (in^3): 540.05
- Engine certification (standard): EPA Tier 4 Final Engine
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Horsepower
- SAEJ1995 - Gross (kW): 179
- SAEJ1995 - Gross (HP): 240
- ISO 9249 / SAE J1349 - Net (HP): 237
- Rated RPM: 2100
- Fan drive type: Hydraulic
- Fuel tank (L): 439
- Coolant (US gal): 14.39
- Coolant (L): 54.5
- Engine oil (US gal): 8.06
- Engine oil (L): 30.5
- Hydraulic tank (L): 154
- Hydraulic tank (US gal): 40.68
Tier 4 engine KDPF regeneration
As the technology of diesel engines has progressed from Tier 3 to Tier 4 Final, design aspects of the engines have been fine-tuned to comply with regulations to cover regulated diesel engine exhaust pollutants.
The result is that these new diesel engines are cleaner than ever before, and in many cases more fuel efficient too. Along with this comes the need to properly manage and maintain these new generation of machines to make sure that operating costs are minimised.
Intelligent performance
The Komatsu D71EXi-24 Intelligent Machine Control 2.0 dozer offers an outstanding improvement in productivity with its innovative and fully automatic blade control function that performs both rough dozing and finish grading in automatic mode.
