The newest slant-nosed, intelligent HST dozer in the industry introduces advanced features to enhance its capabilities. Here are some key highlights:
- IMC 2.0 built-in features for increased productivity.
- Lower ground pressure compared to the D71EX model.
- Fast travel and steering response facilitated by the HST (Hydrostatic Transmission) drive.
This intelligent dozer is designed to operate automatically 100% of the time, featuring patent-pending proactive dozing control for improved efficiency and performance.
Product Features and benefits:
Continuous Learning Capability
The dozer incorporates proactive dozing control, allowing even less experienced operators to effortlessly cut or strip from existing terrain. By measuring the tracked terrain and utilizing this data for planning subsequent passes, productivity can see a remarkable improvement of up to 60% compared to the previous generation.
Automatic Fill Spreading
The lift layer control feature enables operators to automatically spread fill material with a simple button press. By measuring the tracked terrain, the dozer gathers data to plan the next pass. This not only facilitates efficient production but also ensures consistent layers for compaction quality, potentially doubling production rates.
Effortless Material Leveling
Tilt steering control is designed to automatically tilt the blade, ensuring straight travel even during rough dozing. This innovative feature significantly reduces operator steering input, minimizing fatigue and enhancing operational efficiency by up to 80%.
Swift Surface Creation
Operators can swiftly create a temporary design surface with the QuickSurfCtrl feature. Coupled with other IMC 2.0 functions, the crew can initiate stripping or spreading using automated input while awaiting the finish grade model.
Closing the Operator Skill Gap
The dozer’s machine logic allows it to continuously learn the terrain, making calculated decisions for the next pass. Intelligent Machine Control plays a pivotal role in narrowing the skill gap between new and experienced operators, contributing to enhanced overall efficiency.
Revolutionary Machine Control
In specific scenarios like auto-stripping, rough dozing, spreading, and advanced finish grading, operators have the option to leverage nearly 100% machine control auto usage. Remarkably, this can be achieved without the necessity of a 3D model, providing advanced control capabilities.
Learning Capabilities from Operator Input
The dozer is designed as a machine that learns from the operator. Automatic functions enable the dozer to adapt to the operator’s blade input, resulting in increased adaptability, simplified operation, and reduced reliance on continuous operator input.
Exceptional Blade Response
For unparalleled grading performance, the IMC-equipped dozer looks ahead at grade transitions, altering the blade angle accordingly. This outstanding blade response ensures precise and efficient grading operations.
Product Specifications for D71PXi-24:
Engine:
- Model: Komatsu SAA6D114E-6
- Type: 4-cycle, water-cooled, direct injection
- Aspiration: Komatsu Variable Geometry Turbocharged, air-to-air aftercooled, cooled EGR
- Number of cylinders: 6
- Bore x stroke: 4.5 x 5.7 in
- Piston displacement: 540 in³
- Governor: All-speed and mid-range, electronic
- Horsepower:
- SAE J1995 – Gross: 240 HP
- ISO 9249 / SAE J1349 – Net: 237 HP
- Hydraulic fan at maximum speed: 213 HP
- Rated rpm: 2,100 rpm
- Fan drive type: Hydraulic
- EPA Tier 4 Final emissions certified
Hydrostatic Transmission:
- Dual-path, hydrostatic transmission
- Extensive speed changes up to 6.8 mph
- Variable capacity travel motors
- Travel control lock lever and neutral switch
- Quick shift mode speeds (adjustable in the monitor):
- 1st: 0-2.4 mph (Forward), 0-2.8 mph (Reverse)
- 2nd: 0-4 mph (Forward), 0-4.7 mph (Reverse)
- 2.5th: 0-5.2 mph (Forward), 0-5.8 mph (Reverse)
- 3rd: 0-6.8 mph (Forward and Reverse)
- Travel speed (variable mode): 0.5-6.8 mph
Final Drive:
- In-shoe mounted axial piston type travel motors
- Integrated two-stage planetary gear reduction
- Compact in-shoe mount to reduce the risk of damage by debris
- Bolt-on sprocket for easy displacement
Steering System:
- PCCS joystick control for all directional movements
- Fully electronic control for smooth operation
- PCCS utilizes shift buttons to increase and decrease speed
- Minimum turning radius:
- D71PX-24/D71PXi-24: 10 ft. 2 in
- D71PX-24 Wide/D71PXi-24 Wide: 10 ft. 10 in
Undercarriage:
- Suspension: Oscillating-type with equalizer bar and pivot shafts
- Track roller frame: Monocoque, large section, durable construction
- Rollers and idlers: Lubricated track rollers
- Lubricated tracks: Parallel Link Undercarriage System (PLUS) with lubricated rotating bushings
- D71PX-24/D71PXi-24:
- Number of track rollers (each side): 8
- Type of shoes (standard): Single grouser
- Number of shoes (each side): 45
- Grouser height: 2.6 in
- Shoe width (standard): 30 in
- Ground contact area: 53.6 ft²
- Ground pressure (with dozer, ROPS cab) (ISO 16754): 5.8 psi
- Track gauge: 7 ft. 3 in
- Length of track on ground: 10 ft. 8.9 in
- D71PX-24 Wide/D71PXi-24 Wide: Same as D71PX-24/D71PXi-24 but with a wider shoe width of 36 in
Service Refill Capacities:
- Coolant: 14.4 US gal
- Fuel tank: 116.0 US gal
- Engine oil: 8.1 US gal
- Hydraulic tank: 40.7 US gal
- Final drive (each side): 2.6 US gal
- DEF tank: 5.3 US gal
Operating Weight (Approximate):
- Tractor weight (Including ROPS cab, U frame for PAT dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment):
- D71PXi-24: 48,061 lbs.
- D71PXi-24 Wide: 49,604 lbs.
- Operating weight (Including PAT dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank):
- D71PX-24: 50,927 lbs.
- D71PX-24 Wide: 52,690 lbs.
- D71PXi-24: 51,147 lbs.
- D71PXi-24 Wide: 52,911 lbs.
Hydraulic System:
- Closed-Center Load Sensing System (CLSS)
- Hydraulic control unit: All spool control valves externally mounted remote to the hydraulic tank
- Piston-type hydraulic pump with a capacity (discharge flow) of 62.3 US gpm at rated engine rpm
- Relief valve setting: 4,177 psi
- Hydraulic cylinders: Double-acting, piston type
- Blade lift (2): 4.7 in
- Blade tilt (1): 5.1 in
- Blade angle (2): 4.3 in
- Hydraulic oil capacity (refill): Power angle tilt dozer 40.7 US gal
- Control valves: 3-spool control valve for Power Angle Tilt dozer with various positions for blade lift, blade tilt, and blade angle
- Additional control valve required for ripper with various positions for ripper lift.
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/dozers/mid-size-dozers/d71pxi-24
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