When your projects demand sheer power and efficiency, turn to the D-Series Dozer, boasting 350+ horsepower and a set of robust features for tackling substantial tasks. With its massive blade capacity, automatic lockup torque converter, and a low drive K-bogie suspended undercarriage, this dozer ensures maximum traction and a smooth ride during dozing or ripping.
- High Horsepower: With over 350 horsepower, the dozer delivers the muscle needed for substantial earthmoving tasks, ensuring efficient and timely completion.
- Massive Blade Capacity: Equipped with semi-U and full U blades, the dozer excels in handling large volumes of material, making it a go-to choice for significant grading and excavation projects.
- Advanced Integration: Fully integrate 3D design data into the machine, enhancing precision and efficiency in grading and earthmoving operations.
- Operator Empowerment: Designed for ease of use, the dozer enables new operators to quickly get up to speed. Its efficiency allows for a seamless transition from mass excavation to finished grading, empowering operators to work effectively, pass after pass.
Product Features and benefits:
Closing the Operator Skill Gap:
- The dozer employs machine logic that continuously learns from the terrain, enabling it to make calculated decisions for subsequent passes.
- Intelligent Machine Control (IMC) is instrumental in reducing the skill gap between new and experienced operators.
Advanced Machine Control:
- In specific situations such as auto stripping, rough dozing, spreading, and advanced finish grading, operators have the option to utilize nearly 100% machine control auto functionality.
- Remarkably, automatic control can be applied without the need for a 3D model, enhancing versatility and ease of use.
Machine Learning from the Operator:
- Automatic functions empower the dozer to learn from the operator’s blade input.
- This results in increased adaptability, simplified operation, and reduced dependence on operator input for optimal performance.
Outstanding Blade Response for Finish Grading:
- Intelligent Machine Control (IMC) allows the dozer to anticipate grade transitions, proactively altering the blade angle.
- This feature ensures unparalleled grading performance, contributing to precision and efficiency in finish grading operations.
Product Specifications for D155AXi-8:
Engine:
- Model: Komatsu SAA6D140E-7**
- 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: 5.51 x 6.50 in
- Piston displacement: 930 in³
- Governor: Mid-range, electronic
- Horsepower:
- SAE J1995 – Gross: 360 HP
- ISO 9249 / SAE J1349* – Net: 354 HP
- *Net horsepower at the maximum speed of radiator cooling fan: 320 HP
- EPA Tier 4 Final emissions certified
TORQFLOW Transmission:
- Komatsu’s automatic TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase, torque converter with lockup clutch, and a planetary gear, multiple-disc clutch transmission which is hydraulically actuated and force-lubricated for optimum heat dissipation.
- Equipped with gearshift lock lever and neutral safety switch.
- Travel speed:
- 1st Gear forward: 2.4 mph
- 1st Gear reverse: 2.9 mph
- 2nd Gear forward: 3.5 mph
- 2nd Gear reverse: 4.2 mph
- 3rd L Gear forward: 4.7 mph
- 3rd L Gear reverse: 5.7 mph
- 3rd Gear forward: 7.2 mph
- 3rd Gear reverse: 8.7 mph
Steering System:
- Palm Command Control System (PCCS): Lever controls for all directional movements.
- Hydrostatic Steering System (HSS): Powered by steering planetary units and an independent hydraulic pump and motor.
- Counterrotation turns are also available.
- Wet, multiple-disc, pedal-controlled service brakes are spring-actuated and hydraulically released.
- Gear shift lock lever also applies parking brake.
- Minimum turning radius: 7 ft. 0 in
Undercarriage:
- Suspension: Oscillation-type with equalizer bar and forward-mounted pivot shafts
- Track roller frame: Monocoque, high-tensile-strength steel construction
- K-Bogie undercarriage: Lubricated track rollers are resiliently mounted on the track frame with a bogie suspension system whose oscillating motion is cushioned by rubber pads.
- Track shoes: Lubricated tracks. Unique dust seals prevent the entry of foreign abrasives into pin-to-bushing clearance for extended service.
- Number of shoes (each side): 42
- Grouser height: 3.1 in
- Shoe width (standard/maximum): 24 in / 28 in
- Ground contact area: 6,193 in²
- Ground pressure (tractor only): 11.6 psi
- Number of track rollers (each side): 7
- Number of carrier rollers (each side): 2
Service Refill Capacities:
- Fuel tank: 165 US gal
- Coolant: 27.5 US gal
- Engine oil: 9.8 US gal
- Damper: 0.4 US gal
- Transmission, bevel gear, and steering system: 23.8 US gal
- Final drive (each side): 8.2 US gal
- DEF tank: 10.3 US gal
- Hydraulic oil capacity: 25.1 US gal
Hydraulic System:
- Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
- Hydraulic control unit: All spool control valves externally mounted beside the hydraulic tank.
- Variable piston pump with capacity (discharge flow) of 85.9 US gal for steering and 47.6 US gal for implement at rated engine rpm.
- Relief valve setting:
- Implement: 3,980 psi
- Steering: 5,550 psi
- Control valves: Spool control valve for SIGMADOZER and Semi-U tilt dozer.
- Blade lift: Raise, hold, lower, and float
- Blade tilt: Right, hold, and left
- Additional control valve required for variable digging angle multi-shank ripper and giant ripper.
- Ripper lift: Raise, hold, and lower
- Ripper tilt: Increase, hold, and decrease
- Hydraulic cylinders: Double-acting, piston
- Number of cylinders / Bore:
- Blade Lift: 2 / 4.33 in
- Blade Tilt: 1 / 6.30 in
- Ripper Lift: 1 / 7.09 in
- Ripper Tilt: 1 / 7.87 in
- Number of cylinders / Bore:
- Hydraulic oil capacity (refill):
- SIGMADOZER: 25.1 US gal
- Semi-U tilt dozer: 25.1 US gal
- Ripper equipment (additional volume):
- Multi-shank ripper: 9.8 US gal
- Giant ripper: 9.8 US gal
Operating Weight:
- Tractor weight: 72,223 lbs. (Including rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment – including ROPS cab).
- Operating weight: 90,610 lbs. (Including strengthened SIGMADOZER, giant ripper, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank).
- Ground pressure: 14.6 psi
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/dozers/large-dozers/d155axi-8
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