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Dozers

D475A-8

Large dozers

  • Engine power (HP) 890
  • Engine power (kW) 664
  • Blade capacity (m^3) 45.0
  • Blade capacity (yd^3) 58.9
  • Operating weight (kg) 115300
  • Operating weight (lbs) 254193

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When you need a versatile mining dozer that can go from ripping solid rock to cleaning up around the dragline, the Komatsu D475A-8 is a solid choice. Using an automatic lockup torque converter, the D475A-8 combined power and speed is designed for high production with minimal fuel consumption.

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    Features and benefits

    Low undercarriage design

    Low undercarriage design

    Equipped with a low drive undercarriage designed to help reduce wear and tear on your machine while still delivering comfort and stability. Minimal moving parts to help maintain high levels of traction and production when dozing and ripping.

    Structural improvements

    Structural improvements

    The D475A-8 features a more reliable mainframe with twice the design life over previous models, designed to reduce maintenance costs and machine downtime.

    Track shoe slip control

    Track shoe slip control

    Track shoe slip control automatically controls engine speed and minimises slip during ripping operation, so your operator doesn’t have to.


    Specifications

    Metric Imperial (US)
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    • Suspension: Oscillating equaliser bar and pivot shaft
    • Track roller frame: Cylindrical, high-tensile-strength steel construction
    • Rollers and idlers: Lubricated track rollers
    • Extreme service track shoes: Lubricated tracks. Unique seals prevent entry of foreign abrasives into pin to bushing clearances to provide extended service life. Track tension is easily adjusted with grease gun.
    • Number of track rollers (each side): 8
    • Number of shoes (each side): 41
    • Number of carrier rollers (each side): 2
    • Komatsu Bogie (K-Bogie) undercarriage: Lubricated track rollers are resiliently mounted to the track frame with a bogie suspension system whose oscillating motion is cushioned by rubber pads.
    • Grouser height (in): 4.09
    • Grouser height (mm): 104
    • Shoe width (standard)(in): 27.99
    • Shoe width (standard)(mm): 711
    • Ground contact area (cm^2): 64239
    • Ground contact area (ft2): 69.16
    • Ground pressure (tractor)(kPa): 115
    • Ground pressure (tractor)(kg/cm^2): 1.17

    • Hydraulic system features: Closed-center load sensing system (CLSS) designed for precise and responsive control.
    • Relief valve setting (kg/cm^2): 280
    • Relief valve setting (MPa): 27.5
    • Blade lift cylinder bore (mm): 180

      • Positions

        • Blade lift: Raise, hold, lower, and float
        • Blade tilt: Right, hold, and left

    • Hydraulic oil capacity (refill)

      • Semi-U dozer or U dozer (US gal): 60.22
      • Semi-U dozer or U dozer (L): 228

    • Engine model: Komatsu SAA12V140E-7
    • Aspiration: Turbocharged, air-to-air charge air cooler, cooled EGR

    • Horsepower

      • SAEJ1995 - Gross (HP): 899
      • SAEJ1995 - Gross (kW): 671
      • ISO 9249 / SAE J1349 - Net (HP): 890
      • Rated RPM: 2000

    • Fuel tank (L): 2305
    • Coolant (US gal): 84
    • Coolant (L): 318
    • Torque converter, transmission, bevel gear, and steering system (L): 252
    • Torque converter, transmission, bevel gear, and steering system (US gal): 66.5

    • Ground pressure (kPa): 17237
    • Ground pressure (kg/cm^2): 115300