vs.

      Komatsu HD405-6 vs. Caterpillar 789C

      6 reasons to buy Komatsu HD405-6:

      Weight

      Loaded rear weight distribution 68 % and 67 % 1 % more or 1 %
      Unloaded front weight distribution 48 % and 47 % 2 % more or 1 %

      Motor

      Power measured at 2000 rev / min and 1750 rev / min 12 % more or 250 rev

      Gear box

      Forward gears number 7 and 6 14 % more or 1
      Maximum speed 70 km/h and 52.6 km/h 25 % more or 17.4 km/h

      Dump

      Lifting time 10 sec and 18.9 sec 47 % less or 8.9 sec

      14 reasons to buy Caterpillar 789C:

      Weight

      Unloaded rear weight distribution 53 % and 52 % 2 % more or 1 %
      Loaded front weight distribution 33 % and 32 % 3 % more or 1 %

      Sizes

      Unloading ground clearance 1330 mm and 630 mm 53 % more or 700 mm

      Operation

      Cooling system fluid volume 663 l. and 89 l. 87 % more or 574 l.
      Engine oil volume 76 l. and 52 l. 32 % more or 24 l.
      Differential/final drive fluid volume 583 l. and 58 l. 90 % more or 525 l.
      Hydraulic system fluid volume 531 l. and 129 l. 76 % more or 402 l.
      Fuel Capacity 3222 l. and 500 l. 84 % more or 2722 l.

      Motor

      Full power 1417 kW and 378.8 kW 73 % more or 1038.2 kW
      Effective power 1320 kW and 363.9 kW 72 % more or 956.1 kW
      Displacement 69 l. and 15.2 l. 78 % more or 53.8 l.
      Cylinders number 16 and 6 62 % more or 10

      Dump

      Brimmed lifting capacity 92 m3 and 20 m3 78 % more or 72 m3
      Lifting capacity with top 105 m3 and 27.3 m3 74 % more or 77.7 m3

      Neutral reasons:

      Weight

      Weight without load 34080 kg and 135670 kg
      Laden weight 74155 kg and 317515 kg

      Sizes

      Headroom 4220 mm and 6182 mm
      Wheelbase 3750 mm and 5700 mm
      Unloading height 7885 mm and 11950 mm
      Dimensional length 8700 mm and 12177 mm
      Overall width 4525 mm and 7674 mm

      Operation

      Tyre size 18.00R33 and 37.00-R57(E4)

      Motor

      Manufacturer Komatsu and Caterpillar
      Model SAA6D140E-3 and 3516B EUI
      Aspiration turbocharging and turbocharging

      Gear box

      Reverse gears number 1 and 1
      Transmission type automatic planetary gear and 6-planetary gear shift with direct injection

      Dump

      Nominal payload 40823.3 kg and 176901 kg
      Discharge angle 48 degrees and 49.5 degrees

      Images

      Sizes

      1. Dimensional length 8700 mm 1. Dimensional length 12177 mm
      2. Overall width 4525 mm 2. Overall width 7674 mm
      3. Headroom 4220 mm 3. Headroom 6182 mm
      4. Wheelbase 3750 mm 4. Wheelbase 5700 mm
      6. Unloading height 7885 mm 6. Unloading height 11950 mm
      7. Unloading ground clearance 630 mm 7. Unloading ground clearance 1330 mm

      Dump

      8. Discharge angle 48 degrees 8. Discharge angle 49.5 degrees