vs.

      Komatsu HD320-3 vs. Komatsu HD405-7

      3 reasons to buy Komatsu HD320-3:

      Weight

      Unloaded rear weight distribution 52 % and 49.3 % 5 % more or 2.7 %
      Loaded rear weight distribution 68 % and 67.2 % 1 % more or 0.8 %

      Operation

      Fuel Capacity 500 l. and 484 l. 3 % more or 16 l.

      11 reasons to buy Komatsu HD405-7:

      Weight

      Unloaded front weight distribution 50.7 % and 48 % 5 % more or 2.7 %
      Loaded front weight distribution 32.8 % and 32 % 2 % more or 0.8 %

      Sizes

      Unloading ground clearance 480 mm and 440 mm 8 % more or 40 mm

      Operation

      Engine oil volume 50 l. and 25 l. 50 % more or 25 l.
      Differential/final drive fluid volume 75 l. and 71 l. 5 % more or 4 l.
      Hydraulic system fluid volume 129 l. and 110 l. 15 % more or 19 l.

      Motor

      Full power 386 kW and 302 kW 22 % more or 84 kW
      Displacement 15.2 l. and 14 l. 8 % more or 1.2 l.

      Gear box

      Forward gears number 7 and 6 14 % more or 1
      Maximum speed 70 km/h and 62 km/h 11 % more or 8 km/h

      Dump

      Lifting capacity with top 27.3 m3 and 24 m3 12 % more or 3.3 m3

      Neutral reasons:

      Weight

      Weight without load 25750 kg and 34400 kg
      Laden weight 57750 kg and 74480 kg

      Sizes

      Dimensional length 7650 mm and 8465 mm
      Overall width 3670 mm and 3657.6 mm
      Headroom 3850 mm and 4150 mm
      Wheelbase 3750 mm and 3750 mm
      Unloading height 7520 mm and 7925 mm

      Motor

      Model NTA855 and SAA6D140E-5
      Aspiration turbocharging and turbocharging
      Manufacturer Cummins and Komatsu

      Gear box

      Transmission type Komatsu Torqueflow Transmission (with the flow of torque) of planetary type and automatic planetary gear
      Reverse gears number 1 and 1

      Dump

      Discharge angle 61 degrees and 48 degrees
      Nominal payload 29029.9 kg and 40823.3 kg

      Images

      Sizes

      3. Headroom 3850 mm 3. Headroom 4150 mm
      4. Wheelbase 3750 mm 4. Wheelbase 3750 mm
      6. Unloading height 7520 mm 6. Unloading height 7925 mm
      7. Unloading ground clearance 440 mm 7. Unloading ground clearance 480 mm
      1. Dimensional length 7650 mm 1. Dimensional length 8465 mm
      2. Overall width 3670 mm 2. Overall width 3657.6 mm

      Dump

      8. Discharge angle 61 degrees 8. Discharge angle 48 degrees