vs.

      Komatsu HD405-7 vs. Komatsu HD320-3

      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

      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.

      Neutral reasons:

      Weight

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

      Sizes

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

      Motor

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

      Gear box

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

      Dump

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

      Images

      Sizes

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

      Dump

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