vs.

      Komatsu D21A-5 vs. Komatsu D40A-5

      1 reasons to buy Komatsu D21A-5:

      Motor

      Power measured at 2450 rev / min and 2350 rev / min 4 % more or 100 rev

      8 reasons to buy Komatsu D40A-5:

      Sizes

      Clearance 360 mm and 310 mm 14 % more or 50 mm

      Motor

      Displacement 6.5 l. and 2.9 l. 55 % more or 3.6 l.
      Cylinders number 6 and 4 33 % more or 2
      Full power 70.8 kW and 29.1 kW 59 % more or 41.7 kW

      Gear box

      Forward gears number 5 and 2 60 % more or 3
      Reverse gears number 4 and 2 50 % more or 2

      Carrier

      Track shoes number per side 39 and 37 5 % more or 2
      Rolling bearings number on either side 6 and 5 17 % more or 1

      Neutral reasons:

      Standard blade

      Width 2170 mm and 2720 mm
      Height 590 mm and 910 mm

      Sizes

      Length without blade 2440 mm and 3410 mm
      Length with blade 3385 mm and 4475 mm
      Width between caterpillar tracks 1610 mm and 2160 mm
      Height to cab upper part 2160 mm and 2795 mm
      Caterpillar track length on ground level 1685 mm and 2235 mm

      Operation

      Working weight 3620 kg and 10600 kg

      Motor

      Manufacturer Komatsu and Komatsu
      Model 4D92-2P and 6D105-1

      Gear box

      Transmission type HS and DD

      Carrier

      Standard shoe size 300 mm and 400 mm
      Caterpillar track pitch 135 mm and 175 mm
      Track width 1310 mm and 1760 mm

      Images

      Sizes

      3. Height to cab upper part 2160 mm 3. Height to cab upper part 2795 mm
      4. Caterpillar track length on ground level 1685 mm 4. Caterpillar track length on ground level 2235 mm
      5. Clearance 310 mm 5. Clearance 360 mm
      6. Length without blade 2440 mm 6. Length without blade 3410 mm
      1. Length with blade 3385 mm 1. Length with blade 4475 mm
      2. Width between caterpillar tracks 1610 mm 2. Width between caterpillar tracks 2160 mm

      Carrier

      7. Track width 1310 mm 7. Track width 1760 mm
      8. Standard shoe size 300 mm 8. Standard shoe size 400 mm