vs.

      Komatsu D21A-5 vs. Komatsu D21A-3

      3 reasons to buy Komatsu D21A-5:

      Standard blade

      Cut depth 350 mm and 320 mm 9 % more or 30 mm

      Motor

      Full power 29.1 kW and 27.6 kW 5 % more or 1.5 kW
      Displacement 2.9 l. and 2.6 l. 10 % more or 0.3 l.

      6 reasons to buy Komatsu D21A-3:

      Operation

      Cooling system fluid volume 14 l. and 13 l. 7 % more or 1 l.

      Gear box

      Maximum forward speed 6.9 km/h and 4.4 km/h 36 % more or 2.5 km/h
      Maximum reverse gear 6.4 km/h and 5.4 km/h 16 % more or 1.0 km/h
      Reverse gears number 3 and 2 33 % more or 1
      Forward gears number 3 and 2 33 % more or 1

      Carrier

      Specific ground pressure 28.4 kPa and 29.4 kPa 3 % less or 1.0 kPa

      Neutral reasons:

      Standard blade

      Width 2170 mm and 2300 mm
      Height 590 mm and 565 mm

      Sizes

      Caterpillar track length on ground level 1685 mm and 1675 mm
      Clearance 310 mm and 310 mm
      Length without blade 2440 mm and 2465 mm
      Length with blade 3385 mm and 3450 mm
      Width between caterpillar tracks 1610 mm and 1540 mm
      Height to cab upper part 2160 mm and 2085 mm

      Operation

      Working weight 3620 kg and 3430 kg
      Fuel Capacity 60 l. and 60 l.

      Motor

      Manufacturer Komatsu and Komatsu
      Model 4D92-2P and 4D92-1
      Power measured at 2450 rev / min and 2450 rev / min
      Cylinders number 4 and 4

      Gear box

      Transmission type HS and HS

      Carrier

      Standard shoe size 300 mm and 300 mm
      Track shoes number per side 37 and 37
      Rolling bearings number on either side 5 and 5
      Caterpillar track pitch 135 mm and 135 mm
      Track width 1310 mm and 1190 mm

      Images

      Sizes

      1. Length with blade 3385 mm 1. Length with blade 3450 mm
      2. Width between caterpillar tracks 1610 mm 2. Width between caterpillar tracks 1540 mm
      3. Height to cab upper part 2160 mm 3. Height to cab upper part 2085 mm
      4. Caterpillar track length on ground level 1685 mm 4. Caterpillar track length on ground level 1675 mm
      5. Clearance 310 mm 5. Clearance 310 mm
      6. Length without blade 2440 mm 6. Length without blade 2465 mm

      Carrier

      7. Track width 1310 mm 7. Track width 1190 mm
      8. Standard shoe size 300 mm 8. Standard shoe size 300 mm