vs.

      Caterpillar D4K XL vs. Komatsu D31P-20

      9 reasons to buy Caterpillar D4K XL:

      Operation

      Fuel Capacity 195 l. and 115 l. 41 % more or 80 l.
      Cooling system fluid volume 22.4 l. and 22 l. 2 % more or 0.4 l.
      Final drive fluid volume 10 l. and 9.5 l. 5 % more or 0.5 l.

      Motor

      Effective power 62.6 kW and 52.2 kW 17 % more or 10.4 kW
      Displacement 4.4 l. and 3.9 l. 11 % more or 0.5 l.

      Gear box

      Maximum forward speed 9 km/h and 6.5 km/h 28 % more or 2.5 km/h
      Maximum reverse gear 10 km/h and 7.1 km/h 29 % more or 2.9 km/h

      Carrier

      Rolling bearings number on either side 7 and 6 14 % more or 1
      Track shoes number per side 43 and 41 5 % more or 2

      6 reasons to buy Komatsu D31P-20:

      Operation

      Engine oil volume 14 l. and 11 l. 21 % more or 3 l.

      Motor

      Power measured at 2350 rev / min and 1900 rev / min 19 % more or 450 rev

      Gear box

      Forward gears number 3 and 2 33 % more or 1
      Reverse gears number 3 and 2 33 % more or 1

      Carrier

      Specific ground pressure 22.6 kPa and 38.6 kPa 41 % less or 16.0 kPa
      Contact with ground area 2.6 m2 and 2.1 m2 19 % more or 0.5 m2

      Neutral reasons:

      Operation

      Working weight 8147 kg and 6195 kg

      Motor

      Model C4.4 ACERT and S4D102E
      Manufacturer Caterpillar and Komatsu

      Hydraulic system

      Overflow valve pressure 20600 kPa and 17200 kPa

      Gear box

      Transmission type Hydro-Static Transmission and Hydro-Gear switching

      Carrier

      Track width 1550 mm and 1450 mm
      Standard shoe size 460 mm and 600 mm

      Images

      Carrier

      7. Track width 1550 mm 7. Track width 1450 mm
      8. Standard shoe size 460 mm 8. Standard shoe size 600 mm