vs.

      Caterpillar D7R XR serie II vs. Komatsu D31PX-22

      18 reasons to buy Caterpillar D7R XR serie II:

      Standard blade

      Volume 6.9 m3 and 1.6 m3 77 % more or 5.3 m3
      Cut depth 527 mm and 390 mm 26 % more or 137 mm

      Sizes

      Clearance 416 mm and 315 mm 24 % more or 101 mm

      Operation

      Fuel Capacity 479 l. and 195 l. 59 % more or 284 l.
      Cooling system fluid volume 77.4 l. and 18 l. 77 % more or 59.4 l.
      Engine oil volume 31 l. and 11 l. 65 % more or 20 l.
      Final drive fluid volume 13 l. and 3.5 l. 73 % more or 9.5 l.
      Generator current strength 95 amperes and 35 amperes 63 % more or 60 amperes

      Motor

      Displacement 10.3 l. and 3.3 l. 68 % more or 7.0 l.
      Cylinders number 6 and 4 33 % more or 2
      Full power 192 kW and 59.7 kW 69 % more or 132.3 kW
      Effective power 179 kW and 58.2 kW 67 % more or 120.8 kW

      Hydraulic system

      Pump bandwidth 180 l/min and 99.2 l/min 45 % more or 80.8 l/min

      Gear box

      Maximum forward speed 10.5 km/h and 8.5 km/h 19 % more or 2.0 km/h
      Maximum reverse gear 13.6 km/h and 8.5 km/h 37 % more or 5.1 km/h

      Carrier

      Contact with ground area 3.7 m2 and 2.6 m2 30 % more or 1.1 m2
      Track shoes number per side 41 and 40 2 % more or 1
      Rolling bearings number on either side 8 and 6 25 % more or 2

      2 reasons to buy Komatsu D31PX-22:

      Motor

      Power measured at 2200 rev / min and 2100 rev / min 5 % more or 100 rev

      Carrier

      Specific ground pressure 32.3 kPa and 67.6 kPa 52 % less or 35.3 kPa

      Neutral reasons:

      Standard blade

      Width 3693 mm and 3250 mm
      Height 1524 mm and 750 mm

      Sizes

      Caterpillar track length on ground level 3050 mm and 2185 mm
      Length with blade 6030 mm and 4155 mm
      Width between caterpillar tracks 2590 mm and 2250 mm
      Height to cab upper part 3372 mm and 2760 mm

      Operation

      Working weight 25880 kg and 8540 kg
      Operating voltage 24 V and 24 V

      Motor

      Manufacturer Caterpillar and Komatsu
      Model 3176C and SAA4D95LE-5

      Gear box

      Transmission type Hydro-Static Transmission and dual path hydrostatic transmission
      Forward gears number 3 and 3
      Reverse gears number 3 and 3

      Carrier

      Standard shoe size 610 mm and 600 mm
      Track width 1980 mm and 1650 mm

      Images

      Sizes

      1. Length with blade 6030 mm 1. Length with blade 4155 mm
      2. Width between caterpillar tracks 2590 mm 2. Width between caterpillar tracks 2250 mm
      3. Height to cab upper part 3372 mm 3. Height to cab upper part 2760 mm
      4. Caterpillar track length on ground level 3050 mm 4. Caterpillar track length on ground level 2185 mm
      5. Clearance 416 mm 5. Clearance 315 mm

      Carrier

      7. Track width 1980 mm 7. Track width 1650 mm
      8. Standard shoe size 610 mm 8. Standard shoe size 600 mm