vs.

      Caterpillar D7R vs. Komatsu D87E-3

      7 reasons to buy Caterpillar D7R:

      Standard blade

      Cut depth 527 mm and 439 mm 17 % more or 88 mm

      Operation

      Cooling system fluid volume 75 l. and 58.7 l. 22 % more or 16.3 l.
      Power unit fluid volume 182 l. and 131 l. 28 % more or 51 l.
      Generator current strength 70 amperes and 50 amperes 29 % more or 20 amperes

      Hydraulic system

      Pump bandwidth 177 l/min and 145 l/min 18 % more or 32 l/min

      Gear box

      Maximum forward speed 10.9 km/h and 10.3 km/h 6 % more or 0.6 km/h
      Maximum reverse gear 13.8 km/h and 12.1 km/h 12 % more or 1.7 km/h

      12 reasons to buy Komatsu D87E-3:

      Standard blade

      Volume 7 m3 and 5.2 m3 26 % more or 1.8 m3

      Sizes

      Clearance 480 mm and 414 mm 14 % more or 66 mm

      Operation

      Fuel Capacity 490 l. and 479 l. 2 % more or 11 l.
      Engine oil volume 30 l. and 27.3 l. 9 % more or 2.7 l.
      Hydraulic system fluid volume 133 l. and 54.1 l. 59 % more or 78.9 l.
      Final drive fluid volume 38 l. and 13 l. 66 % more or 25 l.

      Motor

      Displacement 11 l. and 10.5 l. 5 % more or 0.5 l.

      Gear box

      Forward gears number 6 and 3 50 % more or 3
      Reverse gears number 6 and 3 50 % more or 3

      Carrier

      Specific ground pressure 66 kPa and 74.5 kPa 11 % less or 8.5 kPa
      Contact with ground area 3.5 m2 and 3.2 m2 9 % more or 0.3 m2
      Track shoes number per side 42 and 40 5 % more or 2

      Neutral reasons:

      Standard blade

      Width 3904 mm and 3480 mm
      Height 1363 mm and 1600 mm

      Sizes

      Length without blade 4736 mm and 4510 mm
      Length with blade 5817 mm and 6120 mm
      Width between caterpillar tracks 2869 mm and 2540 mm
      Height to cab upper part 3573 mm and 3480 mm
      Caterpillar track length on ground level 2878 mm and 3080 mm

      Operation

      Working weight 24584.7 kg and 23998 kg
      Operating voltage 24 V and 24 V

      Motor

      Model 3306T and S6D125E-2
      Full power 184.2 kW and 184.2 kW
      Cylinders number 6 and 6
      Effective power 171.5 kW and 171.5 kW
      Aspiration turbocharging and turbocharging
      Power measured at 2100 rev / min and 2100 rev / min
      Manufacturer Caterpillar and Komatsu

      Hydraulic system

      Type of pump piston pump and Numerous gear pumps
      Overflow valve pressure 22794 kPa and 16547.4 kPa

      Gear box

      Transmission type powershift and Power switching of modular of intermediate type

      Carrier

      Standard shoe size 560 mm and 560 mm
      Rolling bearings number on either side 7 and 7
      Track width 1981 mm and 1980 mm

      Images

      Sizes

      1. Length with blade 5817 mm 1. Length with blade 6120 mm
      2. Width between caterpillar tracks 2869 mm 2. Width between caterpillar tracks 2540 mm
      3. Height to cab upper part 3573 mm 3. Height to cab upper part 3480 mm
      4. Caterpillar track length on ground level 2878 mm 4. Caterpillar track length on ground level 3080 mm
      5. Clearance 414 mm 5. Clearance 480 mm
      6. Length without blade 4736 mm 6. Length without blade 4510 mm

      Carrier

      7. Track width 1981 mm 7. Track width 1980 mm
      8. Standard shoe size 560 mm 8. Standard shoe size 560 mm