vs.

      Caterpillar 438 serie II vs. Komatsu WB91R-2

      8 reasons to buy Caterpillar 438 serie II:

      Operation

      Turn radius 3920 mm and 5450 mm 28 % less or 1530 mm

      Load-transfer device

      Bucket breakout force 35.7 kN and 59.6 kN 40 % less or 23.9 kN
      Radius at max unloading height 855 mm and 750 mm 12 % more or 105 mm

      Backdigger

      Loading height in unfolded state 4175 mm and 3500 mm 16 % more or 675 mm
      Bucket digging force in folded state 4993.1 kg and 3570 kg 29 % more or 1423.1 kg
      Loading height in folded state 3458 mm and 2500 mm 28 % more or 958 mm
      Digging depth in folded state 4812 mm and 4500 mm 6 % more or 312 mm
      Digging depth in unfolded state 6063 mm and 5650 mm 7 % more or 413 mm

      10 reasons to buy Komatsu WB91R-2:

      Sizes

      Clearance 430 mm and 335 mm 22 % more or 95 mm

      Motor

      Full power 67.7 kW and 61.9 kW 9 % more or 5.8 kW
      Effective power 61.5 kW and 57.4 kW 7 % more or 4.1 kW
      Displacement 4.4 l. and 3.9 l. 11 % more or 0.5 l.

      Load-transfer device

      Lifting capacity at full height 4220 kg and 2364 kg 44 % more or 1856 kg
      Ground clearance at maximum unloading height 2750 mm and 2648 mm 4 % more or 102 mm
      Digging depth 110 mm and 95 mm 14 % more or 15 mm

      Hydraulic system

      Pump bandwidth 165 l/min and 138 l/min 16 % more or 27 l/min

      Gear box

      Maximum forward speed 40 km/h and 30.5 km/h 24 % more or 9.5 km/h
      Maximum reverse gear 40 km/h and 30.6 km/h 23 % more or 9.4 km/h

      Neutral reasons:

      Sizes

      Transport length 5696 mm and 5895 mm
      Transport width 2406 mm and 2320 mm
      Transport height 3597 mm and 3660 mm
      Height to cab upper part 2795 mm and 2750 mm
      Wheelbase 2067 mm and 2175 mm

      Operation

      Front tyres size 2wd / 4wd 12.5/80-18 10 PR and 12.5/80 R18- 10 PR
      Rear tyres size 2wd/4wd 18.4/15-26 12PR and 16.9 x 28 - 10 PR

      Motor

      Manufacturer Perkins and Komatsu
      Model 4.2 and 4D106-1FA

      Load-transfer device

      Bucket volume 1 m3 and 1 m3
      Shovel width 2396 mm and 2320 mm

      Hydraulic system

      Overflow valve pressure 18600 kPa and 18500 kPa

      Gear box

      Forward gears number 4 and 4
      Reverse gears number 4 and 4

      Backdigger

      Hinge joint radius in unfolded state 6848 mm and 6550 mm
      Hinge joint radius in folded state 5605 mm and 5550 mm

      Images

      Sizes

      1. Transport length 5696 mm 1. Transport length 5895 mm
      2. Transport width 2406 mm 2. Transport width 2320 mm
      3. Transport height 3597 mm 3. Transport height 3660 mm
      4. Wheelbase 2067 mm 4. Wheelbase 2175 mm
      5. Clearance 335 mm 5. Clearance 430 mm
      6. Height to cab upper part 2795 mm 6. Height to cab upper part 2750 mm

      Load-transfer device

      7. Ground clearance at maximum unloading height 2648 mm 7. Ground clearance at maximum unloading height 2750 mm
      8. Radius at max unloading height 855 mm 8. Radius at max unloading height 750 mm
      9. Digging depth 95 mm 9. Digging depth 110 mm

      Backdigger

      10. Loading height in folded state 3458 mm 10. Loading height in folded state 2500 mm
      11. Hinge joint radius in folded state 5605 mm 11. Hinge joint radius in folded state 5550 mm
      12. Digging depth in folded state 4812 mm 12. Digging depth in folded state 4500 mm