vs.

      Volvo BM 646 vs. Caterpillar 438D

      5 reasons to buy Volvo BM 646:

      Sizes

      Clearance 406.4 mm and 320 mm 21 % more or 86.4 mm

      Motor

      Displacement 4.2 l. and 4 l. 5 % more or 0.2 l.

      Load-transfer device

      Ground clearance at maximum unloading height 3090 mm and 2613 mm 15 % more or 477 mm
      Bucket breakout force 38.3 kN and 50.2 kN 24 % less or 11.9 kN

      Backdigger

      Radius at high-altitude loading in folded state 2420 mm and 1742 mm 28 % more or 678 mm

      9 reasons to buy Caterpillar 438D:

      Operation

      Fuel Capacity 128 l. and 96 l. 25 % more or 32 l.

      Motor

      Full power 73.1 kW and 63 kW 14 % more or 10.1 kW

      Load-transfer device

      Radius at max unloading height 764 mm and 520 mm 32 % more or 244 mm
      Lifting capacity at full height 3388 kg and 2299.7 kg 32 % more or 1088.3 kg

      Hydraulic system

      Pump bandwidth 163 l/min and 113 l/min 31 % more or 50 l/min

      Gear box

      Maximum forward speed 31.8 km/h and 29.7 km/h 7 % more or 2.1 km/h
      Maximum reverse gear 31.8 km/h and 29.7 km/h 7 % more or 2.1 km/h

      Backdigger

      Digging depth in folded state 4854 mm and 4270 mm 12 % more or 584 mm
      Loading height in folded state 3712 mm and 3630 mm 2 % more or 82 mm

      Neutral reasons:

      Sizes

      Transport length 8060 mm and 5760 mm
      Transport height 4050 mm and 3740 mm
      Height to cab upper part 2860 mm and 2900 mm
      Wheelbase 2550 mm and 2100 mm

      Operation

      Front tyres size 2wd / 4wd 14.9-24/14 and 12.5/80x18,10PR
      Rear tyres size 2wd/4wd 18.4-34/14 and 16.9x28,10PR

      Motor

      Manufacturer Volvo and Caterpillar
      Model BM TD 42 and 3054T
      Cylinders number 4 and 4

      Hydraulic system

      Type of pump gear type pump and load sensing, pressure control, with locking in the middle position
      Overflow valve pressure 16995.6 kPa and 22800 kPa

      Gear box

      Transmission type hydromechanical transmission with power gear shifting and servodrive
      Forward gears number 4 and 4
      Reverse gears number 4 and 4

      Backdigger

      Hinge joint radius in folded state 5840 mm and 5637 mm

      Images

      Sizes

      1. Transport length 8060 mm 1. Transport length 5760 mm
      3. Transport height 4050 mm 3. Transport height 3740 mm
      4. Wheelbase 2550 mm 4. Wheelbase 2100 mm
      5. Clearance 406.4 mm 5. Clearance 320 mm
      6. Height to cab upper part 2860 mm 6. Height to cab upper part 2900 mm

      Load-transfer device

      7. Ground clearance at maximum unloading height 3090 mm 7. Ground clearance at maximum unloading height 2613 mm
      8. Radius at max unloading height 520 mm 8. Radius at max unloading height 764 mm

      Backdigger

      10. Loading height in folded state 3630 mm 10. Loading height in folded state 3712 mm
      11. Hinge joint radius in folded state 5840 mm 11. Hinge joint radius in folded state 5637 mm
      12. Digging depth in folded state 4270 mm 12. Digging depth in folded state 4854 mm
      13. Radius at high-altitude loading in folded state 2420 mm 13. Radius at high-altitude loading in folded state 1742 mm