vs.

      John Deere 644GH vs. Komatsu WA320-6

      17 reasons to buy John Deere 644GH:

      Sizes

      Clearance 483 mm and 425 mm 12 % more or 58 mm

      Shovel

      Brimmed bucket capacity 2.8 m3 and 2.4 m3 14 % more or 0.4 m3
      Unloading ground clearance at maximum lifting 2942 mm and 2850 mm 3 % more or 92 mm
      Bucket capacity with top 3.1 m3 and 2.8 m3 10 % more or 0.3 m3

      Operation

      Turn radius 5460 mm and 12520 mm 56 % less or 7060 mm
      Fuel Capacity 284 l. and 245 l. 14 % more or 39 l.
      Hydraulic system fluid volume 115 l. and 89 l. 23 % more or 26 l.
      Engine oil volume 24 l. and 23 l. 4 % more or 1 l.
      Cooling system fluid volume 28.5 l. and 25 l. 12 % more or 3.5 l.
      Front axle / differential fluid volume 28 l. and 24 l. 14 % more or 4 l.
      Rear axle / differential fluid volume 28 l. and 24 l. 14 % more or 4 l.
      Static tipping weight 13477.1 kg and 12535 kg 7 % more or 942.1 kg

      Motor

      Power measured at 2200 rev / min and 2000 rev / min 9 % more or 200 rev
      Displacement 7.6 l. and 6.7 l. 12 % more or 0.9 l.
      Effective power 138 kW and 125 kW 9 % more or 13 kW
      Full power 146 kW and 127.3 kW 13 % more or 18.7 kW

      Hydraulic system

      Pump bandwidth 263.1 l/min and 61 l/min 77 % more or 202.1 l/min

      7 reasons to buy Komatsu WA320-6:

      Shovel

      Breakout power 129 kN and 169.2 kN 24 % less or 40.2 kN

      Hydraulic system

      Lifting time 6.1 sec and 6.2 sec 2 % less or 0.1 sec
      Unloading time 1.2 sec and 1.8 sec 33 % less or 0.6 sec
      Lowering time 3.3 sec and 3.5 sec 6 % less or 0.2 sec

      Gear box

      Reverse gears number 4 and 3 25 % more or 1
      Maximum forward speed 38 km/h and 34.6 km/h 9 % more or 3.4 km/h
      Maximum reverse gear 38 km/h and 22 km/h 42 % more or 16 km/h

      Neutral reasons:

      Sizes

      Length with bucket on ground level 7860 mm and 7515 mm
      Between tyres width 2732 mm and 2585 mm
      Height to cab upper part 3420 mm and 3200 mm
      Wheelbase 3200 mm and 3030 mm
      Hinge axis maximum height 4000 mm and 3905 mm

      Shovel

      Shovel width 3050 mm and 2740 mm

      Operation

      Working weight 16616.9 kg and 14370 kg

      Motor

      Manufacturer John Deere and Komatsu
      Model 6076A and SAA6D107E-1
      Cylinders number 6 and 6
      Aspiration Turbocharging with subsequent air cooling (by a cooling radiator) and turbocharging

      Hydraulic system

      Type of pump gear type pump and gear type pump
      Overflow valve pressure 3000 lb / sq. inch and 3000 lb / sq. inch

      Gear box

      Transmission type powershift transmission and Hydrostatic, 1 pump, 2 electric motors with the speed range selection
      Forward gears number 4 and 4

      Images

      Sizes

      1. Length with bucket on ground level 7860 mm 1. Length with bucket on ground level 7515 mm
      2. Between tyres width 2732 mm 2. Between tyres width 2585 mm
      3. Height to cab upper part 3420 mm 3. Height to cab upper part 3200 mm
      4. Wheelbase 3200 mm 4. Wheelbase 3030 mm
      5. Clearance 483 mm 5. Clearance 425 mm
      6. Hinge axis maximum height 4000 mm 6. Hinge axis maximum height 3905 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 2942 mm 7. Unloading ground clearance at maximum lifting 2850 mm