vs.

      John Deere 644G vs. Komatsu WA250PT-5

      16 reasons to buy John Deere 644G:

      Sizes

      Hook radius at maximum lifting in unfolded state 3527 mm and 3245 mm 8 % more or 282 mm
      Maximum lifting height 3818 mm and 3620 mm 5 % more or 198 mm
      Clearance 483 mm and 465 mm 4 % more or 18 mm

      Shovel

      Brimmed bucket capacity 2.4 m3 and 1.6 m3 33 % more or 0.8 m3

      Operation

      Generator current strength 95 amperes and 60 amperes 37 % more or 35 amperes
      Front differential fluid volume 28.4 l. and 18 l. 37 % more or 10.4 l.
      Rear differential fluid volume 28.4 l. and 18 l. 37 % more or 10.4 l.
      Hydraulic system fluid volume 115 l. and 67 l. 42 % more or 48 l.
      Manipulator static tipping load 6028.2 kg and 12182 kg 51 % less or 6153.8 kg
      Fuel Capacity 284 l. and 184 l. 35 % more or 100 l.
      Cooling system fluid volume 28.5 l. and 17.5 l. 39 % more or 11.0 l.
      Engine oil volume 24 l. and 19.5 l. 19 % more or 4.5 l.

      Motor

      Displacement 7.6 l. and 6 l. 21 % more or 1.6 l.
      Full power 133 kW and 104 kW 22 % more or 29 kW
      Effective power 127 kW and 100 kW 21 % more or 27 kW

      Hydraulic system

      Lifting time 6.2 sec and 6.3 sec 2 % less or 0.1 sec

      14 reasons to buy Komatsu WA250PT-5:

      Sizes

      Hook height at maximum lifting in unfolded state 7345 mm and 6985 mm 5 % more or 360 mm
      Hook radius at maximum lifting in folded state 2745 mm and 2092 mm 24 % more or 653 mm
      Hook height at maximum lifting in folded state 6770 mm and 5732 mm 15 % more or 1038 mm
      Unloading ground clearance at maximum lifting 2905 mm and 2871 mm 1 % more or 34 mm
      Radius at maximum height and unloading 5195 mm and 1138 mm 78 % more or 4057 mm

      Shovel

      Breakout power 109 kN and 157.1 kN 31 % less or 48.1 kN

      Operation

      Static bucket tipping load 8800 kg and 11896.8 kg 26 % less or 3096.8 kg
      Turn radius 4950 mm and 5460 mm 9 % less or 510 mm
      Static tipping forks load 6855 kg and 8278.5 kg 17 % less or 1423.5 kg

      Hydraulic system

      Lowering time 3.3 sec and 3.5 sec 6 % less or 0.2 sec
      Unloading time 1.7 sec and 1.8 sec 6 % less or 0.1 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 forks on ground level 8287 mm and 8055 mm
      Between tyres width 2743 mm and 2470 mm
      Height to cab upper part 3420 mm and 3251 mm
      Wheelbase 3200 mm and 2900 mm
      Length with bucket on ground level 7830 mm and 7310 mm

      Operation

      Rear axle oscillating 26 degrees and 30 degrees
      Operating voltage 12 V and 24 V
      Tyre size 20.5-25 and 20.5/25 (L2)

      Motor

      Aspiration Turbocharging with subsequent air cooling (by a cooling radiator) and Turbocharged engine with subsequent cooling of charging air by oncoming air flow
      Manufacturer John Deere and Komatsu
      Model 6076A and SAA6D102E-2

      Hydraulic system

      Type of pump gear type pump and Double-acting piston type
      Overflow valve pressure 20684.3 kPa and 20600 kPa

      Gear box

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

      Images

      Sizes

      7. Unloading ground clearance at maximum lifting 2871 mm 7. Unloading ground clearance at maximum lifting 2905 mm
      10. Length with forks on ground level 8287 mm 10. Length with forks on ground level 8055 mm
      11. Maximum lifting height 3818 mm 11. Maximum lifting height 3620 mm
      12. Hook height at maximum lifting in folded state 5732 mm 12. Hook height at maximum lifting in folded state 6770 mm
      13. Hook height at maximum lifting in unfolded state 6985 mm 13. Hook height at maximum lifting in unfolded state 7345 mm
      14. Hook radius at maximum lifting in folded state 2092 mm 14. Hook radius at maximum lifting in folded state 2745 mm
      15. Hook radius at maximum lifting in unfolded state 3527 mm 15. Hook radius at maximum lifting in unfolded state 3245 mm
      1. Length with bucket on ground level 7830 mm 1. Length with bucket on ground level 7310 mm
      2. Between tyres width 2743 mm 2. Between tyres width 2470 mm
      3. Height to cab upper part 3420 mm 3. Height to cab upper part 3251 mm
      4. Wheelbase 3200 mm 4. Wheelbase 2900 mm
      5. Clearance 483 mm 5. Clearance 465 mm