vs.

      John Deere 644H MH vs. Komatsu WA85-3

      17 reasons to buy John Deere 644H MH:

      Sizes

      Radius at maximum lifting and unloading 1055 mm and 865 mm 18 % more or 190 mm

      Shovel

      Unloading ground clearance at maximum lifting 2962 mm and 2585 mm 13 % more or 377 mm

      Operation

      Fuel Capacity 341 l. and 90 l. 74 % more or 251 l.
      Hydraulic system fluid volume 117 l. and 95 l. 19 % more or 22 l.
      Engine oil volume 25 l. and 9.4 l. 62 % more or 15.6 l.
      Cooling system fluid volume 29 l. and 12.3 l. 58 % more or 16.7 l.
      Front axle / differential fluid volume 27 l. and 6.1 l. 77 % more or 20.9 l.
      Rear axle / differential fluid volume 27 l. and 6.5 l. 76 % more or 20.5 l.
      Static tipping weight 14019 kg and 4030 kg 71 % more or 9989 kg

      Motor

      Full power 158 kW and 48.5 kW 69 % more or 109.5 kW
      Cylinders number 6 and 4 33 % more or 2
      Displacement 8.1 l. and 3.3 l. 59 % more or 4.8 l.
      Maximum torque 1010.1 Nm and 240 Nm 76 % more or 770.1 Nm

      Hydraulic system

      Pump bandwidth 280 l/min and 64.1 l/min 77 % more or 215.9 l/min

      Gear box

      Forward gears number 4 and 2 50 % more or 2
      Reverse gears number 3 and 2 33 % more or 1
      Maximum forward speed 39 km/h and 5.7 km/h 85 % more or 33.3 km/h

      9 reasons to buy Komatsu WA85-3:

      Sizes

      Clearance 480 mm and 473 mm 1 % more or 7 mm

      Shovel

      Breakout power 48.6 kN and 152.8 kN 68 % less or 104.2 kN

      Operation

      Generator current strength 80 amperes and 55 amperes 31 % more or 25 amperes
      Turn radius 3790 mm and 5500 mm 31 % less or 1710 mm

      Motor

      Power measured at 2500 rev / min and 2200 rev / min 12 % more or 300 rev
      Torque measured at 1600 rev / min and 1300 rev / min 19 % more or 300 rev

      Hydraulic system

      Lifting time 4.9 sec and 6 sec 18 % less or 1.1 sec
      Unloading time 1 sec and 1.2 sec 17 % less or 0.2 sec
      Lowering time 2.6 sec and 3 sec 13 % less or 0.4 sec

      Neutral reasons:

      Sizes

      Length with bucket on ground level 7815 mm and 5410 mm
      Height to cab upper part 3412 mm and 2670 mm
      Wheelbase 3200 mm and 2000 mm
      Hinge axis maximum height 4156 mm and 3225 mm

      Shovel

      Shovel width 3040 mm and 2050 mm

      Operation

      Tyre size 23.5-25 and 405/70 R20 SPT 9
      Rear axle oscillating 26 degrees and 24 degrees
      Working weight 17657 kg and 5000 kg
      Operating voltage 24 V and 12 V

      Motor

      Manufacturer John Deere and Komatsu
      Model 6081H and 4D98E

      Hydraulic system

      Type of pump piston pump and Closed Hydraulic Circuit
      Overflow valve pressure 24850 kPa and 20500 kPa

      Gear box

      Transmission type powershift and Hydro-Static Transmission

      Images

      Sizes

      1. Length with bucket on ground level 7815 mm 1. Length with bucket on ground level 5410 mm
      3. Height to cab upper part 3412 mm 3. Height to cab upper part 2670 mm
      4. Wheelbase 3200 mm 4. Wheelbase 2000 mm
      5. Clearance 473 mm 5. Clearance 480 mm
      6. Hinge axis maximum height 4156 mm 6. Hinge axis maximum height 3225 mm
      8. Radius at maximum lifting and unloading 1055 mm 8. Radius at maximum lifting and unloading 865 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 2962 mm 7. Unloading ground clearance at maximum lifting 2585 mm