vs.

      Hyundai HL780-3A vs. John Deere 644J High-Lift

      16 reasons to buy Hyundai HL780-3A:

      Sizes

      Radius at maximum lifting and unloading 1440 mm and 1170 mm 19 % more or 270 mm
      Clearance 475 mm and 460 mm 3 % more or 15 mm

      Shovel

      Bucket capacity with top 5.1 m3 and 3 m3 41 % more or 2.1 m3

      Operation

      Transmission fluid volume 43 l. and 26.5 l. 38 % more or 16.5 l.
      Fuel Capacity 470 l. and 352 l. 25 % more or 118 l.
      Front axle / differential fluid volume 60 l. and 22 l. 63 % more or 38 l.
      Hydraulic system fluid volume 235 l. and 117 l. 50 % more or 118 l.
      Rear axle / differential fluid volume 60 l. and 22 l. 63 % more or 38 l.
      Engine oil volume 38 l. and 24.5 l. 36 % more or 13.5 l.
      Static tipping weight 22200 kg and 12560 kg 43 % more or 9640 kg
      Cooling system fluid volume 65 l. and 29.5 l. 55 % more or 35.5 l.

      Motor

      Effective power 238.6 kW and 138 kW 42 % more or 100.6 kW
      Displacement 11 l. and 6.8 l. 38 % more or 4.2 l.
      Maximum torque 1704.3 Nm and 1016 Nm 40 % more or 688.3 Nm

      Hydraulic system

      Pump bandwidth 473 l/min and 257 l/min 46 % more or 216 l/min
      Unloading time 1.3 sec and 1.9 sec 32 % less or 0.6 sec

      8 reasons to buy John Deere 644J High-Lift:

      Shovel

      Breakout power 136 kN and 243.4 kN 44 % less or 107.4 kN
      Unloading ground clearance at maximum lifting 3380 mm and 3347 mm 1 % more or 33 mm

      Operation

      Generator current strength 80 amperes and 70 amperes 12 % more or 10 amperes

      Motor

      Power measured at 2200 rev / min and 2100 rev / min 5 % more or 100 rev

      Hydraulic system

      Lifting time 5.9 sec and 6.4 sec 8 % less or 0.5 sec
      Lowering time 2.8 sec and 3.5 sec 20 % less or 0.7 sec

      Gear box

      Maximum reverse gear 25 km/h and 23.3 km/h 7 % more or 1.7 km/h
      Maximum forward speed 35.4 km/h and 34.7 km/h 2 % more or 0.7 km/h

      Neutral reasons:

      Sizes

      Height to cab upper part 3670 mm and 3400 mm
      Wheelbase 3700 mm and 3200 mm
      Hinge axis maximum height 4560 mm and 4570 mm
      Length with bucket on ground level 9390 mm and 8530 mm

      Shovel

      Shovel width 3450 mm and 2971.8 mm

      Operation

      Operating voltage 24 V and 24 V
      Rear axle oscillating 26 degrees and 24 degrees
      Tyre size 29.5-25 22PR L3 and 23.5 R25
      Working weight 29300 kg and 18425 kg

      Motor

      Manufacturer Cummins and John Deere
      Model QSM11 and 6068H
      Torque measured at 1400 rev / min and 1400 rev / min
      Cylinders number 6 and 6
      Aspiration turbocharging and Turbocharger with charge air cooler by oncoming air flow

      Hydraulic system

      Type of pump open-centered, doubling loop system and variable displacement axial piston pump
      Overflow valve pressure 20615.3 kPa and 24800 kPa

      Gear box

      Transmission type fully automatic powershift and automatic transmission system with power gear shifting
      Forward gears number 4 and 4
      Reverse gears number 3 and 3

      Images

      Sizes

      4. Wheelbase 3700 mm 4. Wheelbase 3200 mm
      5. Clearance 475 mm 5. Clearance 460 mm
      6. Hinge axis maximum height 4560 mm 6. Hinge axis maximum height 4570 mm
      8. Radius at maximum lifting and unloading 1440 mm 8. Radius at maximum lifting and unloading 1170 mm
      1. Length with bucket on ground level 9390 mm 1. Length with bucket on ground level 8530 mm
      3. Height to cab upper part 3670 mm 3. Height to cab upper part 3400 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 3347 mm 7. Unloading ground clearance at maximum lifting 3380 mm