vs.

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

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

      Shovel

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

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

      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

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

      Motor

      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
      Effective power 238.6 kW and 138 kW 42 % more or 100.6 kW

      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

      Neutral reasons:

      Sizes

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

      Shovel

      Shovel width 2971.8 mm and 3450 mm

      Operation

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

      Motor

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

      Hydraulic system

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

      Gear box

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

      Images

      Sizes

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

      Shovel

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