vs.

      John Deere 644K Z-Bar vs. Hyundai HL780XTD-7A

      4 reasons to buy John Deere 644K Z-Bar:

      Operation

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

      Hydraulic system

      Lifting time 5.5 sec and 6.4 sec 14 % less or 0.9 sec

      Gear box

      Maximum forward speed 36.6 km/h and 34.4 km/h 6 % more or 2.2 km/h
      Maximum reverse gear 24.9 km/h and 23.8 km/h 4 % more or 1.1 km/h

      17 reasons to buy Hyundai HL780XTD-7A:

      Sizes

      Clearance 475 mm and 408 mm 14 % more or 67 mm
      Radius at maximum lifting and unloading 1430 mm and 1120 mm 22 % more or 310 mm

      Shovel

      Unloading ground clearance at maximum lifting 3720 mm and 2860 mm 23 % more or 860 mm
      Bucket capacity with top 5.1 m3 and 3.2 m3 37 % more or 1.9 m3
      Brimmed bucket capacity 4.3 m3 and 2.8 m3 35 % more or 1.5 m3

      Operation

      Cooling system fluid volume 65 l. and 29.5 l. 55 % more or 35.5 l.
      Fuel Capacity 470 l. and 352 l. 25 % more or 118 l.
      Transmission fluid volume 43 l. and 23 l. 47 % more or 20 l.
      Hydraulic system fluid volume 360 l. and 110 l. 69 % more or 250 l.
      Front 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.
      Rear axle / differential fluid volume 60 l. and 22 l. 63 % more or 38 l.
      Static tipping weight 21520 kg and 15230 kg 29 % more or 6290 kg

      Motor

      Effective power 238.6 kW and 173 kW 27 % more or 65.6 kW
      Power measured at 2000 rev / min and 1700 rev / min 15 % more or 300 rev
      Maximum torque 1674.4 Nm and 1016 Nm 39 % more or 658.4 Nm

      Hydraulic system

      Pump bandwidth 482 l/min and 310 l/min 36 % more or 172 l/min

      Neutral reasons:

      Sizes

      Between tyres width 2875 mm and 3220 mm
      Height to cab upper part 3380 mm and 3805 mm
      Wheelbase 3260 mm and 3700 mm
      Hinge axis maximum height 4070 mm and 4930 mm
      Length with bucket on ground level 8140 mm and 9930 mm

      Shovel

      Shovel width 3040 mm and 3450 mm

      Operation

      Operating voltage 24 V and 24 V
      Rear axle oscillating 26 degrees and 26 degrees
      Tyre size 23.5 R25 and 29.5-25
      Working weight 18160 kg and 30000 kg

      Motor

      Manufacturer John Deere and Cummins
      Model 6068H, III Level III certified and QSM11
      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

      Hydraulic system

      Unloading time 1.4 sec and 1.4 sec
      Lowering time 3 sec and 3 sec
      Type of pump variable displacement axial piston pump and vane pumps

      Gear box

      Transmission type Powershift transmission of intermediate type and powershift transmission
      Forward gears number 4 and 4
      Reverse gears number 3 and 3

      Images

      Sizes

      1. Length with bucket on ground level 8140 mm 1. Length with bucket on ground level 9930 mm
      2. Between tyres width 2875 mm 2. Between tyres width 3220 mm
      3. Height to cab upper part 3380 mm 3. Height to cab upper part 3805 mm
      4. Wheelbase 3260 mm 4. Wheelbase 3700 mm
      5. Clearance 408 mm 5. Clearance 475 mm
      6. Hinge axis maximum height 4070 mm 6. Hinge axis maximum height 4930 mm
      8. Radius at maximum lifting and unloading 1120 mm 8. Radius at maximum lifting and unloading 1430 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 2860 mm 7. Unloading ground clearance at maximum lifting 3720 mm