vs.

      Case 721EXT vs. John Deere 644A

      16 reasons to buy Case 721EXT:

      Sizes

      Radius at maximum lifting and unloading 1215 mm and 889 mm 27 % more or 326 mm

      Shovel

      Bucket capacity with top 2.3 m3 and 1.9 m3 17 % more or 0.4 m3
      Breakout power 128 kN and 184.7 kN 31 % less or 56.7 kN
      Unloading ground clearance at maximum lifting 2847 mm and 2819.4 mm 1 % more or 27.6 mm

      Operation

      Static tipping weight 11695 kg and 8439 kg 28 % more or 3256 kg
      Fuel Capacity 246 l. and 189.3 l. 23 % more or 56.7 l.
      Hydraulic system fluid volume 193.1 l. and 66.2 l. 66 % more or 126.9 l.
      Cooling system fluid volume 36.9 l. and 34.1 l. 8 % more or 2.8 l.
      Generator current strength 65 amperes and 55 amperes 15 % more or 10 amperes
      Front axle / differential fluid volume 30.3 l. and 22.7 l. 25 % more or 7.6 l.
      Rear axle / differential fluid volume 27.4 l. and 24.6 l. 10 % more or 2.8 l.

      Motor

      Displacement 6.7 l. and 6.6 l. 1 % more or 0.1 l.
      Maximum torque 809 Nm and 467.8 Nm 42 % more or 341.2 Nm

      Gear box

      Maximum forward speed 38 km/h and 37 km/h 3 % more or 1 km/h
      Maximum reverse gear 25.7 km/h and 15.3 km/h 40 % more or 10.4 km/h
      Reverse gears number 3 and 2 33 % more or 1

      9 reasons to buy John Deere 644A:

      Sizes

      Clearance 437 mm and 365 mm 16 % more or 72 mm

      Operation

      Turn radius 4700 mm and 5750 mm 18 % less or 1050 mm
      Engine oil volume 16.1 l. and 14.2 l. 12 % more or 1.9 l.
      Transmission fluid volume 36.9 l. and 25.6 l. 31 % more or 11.3 l.

      Motor

      Effective power 133 kW and 128 kW 4 % more or 5 kW
      Full power 143 kW and 136 kW 5 % more or 7 kW
      Power measured at 2400 rev / min and 1800 rev / min 25 % more or 600 rev
      Torque measured at 1600 rev / min and 1300 rev / min 19 % more or 300 rev

      Hydraulic system

      Pump bandwidth 227 l/min and 119.6 l/min 47 % more or 107.4 l/min

      Neutral reasons:

      Sizes

      Wheelbase 3253 mm and 2640 mm
      Length with bucket on ground level 7773 mm and 6300.2 mm
      Hinge axis maximum height 3975 mm and 3610 mm
      Height to cab upper part 3404 mm and 3099.8 mm

      Shovel

      Shovel width 2700 mm and 2650 mm

      Operation

      Operating voltage 24 V and 12 V
      Rear axle oscillating 24 degrees and 22 degrees
      Tyre size 20.5 R25 and 16-24 / 20.5- 25
      Working weight 14436.5 kg and 11440 kg

      Motor

      Manufacturer Case and John Deere
      Aspiration Turbocharging with subsequent air cooling (by a cooling radiator) and turbocharging

      Hydraulic system

      Type of pump in the middle position with locking with pressure / flow compensation and variable displacement piston pump
      Overflow valve pressure 24821 kPa and 15513.2 kPa

      Gear box

      Transmission type 4F / 3R (4 forward / 3 reverse speeds) proportional with electronic control module, with torque measurement, automatic / manual shifting and modulating and powershift transmission
      Forward gears number 4 and 4

      Images

      Sizes

      1. Length with bucket on ground level 7773 mm 1. Length with bucket on ground level 6300.2 mm
      3. Height to cab upper part 3404 mm 3. Height to cab upper part 3099.8 mm
      4. Wheelbase 3253 mm 4. Wheelbase 2640 mm
      5. Clearance 365 mm 5. Clearance 437 mm
      6. Hinge axis maximum height 3975 mm 6. Hinge axis maximum height 3610 mm
      8. Radius at maximum lifting and unloading 1215 mm 8. Radius at maximum lifting and unloading 889 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 2847 mm 7. Unloading ground clearance at maximum lifting 2819.4 mm