vs.

      Case 821E vs. John Deere 644D

      20 reasons to buy Case 821E:

      Sizes

      Radius at maximum lifting and unloading 1130 mm and 933 mm 17 % more or 197 mm

      Shovel

      Bucket capacity with top 3.4 m3 and 2.3 m3 32 % more or 1.1 m3
      Brimmed bucket capacity 2.9 m3 and 1.9 m3 34 % more or 1.0 m3

      Operation

      Transmission fluid volume 39.7 l. and 37 l. 7 % more or 2.7 l.
      Generator current strength 70 amperes and 42 amperes 40 % more or 28 amperes
      Front axle / differential fluid volume 37.4 l. and 23 l. 39 % more or 14.4 l.
      Rear axle / differential fluid volume 23.7 l. and 23 l. 3 % more or 0.7 l.
      Static tipping weight 14232 kg and 11435.1 kg 20 % more or 2796.9 kg
      Fuel Capacity 288 l. and 254 l. 12 % more or 34 l.
      Hydraulic system fluid volume 174 l. and 95 l. 45 % more or 79 l.
      Engine oil volume 21 l. and 19 l. 10 % more or 2 l.
      Cooling system fluid volume 40.9 l. and 28 l. 32 % more or 12.9 l.

      Motor

      Maximum torque 981.6 Nm and 650.8 Nm 34 % more or 330.8 Nm
      Effective power 148 kW and 115.6 kW 22 % more or 32.4 kW
      Full power 157 kW and 123 kW 22 % more or 34 kW

      Hydraulic system

      Lifting time 5.6 sec and 6.1 sec 8 % less or 0.5 sec
      Unloading time 1.2 sec and 2 sec 40 % less or 0.8 sec
      Lowering time 2.8 sec and 4.3 sec 35 % less or 1.5 sec

      Gear box

      Reverse gears number 3 and 2 33 % more or 1
      Maximum reverse gear 25.3 km/h and 13.2 km/h 48 % more or 12.1 km/h

      8 reasons to buy John Deere 644D:

      Sizes

      Clearance 514 mm and 415.8 mm 19 % more or 98.2 mm

      Shovel

      Unloading ground clearance at maximum lifting 2970 mm and 2960 mm 0 % more or 10 mm
      Breakout power 109 kN and 153.1 kN 29 % less or 44.1 kN

      Operation

      Turn radius 5029.2 mm and 6030 mm 17 % less or 1000.8 mm

      Motor

      Power measured at 2200 rev / min and 1800 rev / min 18 % more or 400 rev
      Displacement 7.6 l. and 6.7 l. 12 % more or 0.9 l.

      Hydraulic system

      Pump bandwidth 238.5 l/min and 119.6 l/min 50 % more or 118.9 l/min

      Gear box

      Maximum forward speed 43.9 km/h and 37 km/h 16 % more or 6.9 km/h

      Neutral reasons:

      Sizes

      Height to cab upper part 3450 mm and 3200.4 mm
      Length with bucket on ground level 7890 mm and 7034.8 mm
      Wheelbase 3340 mm and 2920 mm
      Between tyres width 2890 mm and 2605 mm
      Hinge axis maximum height 4120 mm and 3861.8 mm

      Shovel

      Shovel width 2930 mm and 2660 mm

      Operation

      Operating voltage 24 V and 12 V
      Rear axle oscillating 24 degrees and 22 degrees
      Tyre size 23.5 x 25 l2 with diagonal cord and 20.5-25
      Working weight 17166 kg and 13300 kg

      Motor

      Manufacturer Case and John Deere
      Torque measured at 1400 rev / min and 1400 rev / min
      Model Family IV, 667TA/EBD 3 level and 6-466T
      Cylinders number 6 and 6
      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 gear type pump
      Overflow valve pressure 24821 kPa and 18099 kPa

      Gear box

      Transmission type 4 forward / 3 reverse gears proportional with electronic control module and planetary powershift transmission
      Forward gears number 4 and 4

      Images

      Sizes

      1. Length with bucket on ground level 7890 mm 1. Length with bucket on ground level 7034.8 mm
      2. Between tyres width 2890 mm 2. Between tyres width 2605 mm
      3. Height to cab upper part 3450 mm 3. Height to cab upper part 3200.4 mm
      4. Wheelbase 3340 mm 4. Wheelbase 2920 mm
      5. Clearance 415.8 mm 5. Clearance 514 mm
      6. Hinge axis maximum height 4120 mm 6. Hinge axis maximum height 3861.8 mm
      8. Radius at maximum lifting and unloading 1130 mm 8. Radius at maximum lifting and unloading 933 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 2960 mm 7. Unloading ground clearance at maximum lifting 2970 mm