vs.

      Case 121E vs. John Deere 644D

      9 reasons to buy Case 121E:

      Shovel

      Breakout power 41.5 kN and 109 kN 62 % less or 67.5 kN

      Operation

      Turn radius 3963 mm and 5029.2 mm 21 % less or 1066.2 mm
      Generator current strength 55 amperes and 42 amperes 24 % more or 13 amperes

      Motor

      Power measured at 2400 rev / min and 2200 rev / min 8 % more or 200 rev
      Torque measured at 1700 rev / min and 1400 rev / min 18 % more or 300 rev

      Hydraulic system

      Lifting time 6 sec and 6.1 sec 2 % less or 0.1 sec
      Unloading time 1 sec and 2 sec 50 % less or 1 sec
      Lowering time 3 sec and 4.3 sec 30 % less or 1.3 sec

      Gear box

      Maximum reverse gear 20 km/h and 13.2 km/h 34 % more or 6.8 km/h

      17 reasons to buy John Deere 644D:

      Sizes

      Clearance 514 mm and 330 mm 36 % more or 184 mm
      Radius at maximum lifting and unloading 933 mm and 823 mm 12 % more or 110 mm

      Shovel

      Unloading ground clearance at maximum lifting 2970 mm and 2549 mm 14 % more or 421 mm

      Operation

      Fuel Capacity 254 l. and 100 l. 61 % more or 154 l.
      Hydraulic system fluid volume 95 l. and 67 l. 29 % more or 28 l.
      Engine oil volume 19 l. and 10 l. 47 % more or 9 l.
      Front axle / differential fluid volume 23 l. and 9.3 l. 60 % more or 13.7 l.
      Rear axle / differential fluid volume 23 l. and 9.3 l. 60 % more or 13.7 l.
      Static tipping weight 11435.1 kg and 3480 kg 70 % more or 7955.1 kg

      Motor

      Maximum torque 650.8 Nm and 178 Nm 73 % more or 472.8 Nm
      Cylinders number 6 and 4 33 % more or 2
      Effective power 115.6 kW and 42 kW 64 % more or 73.6 kW
      Full power 123 kW and 44 kW 64 % more or 79 kW
      Displacement 7.6 l. and 3.1 l. 59 % more or 4.5 l.

      Hydraulic system

      Pump bandwidth 238.5 l/min and 67 l/min 72 % more or 171.5 l/min

      Gear box

      Maximum forward speed 43.9 km/h and 20 km/h 54 % more or 23.9 km/h
      Forward gears number 4 and 2 50 % more or 2

      Neutral reasons:

      Sizes

      Height to cab upper part 2824 mm and 3200.4 mm
      Wheelbase 2250 mm and 2920 mm
      Hinge axis maximum height 3302 mm and 3861.8 mm
      Length with bucket on ground level 5485 mm and 7034.8 mm
      Between tyres width 1909 mm and 2605 mm

      Shovel

      Shovel width 2050 mm and 2660 mm

      Operation

      Tyre size 14.5x20 and 20.5-25
      Working weight 4921 kg and 13300 kg
      Operating voltage 12 V and 12 V
      Rear axle oscillating 24 degrees and 22 degrees

      Motor

      Manufacturer Deutz and John Deere
      Model F4M2011, 2 level and 6-466T

      Hydraulic system

      Type of pump Open-centered with pressure/flow compensation and gear type pump
      Overflow valve pressure 27000 kPa and 18099 kPa

      Gear box

      Reverse gears number 2 and 2
      Transmission type Hydro-Static Transmission and planetary powershift transmission

      Images

      Sizes

      1. Length with bucket on ground level 5485 mm 1. Length with bucket on ground level 7034.8 mm
      2. Between tyres width 1909 mm 2. Between tyres width 2605 mm
      3. Height to cab upper part 2824 mm 3. Height to cab upper part 3200.4 mm
      4. Wheelbase 2250 mm 4. Wheelbase 2920 mm
      5. Clearance 330 mm 5. Clearance 514 mm
      6. Hinge axis maximum height 3302 mm 6. Hinge axis maximum height 3861.8 mm
      8. Radius at maximum lifting and unloading 823 mm 8. Radius at maximum lifting and unloading 933 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 2549 mm 7. Unloading ground clearance at maximum lifting 2970 mm