vs.

      John Deere 644H High-Lift vs. Case 921C

      10 reasons to buy John Deere 644H High-Lift:

      Sizes

      Clearance 461 mm and 445 mm 3 % more or 16 mm
      Radius at maximum lifting and unloading 1175 mm and 1100 mm 6 % more or 75 mm

      Shovel

      Breakout power 30574 pound and 50275 pound 39 % less or 19701 pound
      Unloading ground clearance at maximum lifting 3375 mm and 3150 mm 7 % more or 225 mm

      Operation

      Turn radius 5500 mm and 6140 mm 10 % less or 640 mm

      Motor

      Power measured at 2200 rev / min and 2100 rev / min 5 % more or 100 rev

      Hydraulic system

      Unloading time 1.4 sec and 1.5 sec 7 % less or 0.1 sec
      Lowering time 3 sec and 4.9 sec 39 % less or 1.9 sec
      Pump bandwidth 257.4 l/min and 143.8 l/min 44 % more or 113.6 l/min

      Gear box

      Maximum forward speed 39 km/h and 38.8 km/h 1 % more or 0.2 km/h

      15 reasons to buy Case 921C:

      Shovel

      Bucket capacity with top 3.6 m3 and 3.3 m3 8 % more or 0.3 m3
      Brimmed bucket capacity 2.9 m3 and 2.8 m3 3 % more or 0.1 m3

      Operation

      Front axle / differential fluid volume 63.6 l. and 27 l. 58 % more or 36.6 l.
      Rear axle / differential fluid volume 63.6 l. and 27 l. 58 % more or 36.6 l.
      Static tipping weight 19643 kg and 11248 kg 43 % more or 8395 kg
      Fuel Capacity 393.7 l. and 341 l. 13 % more or 52.7 l.
      Generator current strength 70 amperes and 55 amperes 21 % more or 15 amperes
      Hydraulic system fluid volume 232.8 l. and 117 l. 50 % more or 115.8 l.
      Engine oil volume 36.9 l. and 25 l. 32 % more or 11.9 l.
      Cooling system fluid volume 47.3 l. and 29 l. 39 % more or 18.3 l.
      Transmission fluid volume 28.4 l. and 26 l. 8 % more or 2.4 l.

      Motor

      Maximum torque 1255.5 Nm and 1010 Nm 20 % more or 245.5 Nm
      Effective power 184.9 kW and 134.2 kW 27 % more or 50.7 kW
      Full power 201.3 kW and 153 kW 24 % more or 48.3 kW
      Displacement 10.8 l. and 8.1 l. 25 % more or 2.7 l.

      Neutral reasons:

      Sizes

      Length with bucket on ground level 8525 mm and 8550 mm
      Between tyres width 2697 mm and 2940 mm
      Height to cab upper part 3400 mm and 3570 mm
      Wheelbase 3200 mm and 3400 mm
      Hinge axis maximum height 4569 mm and 4280 mm

      Shovel

      Shovel width 2900 mm and 3050 mm

      Operation

      Rear axle oscillating 26 degrees and 24 degrees
      Tyre size 20.5-25 and 26.5x25 L3
      Working weight 17690 kg and 22961.3 kg
      Operating voltage 24 V and 24 V

      Motor

      Manufacturer John Deere and Cummins
      Cylinders number 6 and 6
      Model 6081H and QSMII
      Aspiration Turbocharging with subsequent air cooling (by a cooling radiator) and Turbocharger with air cooling by oncoming air flow
      Torque measured at 1300 rev / min and 1300 rev / min

      Hydraulic system

      Lifting time 6.2 sec and 6.2 sec
      Type of pump piston pump and pumps with twin vanes
      Overflow valve pressure 24821.1 kPa and 19650 kPa

      Gear box

      Transmission type powershift and 4F / 3R (4 forward / 3 reverse speeds) proportional with electronic control module, with torque measurement, automatic / manual shifting and modulating
      Forward gears number 4 and 4
      Reverse gears number 3 and 3
      Maximum reverse gear 26.7 km/h and 26.7 km/h

      Images

      Sizes

      4. Wheelbase 3200 mm 4. Wheelbase 3400 mm
      5. Clearance 461 mm 5. Clearance 445 mm
      6. Hinge axis maximum height 4569 mm 6. Hinge axis maximum height 4280 mm
      8. Radius at maximum lifting and unloading 1175 mm 8. Radius at maximum lifting and unloading 1100 mm
      1. Length with bucket on ground level 8525 mm 1. Length with bucket on ground level 8550 mm
      2. Between tyres width 2697 mm 2. Between tyres width 2940 mm
      3. Height to cab upper part 3400 mm 3. Height to cab upper part 3570 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 3375 mm 7. Unloading ground clearance at maximum lifting 3150 mm