vs.

      Case 921C vs. Case 521EXT

      22 reasons to buy Case 921C:

      Sizes

      Clearance 445 mm and 377 mm 15 % more or 68 mm

      Shovel

      Unloading ground clearance at maximum lifting 3150 mm and 2780 mm 12 % more or 370 mm
      Bucket capacity with top 3.6 m3 and 1.6 m3 56 % more or 2.0 m3
      Brimmed bucket capacity 2.9 m3 and 1.4 m3 52 % more or 1.5 m3

      Operation

      Cooling system fluid volume 47.3 l. and 22 l. 53 % more or 25.3 l.
      Transmission fluid volume 28.4 l. and 18.9 l. 33 % more or 9.5 l.
      Front axle / differential fluid volume 63.6 l. and 21.5 l. 66 % more or 42.1 l.
      Rear axle / differential fluid volume 63.6 l. and 21.5 l. 66 % more or 42.1 l.
      Static tipping weight 19643 kg and 7094.2 kg 64 % more or 12548.8 kg
      Fuel Capacity 393.7 l. and 189 l. 52 % more or 204.7 l.
      Hydraulic system fluid volume 232.8 l. and 114 l. 51 % more or 118.8 l.
      Engine oil volume 36.9 l. and 12 l. 67 % more or 24.9 l.

      Motor

      Cylinders number 6 and 4 33 % more or 2
      Maximum torque 1255.5 Nm and 551.8 Nm 56 % more or 703.7 Nm
      Torque increase 41 % and 19 % 54 % more or 22 %
      Effective power 184.9 kW and 88 kW 52 % more or 96.9 kW
      Full power 201.3 kW and 96.2 kW 52 % more or 105.1 kW
      Power measured at 2100 rev / min and 1800 rev / min 14 % more or 300 rev
      Displacement 10.8 l. and 4.5 l. 58 % more or 6.3 l.

      Hydraulic system

      Pump bandwidth 143.8 l/min and 134 l/min 7 % more or 9.8 l/min

      Gear box

      Maximum forward speed 38.8 km/h and 35.9 km/h 7 % more or 2.9 km/h
      Maximum reverse gear 26.7 km/h and 22.7 km/h 15 % more or 4.0 km/h

      5 reasons to buy Case 521EXT:

      Sizes

      Radius at maximum lifting and unloading 1116 mm and 1100 mm 1 % more or 16 mm

      Operation

      Turn radius 4972 mm and 6140 mm 19 % less or 1168 mm

      Hydraulic system

      Lifting time 5.6 sec and 6.2 sec 10 % less or 0.6 sec
      Unloading time 1.1 sec and 1.5 sec 27 % less or 0.4 sec
      Lowering time 2.7 sec and 4.9 sec 45 % less or 2.2 sec

      Neutral reasons:

      Sizes

      Between tyres width 2940 mm and 2489 mm
      Height to cab upper part 3570 mm and 3277 mm
      Length with bucket on ground level 8550 mm and 6652 mm
      Wheelbase 3400 mm and 2750 mm
      Hinge axis maximum height 4280 mm and 3743 mm

      Shovel

      Shovel width 3050 mm and 2550 mm

      Operation

      Rear axle oscillating 24 degrees and 24 degrees
      Tyre size 26.5x25 L3 and 17.5 x 25 L3
      Working weight 22961.3 kg and 12183.9 kg
      Operating voltage 24 V and 24 V
      Generator current strength 70 amperes and 70 amperes

      Motor

      Manufacturer Cummins and Case
      Model QSMII and 445TA/EGE
      Aspiration Turbocharger with air cooling by oncoming air flow and turbocharging
      Torque measured at 1300 rev / min and 1300 rev / min

      Hydraulic system

      Overflow valve pressure 19650 kPa and 24993.5 kPa

      Gear box

      Forward gears number 4 and 4
      Reverse gears number 3 and 3

      Images

      Sizes

      6. Hinge axis maximum height 4280 mm 6. Hinge axis maximum height 3743 mm
      8. Radius at maximum lifting and unloading 1100 mm 8. Radius at maximum lifting and unloading 1116 mm
      1. Length with bucket on ground level 8550 mm 1. Length with bucket on ground level 6652 mm
      2. Between tyres width 2940 mm 2. Between tyres width 2489 mm
      3. Height to cab upper part 3570 mm 3. Height to cab upper part 3277 mm
      4. Wheelbase 3400 mm 4. Wheelbase 2750 mm
      5. Clearance 445 mm 5. Clearance 377 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 3150 mm 7. Unloading ground clearance at maximum lifting 2780 mm