vs.

      Case 521EXT vs. Case 921C

      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

      22 reasons to buy Case 921C:

      Sizes

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

      Shovel

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

      Operation

      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.
      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

      Motor

      Displacement 10.8 l. and 4.5 l. 58 % more or 6.3 l.
      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

      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

      Neutral reasons:

      Sizes

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

      Shovel

      Shovel width 2550 mm and 3050 mm

      Operation

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

      Motor

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

      Hydraulic system

      Overflow valve pressure 24993.5 kPa and 19650 kPa

      Gear box

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

      Images

      Sizes

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

      Shovel

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