vs.

      Caterpillar 904H vs. Case 521EXR

      4 reasons to buy Caterpillar 904H:

      Shovel

      Unloading ground clearance at maximum lifting 2380 mm and 2142 mm 10 % more or 238 mm

      Operation

      Generator current strength 90 amperes and 70 amperes 22 % more or 20 amperes

      Motor

      Power measured at 2400 rev / min and 1800 rev / min 25 % more or 600 rev

      Hydraulic system

      Lifting time 4.5 sec and 5.6 sec 20 % less or 1.1 sec

      16 reasons to buy Case 521EXR:

      Sizes

      Radius at maximum lifting and unloading 938 mm and 665 mm 29 % more or 273 mm
      Clearance 377 mm and 245 mm 35 % more or 132 mm

      Operation

      Cooling system fluid volume 22 l. and 8 l. 64 % more or 14 l.
      Static tipping weight 7175.4 kg and 3000 kg 58 % more or 4175.4 kg
      Fuel Capacity 189 l. and 83 l. 56 % more or 106 l.
      Hydraulic system fluid volume 114 l. and 43 l. 62 % more or 71 l.
      Engine oil volume 12 l. and 7.5 l. 37 % more or 4.5 l.

      Motor

      Displacement 4.5 l. and 2.5 l. 44 % more or 2.0 l.
      Effective power 88 kW and 38.8 kW 56 % more or 49.2 kW
      Full power 96.2 kW and 41 kW 57 % more or 55.2 kW

      Hydraulic system

      Pump bandwidth 134 l/min and 83 l/min 38 % more or 51 l/min
      Lowering time 2.7 sec and 3.2 sec 16 % less or 0.5 sec

      Gear box

      Forward gears number 4 and 2 50 % more or 2
      Reverse gears number 3 and 2 33 % more or 1
      Maximum forward speed 35.9 km/h and 20 km/h 44 % more or 15.9 km/h
      Maximum reverse gear 22.7 km/h and 20 km/h 12 % more or 2.7 km/h

      Neutral reasons:

      Sizes

      Wheelbase 1900 mm and 2750 mm
      Length with bucket on ground level 4695 mm and 6956 mm
      Between tyres width 1645 mm and 2489 mm
      Hinge axis maximum height 3110 mm and 3987 mm
      Height to cab upper part 2390 mm and 3277 mm

      Shovel

      Shovel width 1780 mm and 2550 mm

      Operation

      Tyre size 12-16.5, 10PR and 17.5 x 25 L3
      Working weight 4490 kg and 10633.1 kg

      Motor

      Cylinders number 4 and 4
      Manufacturer Caterpillar and Case
      Model MHI S4Q2-T and 445TA/EGE
      Aspiration turbocharging and turbocharging

      Hydraulic system

      Overflow valve pressure 20684.3 kPa and 24993.5 kPa

      Images

      Sizes

      1. Length with bucket on ground level 4695 mm 1. Length with bucket on ground level 6956 mm
      2. Between tyres width 1645 mm 2. Between tyres width 2489 mm
      3. Height to cab upper part 2390 mm 3. Height to cab upper part 3277 mm
      4. Wheelbase 1900 mm 4. Wheelbase 2750 mm
      5. Clearance 245 mm 5. Clearance 377 mm
      6. Hinge axis maximum height 3110 mm 6. Hinge axis maximum height 3987 mm
      8. Radius at maximum lifting and unloading 665 mm 8. Radius at maximum lifting and unloading 938 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 2380 mm 7. Unloading ground clearance at maximum lifting 2142 mm