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- Caterpillar 904H vs. Case 521EXR
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. |
Fuel Capacity | 189 l. and 83 l. | 56 % more or 106 l. |
Static tipping weight | 7175.4 kg and 3000 kg | 58 % more or 4175.4 kg |
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
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 |
Displacement | 4.5 l. and 2.5 l. | 44 % more or 2.0 l. |
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
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 |
Forward gears number | 4 and 2 | 50 % more or 2 |
Reverse gears number | 3 and 2 | 33 % more or 1 |
Neutral reasons:
Sizes
Length with bucket on ground level | 4695 mm and 6956 mm |
Wheelbase | 1900 mm and 2750 mm |
Hinge axis maximum height | 3110 mm and 3987 mm |
Between tyres width | 1645 mm and 2489 mm |
Height to cab upper part | 2390 mm and 3277 mm |
Shovel
Shovel width | 1780 mm and 2550 mm |
Operation
Working weight | 4490 kg and 10633.1 kg |
Tyre size | 12-16.5, 10PR and 17.5 x 25 L3 |
Motor
Manufacturer | Caterpillar and Case |
Model | MHI S4Q2-T and 445TA/EGE |
Cylinders number | 4 and 4 |
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 |