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- Caterpillar 777D vs. Komatsu HD320-3
Caterpillar 777D vs. Komatsu HD320-3
13 reasons to buy Caterpillar 777D:
Weight
Unloaded rear weight distribution | 54.6 % and 52 % | 5 % more or 2.6 % |
Loaded front weight distribution | 33.3 % and 32 % | 4 % more or 1.3 % |
Sizes
Clearance | 700 mm and 458 mm | 35 % more or 242 mm |
Unloading ground clearance | 872 mm and 440 mm | 50 % more or 432 mm |
Operation
Fuel Capacity | 1137 l. and 500 l. | 56 % more or 637 l. |
Cooling system fluid volume | 325 l. and 133 l. | 59 % more or 192 l. |
Engine oil volume | 124 l. and 25 l. | 80 % more or 99 l. |
Differential/final drive fluid volume | 329 l. and 71 l. | 78 % more or 258 l. |
Hydraulic system fluid volume | 138 l. and 110 l. | 20 % more or 28 l. |
Motor
Full power | 745.7 kW and 302 kW | 60 % more or 443.7 kW |
Displacement | 34.5 l. and 14 l. | 59 % more or 20.5 l. |
Gear box
Forward gears number | 7 and 6 | 14 % more or 1 |
Dump
Lifting capacity with top | 60.5 m3 and 24 m3 | 60 % more or 36.5 m3 |
3 reasons to buy Komatsu HD320-3:
Weight
Unloaded front weight distribution | 48 % and 45.4 % | 5 % more or 2.6 % |
Loaded rear weight distribution | 68 % and 66.7 % | 2 % more or 1.3 % |
Gear box
Maximum speed | 62 km/h and 60.4 km/h | 3 % more or 1.6 km/h |
Neutral reasons:
Weight
Weight without load | 70306.8 kg and 25750 kg |
Laden weight | 161030 kg and 57750 kg |
Sizes
Unloading height | 9970 mm and 7520 mm |
Dimensional length | 9780 mm and 7650 mm |
Overall width | 6100 mm and 3670 mm |
Headroom | 5000 mm and 3850 mm |
Wheelbase | 4570 mm and 3750 mm |
Motor
Model | 3508A and NTA855 |
Manufacturer | Caterpillar and Cummins |
Gear box
Reverse gears number | 1 and 1 |
Transmission type | automatic transmission system with power gear shifting and Komatsu Torqueflow Transmission (with the flow of torque) of planetary type |
Dump
Nominal payload | 90718.5 kg and 29029.9 kg |
Images
Sizes
3. Headroom | 5000 mm | 3. Headroom | 3850 mm |
4. Wheelbase | 4570 mm | 4. Wheelbase | 3750 mm |
5. Clearance | 700 mm | 5. Clearance | 458 mm |
6. Unloading height | 9970 mm | 6. Unloading height | 7520 mm |
7. Unloading ground clearance | 872 mm | 7. Unloading ground clearance | 440 mm |
1. Dimensional length | 9780 mm | 1. Dimensional length | 7650 mm |
2. Overall width | 6100 mm | 2. Overall width | 3670 mm |


