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Komatsu GD621R-1 vs. Komatsu GD521A-1
3 reasons to buy Komatsu GD621R-1:
Operation
| Fuel Capacity | 285 l. and 227 l. | 20 % more or 58 l. |
Motor
| Maximum power | 116 kW and 101 kW | 13 % more or 15 kW |
| Effective speeds output 5-6 | 116 kW and 101 kW | 13 % more or 15 kW |
3 reasons to buy Komatsu GD521A-1:
Steerage
| Turn radius | 6.6 m and 10.4 m | 37 % less or 3.8 m |
Sizes
| Rear ground clearance | 360 mm and 355 mm | 1 % more or 5 mm |
Front Axle
| Clearance | 360 mm and 355 mm | 1 % more or 5 mm |
Neutral reasons:
Sizes
| Height to cab upper part | 3485 mm and 3485 mm |
| Dimensional length | 8380 mm and 8160 mm |
| Between tyres width | 2395 mm and 2395 mm |
| Wheelbase | 6000 mm and 5780 mm |
| Blade base | 2600 mm and 2540 mm |
| Dual axis wheelbase | 1535 mm and 1535 mm |
Operation
| Overall standard operating weight | 12700 kg and 10800 kg |
| Tyre size | 13.00-24-10PR and 13.00-24-8PR |
Motor
| Displacement | 6.5 l. and 6.5 l. |
| Manufacturer | Komatsu and Komatsu |
| Model | S6D105 and S6D105 |
| Power measured at | 2500 rev / min and 2500 rev / min |
| Cylinders number | 6 and 6 |
Gear box
| Forward gears number | 6 and 6 |
| Maximum forward speed | 44.6 km/h and 44.6 km/h |
| Maximum reverse gear | 54.4 km/h and 54.4 km/h |
Dump
| Mouldboard width | 3710 mm and 3710 mm |
| Mouldboard height | 645 mm and 645 mm |
Images
Sizes
| 1. Dimensional length | 8380 mm | 1. Dimensional length | 8160 mm |
| 2. Between tyres width | 2395 mm | 2. Between tyres width | 2395 mm |
| 3. Height to cab upper part | 3485 mm | 3. Height to cab upper part | 3485 mm |
| 4. Wheelbase | 6000 mm | 4. Wheelbase | 5780 mm |
| 5. Rear ground clearance | 355 mm | 5. Rear ground clearance | 360 mm |
| 7. Dual axis wheelbase | 1535 mm | 7. Dual axis wheelbase | 1535 mm |
| 8. Blade base | 2600 mm | 8. Blade base | 2540 mm |