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- Komatsu D21P-8 vs. Komatsu D475A-5SD
Komatsu D21P-8 vs. Komatsu D475A-5SD
1 reasons to buy Komatsu D21P-8:
Carrier
Specific ground pressure | 20.6 kPa and 111 kPa | 81 % less or 90.4 kPa |
15 reasons to buy Komatsu D475A-5SD:
Standard blade
Cut depth | 860 mm and 355 mm | 59 % more or 505 mm |
Operation
Final drive fluid volume | 75 l. and 8 l. | 89 % more or 67 l. |
Fuel Capacity | 1670 l. and 60 l. | 96 % more or 1610 l. |
Cooling system fluid volume | 275 l. and 10 l. | 96 % more or 265 l. |
Engine oil volume | 121 l. and 6.6 l. | 95 % more or 114.4 l. |
Motor
Effective power | 671 kW and 29.5 kW | 96 % more or 641.5 kW |
Displacement | 30.5 l. and 3.1 l. | 90 % more or 27.4 l. |
Cylinders number | 12 and 4 | 67 % more or 8 |
Gear box
Forward gears number | 3 and 2 | 33 % more or 1 |
Reverse gears number | 3 and 2 | 33 % more or 1 |
Maximum forward speed | 10.9 km/h and 4.4 km/h | 60 % more or 6.5 km/h |
Maximum reverse gear | 14.3 km/h and 5.6 km/h | 61 % more or 8.7 km/h |
Carrier
Contact with ground area | 7.1 m2 and 1.7 m2 | 76 % more or 5.4 m2 |
Track shoes number per side | 40 and 37 | 7 % more or 3 |
Rolling bearings number on either side | 7 and 5 | 29 % more or 2 |
Neutral reasons:
Standard blade
Width | 2560 mm and 6465 mm |
Height | 820 mm and 3220 mm |
Sizes
Length with blade | 3365 mm and 10525 mm |
Width between caterpillar tracks | 1490 mm and 2770 mm |
Height to cab upper part | 2450 mm and 4590 mm |
Operation
Working weight | 4240 kg and 108080 kg |
Motor
Manufacturer | Komatsu and Komatsu |
Model | 4D94LE-2 and SDA12V140E |
Aspiration | natural aspiration and Turbocharging with subsequent air cooling (by a cooling radiator) |
Gear box
Transmission type | Komatsu transmission Hydro-Gear switching and Komatsu TORQFLOW transmission |
Carrier
Standard shoe size | 510 mm and 810 mm |
Images
Sizes
1. Length with blade | 3365 mm | 1. Length with blade | 10525 mm |
2. Width between caterpillar tracks | 1490 mm | 2. Width between caterpillar tracks | 2770 mm |
3. Height to cab upper part | 2450 mm | 3. Height to cab upper part | 4590 mm |
Carrier
8. Standard shoe size | 510 mm | 8. Standard shoe size | 810 mm |