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- John Deere 644G vs. Komatsu WA250PT-5
John Deere 644G vs. Komatsu WA250PT-5
16 reasons to buy John Deere 644G:
Sizes
Hook radius at maximum lifting in unfolded state | 3527 mm and 3245 mm | 8 % more or 282 mm |
Maximum lifting height | 3818 mm and 3620 mm | 5 % more or 198 mm |
Clearance | 483 mm and 465 mm | 4 % more or 18 mm |
Shovel
Brimmed bucket capacity | 2.4 m3 and 1.6 m3 | 33 % more or 0.8 m3 |
Operation
Generator current strength | 95 amperes and 60 amperes | 37 % more or 35 amperes |
Front differential fluid volume | 28.4 l. and 18 l. | 37 % more or 10.4 l. |
Rear differential fluid volume | 28.4 l. and 18 l. | 37 % more or 10.4 l. |
Hydraulic system fluid volume | 115 l. and 67 l. | 42 % more or 48 l. |
Manipulator static tipping load | 6028.2 kg and 12182 kg | 51 % less or 6153.8 kg |
Fuel Capacity | 284 l. and 184 l. | 35 % more or 100 l. |
Cooling system fluid volume | 28.5 l. and 17.5 l. | 39 % more or 11.0 l. |
Engine oil volume | 24 l. and 19.5 l. | 19 % more or 4.5 l. |
Motor
Displacement | 7.6 l. and 6 l. | 21 % more or 1.6 l. |
Full power | 133 kW and 104 kW | 22 % more or 29 kW |
Effective power | 127 kW and 100 kW | 21 % more or 27 kW |
Hydraulic system
Lifting time | 6.2 sec and 6.3 sec | 2 % less or 0.1 sec |
14 reasons to buy Komatsu WA250PT-5:
Sizes
Hook height at maximum lifting in unfolded state | 7345 mm and 6985 mm | 5 % more or 360 mm |
Hook radius at maximum lifting in folded state | 2745 mm and 2092 mm | 24 % more or 653 mm |
Hook height at maximum lifting in folded state | 6770 mm and 5732 mm | 15 % more or 1038 mm |
Unloading ground clearance at maximum lifting | 2905 mm and 2871 mm | 1 % more or 34 mm |
Radius at maximum height and unloading | 5195 mm and 1138 mm | 78 % more or 4057 mm |
Shovel
Breakout power | 109 kN and 157.1 kN | 31 % less or 48.1 kN |
Operation
Static bucket tipping load | 8800 kg and 11896.8 kg | 26 % less or 3096.8 kg |
Turn radius | 4950 mm and 5460 mm | 9 % less or 510 mm |
Static tipping forks load | 6855 kg and 8278.5 kg | 17 % less or 1423.5 kg |
Hydraulic system
Lowering time | 3.3 sec and 3.5 sec | 6 % less or 0.2 sec |
Unloading time | 1.7 sec and 1.8 sec | 6 % less or 0.1 sec |
Gear box
Reverse gears number | 4 and 3 | 25 % more or 1 |
Maximum forward speed | 38 km/h and 34.6 km/h | 9 % more or 3.4 km/h |
Maximum reverse gear | 38 km/h and 22 km/h | 42 % more or 16 km/h |
Neutral reasons:
Sizes
Length with forks on ground level | 8287 mm and 8055 mm |
Between tyres width | 2743 mm and 2470 mm |
Height to cab upper part | 3420 mm and 3251 mm |
Wheelbase | 3200 mm and 2900 mm |
Length with bucket on ground level | 7830 mm and 7310 mm |
Operation
Rear axle oscillating | 26 degrees and 30 degrees |
Operating voltage | 12 V and 24 V |
Tyre size | 20.5-25 and 20.5/25 (L2) |
Motor
Aspiration | Turbocharging with subsequent air cooling (by a cooling radiator) and Turbocharged engine with subsequent cooling of charging air by oncoming air flow |
Manufacturer | John Deere and Komatsu |
Model | 6076A and SAA6D102E-2 |
Hydraulic system
Type of pump | gear type pump and Double-acting piston type |
Overflow valve pressure | 20684.3 kPa and 20600 kPa |
Gear box
Transmission type | powershift and Hydrostatic, 1 pump, 2 electric motors with the speed range selection |
Forward gears number | 4 and 4 |
Images
Sizes
7. Unloading ground clearance at maximum lifting | 2871 mm | 7. Unloading ground clearance at maximum lifting | 2905 mm |
10. Length with forks on ground level | 8287 mm | 10. Length with forks on ground level | 8055 mm |
11. Maximum lifting height | 3818 mm | 11. Maximum lifting height | 3620 mm |
12. Hook height at maximum lifting in folded state | 5732 mm | 12. Hook height at maximum lifting in folded state | 6770 mm |
13. Hook height at maximum lifting in unfolded state | 6985 mm | 13. Hook height at maximum lifting in unfolded state | 7345 mm |
14. Hook radius at maximum lifting in folded state | 2092 mm | 14. Hook radius at maximum lifting in folded state | 2745 mm |
15. Hook radius at maximum lifting in unfolded state | 3527 mm | 15. Hook radius at maximum lifting in unfolded state | 3245 mm |
1. Length with bucket on ground level | 7830 mm | 1. Length with bucket on ground level | 7310 mm |
2. Between tyres width | 2743 mm | 2. Between tyres width | 2470 mm |
3. Height to cab upper part | 3420 mm | 3. Height to cab upper part | 3251 mm |
4. Wheelbase | 3200 mm | 4. Wheelbase | 2900 mm |
5. Clearance | 483 mm | 5. Clearance | 465 mm |