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- John Deere 644EH vs. Komatsu WA180-3PT
John Deere 644EH vs. Komatsu WA180-3PT
17 reasons to buy John Deere 644EH:
Sizes
Clearance | 500 mm and 425 mm | 15 % more or 75 mm |
Shovel
Unloading ground clearance at maximum lifting | 2911 mm and 2620 mm | 10 % more or 291 mm |
Bucket capacity with top | 2.9 m3 and 1.6 m3 | 45 % more or 1.3 m3 |
Operation
Front axle / differential fluid volume | 23 l. and 14 l. | 39 % more or 9 l. |
Rear axle / differential fluid volume | 23 l. and 14 l. | 39 % more or 9 l. |
Static tipping weight | 13352 kg and 6880 kg | 48 % more or 6472 kg |
Turn radius | 5420 mm and 5570 mm | 3 % less or 150 mm |
Generator current strength | 65 amperes and 50 amperes | 23 % more or 15 amperes |
Fuel Capacity | 284 l. and 170 l. | 40 % more or 114 l. |
Hydraulic system fluid volume | 115 l. and 41 l. | 64 % more or 74 l. |
Engine oil volume | 24 l. and 19.5 l. | 19 % more or 4.5 l. |
Cooling system fluid volume | 28.5 l. and 21.5 l. | 25 % more or 7.0 l. |
Motor
Full power | 144 kW and 83.5 kW | 42 % more or 60.5 kW |
Displacement | 7.6 l. and 5.9 l. | 22 % more or 1.7 l. |
Maximum torque | 705 Nm and 417 Nm | 41 % more or 288 Nm |
Hydraulic system
Pump bandwidth | 247.9 l/min and 144 l/min | 42 % more or 103.9 l/min |
Gear box
Maximum forward speed | 41 km/h and 34.5 km/h | 16 % more or 6.5 km/h |
9 reasons to buy Komatsu WA180-3PT:
Sizes
Radius at maximum lifting and unloading | 1100 mm and 1003 mm | 9 % more or 97 mm |
Shovel
Breakout power | 88 kN and 152.4 kN | 42 % less or 64.4 kN |
Operation
Transmission fluid volume | 23.5 l. and 13 l. | 45 % more or 10.5 l. |
Motor
Power measured at | 2400 rev / min and 2200 rev / min | 8 % more or 200 rev |
Hydraulic system
Lifting time | 5 sec and 6.2 sec | 19 % less or 1.2 sec |
Unloading time | 1.1 sec and 1.9 sec | 42 % less or 0.8 sec |
Lowering time | 2.5 sec and 3.5 sec | 29 % less or 1.0 sec |
Gear box
Reverse gears number | 4 and 3 | 25 % more or 1 |
Maximum reverse gear | 35 km/h and 26.4 km/h | 25 % more or 8.6 km/h |
Neutral reasons:
Sizes
Hinge axis maximum height | 4010 mm and 3760 mm |
Between tyres width | 2729 mm and 2500 mm |
Height to cab upper part | 3400 mm and 5060 mm |
Wheelbase | 3200 mm and 2700 mm |
Length with bucket on ground level | 7850 mm and 7070 mm |
Shovel
Shovel width | 2900 mm and 2500 mm |
Operation
Operating voltage | 12 V and 24 V |
Rear axle oscillating | 26 degrees and 24 degrees |
Tyre size | 20.5-25 and 17.5 R 25 |
Working weight | 16015 kg and 10245 kg |
Motor
Manufacturer | John Deere and Komatsu |
Model | 6076A and S6D102-E1 |
Cylinders number | 6 and 6 |
Aspiration | turbocharging and turbocharging |
Hydraulic system
Overflow valve pressure | 19650 kPa and 21000 kPa |
Gear box
Transmission type | powershift and Fully automatic, full powershift with downshift system |
Forward gears number | 4 and 4 |
Images
Sizes
1. Length with bucket on ground level | 7850 mm | 1. Length with bucket on ground level | 7070 mm |
2. Between tyres width | 2729 mm | 2. Between tyres width | 2500 mm |
3. Height to cab upper part | 3400 mm | 3. Height to cab upper part | 5060 mm |
4. Wheelbase | 3200 mm | 4. Wheelbase | 2700 mm |
5. Clearance | 500 mm | 5. Clearance | 425 mm |
6. Hinge axis maximum height | 4010 mm | 6. Hinge axis maximum height | 3760 mm |
8. Radius at maximum lifting and unloading | 1003 mm | 8. Radius at maximum lifting and unloading | 1100 mm |
Shovel
7. Unloading ground clearance at maximum lifting | 2911 mm | 7. Unloading ground clearance at maximum lifting | 2620 mm |