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- John Deere 544J Z-Bar vs. Doosan MEGA250-V
John Deere 544J Z-Bar vs. Doosan MEGA250-V
10 reasons to buy John Deere 544J Z-Bar:
Sizes
Clearance | 450 mm and 430 mm | 4 % more or 20 mm |
Shovel
Breakout power | 22672 pound and 29101 pound | 22 % less or 6429 pound |
Unloading ground clearance at maximum lifting | 2790 mm and 2760 mm | 1 % more or 30 mm |
Operation
Generator current strength | 80 amperes and 60 amperes | 25 % more or 20 amperes |
Turn radius | 4953 mm and 6051 mm | 18 % less or 1098 mm |
Fuel Capacity | 322 l. and 270 l. | 16 % more or 52 l. |
Motor
Effective power | 124.5 kW and 120.1 kW | 4 % more or 4.4 kW |
Displacement | 6.8 l. and 5.8 l. | 15 % more or 1.0 l. |
Hydraulic system
Lowering time | 2.5 sec and 3.3 sec | 24 % less or 0.8 sec |
Gear box
Maximum forward speed | 38.3 km/h and 37 km/h | 3 % more or 1.3 km/h |
13 reasons to buy Doosan MEGA250-V:
Sizes
Radius at maximum lifting and unloading | 1041 mm and 990 mm | 5 % more or 51 mm |
Shovel
Bucket capacity with top | 2.4 m3 and 2.3 m3 | 4 % more or 0.1 m3 |
Operation
Cooling system fluid volume | 50 l. and 22 l. | 56 % more or 28 l. |
Transmission fluid volume | 27 l. and 18.5 l. | 31 % more or 8.5 l. |
Front axle / differential fluid volume | 31 l. and 17 l. | 45 % more or 14 l. |
Rear axle / differential fluid volume | 24 l. and 17 l. | 29 % more or 7 l. |
Static tipping weight | 13200 kg and 11510 kg | 13 % more or 1690 kg |
Hydraulic system fluid volume | 195 l. and 97 l. | 50 % more or 98 l. |
Motor
Maximum torque | 736.2 Nm and 672 Nm | 9 % more or 64.2 Nm |
Hydraulic system
Pump bandwidth | 250 l/min and 189 l/min | 24 % more or 61 l/min |
Lifting time | 5.3 sec and 5.5 sec | 4 % less or 0.2 sec |
Unloading time | 1.2 sec and 1.4 sec | 14 % less or 0.2 sec |
Gear box
Maximum reverse gear | 24.5 km/h and 24.2 km/h | 1 % more or 0.3 km/h |
Neutral reasons:
Sizes
Length with bucket on ground level | 7390 mm and 7500 mm |
Height to cab upper part | 3250 mm and 3320 mm |
Wheelbase | 2950 mm and 3020 mm |
Hinge axis maximum height | 3840 mm and 3890 mm |
Shovel
Shovel width | 2691.4 mm and 2740 mm |
Operation
Rear axle oscillating | 24 degrees and 22 degrees |
Tyre size | 20.5 R25 and 20.5-25-16PR-L3 |
Working weight | 12851 kg and 13999.7 kg |
Operating voltage | 24 V and 24 V |
Engine oil volume | 21 l. and 21 l. |
Motor
Aspiration | Turbocharger with charge air cooler by oncoming air flow and Turbocharged engine with intermediate cooling of charging air by oncoming air flow |
Manufacturer | John Deere and Doosan |
Model | 6068H and DB58TIS |
Hydraulic system
Overflow valve pressure | 25150 kPa and 20000 kPa |
Type of pump | variable displacement axial piston pump and pumps with twin vanes |
Gear box
Transmission type | automatic transmission system with power gear shifting and powershift transmission |
Forward gears number | 4 and 4 |
Reverse gears number | 3 and 3 |
Images
Sizes
5. Clearance | 450 mm | 5. Clearance | 430 mm |
6. Hinge axis maximum height | 3840 mm | 6. Hinge axis maximum height | 3890 mm |
8. Radius at maximum lifting and unloading | 990 mm | 8. Radius at maximum lifting and unloading | 1041 mm |
1. Length with bucket on ground level | 7390 mm | 1. Length with bucket on ground level | 7500 mm |
3. Height to cab upper part | 3250 mm | 3. Height to cab upper part | 3320 mm |
4. Wheelbase | 2950 mm | 4. Wheelbase | 3020 mm |
Shovel
7. Unloading ground clearance at maximum lifting | 2790 mm | 7. Unloading ground clearance at maximum lifting | 2760 mm |