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- John Deere 824K Z-Bar vs. John Deere 644J High-Lift
John Deere 824K Z-Bar vs. John Deere 644J High-Lift
19 reasons to buy John Deere 824K Z-Bar:
Sizes
Radius at maximum lifting and unloading | 1280 mm and 1170 mm | 9 % more or 110 mm |
Shovel
Bucket capacity with top | 4.6 m3 and 3 m3 | 35 % more or 1.6 m3 |
Operation
Cooling system fluid volume | 47.4 l. and 29.5 l. | 38 % more or 17.9 l. |
Static tipping weight | 20508 kg and 12560 kg | 39 % more or 7948 kg |
Transmission fluid volume | 27.9 l. and 26.5 l. | 5 % more or 1.4 l. |
Front axle / differential fluid volume | 45.9 l. and 22 l. | 52 % more or 23.9 l. |
Rear axle / differential fluid volume | 45.9 l. and 22 l. | 52 % more or 23.9 l. |
Fuel Capacity | 469.4 l. and 352 l. | 25 % more or 117.4 l. |
Hydraulic system fluid volume | 159 l. and 117 l. | 26 % more or 42 l. |
Engine oil volume | 37.9 l. and 24.5 l. | 35 % more or 13.4 l. |
Motor
Effective power | 248.3 kW and 138 kW | 44 % more or 110.3 kW |
Displacement | 13.5 l. and 6.8 l. | 50 % more or 6.7 l. |
Maximum torque | 1618.8 Nm and 1016 Nm | 37 % more or 602.8 Nm |
Torque increase | 59 % and 55 % | 7 % more or 4 % |
Hydraulic system
Lowering time | 2.5 sec and 2.8 sec | 11 % less or 0.3 sec |
Pump bandwidth | 513 l/min and 257 l/min | 50 % more or 256 l/min |
Unloading time | 1.3 sec and 1.9 sec | 32 % less or 0.6 sec |
Gear box
Maximum forward speed | 40 km/h and 35.4 km/h | 11 % more or 4.6 km/h |
Maximum reverse gear | 30.1 km/h and 25 km/h | 17 % more or 5.1 km/h |
5 reasons to buy John Deere 644J High-Lift:
Shovel
Breakout power | 136 kN and 185.4 kN | 27 % less or 49.4 kN |
Unloading ground clearance at maximum lifting | 3380 mm and 3190 mm | 6 % more or 190 mm |
Operation
Turn radius | 5.5 mm and 5920 mm | 100 % less or 5914.5 mm |
Motor
Power measured at | 2200 rev / min and 1600 rev / min | 27 % more or 600 rev |
Torque measured at | 1400 rev / min and 900 rev / min | 36 % more or 500 rev |
Neutral reasons:
Sizes
Length with bucket on ground level | 9260 mm and 8530 mm |
Height to cab upper part | 3500 mm and 3400 mm |
Clearance | 460 mm and 460 mm |
Wheelbase | 3460 mm and 3200 mm |
Hinge axis maximum height | 4480 mm and 4570 mm |
Shovel
Shovel width | 3270 mm and 2971.8 mm |
Operation
Operating voltage | 24 V and 24 V |
Generator current strength | 80 amperes and 80 amperes |
Rear axle oscillating | 26 degrees and 24 degrees |
Tyre size | 26.5 R 25 and 23.5 R25 |
Working weight | 26210 kg and 18425 kg |
Motor
Manufacturer | John Deere and John Deere |
Model | 6135H, III Level III certified and 6068H |
Cylinders number | 6 and 6 |
Aspiration | Turbocharger with charge air cooler by oncoming air flow and Turbocharger with charge air cooler by oncoming air flow |
Hydraulic system
Overflow valve pressure | 25165.8 kPa and 24800 kPa |
Lifting time | 5.9 sec and 5.9 sec |
Type of pump | two variable displacement piston pumps, axial, with load sensing and variable displacement axial piston pump |
Gear box
Transmission type | Powershift transmission of intermediate type and automatic transmission system with power gear shifting |
Forward gears number | 4 and 4 |
Reverse gears number | 3 and 3 |
Images
Sizes
1. Length with bucket on ground level | 9260 mm | 1. Length with bucket on ground level | 8530 mm |
3. Height to cab upper part | 3500 mm | 3. Height to cab upper part | 3400 mm |
4. Wheelbase | 3460 mm | 4. Wheelbase | 3200 mm |
5. Clearance | 460 mm | 5. Clearance | 460 mm |
6. Hinge axis maximum height | 4480 mm | 6. Hinge axis maximum height | 4570 mm |
8. Radius at maximum lifting and unloading | 1280 mm | 8. Radius at maximum lifting and unloading | 1170 mm |
Shovel
7. Unloading ground clearance at maximum lifting | 3190 mm | 7. Unloading ground clearance at maximum lifting | 3380 mm |