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- Case 821E vs. John Deere 644D
Case 821E vs. John Deere 644D
20 reasons to buy Case 821E:
Sizes
Radius at maximum lifting and unloading | 1130 mm and 933 mm | 17 % more or 197 mm |
Shovel
Bucket capacity with top | 3.4 m3 and 2.3 m3 | 32 % more or 1.1 m3 |
Brimmed bucket capacity | 2.9 m3 and 1.9 m3 | 34 % more or 1.0 m3 |
Operation
Transmission fluid volume | 39.7 l. and 37 l. | 7 % more or 2.7 l. |
Generator current strength | 70 amperes and 42 amperes | 40 % more or 28 amperes |
Front axle / differential fluid volume | 37.4 l. and 23 l. | 39 % more or 14.4 l. |
Rear axle / differential fluid volume | 23.7 l. and 23 l. | 3 % more or 0.7 l. |
Static tipping weight | 14232 kg and 11435.1 kg | 20 % more or 2796.9 kg |
Fuel Capacity | 288 l. and 254 l. | 12 % more or 34 l. |
Hydraulic system fluid volume | 174 l. and 95 l. | 45 % more or 79 l. |
Engine oil volume | 21 l. and 19 l. | 10 % more or 2 l. |
Cooling system fluid volume | 40.9 l. and 28 l. | 32 % more or 12.9 l. |
Motor
Maximum torque | 981.6 Nm and 650.8 Nm | 34 % more or 330.8 Nm |
Effective power | 148 kW and 115.6 kW | 22 % more or 32.4 kW |
Full power | 157 kW and 123 kW | 22 % more or 34 kW |
Hydraulic system
Lifting time | 5.6 sec and 6.1 sec | 8 % less or 0.5 sec |
Unloading time | 1.2 sec and 2 sec | 40 % less or 0.8 sec |
Lowering time | 2.8 sec and 4.3 sec | 35 % less or 1.5 sec |
Gear box
Reverse gears number | 3 and 2 | 33 % more or 1 |
Maximum reverse gear | 25.3 km/h and 13.2 km/h | 48 % more or 12.1 km/h |
8 reasons to buy John Deere 644D:
Sizes
Clearance | 514 mm and 415.8 mm | 19 % more or 98.2 mm |
Shovel
Unloading ground clearance at maximum lifting | 2970 mm and 2960 mm | 0 % more or 10 mm |
Breakout power | 109 kN and 153.1 kN | 29 % less or 44.1 kN |
Operation
Turn radius | 5029.2 mm and 6030 mm | 17 % less or 1000.8 mm |
Motor
Power measured at | 2200 rev / min and 1800 rev / min | 18 % more or 400 rev |
Displacement | 7.6 l. and 6.7 l. | 12 % more or 0.9 l. |
Hydraulic system
Pump bandwidth | 238.5 l/min and 119.6 l/min | 50 % more or 118.9 l/min |
Gear box
Maximum forward speed | 43.9 km/h and 37 km/h | 16 % more or 6.9 km/h |
Neutral reasons:
Sizes
Height to cab upper part | 3450 mm and 3200.4 mm |
Length with bucket on ground level | 7890 mm and 7034.8 mm |
Wheelbase | 3340 mm and 2920 mm |
Between tyres width | 2890 mm and 2605 mm |
Hinge axis maximum height | 4120 mm and 3861.8 mm |
Shovel
Shovel width | 2930 mm and 2660 mm |
Operation
Operating voltage | 24 V and 12 V |
Rear axle oscillating | 24 degrees and 22 degrees |
Tyre size | 23.5 x 25 l2 with diagonal cord and 20.5-25 |
Working weight | 17166 kg and 13300 kg |
Motor
Manufacturer | Case and John Deere |
Torque measured at | 1400 rev / min and 1400 rev / min |
Model | Family IV, 667TA/EBD 3 level and 6-466T |
Cylinders number | 6 and 6 |
Aspiration | Turbocharging with subsequent air cooling (by a cooling radiator) and turbocharging |
Hydraulic system
Type of pump | in the middle position with locking with pressure / flow compensation and gear type pump |
Overflow valve pressure | 24821 kPa and 18099 kPa |
Gear box
Transmission type | 4 forward / 3 reverse gears proportional with electronic control module and planetary powershift transmission |
Forward gears number | 4 and 4 |
Images
Sizes
1. Length with bucket on ground level | 7890 mm | 1. Length with bucket on ground level | 7034.8 mm |
2. Between tyres width | 2890 mm | 2. Between tyres width | 2605 mm |
3. Height to cab upper part | 3450 mm | 3. Height to cab upper part | 3200.4 mm |
4. Wheelbase | 3340 mm | 4. Wheelbase | 2920 mm |
5. Clearance | 415.8 mm | 5. Clearance | 514 mm |
6. Hinge axis maximum height | 4120 mm | 6. Hinge axis maximum height | 3861.8 mm |
8. Radius at maximum lifting and unloading | 1130 mm | 8. Radius at maximum lifting and unloading | 933 mm |
Shovel
7. Unloading ground clearance at maximum lifting | 2960 mm | 7. Unloading ground clearance at maximum lifting | 2970 mm |