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- Komatsu WA65-3 vs. Case 721CXR
Komatsu WA65-3 vs. Case 721CXR
7 reasons to buy Komatsu WA65-3:
Shovel
Breakout power | 39.8 kN and 156.3 kN | 75 % less or 116.5 kN |
Operation
Generator current strength | 80 amperes and 65 amperes | 19 % more or 15 amperes |
Turn radius | 3700 mm and 5250 mm | 30 % less or 1550 mm |
Motor
Torque measured at | 1600 rev / min and 1300 rev / min | 19 % more or 300 rev |
Hydraulic system
Unloading time | 1 sec and 1.8 sec | 44 % less or 0.8 sec |
Lowering time | 2.4 sec and 5.1 sec | 53 % less or 2.7 sec |
Lifting time | 5 sec and 5.4 sec | 7 % less or 0.4 sec |
18 reasons to buy Case 721CXR:
Sizes
Clearance | 419 mm and 395 mm | 6 % more or 24 mm |
Radius at maximum lifting and unloading | 930 mm and 780 mm | 16 % more or 150 mm |
Shovel
Unloading ground clearance at maximum lifting | 3170 mm and 2515 mm | 21 % more or 655 mm |
Operation
Front axle / differential fluid volume | 26.5 l. and 6.1 l. | 77 % more or 20.4 l. |
Rear axle / differential fluid volume | 20.8 l. and 6.5 l. | 69 % more or 14.3 l. |
Static tipping weight | 9866 kg and 3500 kg | 65 % more or 6366 kg |
Fuel Capacity | 204 l. and 77 l. | 62 % more or 127 l. |
Hydraulic system fluid volume | 153.3 l. and 70 l. | 54 % more or 83.3 l. |
Engine oil volume | 20.8 l. and 9.4 l. | 55 % more or 11.4 l. |
Cooling system fluid volume | 32.2 l. and 10 l. | 69 % more or 22.2 l. |
Motor
Cylinders number | 6 and 4 | 33 % more or 2 |
Maximum torque | 738.9 Nm and 165 Nm | 78 % more or 573.9 Nm |
Effective power | 113.3 kW and 37 kW | 67 % more or 76.3 kW |
Displacement | 8.3 l. and 2.8 l. | 66 % more or 5.5 l. |
Hydraulic system
Pump bandwidth | 70.4 l/min and 55 l/min | 22 % more or 15.4 l/min |
Gear box
Forward gears number | 4 and 2 | 50 % more or 2 |
Reverse gears number | 3 and 2 | 33 % more or 1 |
Maximum forward speed | 38.9 km/h and 20 km/h | 49 % more or 18.9 km/h |
Neutral reasons:
Sizes
Wheelbase | 1950 mm and 2900 mm |
Hinge axis maximum height | 3115 mm and 3980 mm |
Length with bucket on ground level | 5115 mm and 7030 mm |
Height to cab upper part | 2915 mm and 3260 mm |
Shovel
Shovel width | 1850 mm and 2620 mm |
Operation
Rear axle oscillating | 24 degrees and 24 degrees |
Tyre size | 405/70 R18 SPT 9 and 20.5-25 L3 |
Operating voltage | 12 V and 24 V |
Working weight | 4260 kg and 13542.5 kg |
Motor
Manufacturer | Komatsu and Case |
Model | 4D 94E and 6T-830 |
Hydraulic system
Type of pump | Closed Hydraulic System and pumps with twin vanes |
Overflow valve pressure | 20000 kPa and 132.9 kPa |
Gear box
Transmission type | Hydro-Static Transmission and 4F / 3R (4 forward / 3 reverse speeds) proportional with electronic control module, with torque measurement, automatic / manual shifting and modulating |
Images
Sizes
3. Height to cab upper part | 2915 mm | 3. Height to cab upper part | 3260 mm |
4. Wheelbase | 1950 mm | 4. Wheelbase | 2900 mm |
5. Clearance | 395 mm | 5. Clearance | 419 mm |
6. Hinge axis maximum height | 3115 mm | 6. Hinge axis maximum height | 3980 mm |
8. Radius at maximum lifting and unloading | 780 mm | 8. Radius at maximum lifting and unloading | 930 mm |
1. Length with bucket on ground level | 5115 mm | 1. Length with bucket on ground level | 7030 mm |
Shovel
7. Unloading ground clearance at maximum lifting | 2515 mm | 7. Unloading ground clearance at maximum lifting | 3170 mm |