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- Komatsu WA470-5 vs. Case 921E
Komatsu WA470-5 vs. Case 921E
17 reasons to buy Komatsu WA470-5:
Sizes
Clearance | 525 mm and 489 mm | 7 % more or 36 mm |
Radius at maximum lifting and unloading | 1295 mm and 1270 mm | 2 % more or 25 mm |
Shovel
Unloading ground clearance at maximum lifting | 3100 mm and 3080 mm | 1 % more or 20 mm |
Operation
Engine oil volume | 38 l. and 36.9 l. | 3 % more or 1.1 l. |
Transmission fluid volume | 186 l. and 39.7 l. | 79 % more or 146.3 l. |
Front axle / differential fluid volume | 52 l. and 47.3 l. | 9 % more or 4.7 l. |
Rear axle / differential fluid volume | 52 l. and 47.3 l. | 9 % more or 4.7 l. |
Turn radius | 6201 mm and 6870 mm | 10 % less or 669 mm |
Motor
Displacement | 11 l. and 10.8 l. | 2 % more or 0.2 l. |
Power measured at | 2000 rev / min and 1800 rev / min | 10 % more or 200 rev |
Torque measured at | 1400 rev / min and 900 rev / min | 36 % more or 500 rev |
Hydraulic system
Pump bandwidth | 410 l/min and 162.1 l/min | 60 % more or 247.9 l/min |
Lifting time | 6 sec and 6.2 sec | 3 % less or 0.2 sec |
Unloading time | 1.4 sec and 3.6 sec | 61 % less or 2.2 sec |
Gear box
Reverse gears number | 4 and 3 | 25 % more or 1 |
Maximum forward speed | 39.7 km/h and 37.4 km/h | 6 % more or 2.3 km/h |
Maximum reverse gear | 40.9 km/h and 25.8 km/h | 37 % more or 15.1 km/h |
9 reasons to buy Case 921E:
Shovel
Bucket capacity with top | 4.4 m3 and 4.1 m3 | 7 % more or 0.3 m3 |
Operation
Generator current strength | 95 amperes and 50 amperes | 47 % more or 45 amperes |
Fuel Capacity | 393.7 l. and 390 l. | 1 % more or 3.7 l. |
Hydraulic system fluid volume | 242 l. and 186 l. | 23 % more or 56 l. |
Cooling system fluid volume | 56.8 l. and 50 l. | 12 % more or 6.8 l. |
Static tipping weight | 19319 kg and 18905 kg | 2 % more or 414 kg |
Motor
Maximum torque | 1373 Nm and 1245 Nm | 9 % more or 128 Nm |
Full power | 204 kW and 202.1 kW | 1 % more or 1.9 kW |
Hydraulic system
Lowering time | 3 sec and 3.7 sec | 19 % less or 0.7 sec |
Neutral reasons:
Sizes
Length with bucket on ground level | 8890 mm and 8800 mm |
Between tyres width | 2903 mm and 2987 mm |
Height to cab upper part | 3460 mm and 3700 mm |
Wheelbase | 3450 mm and 3400 mm |
Hinge axis maximum height | 4340 mm and 4280 mm |
Shovel
Shovel width | 2990 mm and 3170 mm |
Operation
Operating voltage | 24 V and 24 V |
Rear axle oscillating | 30 degrees and 24 degrees |
Tyre size | 26.5 R25 and 26.5 x 25 L3 with diagonal cord |
Working weight | 22780 kg and 22962 kg |
Motor
Cylinders number | 6 and 6 |
Aspiration | turbocharging and Turbocharging with subsequent air cooling (by a cooling radiator) |
Manufacturer | Komatsu and Cummins |
Model | SAA6D125E-3 and QSM 11, 3 level |
Hydraulic system
Type of pump | gear type pump and in the middle position with locking with pressure / flow compensation |
Overflow valve pressure | 21000 kPa and 24821 kPa |
Gear box
Transmission type | automatic transmission system with power gear shifting and 4 forward / 3 reverse gears proportional with electronic control module |
Forward gears number | 4 and 4 |
Images
Sizes
1. Length with bucket on ground level | 8890 mm | 1. Length with bucket on ground level | 8800 mm |
2. Between tyres width | 2903 mm | 2. Between tyres width | 2987 mm |
3. Height to cab upper part | 3460 mm | 3. Height to cab upper part | 3700 mm |
4. Wheelbase | 3450 mm | 4. Wheelbase | 3400 mm |
5. Clearance | 525 mm | 5. Clearance | 489 mm |
6. Hinge axis maximum height | 4340 mm | 6. Hinge axis maximum height | 4280 mm |
8. Radius at maximum lifting and unloading | 1295 mm | 8. Radius at maximum lifting and unloading | 1270 mm |
Shovel
7. Unloading ground clearance at maximum lifting | 3100 mm | 7. Unloading ground clearance at maximum lifting | 3080 mm |