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- Caterpillar 938H vs. Case 621E
Caterpillar 938H vs. Case 621E
21 reasons to buy Caterpillar 938H:
Sizes
Clearance | 397 mm and 370 mm | 7 % more or 27 mm |
Radius at maximum lifting and unloading | 1077 mm and 1013 mm | 6 % more or 64 mm |
Shovel
Bucket capacity with top | 2.8 m3 and 2.3 m3 | 18 % more or 0.5 m3 |
Brimmed bucket capacity | 2.4 m3 and 2 m3 | 17 % more or 0.4 m3 |
Operation
Rear axle / differential fluid volume | 53 l. and 22 l. | 58 % more or 31 l. |
Engine oil volume | 17.4 l. and 13.2 l. | 24 % more or 4.2 l. |
Static tipping weight | 11593 kg and 10603 kg | 9 % more or 990 kg |
Transmission fluid volume | 43 l. and 18.9 l. | 56 % more or 24.1 l. |
Generator current strength | 80 amperes and 65 amperes | 19 % more or 15 amperes |
Front axle / differential fluid volume | 57 l. and 22 l. | 61 % more or 35 l. |
Fuel Capacity | 247 l. and 246 l. | 0 % more or 1 l. |
Motor
Effective power | 134 kW and 109 kW | 19 % more or 25 kW |
Full power | 147 kW and 116 kW | 21 % more or 31 kW |
Power measured at | 2200 rev / min and 1800 rev / min | 18 % more or 400 rev |
Maximum torque | 840 Nm and 689 Nm | 18 % more or 151 Nm |
Torque increase | 38 % and 33 % | 13 % more or 5 % |
Hydraulic system
Lowering time | 2.7 sec and 4.7 sec | 43 % less or 2.0 sec |
Pump bandwidth | 295 l/min and 171 l/min | 42 % more or 124 l/min |
Lifting time | 5.4 sec and 6.3 sec | 14 % less or 0.9 sec |
Gear box
Maximum reverse gear | 25.5 km/h and 25 km/h | 2 % more or 0.5 km/h |
Maximum forward speed | 43.2 km/h and 38.6 km/h | 11 % more or 4.6 km/h |
6 reasons to buy Case 621E:
Shovel
Breakout power | 103.4 kN and 122.7 kN | 16 % less or 19.3 kN |
Unloading ground clearance at maximum lifting | 2801 mm and 2771 mm | 1 % more or 30 mm |
Operation
Hydraulic system fluid volume | 147.6 l. and 89 l. | 40 % more or 58.6 l. |
Turn radius | 5245 mm and 12024 mm | 56 % less or 6779 mm |
Motor
Displacement | 6.7 l. and 6.6 l. | 1 % more or 0.1 l. |
Hydraulic system
Unloading time | 1.3 sec and 1.4 sec | 7 % less or 0.1 sec |
Neutral reasons:
Sizes
Height to cab upper part | 3356 mm and 3395 mm |
Wheelbase | 3020 mm and 2900 mm |
Hinge axis maximum height | 3843 mm and 3830 mm |
Length with bucket on ground level | 7343 mm and 7384 mm |
Between tyres width | 2674 mm and 2523 mm |
Shovel
Shovel width | 2700 mm and 2602 mm |
Operation
Cooling system fluid volume | 36 l. and 36 l. |
Operating voltage | 24 V and 24 V |
Rear axle oscillating | 24 degrees and 24 degrees |
Tyre size | 20.5R25 and 20.5 R25 |
Working weight | 15059 kg and 12431 kg |
Motor
Manufacturer | Caterpillar and Case |
Cylinders number | 6 and 6 |
Model | 6.6 ACERT and Family IV, 667TA/EDB, III Level III certified |
Hydraulic system
Type of pump | piston pump and in the middle position with locking with pressure / flow compensation |
Overflow valve pressure | 6900 kPa and 24822 kPa |
Gear box
Transmission type | powershift transmission and 4 forward / 3 reverse gears proportional with electronic control module |
Forward gears number | 4 and 4 |
Reverse gears number | 3 and 3 |
Images
Sizes
6. Hinge axis maximum height | 3843 mm | 6. Hinge axis maximum height | 3830 mm |
8. Radius at maximum lifting and unloading | 1077 mm | 8. Radius at maximum lifting and unloading | 1013 mm |
1. Length with bucket on ground level | 7343 mm | 1. Length with bucket on ground level | 7384 mm |
2. Between tyres width | 2674 mm | 2. Between tyres width | 2523 mm |
3. Height to cab upper part | 3356 mm | 3. Height to cab upper part | 3395 mm |
4. Wheelbase | 3020 mm | 4. Wheelbase | 2900 mm |
5. Clearance | 397 mm | 5. Clearance | 370 mm |
Shovel
7. Unloading ground clearance at maximum lifting | 2771 mm | 7. Unloading ground clearance at maximum lifting | 2801 mm |