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- John Deere 644K Powerllel with Q coupling and forks vs. Clark Michigan 45C
John Deere 644K Powerllel with Q coupling and forks vs. Clark Michigan 45C
20 reasons to buy John Deere 644K Powerllel with Q coupling and forks:
Sizes
Clearance | 461 mm and 380 mm | 18 % more or 81 mm |
Radius at maximum lifting and unloading | 1200 mm and 894 mm | 25 % more or 306 mm |
Shovel
Bucket capacity with top | 3 m3 and 1.4 m3 | 53 % more or 1.6 m3 |
Brimmed bucket capacity | 2.6 m3 and 1.1 m3 | 58 % more or 1.5 m3 |
Unloading ground clearance at maximum lifting | 2790 mm and 2725 mm | 2 % more or 65 mm |
Operation
Fuel Capacity | 352 l. and 151 l. | 57 % more or 201 l. |
Engine oil volume | 24.5 l. and 13 l. | 47 % more or 11.5 l. |
Transmission fluid volume | 23 l. and 18.9 l. | 18 % more or 4.1 l. |
Front axle / differential fluid volume | 22 l. and 11 l. | 50 % more or 11 l. |
Rear axle / differential fluid volume | 22 l. and 11 l. | 50 % more or 11 l. |
Static tipping weight | 13170 kg and 5792.8 kg | 56 % more or 7377.2 kg |
Turn radius | 5570 mm and 5700 mm | 2 % less or 130 mm |
Generator current strength | 80 amperes and 70 amperes | 12 % more or 10 amperes |
Motor
Displacement | 6.8 l. and 5.8 l. | 15 % more or 1.0 l. |
Maximum torque | 1016 Nm and 512.5 Nm | 50 % more or 503.5 Nm |
Effective power | 173 kW and 81.3 kW | 53 % more or 91.7 kW |
Hydraulic system
Pump bandwidth | 310 l/min and 128 l/min | 59 % more or 182 l/min |
Lowering time | 2.8 sec and 3.5 sec | 20 % less or 0.7 sec |
Gear box
Maximum forward speed | 36.6 km/h and 28.8 km/h | 21 % more or 7.8 km/h |
Forward gears number | 4 and 3 | 25 % more or 1 |
7 reasons to buy Clark Michigan 45C:
Shovel
Breakout power | 67.4 kN and 118 kN | 43 % less or 50.6 kN |
Operation
Hydraulic system fluid volume | 120 l. and 110 l. | 8 % more or 10 l. |
Cooling system fluid volume | 36 l. and 29.5 l. | 18 % more or 6.5 l. |
Motor
Power measured at | 2500 rev / min and 1700 rev / min | 32 % more or 800 rev |
Hydraulic system
Lifting time | 6 sec and 6.1 sec | 2 % less or 0.1 sec |
Unloading time | 1.5 sec and 1.9 sec | 21 % less or 0.4 sec |
Gear box
Maximum reverse gear | 28.8 km/h and 24.9 km/h | 14 % more or 3.9 km/h |
Neutral reasons:
Sizes
Length with bucket on ground level | 8504 mm and 6425 mm |
Between tyres width | 2875 mm and 2283 mm |
Wheelbase | 3260 mm and 2603 mm |
Hinge axis maximum height | 4117 mm and 3550 mm |
Height to cab upper part | 3430 mm and 3120 mm |
Shovel
Shovel width | 3040 mm and 2500 mm |
Operation
Working weight | 19760 kg and 9703.2 kg |
Rear axle oscillating | 26 degrees and 18 degrees |
Tyre size | 23.5 R25 and 17.5-25 |
Operating voltage | 24 V and 12 V |
Motor
Torque measured at | 1400 rev / min and 1400 rev / min |
Cylinders number | 6 and 6 |
Manufacturer | John Deere and Perkins |
Model | 6068H, III Level III certified and 6.354.4 |
Hydraulic system
Type of pump | variable displacement axial piston pump and gear type pump |
Overflow valve pressure | 25165.8 kPa and 17236.9 kPa |
Gear box
Reverse gears number | 3 and 3 |
Transmission type | Powershift transmission of intermediate type and clark Powershift transmission of intermediate type |
Images
Sizes
2. Between tyres width | 2875 mm | 2. Between tyres width | 2283 mm |
3. Height to cab upper part | 3430 mm | 3. Height to cab upper part | 3120 mm |
4. Wheelbase | 3260 mm | 4. Wheelbase | 2603 mm |
5. Clearance | 461 mm | 5. Clearance | 380 mm |
6. Hinge axis maximum height | 4117 mm | 6. Hinge axis maximum height | 3550 mm |
8. Radius at maximum lifting and unloading | 1200 mm | 8. Radius at maximum lifting and unloading | 894 mm |
1. Length with bucket on ground level | 8504 mm | 1. Length with bucket on ground level | 6425 mm |
Shovel
7. Unloading ground clearance at maximum lifting | 2790 mm | 7. Unloading ground clearance at maximum lifting | 2725 mm |


