Komatsu Wheel Loaders WA380-7
WA380-7 Wheel Loader
The Tier 4 interim WA380-7 will save you 10% on your fuel bill over the previous model. Two engine power modes, power and economy, let the operator match his work mode to the job at hand. The large capacity torque converter with enhanced lock-up gives the WA380-7 terrific digging power in the pile and climbing ability. SmartLoader Logic ensure that the WA380-7 works most efficiently under low demand conditions to ensure further energy and fuel savings.
| Model | Komatsu SAA6D107E-2* | |
| Type | Water-cooled, 4-cycle | |
| Aspiration | Turbo-charged, after-cooled, cooled EGR | |
| Number of cylinders | 6 | |
| Bore x stroke | 4.21" x 4.88" | 107 mm x 124 mm |
| Piston displacement | 408 in3 | 6.69 ltr |
| Governor | All-speed, electronic | |
| Horsepower: | ||
| SAE J1995 / Gross | 192 HP | 143 kW |
| ISO 9249/SAE J1349 / Net | 191 HP | 142 kW |
| Rated rpm | 2100 rpm | |
| Fan drive method for radiator cooling | Hydraulic | |
| Fuel system | Direct injection | |
| Lubrication system: | ||
| Method | Gear pump, force-lubrication | |
| Filter | Full-flow type | |
| Air cleaner | Dry type with double elements and dust evacuator, plus dust indicator | |
| *EPA Tier 4 Interim and EU stage 3B emissions certified |
| Torque converter | 3-elements, 1-stage, 2-phase | |
| Transmission | Automatic, full-poweshift, counter-shaft type | |
| Travel speed: (Measured with 23.5-25 tires) | Forward | Reverse |
| 1st gear | 4.1 mph 6.6 km/h |
4.4 mph 7.1 km/h |
| 2nd gear | 7.3 mph 11.7 km/h |
7.7 mph 12.4 km/h |
| 2nd gear (Lock-up clutch ON) | 7.7 mph 12.4 km/h |
8.3 mph 13.3 km/h |
| 3rd gear | 13.0 mph 20.9 km/h |
13.9 mph 22.3 km/h |
| 3rd gear (Lock-up clutch ON) | 14.0 mph 22.5 km/h |
15.0 mph 24.1 km/h |
| 4th gear | 22.4 mph 36.1 km/h |
24.0 mph 38.6 km/h |
| 4th gear (Lock-up clutch ON) | 24.9 mph 40.0 km/h |
24.9 mph 40.0 km/h |
| Drive system | Four-wheel drive |
| Front | Fixed, semi-floating |
| Rear | Center-pin support, semi-floating, 26° total oscillation |
| Reduction gear | Spiral bevel gear |
| Differential gear | Conventional type |
| Final reduction gear | Planetary gear, single reduction |
| Service brakes | Hydraulically-actuated, wet disc brakes actuate on four wheels. |
| Parking brake | Wet disc brake |
| Emergency brake | Parking brake is commonly used |
| Type | Articulated type, fully-hydraulic power steering | |
| Steering angle | 35° (40° to max end stop) | |
| Minimum turning radius at the center of outside tire | 20'9" | 6320 mm |
| Steering system: | ||
| Hydraulic pump | Piston pump | |
| Capacity at rated rpm | 36.2 U.S. gal/min | 137 ltr/min |
| Relief valve setting | 3,555 psi | 24.5 MPa / 250 kgf/cm2 |
| Hydraulic cylinders: | ||
| Type | Double-acting, piston type. | |
| Number of cylinders | 2 | |
| Bore x stroke | 3.0" x 17.4" | 75 mm x 442 mm |
| Loader control: | ||
| Hydraulic pump | Gear type pump | |
| Capacity at rated rpm | 54.13 U.S. gal/min | 204.9 ltr/min |
| Relief valve setting | 4,550 psi | 31.4 MPa / 320 kgf/cm2 |
| Hydraulic cylinders: | ||
| Type | Double-acting, piston type | |
| Number of cylinders | bore x stroke | bore x stroke |
| Lift cylinder - 2 | 5.1" x 28.1" | 130 mm x 713 mm |
| Bucket cylinder - 1 | 5.9" x 21.1" | 150 mm x 535 mm |
| Control valve | 2-spool type | |
| Control positions: | ||
| Boom | Raise, hold, lower, and float | |
| Bucket | Tilt-back, hold, and dump | |
| Hydraulic cycle time (rated load in bucket): | ||
| Raise | 5.9 sec | |
| Dump | 1.8 sec | |
| Lower (Empty) | 3.3 sec |
| Cooling system | 14.4 U.S. gal | 54.4 ltr |
| Fuel tank | 79.3 U.S. gal | 300 ltr |
| Engine | 6.1 U.S. gal | 23 ltr |
| Hydraulic system | 37.5 U.S. gal | 142 ltr |
| Axle (each front and rear) | 10.6 U.S. gal | 40 ltr |
| Torque converter and transmission | 14.3 U.S. gal | 54 ltr |
