Komatsu Wheel Loaders WA500-7
WA500-7 Wheel Loader
Need a Tier 4 interim loader with the power to dig virgin material and still have the speed to load a string of on-highway trucks or load and carry? The WA500-7 is the answer to that question. The Large capacity torque converter and power engine mode provide high tractive effort for filling the bucket. Torque converter lock-up, top speed of 23.2 mph and ergonomic pilot controls provide speed and easy operation.
| Model | Komatsu SAA6D140E-6* | |
| Type | Water-cooled, 4-cycle | |
| Aspiration | Turbo-charged, after-cooled, cooled EGR | |
| Number of cylinders | 6 | |
| Bore x stroke | 5.51" x 6.50" | 140 mm x 165 mm |
| Piston displacement | 930 in³ | 15.24 ltr |
| Governor | All-speed, electronic | |
| Horsepower: | ||
| SAE J1995 / Gross | 357 HP | 266 kW |
| ISO 9249/SAE J1349 / Net | 353 HP | 263 kW |
| Rated rpm | 1900 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 | Full-powershift, planetary type | |
| Travel speed: (Measured with 23.5-25 tires) | Forward | Reverse |
| 1st gear | 4.7 mph 7.5 km/h |
5.3 mph 8.5 km/h |
| 2nd gear | 8.0 mph 12.9 km/h |
8.0 mph 12.9 km/h |
| 2nd gear (Lock-up clutch ON) | 8.1 mph 13.1 km/h |
8.1 mph 13.0 km/h |
| 3rd gear | 13.8 mph 22.2 km/h |
15.3 mph 24.7 km/h |
| 3rd gear (Lock-up clutch ON) | 14.7 mph 23.7 km/h |
16.5 mph 26.6 km/h |
| 4th gear | 22.1 mph 35.5 km/h |
23.6 mph 38.0 km/h |
| 4th gear (Lock-up clutch ON) | 23.2 mph 37.3 km/h |
23.6 mph 38.0 km/h |
| Drive system | Four-wheel drive |
| Front | Fixed, semi-floating |
| Rear | Center-pin support, semi-floating, 24° 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 | 36° (40° to max end stop) | |
| Minimum turning radius at the center of outside tire | 23' 2" | 7050 mm |
| Steering system: | ||
| Hydraulic pump | Piston pump | |
| Capacity at rated rpm | 31.7 U.S. gal/min | 120 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 | 3.9" x 19.1" | 100 mm x 486 mm |
| Loader control: | ||
| Hydraulic pump | Piston pump | |
| Capacity at rated rpm | 84.8 U.S gal/min | 320 ltr/min |
| Relief valve setting | 4,980 psi | 34.3 MPa / 350 kgf/cm² |
| Hydraulic cylinders: | ||
| Type | Double-acting, piston type | |
| Number of cylinders: | Bore x Stroke: | Bore x Stroke: |
| Boom cylinder / 2 | 6.3" x 35.4" | 160 mm x 898 mm |
| Bucket cylinder / 1 | 7.3" x 26.6" | 185 mm x 675 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 | 7.2 sec | |
| Dump | 1.7 sec | |
| Lower (Empty) | 4.2 sec |
| Cooling system | 35.1 U.S. gal | 133 ltr |
| Fuel tank | 124.9 U.S. gal | 473 ltr |
| Engine | 9.8 U.S. gal | 37 ltr |
| Hydraulic system | 89.0 U.S. gal | 337 ltr |
| Axle (each front and rear) | 25.1 U.S. gal | 95 ltr |
| Torque converter and transmission | 18.8 U.S. gal | 71 ltr |
