Komatsu WA500-8 LARGE WHEEL LOADERS
Product Feature
Dual-Mode Engine Power Select System
This wheel loader offers two selectable operating modes
— Power (P) and Economy (E).
• P Mode: This mode provides maximum power output for
hard- digging operation or hill climbing.
• E Mode: This mode provides maximum fuel efficiency for
general loading.
Automatic Digging System
The new automatic digging system actuates the bucket tilt and lifting operations by sensing the pressure applied to the work equipment. This system can alleviate operator's fatigue and optimize bucket load. This system is activated through the LCD color monitor panel.
New Operator Seat with Electronic Pilot Control (EPC) Levers
A new standard, heated, air-suspension seat provides enhanced support on rough roads and dampens machine vibrations, providing a more comfortable ride for the operator. An EPC-lever console is built into, and moves with, the seat. The angle of the armrest is fully adjustable for optimum operator comfort. A secondary F-N-R switch is incorporated in to work equipment lever configurations.
Operator Identification Function
An operator identification (ID) code can be set for each operator, and used to manage operation information of individual machines through KOMTRAX. Data sent from KOMTRAX can be used to analyze operation status by operator job, as well as by machine.
Komatsu SmartLoader Logic
The WA500-8 features Komatsu SmartLoader Logic, which controls engine torque to match machine demands. For example, engine torque needs are higher for digging in V-shape loading, but lower when driving with an empty bucket. This system optimizes the engine torque for all applications to minimize fuel consumption. Komatsu SmartLoader Logic functions automatically and doesn’t interfere with operation, saving fuel without decreasing production.
Large-Capacity Torque Converter
The Komatsu-designed power train features a large capacity torque converter for optimum efficiency. The WA500-8 has improved efficiency in V-shape loading applications because the increased tractive effort does not require full throttle. The large capacity torque converter allows the loader to up-shift gears faster for improved acceleration and hill climbing ability. The WA500-8 achieves high gear ranges and maintains high travel speed when working in load-and-carry applications. In most applications, production is increased and fuel consumption is reduced, resulting in improved fuel efficiency.
Standard Rear View Monitoring System
The dedicated, full-color monitor on the right side of the cab provides the operator with a rear view of the machine. This monitor can be always on or only on when the loader shifts into reverse. Guidelines provide the operator with visual cues for the width of the loader.
Remote Bucket and Boom Positioner
The operator can set the bucket angle and remote boom positioner from the cab. Both upper and lower boom limits are adjustable in the cab with the push of a button. The bucket positioner can store three horizontal settings, allowing the operator to easily change attachments without resetting the bucket level position.
Komatsu Integrated Load Meter System
The integrated load meter system displays information directly to the machine’s main monitor display and information is also available remotely via KOMTRAX. Load sub total and cancel functions are performed with buttons integrated to the machine work levers.
Swing-Out Type Cooling Fan and Wider Core Radiator
The cooling fan swings out for easier cleaning. The coolers feature wider-spaced cooling fins to reduce clogging.
Product Parameter
Drive system | Four-wheel drive | |
Front | Fixed, full-floating | |
Rear | Center-pin support, full-floating, 20° 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 |
Model | Komatsu SAA6D140E-7* | |
Type | Water-cooled, 4-cycle | |
Aspiration | Variable geometry turbo-charged, after-cooled, cooled EGR | |
Number of cylinders | 6 | |
Bore x Stroke | 140 mm x 165 mm | 5.51" x 6.50" |
Piston displacement | 15.24 ltr | 930 in³ |
Governor | All-speed, electronic | |
Horsepower: | ||
SAE J1995 - Gross | 266 kW | 357 HP |
ISO 9249 / SAE J1349 - Net | 263 kW | 353 HP |
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 Final emissions certified |
Steering system: | ||
Hydraulic pump | Piston pump | |
Capacity at rated rpm | 120 ltr/min | 31.7 U.S. gal/min |
Relief valve setting | 24.5 MPa / 250 kgf/cm² | 3,555 psi |
Hydraulic cylinders: | ||
Type | Double-acting, piston type. | |
Number of cylinders | 2 | |
Bore x stroke | 100 mm x 486 mm | 3.9" x 19.1" |
Loader control: | ||
Hydraulic pump | Piston pump | |
Capacity at rated rpm | 320 ltr/min | 84.8 U.S gal/min |
Relief valve setting | 34.3 MPa / 350 kgf/cm² | 4,980 psi |
Hydraulic cylinders: | ||
Type | Double-acting, piston type. | |
Number of cylinders: | Bore x Stroke: | Bore x Stroke: |
Boom cylinder / 2 | 160 mm x 898 mm | 6.3" x 35.4" |
Bucket cylinder / 1 | 185 mm x 675 mm | 7.3" x 26.6" |
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 | 110 ltr | 29.1 U.S. gal |
Fuel tank | 473 ltr | 124.9 U.S. gal |
Engine | 37 ltr | 9.8 U.S. gal |
Hydraulic system | 337 ltr | 89.0 U.S. gal |
Axle (each front and rear) | 95 ltr | 25.1 U.S. gal |
Torque converter and transmission | 71 ltr | 18.8 U.S. gal |
DEF tank | 36 ltr | 9.5 U.S. gal |
Type | Articulated type, fully-hydraulic power steering | |
Steering angle | 36° (40° to max end stop) | |
Minimum turning radius at the center of outside tire | 7050 mm | 23' 2" |
Torque converter | three-elements, one-stage, two-phase | |
Transmission | Full-powershift, planetary type | |
Travel speed: (Measured with 23.5-25 tires) | Forward | Reverse |
1st gear | 7.5 km/h 4.7 mph |
8.5 km/h 5.3 mph |
2nd gear |
12.9 km/h 8.0 mph |
12.9 km/h 8.0 mph |
2nd gear (Lock-up clutch ON) | 13.1 km/h 8.1 mph |
13.1 km/h 8.1 mph |
3rd gear | 22.2 km/h 13.8 mph |
24.7 km/h 15.3 mph |
3rd gear (Lock-up clutch ON) | 23.7 km/h 14.7 mph |
26.6 km/h 16.5 mph |
4th gear | 35.5 km/h 22.1 mph |
38.0 km/h 23.6 mph |
4th gear (Lock-up clutch ON) | 37.3 km/h 23.2 mph |
38.0 km/h 23.6 mph |