Operating Weight | |
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Rated power | 357 HP 266 kW |
The WA500-7 provides Komatsu SmartLoader Logic, a new engine control system. This technology acquires data from various sensors in the vehicle and controls the engine to yield enough torque for each work phase. Engine torque requirements for a wheel loader vary depending on working conditions. For example, the loader requires higher torque for digging in V-shape loading, but less torque when traveling with an empty bucket. This technology limits the engine torque during less demanding work, therefore saving fuel. Komatsu SmartLoader Logic functions automatically and doesn’t interfere with operation, saving fuel without decreasing production.
The WA500-7 power train has a large capacity torque converter for optimum efficiency. The WA500-7 has greater productivity in V-shape loading applications because the increased tractive effort does not require full throttle. The improved hill climbing ability allows the WA500-7 to up-shift gears faster because of improved acceleration. The WA500-7 can achieve higher gear ranges and maintain higher 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.
The large-capacity torque converter with lock-up is standard on the WA500-7. The lock-up function activates in 2nd, 3rd and 4th gears to give the loader a maximum travel speed of 37.3 km/h 23.2 mph. The large capacity torque converter with enhanced lock-up is effective for both load and carry applications, and V-shape loading which uses lower gears. The enhanced lock-up reduces the clutch engagement shock by controlling engine torque with Komatsu SmartLoader Logic improving operator comfort. The enhanced lock-up combined with Komatsu SmartLoader Logic results in lower fuel consumption and higher travel speeds in load and carry and even some cycle loading applications.
Komatsu added many new features on the WA500-7 to reduce fuel consumption. These features enable further fuel efficiency by optimally controlling engine power and matching the Komatsu designed and produced high efficiency power train components and hydraulic system.
This wheel loader offers two selectable operating modes — E and P.
This mode provides maximum fuel efficiency for general loading.
This mode provides maximum power output for hard digging operations or hill climb applications.
The variable displacement piston pump combined with the Closed-center Load Sensing System (CLSS) delivers as much hydraulic flow as the job requires, preventing wasted hydraulic flow. Minimized loss contributes to better fuel economy.
The work equipment control system has an EPC lever console integrated into the higher capacity seat and moves with the seat. The angle of the armrest is fully adjustable for optimum operator comfort. An F-N-R switch is now incorporated in dual and three lever configurations as well as the optional monolever configurations. A heated seat is now standard.
The operator can view the rear of the machine with a full color monitor that is located on the right side of the cab. This monitor can be always on or only on when the loader goes into reverse. Visual guidelines can also be added for more convenience.
The operator can set the bucket angle and remote boom positioner from the cab. Both upper and lower boom positions are adjustable in the cab with the push of a button.
The Electronically Controlled Suspension System (ECSS) or ride control system uses an accumulator which absorbs some of the shock in the boom arm, giving the operator a much smoother ride. This reduces operator fatigue and reduces material spillage during load and carry operations. ECSS is speed sensitive, meaning that the boom won’t move during stationary digging. ECSS is standard on the WA500-7.
The large gull-wing type engine doors are operated with low effort assisted by gas springs. The doors open in two steps. The first position is for daily maintenance and the second position is for periodic maintenance. Large steps are provided on each side of the frame to help access.
The large capacity cooling unit features a wider spacing of the cooling fins to reduce clogging. The hydraulic driven cooling fan can be opened for cleaning.
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 |
Govenor | 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 |
KOMATSU
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E-mail :
Web Site : https://home.komatsu/en/
Address :
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