Komatsu WA480-8 LARGE WHEEL LOADERS
Product Feature
Advanced Joystick Steering System (AJSS)
Allows steering and directional travel to be controlled by wrist and finger control to minimize operator fatigue in high duty cycle applications. AJSS allows for full speed travel speed while maintaining precise steering and control.
Automatic Digging System
Boom and bucket automatically raise, removing the need for operators to move levers to fill the bucket.
New Bucket Design
The newly designed bucket improves overall machine productivity. Generous curves on the side wall and wrap improve pile penetration and make it easy to fill. They also improve material retention in carry operations.
Load Meter (with 2V)
The Load Meter displays what material weighs in the bucket. Only available in two-valve/two-lever machines.
Optional Printer for Load Meter
The printer generates a ticket (or receipt) telling the operator the weight of the material deposited into the loading truck.
New Operator Seat with Electronic Pilot Control (EPC) Levers
A new 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 integrated in the seat 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 work equipment lever configurations. A heated seat is standard.
Tier 4 Final Engine
The Komatsu SAA6D125E-7 engine is EPA Tier 4 Final
emissions certified and provides exceptional performance
while reducing fuel consumption. Based on Komatsu
proprietary technologies developed over many years, this
new diesel engine reduces nitrogen oxides (NOx) by
more than 80% when compared to Tier 4 interim levels.
Product Parameter
Model | |
Komatsu SAA6D125E-7* |
Type | |
Water-cooled, 4-cycle |
Aspiration | |
Turbo-charged, after-cooled, cooled EGR |
Number of cylinders | |
6 |
Bore x stroke | 125 mm x 150 mm | 4.9" x 5.9" |
Piston displacement | 11.04 ltr | 674 in³ |
Governor | |
all-speed, electronic |
Horsepower: | |
|
SAE J1995 - Gross | 244 kW | 301HP |
ISO 9249/SAE J1349 - Net | 223 kW | 299 HP |
Rated rpm | |
2000 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 |
Torque converter: | 3-elements, 1-stage, 2-phase | |
Transmission | Automatic full-powershift, countershaft type | |
Travel speed: (Measured with 26.5-R25 tires) | Forward | Reverse |
1st | 7.3 km/h 4.5 mph |
7.5 km/h 4.7 mph |
2nd | 12.7 km/h 7.9 mph |
13.1 km/h 8.1 mph |
2nd (Lock-up clutch ON) | 13.3 km/h 8.3 mph |
13.8 km/h 8.6 mph |
3rd | 22.2 km/h 13.8 mph |
22.9 km/h 14.2 mph |
3nd (Lock-up clutch ON) | 23.8 km/h 14.8 mph |
24.5 km/h 15.2 mph |
4th | 35.4 km/h 22.0 mph |
36.6 km/h 22.7 mph |
4nd (Lock-up clutch ON) | 38.5 km/h 24.0 mph |
39.0 km/h 24.2 mph |
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, full-hydraulic power steering | |
Steering angle | 35° each direction (40° to max end stop) | |
Minimum turning radius at the center of outside tire | 6630 mm | 21'9" |
Steering system: | |
|
Hydraulic pump | |
Piston pump |
Capacity (at rated rpm) |
195 ltr/min | 51.5 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 | 90 mm x 441 mm | 3.5" x 17.3" |
Loader control: | |
|
Hydraulic pump | |
Piston pump |
Capacity (at rated rpm) |
260 ltr/min | 68.7 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: | |
|
Lift cylinder / 2 | 140 mm x 881 mm | 5.5" x 34.7" |
Bucket cylinder / 1 | 180 mm x 572 mm | 7.1" x 22.5" |
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 | |
6.4s |
Dump | |
1.9 s |
Lower (Empty) | |
3.8 s |
Cooling system | 81 ltr | 21.4 U.S. gal |
Fuel tank | 380 ltr | 100.4 U.S. gal |
Engine | 38 ltr | 10.0 U.S. gal |
Hydraulic system | 173 ltr | 45.7 U.S. gal |
Axle front | 59 ltr | 15.6 U.S. gal |
Axle rear | 59 ltr | 15.6 U.S. gal |
Torque converter and transmission | 65 ltr | 17.2 U.S. gal |
DEF tank |
36 ltr | 9.5 U.S. gal |