Komatsu WA380-8 LARGE WHEEL LOADERS
Product Feature
Enhanced Lock-Up
The Komatsu designed torque converter with lock-up is standard on the WA380-8. The lock-up function activates in 2nd, 3rd and 4th gears. The lock-up torque converter is effective for both load and carry application and V-shape loading which uses lower gears. Komatsu SmartLoader Logic reduces the clutch engagement shock of lock-up by controlling engine torque. The lock-up torque converter combined with Komatsu SmartLoader Logic results in low fuel consumption and high travel speeds in load and carry and even some V-cycle loading applications.
High Resolution 7-inch Color LCD Monitor
The machine monitor display various machine information and allows for various settings of the machine. The LCD monitor is a 7-inch color TFT-LCD and displays maintenance information, operation record, Ecology Guidance record, and other machine data. The switch panel is used to select various screens and the air conditioner control screen. By using the switch panel, you can display various user menus on the LCD screen and adjust the machine settings.
Komatsu Auto Idle Shutdown
In order to reduce idle time and save fuel cost, the Komatsu Auto Idle Shutdown function will shut the engine off and apply the parking brake and hydraulic lock after a preset idle time limit. This time limit can be set by the operator or service technician and may range from 3 minutes to 60 minutes.
Large-Capacity Torque Converter
The Komatsu designed power train has a large capacity torque converter for optimum efficiency. The WA380-8 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 WA380-8 to up-shift gears faster because of improved acceleration. The WA380-8 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.
Mono Lever with Integrated 3rd Spool Control (option)
The mono lever option has been designed for improved ergonomics and comfort. When equipped with the optional 3rd spool valve, it allows the operator to control the 3rd spool with the thumb. The 3rd spool valve can be operated in either continuous or proportional flow modes. The mono lever also includes a F-N-R switch.
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.
Rear Full Fenders (Standard)
The WA380-8 has a rear full fender as standard. The plastic rear fenders open outward, keeping the force to open the engine doors low, even when there is mud or snow on the fenders. The fenders swing far out of the way to give the technician generous access to the engine compartment. Mud flaps are also included on the rear fenders.
Rear View Monitoring System
The operator can view the rear of the machine with a dedicated full color monitor that is located on the right side of the cab. This monitor can be set to be always on or only on when the loader goes into reverse. Visual reference guidelines offer additional convenience.
Remote Bucket and Boom Positioner
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 bucket positioner can memorize three horizontal settings, allowing the operator to easily change attachments without having to reset the bucket position. In each horizontal setting, the operator can adjust the setting with the switch in the cab. This can help save the operator time when changing attachments.
SmartLoader Logic
The WA380-8 provides Komatsu SmartLoader Logic, an engine control system. This technology creates enough torque for each work phase. For example, engine torque needs are higher for digging in V-shape loading, but less 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 does not interfere with operation, saving fuel without decreasing production.
Swing-out Type Cooling Fan
The cooling fan swings out from the engine compartment for ease of cleaning. The coolers feature wider spacing of the cooling fins to reduce clogging. Auto-reversing intervals for the fan can be customized through the monitor panel.
Variable Displacement Piston Pump & CLSS
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.
Product Parameter
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 |
Model | |
Komatsu SAA6D107E-3* |
Type | |
Water-cooled, 4-cycle |
Aspiration | |
Turbo-charged, after-cooled |
Number of cylinders | |
6 |
Bore x Stroke | 107 mm x 124 mm | 4.21" x 4.88" |
Piston displacement | 6.69 ltr | 408 in3 |
Govenor | |
All-speed, electronic |
Horsepower: | |
|
SAE J1995 - Gross | 143 kW | 192 HP |
ISO 9249 / SAE J1349 - Net | 143 kW | 191 HP |
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 Final emissions certified | |
|
Steering system: | ||
Hydraulic pump | Piston type | |
Capacity at rated rpm | 137 ltr/min | 36.2 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 | 75 mm x 442 mm | 3.0" x 17.4" |
Loader control: | ||
Hydraulic pump | Piston pump | |
Capacity | 205 ltr/min | 54.15 U.S. gal/min |
Relief valve setting | 31.4 MPa / 320 kgf/cm2 | 4,550 psi |
Hydraulic cylinders: | ||
Type | Double-acting, piston type. | |
Number of cylinders: | Bore x Stroke: | Bore x Stroke: |
Boom cylinder / 2 | 130 mm x 713 mm | 5.1" x 28.1" |
Bucket cylinder / 1 | 150 mm x 535 mm | 5.9" x 21.1" |
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 s | |
Dump | 1.8 s | |
Lower (Empty) | 3.3 s |
Cooling system | 60.6 ltr | 16.0 U.S. gal |
Fuel tank | 300 ltr | 79.3 U.S. gal |
Engine | 23 ltr | 6.1 U.S. gal |
Hydraulic system | 142 ltr | 37.5 U.S. gal |
Axle (each front and rear) | 40 ltr | 10.6 U.S. gal |
Torque converter and transmission | 54 ltr | 14.3 U.S. gal |
DEF tank | 36 ltr | 9.5 U.S. gal |
Type | Articulated type, fully-hydraulic power steering | |
Steering angle | 35° (40° to max end stop) | |
Minimum turning radius at the center of outside tire | 6320 mm | 20'9" |
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 |
6.6 km/h 4.1 mph |
7.1 km/h 4.4 mph |
2nd | 11.7 km/h 7.3 mph |
12.4 km/h 7.7 mph |
2nd (Lock-up clutch ON) | 12.4 km/h 7.7 mph |
13.3 km/h 8.3 mph |
3rd | 20.9 km/h 13.0 mph |
22.3 km/h 13.9 mph |
3rd (Lock-up clutch ON) | 22.4 km/h 13.9 mph |
24.1 km/h 15.0 mph |
4th | 36.1 km/h 22.4 mph |
38.6 km/h 24.0 mph |
4th (Lock-up clutch ON) | 37.5 km/h 23.3 mph |
37.5 km/h 23.3 mph |