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Komatsu WA380-8 LARGE WHEEL LOADERS

Komatsu WA380-8 LARGE WHEEL LOADERS

BucketCapacityMax:
4.3
BucketCapacityMin:
3.5
Horsepower:
191 @2100 rpm
OperatingWeightMax:
41932
OperatingWeightMin:
40532
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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

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