Global-CE > Wheel Loader > KOMATSU Wheel Loader > Komatsu WA800-3 MINING WHEEL LOADERS
Komatsu WA800-3 MINING WHEEL LOADERS

Komatsu WA800-3 MINING WHEEL LOADERS

BucketCapacityMax:
18.3
BucketCapacityMin:
13.1
Horsepower:
808 @2000 rpm
OperatingWeightMax:
230380
OperatingWeightMin:
224650
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Product Feature

Adjustment-Free Braking System

Wet multi-disc service brakes and fully hydraulic braking system mean lower maintenance costs and higher reliability. Wet disc brakes are fully sealed, helping keep contaminants out, reducing wear and maintenance. Brakes are adjustment-free, meaning even lower maintenance. Reliability is designed into the braking system by the use of two independent hydraulic circuits. This provides hydraulic backup should one of the circuits fail. Fully hydraulic brakes mean no air system to bleed, or the condensation of water in the system that can lead to contamination, corrosion, and freezing.

Advanced Joystick Steering System

AJSS is a feedback steering system which has been incorporated to allow steering and forward and reverse selection to be controlled by wrist and finger control. With the feedback function, the machine steering angle is exactly the same angle as the lever tilt angle.

Dual-Mode Active Working System

The machine is equipped with a two mode active working system. This system provides the most efficient hydraulic flow for your operation. The active working switch has two modes: Powerful Loading or Normal Loading.

Durable Buckets

Komatsu buckets are manufactured using high-tensile strength steel with replaceable welded wear plates for extended bucket life. Additional strength has been added to the bucket bottom corners, side edges, and spill guard ends for increased durability.

Excellent Stability

The WA800-3 has the widest tread in its class 11'0" / 3,350 mm and a long 17'11'' / 5,450 mm wheelbase, for maximum machine stability.

High Breakout Force

Komatsu wheel loaders have high-tensile steel Z-bar loader linkages for maximum rigidity and maximum breakout force. Sealed loader linkage pins extend greasing intervals.

High-rigidity Frames and Loader Linkage

The front and rear frames and the loader linkage have more torsional rigidity to secure resistance against increased stress. Frame and loader linkage are designed to accommodate actual working loads, and simulated computer testing proves its strength.

Large Dumping Clearance

The WA800-3 was designed with ample dumping clearance for dump truck matching.

Rear Access Stairs

For the purpose of boarding and exiting the machine, rear access stairs with handrail are provided. The step width clearance and the step angle have been designed for easy entry and exit. A step light is provided for night boarding.

Simple Checks - Easy Maintenance

The main monitor and the maintenance monitor (EDIMOS II) are neatly arranged for a quick, clear reading of machine functions. The main monitor also has a diagnostic function.

Product Parameter

Drive system Four-wheel drive
Front Fixed, full-floating
Rear Center-pin support, full-floating, 22° total oscillation
Reduction gear Spiral bevel gear
Differential gear Straight bevel gear
Final reduction gear Planetary gear, single reduction, oil bath

Service brakes Hydraulically actuated, wet disc brakes actuate on four wheels
Parking brake Dry disc brake
Secondary brake Parking brake is commonly used

Model Komatsu SAA12V140E-3
Type Water-cooled, 4 cycle
Aspiration Turbocharged, air-to-air aftercooled
Number of cylinders 12
Bore x stroke 5.51'' x 6.50'' 140 mm x 165 mm
Piston displacement 1,860 in³ 30.48 ltr
Governor all-speed, electronic
Flywheel horsepower:
SAE J1995 - Gross 853 HP 636 kW
ISO 9249/SAE J1349 - Net 808 PS 603 kW
Rated rpm 2000 rpm
Fan drive method for radiator cooling Mechanical
Fuel system Direct injection
Lubrication system:
Method Gear pump, force-lubrication
Filter Full-flow and bypass combined
Air cleaner Dry type with automatic dust ejector and pre-cleaner, cyclopac with vacuator
EPA Tier 2 emissions certified.

Steering system:
Hydraulic pump Piston pump
Capacity / at rated rpm 81 U.S. gal/min 307 ltr/min
Relief valve setting 4,550 psi 31.4 MPa 320 kgf/cm²
Hydraulic cylinders:
Type Double-acting, piston type
Number of cylinders 2
Bore x stroke 6.3" x 19.8" 160 mm x 503 mm
Loader control:
Hydraulic pump Piston pump
Capacity / at rated rpm 107 U.S. gal/min 405 ltr/min
Relief valve setting 4,550 psi 31.4 MPa
320 kgf/cm²
Hydraulic cylinders:
Type Double-acting, piston type
Number of cylinders—bore x stroke:
Boom cylinder - 2 10.2" x 53.9" 260 mm x 1368 mm
Bucket cylinder - 1 11.8" x 35.7" 300 mm x 906 mm
Control valve Spool type
Control positions:
Boom Raise, hold, lower, and float
Bucket Tilt-back, hold, and dump
Hydraulic cycle time (rated load in bucket):
Raise 11.2 sec
Dump 2.0 sec
Lower (Empty) 4.8 sec

The cab is mounted on viscous damping mounts and is well insulated.


Cooling system 89.0 U.S. gal 337 ltr
Fuel tank 410.8 U.S. gal 1555 ltr
Engine 34.3 U.S. gal 130 ltr
Hydraulic system 191.5 U.S. gal 725 ltr
Axle (each front and rear) 95.1 U.S. gal 360 ltr
Torque converter and transmission 37.0 U.S. gal 140 ltr

Type Articulated type, full-hydraulic power steering
Steering angle 40° each direction
Minimum turning radius at the center of outside tire 30'2" 9200 mm

Torque converter - Type 3-element, single-stage, single-phase
Transmission - Type Full-powershift, planetary type
Travel Speed*
1st Forward 4.3 mph 7.0 km/h
1st Reverse 4.4 mph 7.1 km/h
2nd Forward 7.6 mph 12.3 km/h
2nd Reverse 7.7 mph 12.4 km/h
3rd Forward 17.4 mph 28.0 km/h
3rd Reverse 17.6 mph 28.3 km/h
*Measured with 45/65-45, 46PR (L-5)

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