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Surface mining wheel loader

WA800-8

  • Horsepower 637 kW @ 2 025 rpm 854 net HP @ 2,025 rpm
  • Operating weight 115 530 kg 254,700 lbs.
  • Bucket capacity 11.5 m³ 15.0 yd³

Ready for your harsh digging environment

Built for power, breakout force and stability. The z-bar loader linkage provides excellent breakout force for tough digging applications. The operator’s environment is designed with ergonomics in mind to keep your team productive, efficient and comfortable.

  • Up to 18% more fuel-efficient*
  • Up to 10% reduction in fuel consumption*
  • Up to 6% more productive*
  • *All comparisons and claims of improved performance made herein are made with respect to the prior Komatsu model unless otherwise specifically stated. Materials and specifications are subject to change without notice.

Features and benefits

Designed for harsh digging environments

Excellent breakout force for tough digging applications with a reinforced z-bar loader linkage

Obstacle detection

All-around monitoring system for your operator. KomVision uses six cameras and four radar panels to provide an audible and visual alert when an obstacle is detected in the working area.

Simple, predictable operation

Advanced Joystick Steering System (AJSS) and Electronic Pilot Controls (EPC) levers provide comfortable, simple operation throughout long shifts of loading. The new cab also features an air suspension, heated and ventilated operator seat and trainer seat.

Helps operators perform efficiently

Features automate phases when v-cycle loading haul trucks. When used together, haul trucks can be loaded by controlling the travel path and pressing one button to initiate dumping. Newer operators can produce sooner, and veteran personnel maintain their efficiency.

Variable traction control system

The maximum rim-pull can be adjusted from 100% to 20%, depending on ground conditions. This features also controls tire slippage and is designed to limit your operation costs.

Throttle lock with auto-deceleration

Engine RPM can be set to a constant speed in the cab for fast work equipment speeds and quick cycle times. Auto-Deceleration automatically reduces engine RPM to 680 if no operator command is sensed after 10 seconds for additional fuel savings.

Fast work speeds with a smooth approach

A smooth approach for your operators when loading haul trucks, as well as simple control of tire slippage and shock reduction when shifting from forward to reverse. Modulation clutch adjusts the tractive effort using the left brake pedal from 100% to 20% of the torque converter output.

Better travel performance

Manage operator fatigue and material spillage. The electronically controlled suspension system (ECSS) accumulators absorb the shock from the boom when in load-and-carry applications or tramming around the site, limiting operator fatigue and material spillage.

Improved visibility

With 22 LED work lamps, your operators will have excellent visibility and bright lighting to help them perform at their best in tough working conditions.

Ground-level service center

Fill and drains for the transmission oil, hydraulic oil, engine oil, and coolant are accessible at the ground level service center, limiting the time scheduled for preventative maintenance services.

SmartLoader Logic

Efficient fuel consumption while sustaining production. SmartLoader Logic senses the power requirement of each work phase and automatically changes between Economy and Power Mode based on the application demand.

Integrated Load Meter

Informed operational decisions Information at your fingertips. The integrated payload meter system displays payload data directly on the monitor panel. This data is also accessible remotely via Komtrax Plus.

Specifications for WA800-8

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US system Metric
Engine
Model Komatsu SAA12V140E-7*
Type Water-cooled, 4 cycle
Aspiration Turbo-charged, after-cooled, cooled EGR
Number of cylinders 12
Bore x stroke 140 x 165 mm
Piston displacement 30.48 L
Governor all-speed, electronic
Horsepower:
 
    SAE J1995 - Gross 638 kW
    ISO 9249/SAE J1349 - Net 637 kW
    Rated rpm 2 025 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

Model Komatsu SAA12V140E-7*
Type Water-cooled, 4 cycle
Aspiration Turbo-charged, after-cooled, cooled EGR
Number of cylinders 12
Bore x stroke 5.51 x 6.50 in
Piston displacement 1,860 in³
Governor all-speed, electronic
Horsepower:
 
    SAE J1995 - Gross 856 HP
    ISO 9249/SAE J1349 - Net 854 HP
    Rated rpm 2,025 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

Transmission

Torque converter: Three-elements, one-stage, one-phase

Transmission: Full-powershift, planetary type 

Travel speed
 
    1st Forward 7.6 kph
    1st Reverse* 7.9 kph
    2nd Forward 11.9 kph
    2nd Reverse* 12.1 kph
    3rd Forward 22.5 kph
    3rd Reverse* 22.7 kph

*P-mode

Measured with 45/65-R45 tires

Torque converter: Three-elements, one-stage, one-phase

Transmission: Full-powershift, planetary type 

Travel speed
 
    1st Forward 4.7 mph
    1st Reverse* 4.9 mph
    2nd Forward 7.4 mph
    2nd Reverse* 7.5 mph
    3rd Forward 14.0 mph
    3rd Reverse* 14.1 mph

*P-mode

Measured with 45/65-R45 tires

Axles and Final Drives
Drive system
Four-wheel drive
Front
Fixed, full-floating
Rear
Center-pin support, full-floating, 20° total oscillation
Reduction gear
Spiral bevel gear
Differential gear
Conventional type
Final reduction gear
Planetary gear, single reduction
Drive system
Four-wheel drive
Front
Fixed, full-floating
Rear
Center-pin support, full-floating, 20° total oscillation
Reduction gear
Spiral bevel gear
Differential gear
Conventional type
Final reduction gear
Planetary gear, single reduction
Brakes
Service brakes Hydraulically actuated, wet multiple-disc brakes actuate on four wheels
Parking brake Wet multiple-disc brake
Service brakes Hydraulically actuated, wet multiple-disc brakes actuate on four wheels
Parking brake Wet multiple-disc brake
Steering System
Type Articulated type, fully-hydraulic power steering
Steering angle 40° each direction
Minimum turning radius at
the center of outside tire
9 880 mm
Type Articulated type, fully-hydraulic power steering
Steering angle 40° each direction
Minimum turning radius at
the center of outside tire
32 ft. 5 in
Hydraulic System
Steering system:
Hydraulic pump Piston pump
Capacity / at rated rpm 2 x 220 L/min
Relief valve setting 31.4 MPa 320 kgf/cm2
Hydraulic cylinders:  
    Type Double-acting, piston type
    Number of cylinders 2
    Bore x stroke 160 x 576 mm
Work Equipment control:
Hydraulic pump Piston pump
Capacity / at rated rpm 4 x 230 L/min
Relief valve setting 31.4 MPa / 320 kgf/cm²
Hydraulic cylinders:  
    Type Double-acting, piston type
    Number of cylinders—bore x stroke:
 
        Boom cylinder - 2 260 x 1495 mm
        Bucket cylinder - 1 300 x 995 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 10.2 s
    Dump 3.1 s
    Lower (Empty) 4.9 s
Steering system:
Hydraulic pump Piston pump
Capacity / at rated rpm 2 x 58.1 US gpm
Relief valve setting 4,554 psi
Hydraulic cylinders:  
    Type Double-acting, piston type
    Number of cylinders 2
    Bore x stroke 6.3 x 22.7 in
Work Equipment control:
Hydraulic pump Piston pump
Capacity / at rated rpm 4 x 60.8 US gpm
Relief valve setting 4,554 psi
Hydraulic cylinders:  
    Type Double-acting, piston type
    Number of cylinders—bore x stroke:
 
        Boom cylinder - 2 10.2 x 58.9 in
        Bucket cylinder - 1 11.8 x 39.2 in
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 10.2 s
    Dump 3.1 s
    Lower (Empty) 4.9 s
Service Refill Capacities
Cooling system 370 L
Fuel tank 1555 L
Engine 120 L
Hydraulic system 1020 L
Axle (each front and rear) 370 L
Torque converter and transmission 180 L
Cooling system 97.7 US gal
Fuel tank 410.8 US gal
Engine 31.7 US gal
Hydraulic system 269.5 US gal
Axle (each front and rear) 97.7 US gal
Torque converter and transmission 47.6 US gal

ENGINE AND RELATED COMPONENTS

  • Air Cleaner, Double Element with Dust Indicator and Evacuator
  • Engine, KOMATSU SAA12V140E-7, 12 Cylinder, Turbocharged, After Cooled, Diesel
    Gross HP: 638kW / 2025 RPM (SAE J1995)
    Net HP: 637kW / 2025 RPM (ISO 9249 / SAEJ1349)
  • Engine Pre-lubrication System
  • Exhaust Pipe Glasswooled with 2 x KDPF/KDOC
  • Fuel Pre-Filter with Water Separator
  • Hydraulic Cooling Fan, Reversible, Swing Out
  • Radiator, Modular Core, Swing Out Lattice Type Mask

ELECTRICAL SYSTEM

  • Access Stair Lamps, (1 RH & 2 LH)
  • Alternator, 24V (140 Ampere)
  • Back-up Alarm
  • Back-up Lights, Rear, LED
  • Batteries, 4 x 12V, (160Ah)
  • Beacon, Amber Color
  • Circuit Breaker
  • Emergency Stop Switches, Ground Level (RH & LH)
  • Heavy Duty Wiring Harness
  • Horn, Electric
  • Instrument Monitor Panel, Multi Color Display
  • Secondary Shutdown Switch, Engine, Cab Mounted
  • Starting Motors, 11kW / 2 x 24V, Direct Electric
  • Stop and Tail Lights, LED
  • Turn Signals, (2 Front, 2 Rear) with Hazard Switch, LED
  • Work Lamps, LED, 22:
    6 Front Work Lamps (3 RH & 3 LH)
    6 Rear Work Lamps (3 RH & 3 LH)
    4 Side Work Lamps (2 RH & 2 LH)
    2 Axle Mounted Work Lamps (Front)
    4 Cab Mounted Work Lamps (2 Front & 2 Rear)

POWER TRAIN & CONTROLS

  • 3rd gear prohibition and speed limit control
  • Brake Cooling
  • Brake, Parking, Wet Multiple Disc, SAHR
  • Brakes, Service, Wet Multiple Disc, Sun Gear
  • Powertrain Underguard
  • Secondary Steering (ISO 5010)
  • Steering, Advanced Joystick Steering System (AJSS)
  • Transmission, 3-speed Planetary Automatic Powershift Modulation Clutch Kickdown, Automatic and Manual Control
  • Throttle Lock with Auto Deceleration
  • Variable Traction Control System

OPERATOR ENVIRONMENT

  • 45 Degree Stairways (LH & RH)
  • Access Ladder (LH & RH)
  • Cab, Steel, LH Entrance, ROPS/FOPS (ISO 3471/ISO 3449) 2 x DC12V Outlets, Auto Air Conditioner, Heater, Defroster (Front & Rear), Blinds, Front & Rear with Roll Curtains, Ecology Guidance, Ecology Gauge Lever, Machine Lockout
  • Main Monitor - Multi Color Electronic Display Onboard Diagnostics
  • Power Windows
  • Radio, AM/FM with Bluetooth
  • Rearview Mirrors, RH & LH, Heated
  • Rearview Camera Monitoring System (Dedicated Monitor)
  • Room/Spot Lamps, LED
  • Seat, Air Suspension, Reclining, Heated / Ventilated
  • Seat Belt, 3" Retractable, Lap Belt with Detachable Shoulder Harness
  • Secondary Door, RH
  • Sunvisor
  • Trainer Seat with Retractable Lap Belt
  • Wiper/Washer Front (Intermittent), Side, Rear (Intermittent)

MAINTENANCE

  • Anchor Points, Tie Off Type
  • Battery Isolator, Lockable
  • Engine Bay Lamps, LED
  • Fast Fuel System
  • Ground Level Service Center: Grease Gauge, Indicator Lamp, Refill Port, Centralized KOWA Sampling Fluids Ports, Transmission, Hydraulic & Engine Oil, Torque Converter & Engine Coolant
  • Jump Start Receptacle
  • Machine Immobilization Switch, Lockable
  • Starter Isolator, Lockable)

HYDRAULICS & WORK EQUIPMENT

  • 2-spool Valve for Boom and Bucket with Electronic Pilot Controls
  • Automatic Digging System
  • Boom Positioner with Kick-Out
  • Bucket Positioner with Kick-Out
  • Electronically Controlled Suspension System (ECSS)
  • Inline Filters, Steering and Hydraulic
  • Semi-Auto Approach and Dump System
  • Wall Digging Protection Control
  • Work Equipment Shock Reduction Control

OTHER STANDARD EQUIPMENT

  • Auto Idle Shutdown
  • Auto-Lubrication System
  • Front Fenders (LH & RH)
  • Komatsu SmartLoader Logic
  • KOMTRAX Plus
  • Load Meter System
  • Platform, Counterweight with Handrails
  • Platform, Front with Handrails
  • Rims for 45/65-45 Tires
  • Tow Hitch

VANDALISM PROTECTION

  • Battery Box Lock
  • Cap Lock & Cover for Fuel Tank
  • Radiator, Filler Lock and Cover

ENGINE AND RELATED COMPONENTS

  • Air Cleaner, Double Element with Dust Indicator and Evacuator
  • Engine, KOMATSU SAA12V140E-7, 12 Cylinder, Turbocharged, After Cooled, Diesel
    Gross HP: 856 HP / 2025 RPM (SAE J1995)
    Net HP: 854 HP / 2025 RPM (ISO 9249 / SAEJ1349)
  • Engine Pre-lubrication System
  • Exhaust Pipe Glasswooled with 2 x KDPF/KDOC
  • Fuel Pre-Filter with Water Separator
  • Hydraulic Cooling Fan, Reversible, Swing Out
  • Radiator, Modular Core, Swing Out Lattice Type Mask

ELECTRICAL SYSTEM

  • Access Stair Lamps, (1 RH & 2 LH)
  • Alternator, 24V (140 Ampere)
  • Back-up Alarm
  • Back-up Lights, Rear, LED
  • Batteries, 4 x 12V, (160Ah)
  • Beacon, Amber Color
  • Circuit Breaker
  • Emergency Stop Switches, Ground Level (RH & LH)
  • Heavy Duty Wiring Harness
  • Horn, Electric
  • Instrument Monitor Panel, Multi Color Display
  • Secondary Shutdown Switch, Engine, Cab Mounted
  • Starting Motors, 11kW / 2 x 24V, Direct Electric
  • Stop and Tail Lights, LED
  • Turn Signals, (2 Front, 2 Rear) with Hazard Switch, LED
  • Work Lamps, LED, 22:
    6 Front Work Lamps (3 RH & 3 LH)
    6 Rear Work Lamps (3 RH & 3 LH)
    4 Side Work Lamps (2 RH & 2 LH)
    2 Axle Mounted Work Lamps (Front)
    4 Cab Mounted Work Lamps (2 Front & 2 Rear)

POWER TRAIN & CONTROLS

  • 3rd gear prohibition and speed limit control
  • Brake Cooling
  • Brake, Parking, Wet Multiple Disc, SAHR
  • Brakes, Service, Wet Multiple Disc, Sun Gear
  • Powertrain Underguard
  • Secondary Steering (ISO 5010)
  • Steering, Advanced Joystick Steering System (AJSS)
  • Transmission, 3-speed Planetary Automatic Powershift Modulation Clutch Kickdown, Automatic and Manual Control
  • Throttle Lock with Auto Deceleration
  • Variable Traction Control System

OPERATOR ENVIRONMENT

  • 45 Degree Stairways (LH & RH)
  • Access Ladder (LH & RH)
  • Cab, Steel, LH Entrance, ROPS/FOPS (ISO 3471/ISO 3449) 2 x DC12V Outlets, Auto Air Conditioner, Heater, Defroster (Front & Rear), Blinds, Front & Rear with Roll Curtains, Ecology Guidance, Ecology Gauge Lever, Machine Lockout
  • Main Monitor - Multi Color Electronic Display Onboard Diagnostics
  • Power Windows
  • Radio, AM/FM with Bluetooth
  • Rearview Mirrors, RH & LH, Heated
  • Rearview Camera Monitoring System (Dedicated Monitor)
  • Room/Spot Lamps, LED
  • Seat, Air Suspension, Reclining, Heated / Ventilated
  • Seat Belt, 3" Retractable, Lap Belt with Detachable Shoulder Harness
  • Secondary Door, RH
  • Sunvisor
  • Trainer Seat with Retractable Lap Belt
  • Wiper/Washer Front (Intermittent), Side, Rear (Intermittent)

MAINTENANCE

  • Anchor Points, Tie Off Type
  • Battery Isolator, Lockable
  • Engine Bay Lamps, LED
  • Fast Fuel System
  • Ground Level Service Center: Grease Gauge, Indicator Lamp, Refill Port, Centralized KOWA Sampling Fluids Ports, Transmission, Hydraulic & Engine Oil, Torque Converter & Engine Coolant
  • Jump Start Receptacle
  • Machine Immobilization Switch, Lockable
  • Starter Isolator, Lockable)

HYDRAULICS & WORK EQUIPMENT

  • 2-spool Valve for Boom and Bucket with Electronic Pilot Controls
  • Automatic Digging System
  • Boom Positioner with Kick-Out
  • Bucket Positioner with Kick-Out
  • Electronically Controlled Suspension System (ECSS)
  • Inline Filters, Steering and Hydraulic
  • Semi-Auto Approach and Dump System
  • Wall Digging Protection Control
  • Work Equipment Shock Reduction Control

OTHER STANDARD EQUIPMENT

  • Auto Idle Shutdown
  • Auto-Lubrication System
  • Front Fenders (LH & RH)
  • Komatsu SmartLoader Logic
  • KOMTRAX Plus
  • Load Meter System
  • Platform, Counterweight with Handrails
  • Platform, Front with Handrails
  • Rims for 45/65-45 Tires
  • Tow Hitch

VANDALISM PROTECTION

  • Battery Box Lock
  • Cap Lock & Cover for Fuel Tank
  • Radiator, Filler Lock and Cover
  • 11.5 m3 bucket
  • 45/65R45 (L-5) tubeless tires
  • 45 deg Power Staircase
  • Cold weather arrangement (electric heaters for hydraulic oil, transmission oil, engine oil, and coolant)
  • KomVision (with radar)
  • 15.0 yd3 bucket
  • 45/65R45 (L-5) tubeless tires
  • 45 deg Power Staircase
  • Cold weather arrangement (electric heaters for hydraulic oil, transmission oil, engine oil, and coolant)
  • KomVision (with radar)
Support you can count on

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