Komatsu WA200-8 MID-SIZE WHEEL LOADERS
Product Feature
Variable Geometry Turbocharger (VGT) system
The VGT provides optimal air flow under all engine speed and load conditions. The upgraded version provides better exhaust temperature management.
Hydrostatic Transmission (HST)
The HST provides quick travel response and aggressive drive into the pile. Full auto-shifting eliminates any gear shifting and kick-down operation to allow the operator to concentrate on digging and loading. The HST also acts as a dynamic brake to slow the loader. This dramatically extends the life of the wet disc brakes.
Creep Mode
Creep mode limits the travel speed in 1st speed range, while still allowing for full hydraulic flow.
New Operator Seat
A new standard, heated, air-suspension seat provides enhanced support on rough roads and dampens machine vibrations, providing a more comfortable ride for the operator. The angle of the armrest is fully adjustable for optimum operator comfort. A secondary F-N-R switch is incorporated into the standard multi-function mono lever.
Standard Rearview Monitoring System
The dedicated, full-color monitor on the right side of the cab provides the operator with a rearview from the machine. This monitor can be always on or only on when the loader shifts into reverse. Guidelines provide the operator with visual cues for the width of the loader.
Multi-Function Mono Lever
The Electronically Controlled Suspension System (ECSS) or ride control system uses an accumulator which absorbs some of the shock in the boom arm, giving the operator a much smoother ride. This reduces operator fatigue and reduces material spillage during load and carry operations. ECSS is speed sensitive, meaning that the boom won’t move during stationary digging. ECSS is standard on the WA200-7.
Electronically Controlled Suspension System
The standard Electronically Controlled Suspension System or ride control system uses an accumulator, which absorbs some of the shock in the boom arm, giving the operator a much smoother ride. This reduces operator fatigue and reduces material spillage during load and carry operations. Ride control is speed sensitive and the activation speed can be adjusted in the monitor panel.
Product Parameter
| Model | Komatsu SAA4D107E-3* | |
| Type | Water-cooled, 4-cycle | |
| Aspiration | Variable geometry, turbo-charged, after-cooled, cooled EGR | |
| Number of cylinders | 4 | |
| Bore x stroke | 107 mm x 124 mm | 4.21" x 4.88" |
| Piston displacement | 4.46 ltr | 272 in³ |
| Governor | All-speed, electronic | |
| Horsepower: | ||
| SAE J1995 / Gross | 95.2 kW | 128 HP |
| ISO 9249/SAE J1349 / Net | 94 kW | 126 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 |
|
Type . . . . . . . Hydrostatic, 1 pump, 2 motors with speed range select |
|
| Travel speed (Measured with 20.5-R25 tires): | Both Forward and Reverse |
| 1st | 0 - 14.3 km/h 0 - 8.9 mph |
| 2nd | 14.3 km/h 8.9 mph |
| 3rd | 23.2 km/h 14.4 mph |
| 4th | 38.0 km/h 23.6 mph |
| Drive system | Four-wheel drive |
| Front | Fixed, semi-floating |
| Rear | Center-pin support, semi-floating, 24° total oscillation |
| Reduction gear | Spiral bevel gear |
| Differential gear | Torque proportioning |
| Final reduction gear | Planetary gear, single reduction |
| Service brakes | Hydraulically-actuated, wet disc brakes actuate on four wheels. |
| Parking brake | Wet, multi-disc brake on transfer output shaft. |
| Secondary brake | One of dual service brake circuits is commonly used |
| Type | Articulated type, fully-hydraulic power steering | |
| Steering angle | 38° each direction (40° to max end stop) | |
| Minimum turning radius at the center of outside tire | 4880 mm | 16'0" |
| Steering system: | ||
| Hydraulic pump | Gear type pump | |
| Capacity (at rated rpm) | 85 ltr/min | 22.5 U.S. gal/min |
| Relief valve setting | 20.6 MPa 210 kgf/cm² |
3,000 psi |
| Hydraulic cylinders: | ||
| Type | Double-acting, piston type | |
| Number of cylinders | 2 | |
| Bore x stroke | 70 mm x 453 mm | 2.76" x 17.8" |
| Loader control: | ||
| Hydraulic pump | Gear type pump | |
| Capacity | 54 ltr/min | 14.3 U.S. gal/min |
| Relief valve setting | 20.6 MPa 210 kgf/cm² |
3,000 psi |
| Hydraulic cylinders: | ||
| Type | Double-acting, piston type | |
| Number of cylinders | bore x stroke | bore x stroke |
| Lift cylinder - 2 | 125 mm x 673.5 mm | 4.9" x 26.5" |
| Bucket cylinder - 1 | 150 mm x 504 mm | 5.9" x 19.8" |
| 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 | 5.7 sec | |
| Dump | 1.9 sec | |
| Lower (Empty) | 3.2 sec |
| Cooling system | 26.5 ltr | 7.0 U.S. gal |
| Fuel tank | 177 ltr | 46.8 U.S. gal |
| Engine | 15.5 ltr | 4.1 U.S. gal |
| Hydraulic system | 58 ltr | 15.3 U.S. gal |
| Axle front | 18.5 ltr | 4.9 U.S. gal |
| Axle rear | 18 ltr | 4.8 U.S. gal |
| Transfer case |
5 ltr | 1.3 U.S. gal |
| DEF tank | 14 ltr |
3.7 U.S. gal |
