Komatsu WA1200-6 MINING WHEEL LOADERS
Product Feature
Advanced Joystick Steering System
AJSS is a feedback steering system which has been incorporated to allow steering, forward and reverse direction to be controlled by wrist and finger. With the feedback function, the machine steering angle is the same angle as the lever tilt angle.
2 Mode Control of Engine
The engine output function has "2 modes", Economy or Power. They are selected and controlled automatically. P mode is selected only when digging and approaching the dump truck. This "2 mode" engine control contributes to the reduction of the fuel rate and also improves reliability and durability.
Equipment Management Monitoring System
Monitor is mounted in front of the operator for easy viewing, allowing the operator to easily check gauges and warning lights.
Excellent Stability
The WA1200-6 has the widest tread in its class
Hi-cab
To enhance loading performance when using large buckets with extra dumping clearance and reach, the hi-cab is standard equipment. From the operator vantage point, 6380 mm / 20'11" from the ground, the seated operator has an unobstructed full view of the bucket and the inside of a 240-ton truck body.
High Breakout Force / Traction 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, rear frames and the loader linkage have increased torsional rigidity for stress resistance. Frame and loader linkage are designed and computer tested for proven strength to accommodate actual working loads.
Maximum speed control
With the "VEHICLE SPEED DIAL", you can set the maximum vehicle speed of 1st. and 2nd. at any level from 3km/h 2 mph to max. This means the operator can adjust the cycle time between the material and the dump truck. As the loading cycle time is shortened, productivity is improved.
Maximum traction control
Traction can be set at any level within 20 - 100% with the "TRACTION CONTROL DIAL" located on the left front of the dash. You can set the maximum traction force according to the condition of the road, material and type of work. This can greatly increase fuel efficiency and extend the service life of tires.
Modulated Clutch System
When approaching the dump truck,
The Largest Bucket in Its Class
The WA1200-6 is equipped with the largest bucket in its class at 20.0 m³ / 26.2 yd³. Komatsu’s bucket is designed for easy loading with little spillage. This, combined with the highest traction and breakout force available, makes a loader which achieves high bucket fill factors and maximum production.
Trainer Seat
A trainer seat is provided for operator instruction. The seat belt is attached to the trainer seat the same way as the operator seat. The trainer seat can be folded up when not in use.
Product Parameter
Drive system | Four-wheel drive | |
Front | Fixed, full floating | |
Rear | Center-pin support, full-floating, 16˚ total oscillation | |
Reduction gear | Spiral bevel gear | |
Differential gear | Straight bevel gear | |
Final reduction gear | Planetary gear, double reduction, oil bath |
Service brakes | Hydraulically actuated, wet, multi-disc brakes actuated on four wheels. | |
Parking brake | Wet, multi-disc, hydraulically-released, spring applied in the transmission. | |
Secondary brake | Parking brake is commonly used |
Control positions: | ||
Boom | Raise, hold, lower, and float | |
Bucket | Tilt-back, hold, and dump |
Model | Komatsu SDA16V160E-2 | |
Type | Water-cooled, 4-cycle | |
Aspiration | Turbocharged and aftercooled | |
Number of cylinders | 16 | |
Bore x stroke | 6.26'' x 7.48'' | 159 mm x 190 mm |
Piston displacement | 3,661 in³ | 60 ltr |
Governor | Electronic fuel control | |
Flywheel horsepower: | ||
SAE J1995 - Gross | 1892 HP | 1411 kW |
ISO 9249/SAE J1349 - Net | 1765 HP | 1316 kW 1765 hP |
Rated rpm | 1800 rpm | |
Fan drive method for radiator cooling | Mechanical | |
Fuel system | Modular common rail system direct injection | |
Lubrication system: | ||
Method | Screw pump, forced lubrication | |
Filter | Full-flow | |
Air cleaner | Dry-type with double elements and automatic dust evacuation with dust indicator on monitor |
Rated capacity (discharge flow) @1800 engine rpm | ||
Loader pump | 269 gal/min | 1018 ltr/min |
Steering pump | 167 gal/min | 633 ltr/min |
Switch pump | 167 gal/min | 633 ltr/min |
Relief valve setting | 4,550 psi | 31.4 MPa 320 kg/cm² |
Control valves | A double spool closed-center hydraulic valve and a steering valve combined with a demand valve to provide optimum flow. | |
Hydraulic cylinders/Number of cylinders | Bore x stroke: | Bore x stroke: |
Boom/2 | 14.2'' x 72.2'' | 360 mm x 1835 mm |
Bucket/2 | 11.8'' x 38.8" | 300 mm x 985 mm |
Steering/2 | 8.9'' x 26.0'' | 225 mm x 660 mm |
Control positions: | ||
Boom | Raise, hold, lower, and float | |
Bucket | Tilt-back, hold, and dump | |
Hydraulic cycle time (rated load in bucket): | ||
Raise | 14.8 sec | |
Dump | 3.2 sec | |
Lower (empty) | 5.3 sec |
The cab is mounted on viscous damping mounts and is well insulated. |
Cooling system | 132 U.S. gal | 500 ltr |
Fuel tank | 1,347 U.S. gal | 5100 ltr |
Engine | 74 U.S. gal | 280 ltr |
Hydraulic system | 343 U.S. gal | 1300 ltr |
Differential, final drive (each axle) | 177 U.S. gal | 670 ltr |
Torque converter and transmission | 92 U.S. gal | 350 ltr |
Brake oil | 20 U.S. gal | 75 ltr |
Brake cooling | 77 U.S. gal | 290 ltr |
Type | Articulated, fully-hydraulic power steering | |
Steering angle | 40° each direction | |
Turning radius outside corner of bucket and teeth | 47'0" | 14330 mm |
Select proper tires based on job requirements. | ||
Standard rim size | 47.00-57/5.0 | |
Standard tire size | 60/80 R57 |
Torque converter - Type | 3-element, single-stage, single-phase | |
Transmission - Type | Full power shift, planetary gear with modulated clutch | |
Travel Speed (Measured with 60/80 R57 tires): | ||
1st Forward | 3.8 mph | 6.1 km/h |
1st Reverse | 3.9 mph | 6.3 km/h |
2nd Forward | 6.9 mph | 11.1 km/h |
2nd Reverse | 7.1 mph | 11.4 km/h |
3rd Forward | 11.6 mph | 18.7 km/h |
3rd Reverse | 12.0 mph | 19.3 km/h |