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Komatsu Wheel Loaders WA1200-6
WA1200-6 Wheel Loader
26.2 yd³. 1765 hp. Incredible numbers for Komatsu's largest, most productive wheel loader, the WA1200-6. From the low vibration cab the operator uses his advanced joystick control and modulated clutch drive system to maneuver in tight areas to load trucks up to 320 ton capacity. High stability and breakout force give the operator the confidence he needs to keep up with the production demands of today's mines.
Engine
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
Transmission
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
Axles and Final Drives
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
Brakes
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
Steering System
Type
Articulated, fully-hydraulic power steering
Steering angle
40° each direction
Turning radius outside corner of bucket and teeth
47'0"
14330 mm
Hydraulic System
14330 mm 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
OPS FOPS Level 2 Cab
The cab is mounted on viscous damping mounts and is well insulated.
