Contents
Dimensions
| Komatsu WA1200-6 | Standard Boom, 20’4″ (6.20 m) | High Lift Boom, 22’2″ (6.78 m) |
|---|---|---|
| A. Wheelbase | 280 in (7100 mm) | 280 in (7100 mm) |
| B. Hinge Pin Height, Max. Height | 348 in (8850 mm) | 376 in (9540 mm) |
| C. Hinge Pin Height, Carry position | 46 in (1150 mm) | 53 in (1350 mm) |
| D. Ground clearance | 30 in (760 mm) | 30 in (760 mm) |
| E. Hitch Height | 56 in (1415 mm) | 56 in (1415 mm) |
| F. Overall Height, Top of the Stack | 265 in (6735 mm) | 265 in (6735 mm) |
| G. Overall Height to Cab with ROPS | 274 in (6970 mm) | 274 in (6970 mm) |
| H. Tread | 170 in (4300 mm) | 170 in (4300 mm) |
| I. Width Over Tires | 229 in (5820 mm) | 229 in (5820 mm) |
Working Range
| WA1200-6 | Standard Boom | High Lift Boom |
|---|---|---|
| Boom Length | 244 in (6200 mm) | 267 in (6780 mm) |
| Bucket Type | Rock Bucket, spade nose w/ teeth | Coal Bucket, spade nose w/o teeth |
| Bucket Weight | 50220 lb (22780 kg) | 54280 lb (24620 kg) |
| Bucket Capacity: heaped | 26.2 yd3 (20.0 m3) | 45.8 yd3 (35.0 m3) |
| Bucket Capacity: struck | 22.5 yd3 (17.2 m3) | 39.5 yd3 (30.2 m3) |
| J. Bucket Width | 252 in (6400 mm) | 252 in (6400 mm) |
| K. Bucket Width w/ Tire Protector | 258 in (6550 mm) | |
| L. Dumping Clearance, Max Height and 45° Dump Angle | 248 in (6305 mm) | 275 in (6995 mm) |
| M. Reach at Max Height and 45° Dump Angle | 114 in (2890 mm) | 123 in (3135 mm) |
| O. Operating Height (fully raised) | 481 in (12205 mm) | 538 in (13665 mm) |
| P. Overall Length (bucket ground) | 721 in (18310 mm) | 754 in (19135 mm) |
| Q. Digging Depth, 0° | 9.8 in (250 mm) | 5.5 in (140 mm) |
| R. Digging Depth, 10° | 30.9 in (785 mm) | 26.8 in (680 mm) |
| Static Tipping Load: straight | 268800 lb (121930 kg) | 241300 lb (109450 kg) |
| Static Tipping Load: 40° full turn | 236000 lb (107060 kg) | 211860 lb (96100 kg) |
| Breakout Force | 286600 lbf (1275 kN) | 224800 lbf (1000 kN) |
| Operating Weight | 477100 lb (216400 kg) | 486250 lb (220550 kg) |
Buckets
| Type | Capacity | Weight |
|---|---|---|
| Spade Nose Rock Bucket | 23.5 yd3 (18.0 m3) | 49380 lb (22400 kg) |
| Spade Nose Rock Bucket | 26.2 yd3 (20.0 m3) | 50220 lb (22780 kg) |
| Coal Bucket | 45.8 yd3 (35.0 m3) | 54280 lb (24620 kg) |
Steering System
| Steering System Type | Articulated |
| Steering Angle | ±40° |
| Turning Radius (outside corner of bucket and teeth) | 47 ft (14330 mm) |
| Loader Clearance Circle (outside corner of bucket at carry position) with standard boom | 94 ft (28700 mm) |
| Loader Clearance Circle (outside corner of bucket at carry position) with high lift boom | 96.2 ft (29300 mm) |
Engine Details
| Number of Cylinders | 16 |
| Engine Make | Komatsu |
| Engine Model | SSDA16V160E-2 |
| Displacement | 3661 cu in (60 L) |
| Bore | 6.26 in (159 mm) |
| Stroke | 7.48 in (190 mm) |
| Horsepower, Gross | 1892 hp (1411 kw) |
| Horsepower, Net | 1765 hp (1316 kw) |
| Power Measured @ | 1800 rpm |
| Fan Drive Method | Mechanical |
| Lubrication Method | Gear pump, force-lubricatio |
| Oil Filter | Full-flow type bypass combined |
| Fuel System | Modular common rail system |
| Governor | All-speed, electronic |
| Air Cleaner | Dry-type with double elements and automatic dust evacuation with dust indicator on monitor |
| Aspiration | Turbocharged and aftercooled, EGR |
| Emission Standards | US EPA Tier 2 |
Operational Specs
| Operating Weight | 476640 lb (216200 kg) |
| Max Operating Weight | 486340 lb (220600 kg) |
| Operating Voltage | 24 V |
| Alternator | 140 amps |
| Battery | 6x 12 V, 160 Ah |
| Starter | 2x 24 V, 12 hp (9.0 kw) |
| Standard Rim Size | 47.00-57/5.0 |
| Standard Tire Size | 60/80 R57 |
| Optional Tire Size | 58/85-57-84PR |
Operator Environment
| Cab | Cab with ROPS/FOPS is mounted on viscous damping mounts |
| ROPS | ISO 3471 ROPS |
| FOPS | ISO 3449 FOPS |
| Lights | Working lights (6 front, 8 rear); Backup light; Head lights (4 front); Stop and tail; Turn signal with hazard switch (2 front, 2 rear); Access stairs and service area light |
| Operator Seat | Air suspension seat with reclining |
| Seat Belt | 3 in (76 mm) seat belt with retractor |
| HVAC | Air conditioner, heater, defroster & pressurizer |
| Steering Control | Full hydraulic power (joystick steering control) |
| Vibration Level, Hand/Arm | 2.5 m/s2 (uncertainty K = 0.46 m/s2) |
| Vibration Level, Body | 0.5 m/s2 (uncertainty K = 0.29 m/s2) |
| Noise Level (ISO 6396 dynamic test) | 73 dB(A) |
Transmission
| Type | Full-powershift, planetary type with modulated clutch |
| Number Of Gears | 3F / 3R |
| Max Forward Speed | 11.6 mph (18.7 km/h) |
| Max Reverse Speed | 12.0 mph (19.3 km/h) |
| Torque Converter | 3-element, single-stage, single-phase |
| Service Brakes | Hydraulically actuated, wet disc brakes actuate on four wheels |
| Parking Brake | Wet, multiple-disc |
| Emergency Brake | Parking brake is commonly used |
Axles and Final Drive
| Drive | 4WD |
| Front Axle | Fixed, full-floating |
| Rear Axle | 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 |
Hydraulic System
| Type | Dual-mode Active Working System |
| Pump Type | Piston Pump |
| Relief Valve Setting | 4550 psi (31400 kPa) |
| Loader Pump Flow | 269 gal/min (1018 L/min) |
| Steering Pump Flow | 167.3 gal/min (633 L/min) |
| Switch Pump Flow | 167.3 gal/min (633 L/min) |
| Control Valves | A double spool closed-center hydraulic valve and a steering valve combined with a demand valve to provide optimum flow |
| Control Positions Boom | Raise, hold, lower, and float |
| Control Positions Bucket | Tilt-back, hold, and dump |
| Numbers of Cylinders (Boom / Bucket / Steering) | 2 / 2 / 2 |
| Raise Time | 14.8 sec |
| Dump Time | 3.2 sec |
| Lower Time (Empty) | 5.3 sec |
Service Refill Capacities
| Fuel Tank Capacity | 1347 gal (5100 L) |
| Engine Oil Capacity | 74 gal (280 L) |
| Cooling System Capacity | 132 gal (500 L) |
| Hydraulic System Capacity | 343 gal (1300 L) |
| Torque Converter + Transmission Oil Capacity | 92 gal (350 L) |
| Differential, Final Drive (each axle) | 177 gal (670 L) |
| Brake Oil Capacity | 20 gal (75 L) |
| Brake Cooling System Capacity | 77 gal (290 L) |
