Komatsu WD600-6

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Features

High productivity is the story of the WD600-6 wheeled dozer. The operator has two engine power modes, load sensing hydraulics and a modulated clutch system to harness the 527 horsepower to maximize production when moving mass quantities of soil, coal, chips, slurry or whatever gets in the way.

Specifications

Engine    
     
Model   Komatsu SAA6D170E-5*
Type   Water-cooled, 4-cycle
Aspiration   Turbocharged, aftercooled, cooled EGR
Number of cylinders   6
Bore x stroke 6.69" x 6.69" 170 mm x 170 mm
Piston displacement 1,413 in³ 23.15 ltr
Governor   all-speed, electronic
Horsepower:    
SAE J1995 - Gross 530 HP 396 kW
ISO 9249/SAE J1349 - Net 527 HP 393 kW
Hydraulic fan at maximum speed - Net 502 HP 374 kW
Rated rpm   1800 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
Transmission    
     
Torque converter:    
Type   3-element, single-stage, double-phase
Transmission:    
Type   Full-powershift, planetary type
Travel speed   Measured with 35/65-33 tires
Speed: Forward Reverse
     
1st 4.2 mph 4.5 mph
  6.7 km/h 7.3 km/h
     
2nd 7.3 mph 11.7 km/h
  (7.7 mph 8.0mph
  12.4 km/h) 12.8 km/h
     
3rd 12.6 mph 20.3 km/h
  (13.5 mph 13.7 mph
  21.7 km/h) 22.0 km/h
     
4th 20.5 mph 22.4 mph
  33.0 km/h 36.0 km/h
  (23.4 mph  
  37.7 km/h)  
  Axles and Final Drives    
     
Drive system   Four-wheel drive
Front   Fixed, semi-floating
Rear   Center-pin support, semi-floating, 26° total oscillation
Reduction gear   Spiral bevel gear
Differential gear   Conventional type
Final reduction gear   Planetary gear, single reduction
     
Brakes    
     
Service brakes   Hydraulically actuated, wet disc brakes actuate on four wheels
Parking brake   Wet disc brake
Emergency brake   Parking brake is commonly used
     
Steering System    
     
Type   Articulated type, full-hydraulic power steering
Steering angle   43° each direction
Minimum turning radius at the center of outside tire 23'3" 7075 mm
     
Hydraulic System    
     
Steering system:    
Hydraulic pump   Piston type
Capacity at rated rpm 43.1 U.S. gal/min 163 ltr/min
Relief valve setting 4,980 psi 34.3 MPa
350 kgf/cm²    
Hydraulic cylinders:    
Type   Double-acting, piston
Number of cylinders   2
Bore x stroke 5.1" x 20" 130 mm x 510 mm
Loader control:    
Hydraulic pump   Piston type
Capacity at rated rpm 47.6 + 47.6 U.S. gal/min 180 + 180 ltr/min
Relief valve setting 3,560 psi 24.5 MPa 250 kgf/cm²
Hydraulic cylinders:    
Type   Double-acting, piston
Number of cylinders: Bore x Stroke: Bore x Stroke:
Blade lift - 1 6.3" x 42.5" 160 mm x 1080 mm
Tilt and pitch - 2 7.0" x 9.3" 180 mm x 237 mm
Control valve   3-spool type
Control positions:    
Blade lift   Raise, hold, lower, and float
Tilt and pitch   Tilt-left, tilt-right, hold, pitch forward and back
Hydraulic cycle time    
Raise   2.0 sec
Lower   1.3 sec
Tilt (left / right)   0.8 / 1.1 sec
Pitch (front / rear)mage   2.1 / 1.6 sec

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