Komatsu WA500-7 Steel Mill » General Equipment & Supplies, Inc.

Komatsu WA500-7 Steel Mill

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The Komatsu-integrated design found in this loader offers class leading value, reliability and versatility. Hydraulics, power train, frame and all other major components are engineered by Komatsu. You get a machine whose components are designed to work together for higher production and reliability. The integrated design also provides the strong frame and component foundation to allow a 2nd or even 3rd life after rebuilding. Now add the Komatsu designed Steel Mill Arrangement with guarding and heat protection specifically matched to the WA500-7 and you have a loader that handles hot slag and stays working longer for increased productivity.


Model   Komatsu SAA6D140E-6*
Type   Water-cooled, 4-cycle
Aspiration   Turbo-charged, after-cooled, cooled EGR
Number of cylinders   6
Bore x Stroke 5.51" x 6.50" 140 mm x 165 mm
Piston displacement 930 in³ 15.24 ltr
Govenor   All-speed, electronic
SAE J1995 - Gross 357 HP 266 kW
ISO 9249 / SAE J1349 - Net 353 HP 263 kW
Rated rpm   1900 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
Torque converter   3-elements, 1-stage, 2-phase
Transmission   Full-powershift, planetary type
Travel speed: (Measured with 23.5-25 tires) Forward Reverse
1st gear 4.7 mph 5.3 mph
  7.5 km/h 8.5 km/h
2nd gear 8.0 mph 8.0 mph
  12.9 km/h 12.9 km/h
2nd gear (Lock-up clutch ON) 8.1 mph 8.1 mph
  13.1 km/h 13.0 km/h
3rd gear 13.8 mph 15.3 mph
  22.2 km/h 24.7 km/h
3rd gear (Lock-up clutch ON) 14.7 mph 16.5 mph
  23.7 km/h 26.6 km/h
4th gear 22.1 mph 23.6 mph
  35.5 km/h 38.0 km/h
4th gear (Lock-up clutch ON) 23.2 mph 23.6 mph
  37.3 km/h 38.0 km/h
Axles and Final Drives    
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   Conventional type
Final reduction gear   Planetary gear, single reduction
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, fully-hydraulic power steering
Steering angle   36° (40° to max end stop)
Minimum turning radius at the center of outside tire 23' 2" 7050 mm
Hydraulic System    
Steering system:    
Hydraulic pump   Piston pump
Capacity at rated rpm 31.7 U.S. gal/min 120 ltr/min
Relief valve setting 3,555 psi 24.5 MPa / 250 kgf/cm²
Hydraulic cylinders:    
Type   Double-acting, piston type.
Number of cylinders   2
Bore x stroke 3.9" x 19.1" 100 mm x 486 mm
Loader control:    
Hydraulic pump   Piston pump
Capacity at rated rpm 84.8 U.S gal/min 320 ltr/min
Relief valve setting 4,980 psi 34.3 MPa / 350 kgf/cm²
Hydraulic cylinders:    
Type   Double-acting, piston type.
Number of cylinders: Bore x Stroke: Bore x Stroke:
Boom cylinder / 2 6.3" x 35.4" 160 mm x 898 mm
Bucket cylinder / 1 7.3" x 26.6" 185 mm x 675 mm
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   7.2 sec
Dump   1.7 sec
Lower (Empty)   4.2 sec
Service Refill Capacities    
Cooling system 35.1 U.S. gal 133 ltr
Fuel tank 124.9 U.S. gal 473 ltr
Engine 9.8 U.S. gal 37 ltr
Hydraulic system 89.0 U.S. gal 337 ltr
Axle (each front and rear) 25.1 U.S. gal 95 ltr
Torque converter and transmission 18.8 U.S. gal 71 ltr