BR550JG-1

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Engine   
Model    Komatsu SAA6D125E-2 
Type    4-cycle, water-cooled, direct injection 
Aspiration    Turbocharged and aftercooled (air to air) 
Number of cylinders   
Bore  4.92''  125 mm 
Stroke  5.91''  150 mm 
Piston displacement  674 in³  11.04 ltr 
Flywheel horsepower @ 1950 rpm (SAE J1349)  306 HP  228 kW 
Governor    All-speed, electrical 
 
Hydraulic System   
Type    Variable capacity with pistons (inclined plate type) 
Main pump:     
Type    Variable-capacity pistons 
Pumps for    Travel, crusher, conveyor, and options 
Maximum flow  2 x 82 U.S. gpm  2 x 310 ltr/min 
Maximum pressure  5,405.5 psi  380 kg/cm² 
Maximum travel speed  1.9 mph  3 km/h 
Hydraulic system (travel, crusher, feeder, conveyor, and option):     
Travel  58 U.S. gpm  220 ltr/min 
Crusher  86 U.S. gpm  325 ltr/min 
Feeder  29 U.S. gpm  110 ltr/min 
Main conveyor  24 U.S. gpm  90 ltr/min 
Muck conveyor  12 U.S. gpm  47 ltr/min 
Magnetic separator  10 U.S. gpm  36 ltr/min 
 
Operating Weight   
Operating weight, including 500 mm shoes  104,720 lb  47500 kg 
Production capacity  110-507 U.S. ton/h  100-460 ton/h 
 
Crusher   
Jaw    Komatsu FS4430QA 
Inlet size  44'' x 30''  1120 mm x 765 mm 
Discharge setting (O.S.S.)  2.2''-7.9''  55mm-200mm 
Rotating speed (variable)    210-300 rpm 
 
Grizzly Feeder   
Frequency  Maximum  1000 cpm 
Size  44'' x 13'6''  1125 mm x 4105 mm 
Drive type    Hydraulic gear motor 
 
Undercarriage   
Seal of track    Sealed track 
Track adjuster    Hydraulic 
Number of shoes    45 each side 
Number of carrier rollers    2 sets/one side 
Number of track rollers    5 sets/one side 
 
Coolant and Lubricant Capacity   
Fuel tank  160 U.S. gal  605 ltr 
Radiator  12 U.S. gal  43.9 ltr 
Engine  10 U.S. gal  38 ltr 
Final drive, each side  2.4 U.S. gal  9 ltr 
Hydraulic system  98 U.S. gal  370 ltr 

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