PC350HD-8

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Engine   
Model    Komatsu SAA6D114E-3 
Type    Water-cooled, 4-cycle, direct injection 
Aspiration    Turbocharged and aftercooled 
Number of cylinders   
Bore  4.49''  114 mm 
Stroke  5.31''  135 mm 
Piston displacement  505 in  8.27 ltr 
Horsepower:     
SAE J1995 / Gross  260 HP  194 kW 
ISO 9249/SAE J1349 / Net  246 HP  184 kW 
Rated rpm    1950 rpm 
Fan drive type    Mechanical 
Governor    All-speed, electronic 
EPA Tier 3 and EU stage 3A emissions certified.     
Hydraulic System   
Type    HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load sensing valves and pressure compensated valves 
Number of selectable working modes   
Main pump:     
Type    Variable displacement piston type 
Pumps for    Boom, arm, bucket, swing, and travel circuits 
Maximum flow  141 U.S. gal/min  535 ltr/min 
Sub-pump for control circuit    Self-reducing valve 
Hydraulic motors:     
Travel    2 x axial piston motors with parking brake 
Swing    1 x axial piston motor with swing holding brake 
Relief valve setting:     
Implement circuits  5,400 psi  380 kg/cm / 37.3 MPa 
Travel circuit  5,400 psi  380 kg/cm / 37.3 MPa 
Swing circuit  4,050 psi  285 kg/cm / 27.9 MPa 
Pilot circuit  470 psi  33 kg/cm / 3.2 MPa 
Hydraulic cylinders:     
Number of cylinders  Bore x stroke x rod diameter  Bore x stroke x rod diameter 
Boom/2  5.5" x 58.3" x 3.9''  140 mm x 1480 mm x 100 mm 
Arm/1  6.3" x 71.9" x 4.3''  160 mm x 1825 mm x 110 mm 
Bucket/1 (for 10'5" and 13'2" arms)  5.5" x 50.6" x 3.9"  140 mm x 1285 mm x 100 mm 
Bucket/1 (for 8'4" arms)  5.9" x 50.6" x 4.3"  150 mm x 1285 mm x 110 mm 
Drives & Brakes   
Steering control    Two levers with pedals 
Drive method    Hydrostatic 
Maximum drawbar pull  73,880 lb  33510 kg / 329 kN 
Gradeability  70%  35 
Maximum travel speed:     
High  3.4 mph  5.5 km/h 
Mid  2.7 mph  4.4 km/h 
Low  1.9 mph  3.0 km/h 
Service brake    Hydraulic lock 
Parking brake    Mechanical disc brake 
Swing System   
Drive Method    Hydrostatic 
Swing reduction    Planetary gear 
Swing circle lubrication    Grease bathed 
Service brake    Hydraulic lock 
Holding brake / Swing lock    Mechanical disc brake 
Swing speed    9.5 rpm 
Swing torque  82,313 ft. lbs.  11386 kgm 
Undercarriage   
Center frame    X-frame 
Track frame    Box-section 
Track type    Sealed 
Track adjuster    Hydraulic 
Number of shoes    49 each side 
Number of carrier rollers    2 each side 
Number of track rollers    8 each side 
Coolant and Lubricant Capacity (refilling)   
Fuel tank  160 U.S. gal  605 ltr 
Coolant  8.0 U.S. gal  30.3 ltr 
Engine  9.2 U.S. gal  35.0 ltr 
Final drive, each side  3.2 U.S. gal  12.0 ltr 
Swing drive  3.5 U.S. gal  13.4 ltr 
Hydraulic tank  49.7 U.S. gal  188 ltr 
Operating Weight (approximate)   
Operating weight, including 6500 mm / 21'3" one-piece boom, 3185 mm / 10'5" arm, SAE heaped 1.96 m / 2.56 yd bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment. 
Triple-grouser shoes  Operating weight  Ground pressure 
28"
700 mm 
86,105 lb
39057 kg 
8.22 psi
0.58 kg/cm 
31.5"
800 mm 
87,214 lb
39537 kg 
7.29 psi
0.51 kg/cm 
35.5"
900 mm 
88,178 lb
39997 kg 
6.55 psi
0.46 kg/cm 

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