SK850LC

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GENERAL SPECIFICATION

MODEL
SK850LC
PERFORMANCE
Bucket Capacity ISO heaped m3 2.8-5.4
Swing Speed min-1{rpm} 8.4
Travel Speed km/h 4.2/2.7
Gradeability % {º} 70 {35}
Bucket Digging Force for Standard Arm(3.6m)kN {kgf} 403 {40,900}
Arm Crowding Force for Standard Arm(3.6m)kN {kgf} 311 {31,600}
Drawbar Pulling Force kN {tf} 637 {65}
WEIGHT
Operating Weight with shoe 650, 750, 900(Standard Arm)Kg 78,200, 78,800, 79,900
Ground Pressure with shoe 650, 750, 900(Standard Arm)
kPa {kgf/cm2}
106 {1.08}, 92 {0.94}, 78 {0.80}
Shoe Width mm 650, 750, 900
ENGINE
Model KOMATSU SAA6D14OE-5
Type Direct injection, water-cooled, 4-cycle
electrically-controlled common rail system type diesel engine with turbocharger,
intercooler
Rated Power OutputkW{PS}/min-1{rpm} 370{503}/1800 (ISO14396: 2002)
Max. TorqueN.m/min-1 2197 / 1350
DisplacementL 15.24
Fuel Tank L 960
HYDRAULIC SYSTEM
Pump Type Two variable displacement pumps + one gear pump
Max. Discharge Flow L/min 2 x 504, 1 x 30
Relief Valve Setting – Boom, arm and bucketMPa {kgf/cm2 33.0{337}
Swing Motor Axial-piston motor
Travel Motors 2 X axial-piston motor, two-step motors
Hydraulic Oil Tank L 473 Tank oil level
856 Hydraulic system