SPECIFICATIONS

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  • Engine

    Model Komatsu SAA3D95E-1
    Type Water-cooled, 4-cycle, direct injection
    Aspiration Variable flow turbocharged, aftercooled, cooled EGR
    Number of Cylinders 3
    Bore x Stroke 95 mm x 115 mm
    Piston Displacement 2.45 ltr
    Horsepower, Gross - SAE J1995 50.7 kW / 68.0 HP
    Horsepower, Net - ISO 9249 / SAE J1349 50.6 kW / 67.8 HP
    Fan at maximum speed Net 48.4 kW / 64.8 HP
    Fan drive method for radiator cooling Mechanical
    Emissions certification EPA Tier 4 Final
    Governor All-speed control, electronic

    U.S. EPA Tier 4 Final emissions certified

  • Hydraulics

    Type HydrauMind System (Hydraulic Mechanical Intelligence New
    Design) system, closed-center system with load sensing
    valves and pressure compensated valves
    Number of selectable working modes 6
    Main pump type Variable displacement, axial piston
    Pump for Boom, arm, bucket, swing and travel circuits
    Maximum flow 168 ltr/min
    Hydraulic Motors  
    Travel 2 x axial piston motor with parking brake
    Swing 1 x axial piston motor with swing holding brake
    Relief Valve Setting  
    Implement circuits 26.5 MPa 270 kgf/cm2
    Travel circuit Travel circuit 27.0 MPa 275 kgf/cm2
    Swing circuit Swing circuit 20.6 MPa 210 kgf/cm2
    Pilot circuit 3.2 MPa 33 kgf/cm2
    Blade circuit 21.1 MPa 215 kgf/cm2
    Hydraulic Cylinders Bore x Stroke x Rod diameter
    Boom 1-120 mm x 1015 mm x 70 mm
    Arm 1-110 mm x 715 mm x 65 mm
    Bucket 1-90 mm x 710 mm x 55 mm
    Boom offset 1-110 mm x 350 mm x 55 mm
    Blade 1–130 mm x 130 mm x 65 mm
  • Drives and Brakes

    Steering control Two levers with pedals
    Drive method Hydrostatic
    Maximum drawbar pull 68.2 kN 6950 kgf
    Gradeability 70%, 35°
    Maximum travel speed (Auto-shift)  
    High 5.0 km/h
    Low 2.7 km/h
    Service brake Hydraulic lock
    Parking brake Mechanical disc brake
  • Swing System

    Driven method Hydrostatic
    Swing reduction Planetary gear
    Swing circle lubrication Grease-bathed
    Service brake Hydraulic lock
    Holding brake / Swing lock Mechanical disc brake
    Swing speed 10 min-1
  • Undercarriage

    Center frame X-frame
    Track frame Box-section
    Track type Sealed track
    Track adjuster Hydraulic
    Number of shoes (each side) 39
    Number of carrier rollers (each side) 1
    Number of track rollers (each side) 5
  • Coolant & Lubricant capacity (refill))

    Fuel tank 125 ltr
    Coolant 16 ltr
    Engine 10.5 ltr
    Final drive, each side 1.1 ltr
    Swing drive 2.0 ltr
    Hydraulic tank 56 ltr
  • Weights

    Operating weight including 3750 mm offset boom, 1720 mm arm, heaped 0.28 m3 bucket, rated capacity of  lubricants, coolant, full fuel tank, operator, and standard equipment. 

      With Blade  
    Shoes Operating Weight Ground Pressure
    450 mm
    Triple grouser
    8550 kg 37.4 kPa
    0.38 kgf/cm2
    450 mm
    Road Liner
    8690 kg 37.7 kPa
    0.38 kgf/cm2

PC78UU-11 Excavators

Designed to excel in underground utility and general construction in urban environments, the new Komatsu PC78UU-11 short tail swing excavator is at home in confined spaces. Extremely transportable, it delivers high attachment flow with in-cab programmable flow rates for a wide range of attachments. It incorporates features of bigger Komatsu excavators, with key components designed and manufactured by Komatsu to work together in an integrated package. And it’s standard with our Komtrax remote monitoring and location system, backed by our Australia-wide service and support network.

Tier 4 Engine KDPF Regeneration
  • 51 kW / 68 HP
    ENGINE POWER
  • 8,480 kg
    OPERATING WEIGHT
  • 0.28 m³
    BUCKET CAPACITY

Current Offers

KomVision

The surroundings of the machine can be displayed on the monitor by using 3 cameras installed at the sides and
rear of the machine. Press the switch F4 to select the image of the right, left and rear side view of the machine.

Offset Boom

Equipped with an offset boom with maximum boom range of 1050mm on both sides. Now it is possible to accurately and efficiently perform the side excavation work in narrow areas and walls together with the rear ultra-small turning.

Environmentally-friendly and economical

The newly developed 2.4-liter high-output engine and vehicle control improve work efficiency while achieving low fuel consumption.

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