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Excavators

PC138US-8

Crawler excavators

  • Engine power (HP) 92
  • Engine power (kW) 68.4

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When you need high productivity and plenty of digging power in confined spaces, our PC138US-8 excavator is the perfect choice. As with all our construction excavators, key components are designed and manufactured by Komatsu to work together in an integrated package. And it comes standard with our Komtrax remote monitoring and location system, backed by our NZ-wide service and support network.

    Resources

    Short tail swing radius

    The short tail swing radius of the PC138US-8 allows the machine to work in more confined areas than a conventional machine

    Short tail swing radius

    Specifications

    Metric Imperial (US)
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    • HydrauMind Type: HydrauMind System

    • Relief valve setting

      • Travel: 2 x piston motor with parking brake
      • Swing: 1 x piston motor with swing holding brake
      • Implement circuits (psi): 5050.27
      • Travel circuit (psi): 5050
      • Implement circuits (MPa): 34.81
      • Swing circuit (psi): 3925
      • Implement circuits (kgf/cm²): 355
      • Pilot circuit (psi): 470
      • Pilot circuit (kgf/cm²): 33
      • Pilot circuit (MPa): 3.2
      • Swing circuit (kgf/cm²): 276
      • Swing circuit (MPa): 27
      • Travel circuit (kgf/cm²): 355
      • Travel circuit (MPa): 34.8

    • Main pump

      • Pumps for: Boom, arm, bucket, swing, and travel circuits
      • Maximum flow (L/min): 241.5
      • Maximum flow (US gpm): 63.79

    • Hydraulic cylinders

      • Arm (Number of cylinders – bore x stroke x rod diameter)(in): 4.33 x 46.26 x 2.95
      • Arm (Number of cylinders – bore x stroke x rod diameter)(mm): 1 - 110 x 1175 x 75

    • Bucket crowd force - ISO (kgf): 9500
    • Digging depth - maximum (mm): 5480
    • Arm crowd force - ISO (kgf): 6300
    • Maximum reach at ground level (mm): 8180
    • Swing radius (in): 58.3
    • Maximum reach at ground level (in): 322.1
    • Boom size (m) and type: 4.6 standard
    • Arm size (m) and type: 2.5 standard
    • Swing radius (mm): 1480

    • Aspiration: Variable flow, turbocharged, air-to-air aftercooled
    • Piston displacement (in³): 198.93
    • Piston displacement (L): 3.26

    • Horsepower

      • SAEJ1995 - Gross (HP): 97
      • SAEJ1995 - Gross (kW): 72.1
      • ISO 9249 / SAE J1349 - Net (HP): 91.66
      • ISO 9249 / SAE J1349 - Net (kW): 68.4

    • Center frame: X-frame leg
    • Track frame: Box-bathed
    • Track adjuster: Hydraulic
    • Number of shoes (each side): 43
    • Number of carrier rollers (each side): 1
    • Number of track rollers (each side): 7

    • Maximum drawbar pull (kgf): 12500
    • Parking brake: Wet, multiple-disc

    • Coolant (US gal): 3.28
    • Engine (US gal): 2.91
    • Swing drive (L): 2.5
    • Swing drive (US gal): 0.66
    • Hydraulic tank (L): 69
    • Hydraulic tank (US gal): 18.23
    • DEF tank (US gal): None
    • Fuel tank (l): 195
    • Engine (L): 11
    • Coolant (L): 12.4
    • DEF tank (L): None

    • Drive method: Fully hydrostatic
    • Swing reduction: Planetary gear
    • Swing circle lubrication: Grease-bathed
    • Service brake: Hydraulic lock
    • Holding brake/Swing lock: Wet, multiple-disc brake
    • Swing speed (rpm): 11
    • Driven by: Hydraulic motor

    • Overall track width (in): 98
    • Overall track width (mm): 2490