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Excavators

PC138USLC-11 Non Tier 4

Crawler excavators

  • Engine power (HP) 97
  • Engine power (kW) 72

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Same PC138. No DEF.

When you need high productivity and plenty of digging power in confined spaces, our PC138USLC-11 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 Australia-wide service and support network.

  • No DEF required, eliminating AdBlue® handling, storage and refilling.
  • Proven Komatsu performance, offering powerful hydraulics with dependable productivity.
  • Tight tail swing design, ideal for confined and urban worksites.
  • Fuel-efficient operation for optimised working modes and advanced hydraulic control.

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Features and benefits

Short implement swing radius

Short implement swing radius

Get greater clearance when space is limited with a higher boom raise angle than our standard excavator that reduces the minimum front implement swing radius.

Short tail swing radius

Short tail swing radius

Get more done in confined areas with the short tail swing radius that allows the machine to work in more spaces than our conventional excavator.

Rounded cab design with sliding door

Rounded cab design with sliding door

High maneuverability is achieved through the purpose-built cabs that swings within the same radius as the counterweight. The sliding cab door allows operators to easily enter and exit when space is limited.

Stable platform

Stable platform

The compact counterweights provide exceptional lifting capability and stability providing a comfortable, confident operating experience.

Arm quick return valve

Arm quick return valve

Help improve efficiency with the quick return valve that directs additional oil through a second line directly back to the tank when the arm is extended, helping to reduce back pressure and fuel consumption.

Efficient hydraulic system

Efficient hydraulic system

For quick response to operator demands, the closed-center loading system (CLSS) helps improve fuel efficiency. Pilot proportional control (PPC) hydraulics and optional proportional joysticks provide exceptional control.


Specifications

Metric Imperial (US)
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  • Operating weight features (ft): Operating weight includes 15 ft. 1 in one-piece boom, 8 ft. 2 in arm, SAE heaped 0.67 yd3 backhoe bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.
  • Operating weight features (mm): Operating weight includes 4 600 mm one-piece boom, 2 500 mm arm, SAE heaped 0.51 m3 backhoe bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.

  • Triple grouser shoes

    • Ground pressure with triple grouser 500 mm (kg/cm²): 0.46
    • Ground pressure with triple grouser 500 mm (kPa): 45.3
    • Ground pressure with triple grouser 600 mm (kg/cm²): 0.39
    • Ground pressure with triple grouser 20 in (psi): 6.57
    • Ground pressure with triple grouser 600 mm (kPa): 37.86
    • Ground pressure with triple grouser 24" (psi): 5.49
    • Operating weight with triple grouser 20 in (lbs): 34563
    • Operating weight with triple grouser 500 mm (kg): 15 682
    • Operating weight with triple grouser 600 mm (kg): 15 732
    • Operating weight with triple grouser 24 in (lbs): 35673
    • Ground pressure with triple-grouser shoes 28 in (psi): 4.77
    • Ground pressure with triple-grouser shoes 700 mm (kg/cm²): 0.34
    • Ground pressure with triple-grouser shoes 700 mm (kPa): 32.9
    • Operating weight with triple-grouser shoes 28 in (lbs): 35114
    • Operating weight with triple-grouser shoes 700 mm (kg): 15 932

  • HydrauMind Type: HydrauMind (Hydraulic Mechanical Intelligence) system, closed-center system with load sensing valve and pressure compensated valve

  • Relief valve setting

    • Travel: 2 x piston motor with parking brake
    • Swing: 1 x piston motor with swing holding brake
    • Implement circuits (psi): 5050
    • Maximum Auxiliary Flow at 250 kgf/cm² (L/min): 242
    • Travel circuit (psi): 5050
    • Implement circuits (MPa): 34.8
    • Swing circuit (psi): 4240
    • Implement circuits (kgf/cm²): 355
    • Pilot circuit (psi): 470
    • Max auxiliary flow rate at 3,553 psi (gpm): 64
    • Pilot circuit (kgf/cm²): 33
    • Pilot circuit (MPa): 3.2
    • Swing circuit (kgf/cm²): 298
    • Swing circuit (MPa): 29.2
    • Travel circuit (kgf/cm²): 355
    • Travel circuit (MPa): 34.8

  • Main pump

    • Pumps for: Boom, arm, bucket, swing, and travel circuits
    • Variable Type: Variable capacity piston type
    • Maximum flow (L/min): 242 
    • Maximum flow (US gpm): 64
    • Main pumps for: Boom, arm, bucket, swing, and travel circuits

  • Hydraulic cylinders

    • Boom (Number of cylinders – bore x stroke x rod diameter)(in): 4.1 x 41.5 x 2.76
    • Boom (Number of cylinders – bore x stroke x rod diameter)(mm): 105 x 1 055 x 70
    • Arm (Number of cylinders – bore x stroke x rod diameter)(in): 4.3 x 46.3 x 2.95
    • Arm (Number of cylinders – bore x stroke x rod diameter)(mm): 110 x 1 175 x 75
    • Bucket (Number of cylinders – bore x stroke x rod diameter)(in): 3.7 x 34.8 x 2.56
    • Bucket (Number of cylinders – bore x stroke x rod diameter)(mm): 95 x 885 x 65

  • 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): 78
  • 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): 1980

  • Cooling type: Water-cooled, 4-cycle, direct injection
  • Aspiration: Variable flow, turbocharged, air-to-air aftercooled
  • Bore (mm): 95
  • Bore (in): 3.74
  • Stroke (mm): 115
  • Stroke (in): 4.53
  • Piston displacement (in³): 199
  • Piston displacement (L): 3.26
  • Engine Rated (rpm): 2050
  • Governor: All-speed control, electronic
  • Fan drive method for radiator cooling: Mechanical with viscous clutch

  • Horsepower

    • SAEJ1995 - Gross (HP): 97.3
    • SAEJ1995 - Gross (kW): 72.6
    • ISO 9249 / SAE J1349 - Net (HP): 97.2
    • ISO 9249 / SAE J1349 - Net (kW): 72.5
    • Fan at maximum speed - Net (HP): 90.9
    • Fan at maximum speed - Net (kW): 67.8

  • Pilot circuit (kgf/cm³): 33

  • Center frame: X-leg frame
  • Track frame: Box-section
  • Track adjuster: Hydraulic
  • Number of shoes (each side): 46
  • Number of carrier rollers (each side): 2
  • Number of track rollers (each side): 8
  • Seal of track: Sealed

  • Drive method type: Fully hydrostatic
  • Maximum drawbar pull (lbf): 27560
  • Maximum drawbar pull (kgf): 123 kN 12 500 kgf 
  • Service brake type: Hydraulic lock
  • Parking brake: Wet, multiple-disc
  • Gradeability: 70%, 35°

  • Maximum travel speed

    • High (kph): 5.1
    • High (mph): 3.2
    • Low (mph): 1.8
    • Low (kph): 2.9

  • Fuel tank (US gal): 52.8
  • Coolant (US gal): 4.6
  • Engine (US gal): 3
  • Final drive (US gal): 0.55
  • Swing drive (L): 2.5
  • Swing drive (US gal): 0.7
  • Hydraulic tank (L): 69
  • Hydraulic tank (US gal): 18.2
  • Fuel tank (l): 200
  • Engine (L): 11.5
  • Coolant (L): 17.7
  • Final drive (L): 2.1

  • Drive method: Hydraulic motor
  • 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
  • Swing torque (kg-m): 2 991
  • Swing torque (ft-lbs): 21627
  • Driven by: Hydraulic motor

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

  • Exterior – ISO 6395 (dB(A)): 101
  • Operator – ISO 6396 (dB(A)): 71