2023 Komatsu Excavators PC138USLC-11

2023 Komatsu Excavators PC138USLC-11

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  • Year 2023
  • Make Komatsu
  • Model Excavators
  • Engine Model: SAA4D95LE-7
2023 Komatsu Excavators PC138USLC-11

2023 Komatsu Excavators PC138USLC-11

2023 Komatsu Excavators PC138USLC-11

Stability and power for tight spaces

Built for working in tight spaces like roadways, bridges or urban areas, this tight tail swing radius excavator is designed for exceptional stability, with responsive quick arm speed and a purpose-built cab for operator comfort.

Features may include:

  • Quick and powerful
  • Impressive fuel efficiency
  • Spacious and comfortable
  • Designed for exceptional stability
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
  • 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
  • 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
  • The compact counterweights provide exceptional lifting capability and stability providing a comfortable, confident operating experience.
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.

Engine

Engine Manufacturer Komatsu
Engine Model: SAA4D95LE-7
Engine Type Water-cooled, 4-cycle, direct injection
Aspiration Variable flow, turbocharged, air-to-air aftercooled
Cylinder Liners 4
Bore 3.74 in
Stroke 4.53 in
Displacement 199 in³
Engine Power SAE J1995 / Gross: 97.3 HP | ISO 9249 / SAE J1349 / Net: 97.2 HP | Fan at maximum speed /Net: 90.9 HP
Rated Engine Speed Rated: 2,050 rpm
Cooling Fan drive method for radiator cooling: Mechanical with viscous clutch

Motor

Motor Type Hydraulic motors Travel: 2 x piston motor with parking brake | Hydraulic motors Swing: 1 x piston motor with swing holding brake

Drivetrain

Governor All-speed control, electronic
Steering control: Two levers with pedals
Drive System method: Fully hydrostatic | Swing Driven by: Hydraulic motor

Brakes

Brake System Type Hydraulic lock
Parking Brake Wet, multiple-disc

Operational

Operating Conditions Maximum drawbar pull: 27,560 lbf. | Gradeability: 70%, 35° | Swing torque: 21,627 ft.-lbs.
Operating Speed Maximum travel speed: High: 3.2 mph / Low: 1.8 mph | Swing: 11.0 rpm
Ground Pressure Triple-Grouser 20 in: 6.57 psi | Triple-Grouser 24 in: 5.49 psi | Triple-Grouser 28 in: 4.77 psi

Performance

Noise Level Exterior – ISO 6395: 101 dB(A) | Operator – ISO 6396: 71 dB(A)

Hydraulics

Hydraulic Type HydrauMind (Hydraulic Mechanical Intelligence) system, closed-center system with load sensing valve and pressure compensated valve | Number of selectable working modes: 6
Pump Type Main pump: Type: Variable capacity piston type / Pumps for: Boom, arm, bucket, swing, and travel circuits
Hydraulic Flow Maximum flow: 64 US gpm | Maximum Auxiliary Flow at 3,553 psi: 64 US gpm
Maximum Pressure Implement circuits: 5,050 psi | Travel circuit: 5,050 psi | Swing circuits: 4,240 psi | Pilot circuit: 470 psi

Chassis

Frame Type Center frame: X-leg frame | Track frame: Box-section

Dimensions

Bore Hydraulic cylinders/Number of cylinders: (Boom / 2: 4.1 in | Arm / 1: 4.3 in | Bucket / 1: 3.7 in)
Stroke Hydraulic cylinders/Number of cylinders: (Boom / 2: 41.5 in | Arm / 1: 46.3 in | Bucket / 1: 34.8 in)
Dimensions Hydraulic cylinders/Number of cylinders rod diameter: (Boom / 2: 2.76 in | Arm / 1: 2.95 in | Bucket / 1: 2.56 in)

Capacities

Fuel Capacity tank: 52.8 US gal | Engine: 3.0 US gal | Final drive, each side: 0.55 US gal | Swing drive: 0.7 US gal | DEF tank: 3.3 US gal
Cooling System 4.6 US gal
Hydraulic Capacity tank: 18.2 US gal

Weights

Weight, In Running Order Triple-Grouser 20 in: 34,563 lbs. | Triple-Grouser 24 in: 35,673 lbs. | Triple-Grouser 28 in: 35,114 lbs.

Features

Features Swing reduction: Planetary gear | Swing circle lubrication: Grease-bathed | Swing lock: Wet, multiple-disc brake | Track type: Sealed track | Track adjuster: Hydraulic | Number of shoes: 46 each side | Number of carrier rollers: 2 each side | Number of track rollers: 8 each side

Product Photography