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Mid-size excavator

PC238USLC-11

  • Horsepower 123 kW @ 2 000 rpm 165 HP @ 2,000 rpm
  • Operating weight 24 598 - 25 247 kg 54,230 - 55,660 lbs.
  • Bucket capacity 0.50 - 1.20 m³ 0.66 - 1.57 yd³

Performance where space is limited

The power and stability you need in a compact and easy-to-transport package. Designed to excel in underground utility or general construction in urban environments, this short tail swing excavator is at home in tight spaces.

  • Quick and powerful
  • Impressive fuel efficiency
  • Spacious and comfortable
  • Designed for exceptional stability

Features and benefits

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.

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 for PC238USLC-11

Close all Expand all
US system Metric
Engine
Model Komatsu SAA6D107E-3*
Type Water-cooled, 4-cycle, direct injection
Aspiration Komatsu Variable Geometry Turbo air-to-air aftercooled
Number of cylinders 6
Bore 107 mm
Stroke 124 mm
Piston displacement 6.69 L
Horsepower:
   SAE J1995 / Gross 123 kW
   ISO 9249 / SAE J1349 / Net 123 kW
   Fan at maximum speed / Net
116 kW
   Rated rpm 2 000
Fan drive method for radiator cooling Mechanical with viscous fan clutch
Governor All-speed control, electronic
Lubrication system:
   Method Gear pump, force-lubrication
   Filter
Full-flow
Air cleaner Air cleaner, double element and auto dust evacuator

*EPA Tier 4 Final emissions certified

Model Komatsu SAA6D107E-3*
Type Water-cooled, 4-cycle, direct injection
Aspiration Komatsu Variable Geometry Turbo air-to-air aftercooled
Number of cylinders 6
Bore 4.21 in
Stroke 4.88 in
Piston displacement 408 in³
Horsepower:
   SAE J1995 / Gross 165 HP
   ISO 9249 / SAE J1349 / Net 165 HP
   Fan at maximum speed / Net
156 HP
   Rated rpm 2,000
Fan drive method for radiator cooling Mechanical with viscous fan clutch
Governor All-speed control, electronic
Lubrication system:
   Method Gear pump, force-lubrication
   Filter
Full-flow
Air cleaner Air cleaner, double element and auto dust evacuator

*EPA Tier 4 Final emissions certified

Hydraulics

Type: Closed-center system with load sensing valve and pressure compensated valve

Main pump:  
Type Variable capacity piston type
Pumps for Boom, arm, bucket, swing, and travel circuits
Maximum flow 475 L/min
Hydraulic motors:  
Travel 2 x piston motor with parking brake
Swing 1 x axial piston motor with swing holding brake
Relief valve setting:  
Implement circuits 37.3 MPa 380 kgf/cm²
Travel circuits 37.3 MPa 380 kgf/cm²
Swing circuits 29.4 MPa 299 kgf/cm²
Pilot circuit 3.2 MPa 33 kgf/cm²
Hydraulic cylinders:
(Number of cylinders – bore x stroke x rod diameter)
 
Boom / 2 130 x 1385 x 90 mm
Arm / 1 135 x 1490 x 95 mm
Bucket / 1 115 x 1120 x 80 mm

Type: Closed-center system with load sensing valve and pressure compensated valve

Main pump:  
Type Variable capacity piston type
Pumps for Boom, arm, bucket, swing, and travel circuits
Maximum flow 125.5 gpm
Hydraulic motors:  
Travel 2 x piston motor with parking brake
Swing 1 x axial piston motor with swing holding brake
Relief valve setting:  
Implement circuits 5,400 psi
Travel circuits 5,400 psi
Swing circuits 4,264 psi
Pilot circuit 470 psi
Hydraulic cylinders:
(Number of cylinders – bore x stroke x rod diameter)
 
Boom / 2 5.11 x 54.5 x 3.5 in
Arm / 1 5.3 x 58.7 x 3.7 in
Bucket / 1 4.5 x 44.1 x 3.2 in
Drives and Brakes
Steering control Two-lever with pedals
Drive method Fully hydrostatic
Maximum drawbar pull 202 kN 20 600 kgf
Maximum travel speed:  
   High 5.5 kph
   Mid 4.1 kph
   Low 3.0 kph
Gradeability 70%, 35°
Service brake Hydraulic lock
Parking brake Mechanical disc
Steering control Two-lever with pedals
Drive method Fully hydrostatic
Maximum drawbar pull 45,410 lbs.
Maximum travel speed:  
   High 3.4 mph
   Mid 2.5 mph
   Low 1.9 mph
Gradeability 70%, 35°
Service brake Hydraulic lock
Parking brake Mechanical disc
Swing System
Driven by Hydraulic motor
Swing reduction Planetary gear
Swing circle lubrication Grease-bathed
Swing lock Mechanical disc brake
Swing speed 11.0 rpm
Swing torque 6 656 kg-m
Driven by Hydraulic motor
Swing reduction Planetary gear
Swing circle lubrication Grease-bathed
Swing lock Mechanical disc brake
Swing speed 11.0 rpm
Swing torque 48,124 ft.-lbs.
Undercarriage
Center frame X-frame leg
Track frame Box-section
Track type Sealed
Track adjuster Hydraulic
Number of shoes (each side): 49
Number of carrier rollers (each side): 2
Number of track rollers (each side): 9
Center frame X-frame leg
Track frame Box-section
Track type Sealed
Track adjuster Hydraulic
Number of shoes (each side): 49
Number of carrier rollers (each side): 2
Number of track rollers (each side): 9
Sound Performance
Exterior – ISO 6395 100 dB(A)
Operator – ISO 6396 71 dB(A)
Exterior – ISO 6395 100 dB(A)
Operator – ISO 6396 71 dB(A)
Coolant & Lubricant Capacity (Refilling)
Fuel tank 290 L
Radiator 28.3 L
Engine 23.1 L
Final drive, each side 5.0 L
Swing drive 6.5 L
Hydraulic tank 126 L
DEF tank 13 L
Fuel tank 76.6 US gal
Radiator 7.6 US gal
Engine 6.1 US gal
Final drive, each side 1.4 US gal
Swing drive 1.7 US gal
Hydraulic tank 33.3 US gal
DEF tank 3.4 US gal
Operating Weight (Approximate)

Operating weight including 5 700 mm one-piece boom, 2 925 mm arm, SAE heaped 0.85 m3 bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.

Shoes Operating Weight Ground Pressure
Road Liner 600 mm 24 600 kg
51.1 kPa 0.52 kg/cm²
700 mm
24 870 kg
44.29 kPa 0.45 kg/cm²
800 mm
25 150 kg
39.19 kPa 0.39 kg/cm²

Operating weight including 18 ft. 8 in one-piece boom, 9 ft. 7 in arm, SAE heaped 1.11 yd3 bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.

Shoes Operating Weight Ground Pressure
Road Liner 24 in 54,230 lbs. 7.41 psi
28 in 54,825 lbs. 6.42 psi
31.5 in 55,440 lbs. 5.68 psi

ENGINE

  • Automatic engine warm-up system
  • Dry type air cleaner, double element
  • Engine, Komatsu SAA6D107E-3
  • Engine overheat prevention system
  • Fuel pre-filter (With water separator)

ELECTRICAL SYSTEM

  • Alternator, 21 V/85 A
  • Auto-decelerator
  • Batteries, large capacity
  • Converter, 12 V
  • Electric horn
  • Starting motor, 24 V/5.5 kW
  • Working light, 3 (Boom and cab)

HYDRAULIC SYSTEM

  • Arm holding valve
  • Boom holding valve
  • Pattern change valve (ISO to BH)
  • Pressure Proportional Control (PPC) hydraulic control system
  • Power maximizing system
  • Service valve (1 additional)
  • Three Speed travel with auto shift
  • Working mode selection system

GUARDS AND COVERS

  • Fan guard structure
  • Pump/engine partition cover
  • Revolving frame undercovers
  • Track frame undercover
  • Track roller guard, center section

UNDERCARRIAGE

  • Hydraulic track adjusters (Each side)
  • Track rollers, 9 each side
  • Track shoe, 700 mm triple grouser

OPERATOR ENVIRONMENT

  • A/C with defroster
  • AM/FM radio
  • Auxiliary input (3.5 mm jack)
  • High back suspension seat wth heat
  • Large high resolution LCD monitor
  • Lock lever
  • Mirrors (RH, LH, sidewise)
  • Operator protective top guard, OPG level 1 (ISO 10262)
  • Rear view monitor system
  • ROPS cab (ISO 12117-2)
  • Seat belt, retractable
  • Skylight

OTHER EQUIPMENT

  • Battery disconnect switch
  • Cooling fan, suction type with viscous clutch
  • Counterweight, 6720 kg 
  • Engine shutdown secondary switch
  • Equipment Management Monitoring System
  • KOMTRAX
  • Radiator and oil cooler dust proof net
  • Rear reflector
  • Slip-resistant plates
  • Travel alarm

ENGINE

  • Automatic engine warm-up system
  • Dry type air cleaner, double element
  • Engine, Komatsu SAA6D107E-3
  • Engine overheat prevention system
  • Fuel pre-filter (With water separator)

ELECTRICAL SYSTEM

  • Alternator, 21 V/85 A
  • Auto-decelerator
  • Batteries, large capacity
  • Converter, 12 V
  • Electric horn
  • Starting motor, 24 V/5.5 kW
  • Working light, 3 (Boom and cab)

HYDRAULIC SYSTEM

  • Arm holding valve
  • Boom holding valve
  • Pattern change valve (ISO to BH)
  • Pressure Proportional Control (PPC) hydraulic control system
  • Power maximizing system
  • Service valve (1 additional)
  • Three Speed travel with auto shift
  • Working mode selection system

GUARDS AND COVERS

  • Fan guard structure
  • Pump/engine partition cover
  • Revolving frame undercovers
  • Track frame undercover
  • Track roller guard, center section

UNDERCARRIAGE

  • Hydraulic track adjusters (Each side)
  • Track rollers, 9 each side
  • Track shoe, 28" triple grouser

OPERATOR ENVIRONMENT

  • A/C with defroster
  • AM/FM radio
  • Auxiliary input (3.5 mm jack)
  • High back suspension seat wth heat
  • Large high resolution LCD monitor
  • Lock lever
  • Mirrors (RH, LH, sidewise)
  • Operator protective top guard, OPG level 1 (ISO 10262)
  • Rear view monitor system
  • ROPS cab (ISO 12117-2)
  • Seat belt, retractable
  • Skylight

OTHER EQUIPMENT

  • Battery disconnect switch
  • Cooling fan, suction type with viscous clutch
  • Counterweight, 14,815 lb
  • Engine shutdown secondary switch
  • Equipment Management Monitoring System
  • KOMTRAX
  • Radiator and oil cooler dust proof net
  • Rear reflector
  • Slip-resistant plates
  • Travel alarm

HYDRAULIC SYSTEM

  • Hydraulic control unit
    —One additional actuator
  • Proportional control handles

GUARDS AND COVERS

  • Cab guards
    —Full front guard, OPG level 1 (ISO 10262)
    —Full front guard, OPG level 2 (ISO 10262)
    —Bolt-on top guard, OPG level 2 (ISO 10262)
    —Lower front window guard

UNDERCARRIAGE

  • Shoes
    —800 mm triple grouser
    —600 mm road liner

OPERATOR ENVIRONMENT

  • Cab accessories
    —Rain visor
    —Sun visor

OTHER EQUIPMENT

  • KomVision
  • Right side view monitor system
  • Working light, two on cab

WORK EQUIPMENT

  • Arms
    —2925 mm arm assembly
    —2925 mm arm assembly with piping
  • Booms
    —5700 mm HD boom assembly
    —5700 mm HD boom assembly with piping

HYDRAULIC SYSTEM

  • Hydraulic control unit
    —One additional actuator
  • Proportional control handles

GUARDS AND COVERS

  • Cab guards
    —Full front guard, OPG level 1 (ISO 10262)
    —Full front guard, OPG level 2 (ISO 10262)
    —Bolt-on top guard, OPG level 2 (ISO 10262)
    —Lower front window guard

UNDERCARRIAGE

  • Shoes
    —31.5" triple grouser
    —24" road liner

OPERATOR ENVIRONMENT

  • Cab accessories
    —Rain visor
    —Sun visor

OTHER EQUIPMENT

  • KomVision
  • Right side view monitor system
  • Working light, two on cab

WORK EQUIPMENT

  • Arms
    —9'7" arm assembly
    —9'7" arm assembly with piping
  • Booms
    —18'8" HD boom assembly
    —18'8" HD boom assembly with piping
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