• 87,867 - 90,441 lbs Operating Weight
  • 257 @1950 rpm Horsepower
  • 0.89 - 2.91 yd³ Bucket Capacity

PC390LC-11 Large Excavator


Large Undercarriage Design significantly increases overside lift capacity and provides exceptional stability in applications that require long arms or heavy attachments.

Power Mode with enhanced engine and hydraulic pump control logic provides greater hydraulic power and speed for faster cycle times, improved multifunction performance and up to 12% greater productivity than the previous model.

PC390LC-11 Walkaround  >


Enhanced Productivity

The PC390LC-11's enhanced P Mode provides improved performance in demanding applications.

Up to 12% increase

(compared to the PC390LC-10 in P Mode)

Robust Undercarriage

The undercarriage is designed using larger size class components to provide improved reliability, good over the side lift capacity and long component life.

Large digging force

With the one-touch Power Max. function, digging force is increased for 8.5 seconds of operation.

Maximum arm crowd force (ISO) — 7% UP

Maximum bucket digging force (ISO) — 7% UP

Measured with Power Max. function, 3185 mm arm and ISO rating

Faster arm cycle speeds

Two return hoses improve arm cylinder hydraulic flow for faster arm out performance.

Two-mode settings for boom

  • Smooth boom mode provides easy operation for gathering material or scraping down
  • Power boom mode maximizes digging force for more effective excavating

Lifting mode

When the Lifting mode is selected, lifting capacity is increased 7% by raising hydraulic pressure.

Wide spacious cab

Wide spacious cab includes seat with reclining backrest. The seat height and longitudinal inclination are easily adjusted using a pull-up lever. You can set the appropriate operational posture of armrest together with the console. Reclining the seat further enables you to place it into the fully flat state with the headrest attached.

Diesel Exhaust Fluid (DEF) tank

A large tank volume extends operating time before refilling and is installed on the right front platform for easy access.

Working Mode Selection

The PC390LC-11 excavator is equipped with six working modes (P, E, L, B, ATT/P and ATT/E). An enhanced Power Mode provides improved performance in demanding applications. Each mode is designed to match engine speed, pump flow, and system pressure to the application. The PC390LC-11 features an attachment mode (ATT/E) that allows operators to run attachments while in Economy mode.

Working Mode Application Advantage
P Power Mode
Maximum production/power
Fast cycle times
Economy mode Good cycle times
Better fuel economy
Lifting mode Increases hydraulic pressure
B Breaker mode Optimum engine rpm, hydraulic flow
Power mode
Optimum engine rpm, hydraulic flow, 2-way
Power mode
Economy mode
Optimum engine rpm, hydraulic flow, 2-way
Economy mode



Komatsu SAA6D114E-6*
Water-cooled, 4-cycle, direct injection
Komatsu Variable Geometry Turbocharger with air-to-air aftercooler and EGR
Number of cylinders
Bore 114 mm 4.49"
Stroke 144.5 mm 5.69"
Piston displacement 8.85 ltr 540 in³

SAE J1995 - Gross 202 kW 271 HP
ISO 9249/SAE J1349 - Net 192 kW 257 HP
Rated rpm
All-speed control, electronic.
Fan drive method for radiator cooling
*EPA Tier 4 Final emissions certified


Type: HydrauMind (Hydraulic Mechanical Intelligence) system, closed-center system with load sensing valve and pressure compensated valves, 6 selectable working modes

Main pump:
Pumps for   Boom, arm, bucket, swing, and travel circuits
Type Variable displacement piston type
Maximum flow 535 ltr/min 141 U.S. gal/min
Supply for control circuit Self-reducing valve
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 37.3 MPa 380 kgf/cm²
5,400 psi
Travel circuit 37.3 MPa 380 kgf/cm² 5,400 psi
Swing circuit 27.9 MPa 285 kgf/cm²
4,050 psi
Pilot circuit 3.2 MPa 33 kgf/cm²
470 psi
Hydraulic cylinders:
Number of cylinders Bore x Stroke x Rod Diameter Bore x Stroke x Rod Diameter
Boom / 2 140 mm x 1480 mm x 100 mm 5.5" x 58.3" x 3.9"
Arm / 1 160 mm x 1825 mm x 110 mm 6.3" x 71.9" x 4.3"
Bucket / 1 - for 3.2 m 10'5" and 4.0 m 13'2" Arms 140 mm x 1285 mm x 100 mm 5.5" x 50.6" x 3.9"
Bucket / 1 - for 2.54 m 8'4" Arm 150 mm x 1285 mm x 110 mm 5.9" x 50.6" x 4.3"

Drives & Brakes

Steering control Two levers with pedals
Drive method Hydrostatic
Maximum drawbar pull 329 kN  33510 kgf 73,880 lb
Gradeability 70% 35°
Maximum travel speed: (Auto-Shift)
High 4.3 km/h 2.7 mph
Mid 3.5 km/h 2.2 mph
Low 2.8 km/h 1.7 mph
Service brake Hydraulic lock
Parking brake Mechanical disc brake

Swing System

Drive method Hydrostatic motor
Swing reduction Planetary gear
Swing circle lubrication Grease-bathed
Service brake Hydraulic lock
Holding brake/Swing lock Mechanical disc brake
Swing speed 9.5 rpm
Swing torque 11386 kg•m 82,313 ft. lbs.


Center frame X-frame
Track frame Box-section
Track type Sealed
Track adjuster Hydraulic
Number of shoes 49 each side
Number of carrier rollers 2 each side
Number of track rollers 8 each side

Coolant and Lubricant Capacity (refilling)

Fuel tank 605 ltr 159.8 U.S. gal
Coolant 37 ltr 9.7 U.S. gal
Engine 39 ltr 10.2 U.S. gal
Final drive, each side 10.5 ltr 2.8 U.S. gal
Swing drive 14 ltr 3.7 U.S. gal
Hydraulic tank 188 ltr 49.7 U.S. gal
Diesel Exhaust Fluid (DEF) tank 39 ltr 10.3 U.S. gal

Operating Weight (approximate)

Operating weight includes 6500 mm 21'3" one-piece HD boom, 3185 mm 10'5" arm, SAE heaped 1.96 m3 2.53 yd3 bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.

Shoes 700 mm 28"
Operating Weight 39856 kg 87,867 lb
Ground Pressure 0.61 kg/cm² 8.66 psi
Shoes 800 mm 31.5''
Operating Weight: 40359 kg 88,976 lb
Ground Pressure 0.54 kg/cm² 7.67 psi
Shoes 850 mm 33.5"
Operating Weight: 40796 kg 89,940 lb
Ground Pressure 0.49 kg/cm² 6.90 psi


  • 3 speed travel with auto shift
  • Alternator, 90 Ampere, 24V
  • AM/FM radio
  • Arm holding valve
  • Automatic engine warm-up system
  • Automatic climate control/air conditioner/heater/defroster
  • Auto idle
  • Auto idle shut down, programmable
  • Auxiliary input (3.5mm jack)
  • Batteries, large capacity (2 x 12V)
  • Battery master disconnect switch
  • Boom holding valves
  • Carrier rollers, (2 each side)
  • Converter, (2) x 12V
  • Counterweight, 6920 kg 15,255 lb
  • Dry type air cleaner, double element
  • Electric horn
  • Engine, Komatsu SAA6D114E-6
  • Engine coolant to -25°C -13°F
  • EMMS monitoring system
  • Engine overheat prevention system
  • Extended work equipment grease interval
  • Fan guard structure
  • Fuel priming pump
  • Fuel system pre-filter 10 micron
  • Grease sealed track chain
  • High back air suspension seat, with heat
  • Hydraulic cooling fan (reversible)
  • Hydraulic track adjusters
  • KOMTRAX® Level 5.0
  • Large LCD color monitor, high resolution
  • Lock lever
  • Mirrors, (LH and RH)
  • Operator Protective Top Guard (OPG), Level 1
  • Operator identification system
  • Pattern change valve (ISO to BH control)
  • Power maximizing system
  • PPC hydraulic control system
  • Pump/engine room partition cover
  • Radiator and oil cooler dustproof net
  • Rear reflectors
  • Rearview monitoring system (1 camera)
  • Revolving frame deck guard
  • Revolving frame undercovers
  • ROPS cab (ISO12117-2)
  • Seat belt indicator
  • Seat belt, retractable, 76mm 3"
  • Secondary engine shutoff switch
  • Service valve
  • Skylight
  • Slip resistant foot plates
  • Starter motor, 11.0kW/24V x 1
  • Suction fan
  • Thermal and fan guards
  • Track frame swivel guard
  • Track roller guards, center section
  • Track rollers, 8 (each side)
  • Track shoes, triple grouser, 800mm 31.5"
  • Travel alarm
  • Two boom mode settings
  • Working lights, 2 (boom and RH front)
  • Working mode selection system     



  • 2540 mm 8'4" arm assembly
  • 3185 mm 10'5" arm assembly
  • 3185 mm 10'5" arm assembly with piping
  • 4020 mm 13'2" arm assembly
  • 4020 mm 13'2" arm assembly with piping


  • 6500 mm 21'3" HD boom assembly
  • 6500 mm 21'3" HD boom assembly with piping

Cab guards

  • Lower front window guard
  • Full front guard, OPG Level 1
  • Full front guard, OPG Level 2
  • Bolt-on top guard, OPG Level 2


  • Counterweight, 8105 kg 17,868 lb with revolving frame reinforcement
  • High pressure in-line hydraulic filters
  • Hydraulic control unit, 1 actuator
  • Proportional control handles
  • Rain visor
  • Revolving frame undercovers, heavy duty
  • Revolving frame undercovers, severe duty
  • Sun visor
  • Straight travel pedal
  • Track roller guards, full length
  • Track shoes, triple grouser, 700 mm 28"
  • Track shoes, single grouser, 900 mm 35.5"
  • Working lights, front, two additional cab mounted