KOMATSU PC390 LC-11
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Year
2024
Manufacturer
Komastu
Model
PC390 LC-11
Condition
New
Location
Ontario
The large undercarriage design of the PC390LC-11 large hydraulic excavator increases over-side lift capacity and stability in applications that require long arms or heavy attachments. It’s ideally sized for high production earthmoving applications while being easily transportable.
Large high-strength steel castings on the boom, arm and bucket link
Closed-center load-sensing hydraulics for precise, fine control
Large displacement high-efficiency pumps provide optimal attachment flow
Large, spacious, quiet cab featuring standard air suspension seat
Large high-strength steel castings on the boom, arm and bucket link
Closed-center load-sensing hydraulics for precise, fine control
Large displacement high-efficiency pumps provide optimal attachment flow
Large, spacious, quiet cab featuring standard air suspension seat
Engine
| Model | Komatsu SAA6D114E-6* |
| Type | Water-cooled, 4-cycle, direct injection |
| Aspiration | Komatsu Variable Geometry Turbocharger with air-to-air aftercooler and EGR |
| Number of cylinders | 6 |
| Bore | 4.49 in |
| Stroke | 5.69 in |
| Piston displacement | 540 in³ |
| Horsepower: | |
| SAE J1995 - Gross | 271 HP |
| ISO 9249/SAE J1349 - Net | 257 HP |
| Rated rpm | 1,950 |
| Governor | All-speed control, electronic. |
| Fan drive method for radiator cooling | Mechanical |
| *EPA Tier 4 Final emissions certified |
Hydraulics
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 | 141 US gpm |
| 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 | 5,400 psi |
| Travel circuit | 5,400 psi |
| Swing circuit | 4,050 psi |
| Pilot circuit | 470 psi |
| Hydraulic cylinders: | |
| Number of cylinders | Bore x Stroke x Rod Diameter |
| Boom / 2 | 5.5 x 58.3 x 3.9 in |
| Arm / 1 | 6.3 x 71.9 x 4.3 in |
| Bucket / 1 - for 0 ft. 5 in and 13 ft. 2 in Arms | 5.5 x 50.6 x 3.9 in |
| Bucket / 1 - for 8 ft. 4 in Arm | 5.9 x 50.6 x 4.3 in |
Drives and Brakes
| Steering control | Two levers with pedals |
| Drive method | Hydrostatic |
| Maximum drawbar pull | 73,880 lbs. |
| Gradeability | 70%, 35° |
| Maximum travel speed: (Auto-Shift) | |
| High | 2.7 mph |
| Mid | 2.2 mph |
| Low | 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 | 82,313 ft.-lbs. |
Undercarriage
| 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 & Lubricant Capacity (Refilling)
| Fuel tank | 159.8 US gal |
| Coolant | 9.7 US gal |
| Engine | 10.2 U.S. gal |
| Final drive, each side | 2.8 US gal |
| Swing drive | 3.7 US gal |
| Hydraulic tank | 49.7 US gal |
| Diesel Exhaust Fluid (DEF) tank | 10.3 US gal |
Operating Weight (Approximate)
Operating weight includes 21 ft. 3 in one-piece HD boom, 10 ft. 5 in arm, SAE heaped 2.53 yd3 bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.
| Shoes | 28 in |
| Operating Weight | 87,867 lbs. |
| Ground Pressure | 8.66 psi |
| Shoes | 31.5' in |
| Operating Weight: | 88,976 lbs. |
| Ground Pressure | 7.67 psi |
| Shoes | 33.5 in |
| Operating Weight: | 89,940 lbs. |
| Ground Pressure | 6.90 psi |
Cab
- ROPS cab (ISO12117-2)
- High back air suspension seat, with heat
- Operator Protective Guard (OPG) Level 1 top guard
- Large LCD high resolution color monitor
- Automatic climate control
- Retractable seat belt (76 mm width) with indicator
- Two 12V accessory outlets
- Rearview mirrors, right hand and left hand side
- Rearview monitoring system (1 camera)
- Travel alarm
- Operator identification system
- Hydraulic lock lever
- Skylight
Engine
- Komatsu SAA6D114E-6 Tier 4 Final
- Dry type air cleaner, double element
- Fuel pre-filter with water separator
- Fuel high efficiency filter
- Automatic engine warm up system
- Programmable auto-idle shut down
- Overheat prevention system
- Turbocharger protection system
Hydraulic controls
- Pattern change control valve (ISO to BH control)
- Working mode selection system (6 modes)
- Dual pump, Closed Center Load Sensing System (CLSS)
- Auto-deceleration system
- Power max system
- Boom and arm holding valves
- Two boom mode settings
Technology
- Komtrax level 5.0
Electrical system
- Batteries, large capacity (2 x 12 volt)
- Battery master disconnect switch with lockout tagout
- Alternator (90Amp, 24Volt)
- Starter motor (11 kW)
- Secondary engine shut off switch
- Working lights (1 front RH side / 1 boom LH side)
Booms and arms
- 6500 mm (21'3") HD boom assembly
- 3185 mm (10'5") arm assembly
- Boom foot, boom nose, and arm end steel castings
Undercarriage and work equipment
- 800 mm (31.5") triple grouser track shoes
- 8 track / 2 carrier rollers (each side)
- Hydraulic track adjusters (each side)
- Track guiding guards, center section (each side)
- Counterweight, 6,920 kg (15,255 lbs.)
- Object handling H-link
- 228 mm (9") track pitch
Guards and covers
- Revolving frame deck guards
- Revolving frame undercovers
- Track frame swivel guard
- Pump / engine room partition
- Turbocharger exhaust manifold cover
- Dust net for radiator and hydraulic oil cooler
- Slip resistant foot plates
- Tool free access to engine and aftertreatment
- Left and right side hand rails
Drive and brake system
- Three speed travel with auto shift
- Double reduction type final drive
- Triple labyrinth final drive seals
*IMU for auto-tilt control required for operation
**With revolving frame reinforcements, Only available with super long fronts
For a complete list of available attachments, please contact your local Komatsu distributor.
Cab
- Proportional joystick control levers
- Sunvisor
- Rainvisor
- Working lights, two additional cab mounted
- Straight travel pedal
Hydraulic controls
- Boom and arm +1 attach piping
- One way/two way flow hyd control unit
Variable pressure, return filter, & accumulator
Booms and arms
- 6500 mm (21'3") HD boom assembly with +1 attach piping
- 3185 mm (10'5") arm assembly with +1 attach piping
- 4020 mm (13'2") arm assembly
- 4020 mm (13'2") arm assembly with +1 attach piping
Undercarriage and work equipment
- 900 mm (35") triple grouser track shoes
- 700 mm (28") triple grouser track shoes
- Track roller guards, full length (each side)
- Counterweight, 7,400 kg (16,315 lbs.)**
Guards and covers
- Cab full front guard, OPG Level 1
- Cab full front guard, OPG Level 2
- Cab top guard, OPG Level 2
- Revolving frame undercovers - heavy duty
- Revolving frame undercovers - severe duty
*IMU for auto-tilt control required for operation
**With revolving frame reinforcements, Only available with super long fronts
For a complete list of available attachments, please contact your local Komatsu distributor.
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