2024 Komatsu Excavators PC390LC-11
- Year 2024
- Make Komatsu
- Model Excavators
- Engine Model: SAA6D114E-6
2024 Komatsu Excavators PC390LC-11
2024 Komatsu Excavators PC390LC-11
High production earthmoving from an excavator designed to be easily transportable.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.
Features may include:
Large displacement high efficiency pump- Large displacement hydraulic implement pumps provide high flow output at lower engine RPM, operation at the most efficient engine speed.
- Smooth operation, quick cycle times, great multi-function, while lowering fuel consumption from closed-center load-sensing hydraulic system.
- Equipment designed for long-term durability with high resistance to bending and torsional stress. Booms and arms are constructed with thick plates of high tensile strength streel and designed with large cross-sectional areas.
- A heavy-duty aftertreatment system that combines a Komatsu Diesel Particulate Filter (KDPF) and selective catalytic reduction (SCR). The system injects the correct amount of diesel exhaust fluid at the proper rate, decomposing nitrogen oxide.
- Engine oil check and filter locations integrated into one side to allow easier maintenance access.
- Wide spacious cab includes a heated air suspension seat with reclining backrest. Seat height and position are easily adjusted using a pull-up lever. Armrest position easily adjusted with the console.
Engine
Engine Manufacturer
Komatsu
Engine
Model: SAA6D114E-6
Cooling
Water-cooled | Fan drive method for radiator cooling: Mechanical
Cylinder Liners
6
Bore
4.49 in | Hydraulic cylinders Boom: 5.5 in | Hydraulic cylinders Arm: 6.3 in | Hydraulic cylinders Bucket / 1 - for 0 ft. 5 in and 13 ft. 2 in Arms: 5.5 in | Hydraulic cylinders Bucket / 1 - for 8 ft. 4 in Arm: 5.9 in
Stroke
5.69 in | Hydraulic cylinders Boom: 58.3 in | Hydraulic cylinders Arm: 71.9 in | Hydraulic cylinders Bucket / 1 - for 0 ft. 5 in and 13 ft. 2 in Arms: 50.6 in | Hydraulic cylinders Bucket / 1 - for 8 ft. 4 in Arm: 50.6 in
Displacement
Piston: 540 in³
Engine Power
SAE J1995 - Gross: 271 HP | ISO 9249/SAE J1349 - Net: 257 HP
Rated Engine Speed
1,950 rpm
Engine Type
4-cycle,
Aspiration
Komatsu Variable Geometry Turbocharger with air-to-air aftercooler and EGR
Lubrication
Swing circle lubrication: Grease-bathed
Engine Torque, Maximum
Swing torque: 82,313 ft.-lbs.
Motor
Motor Type
Travel: 2 x axial piston motor with parking brake | Swing: 1 x axial piston motor with swing holding brake
Fuel System
Fuel Injection
direct
Drivetrain
Governor
All-speed control, electronic.
Steering
control: Two levers with pedals
Drive System
method: Hydrostatic | Swing System method: Hydrostatic motor
Brakes
Brake System Type
Hydraulic lock | Swing brake: Hydraulic lock | Holding brake/Swing lock: Mechanical disc brake
Parking Brake
Mechanical disc brake
Operational
Operating Conditions
Gradeability: 70%, 35° | Maximum drawbar pull: 73,880 lbf.
Operating Speed
High: 2.7 mph | Mid: 2.2 mph | Low: 1.7 mph | Swing: 9.5 rpm
Ground Pressure
Shoes 28 in: 8.66 psi | Shoes 31.5 in: 7.67 psi | Shoes 33.5 in: 6.90 psi
Hydraulics
Pump Type
Variable displacement piston type | Pumps for: Boom, arm, bucket, swing, and travel circuits | Supply for control circuit: Self-reducing valve
Hydraulic Flow
Maximum flow: 141 US gpm
Relief Valve Setting
Implement circuits: 5,400 psi | Travel circuit: 5,400 psi | Swing circuit: 4,050 psi | Pilot circuit: 470 psi
Chassis
Frame Type
Center frame: X-frame | Track frame: Box-section
Dimensions
Dimensions
Hydraulic cylinders Boom (rod diameter): 3.9 in | Hydraulic cylinders Arm (rod diameter): 4.3 in | | Hydraulic cylinders Bucket / 1 - for 0 ft. 5 in and 13 ft. 2 in Arms (rod diameter): 3.9 in | Hydraulic cylinders Bucket / 1 - for 8 ft. 4 in Arm (rod diameter): 4.3 in
Capacities
Fuel Capacity
Engine: 10.2 US gal | tank: 159.8 US gal | Final drive (each side): 2.8 US gal | Swing drive: 3.7 US gal | Diesel Exhaust Fluid (DEF) tank: 10.3 US gal
Hydraulic Capacity
49.7 US gal
Cooling System
9.7 US gal
Weights
Weight, In Running Order
Shoes 28 in: 87,867 lbs. | Shoes 31.5 in: 88,976 lbs. | Shoes 33.5 in: 89,940 lbs.
Features
Track Type
Sealed | adjuster: Hydraulic
Features
Swing reduction: Planetary gear | Number of shoes (each side): 49 | Number of carrier rollers (each side): 2 | Number of track rollers (each side): 8