Experience superior performance in high-production earthmoving applications with the PC390LC-11 large hydraulic excavator. Its large undercarriage design enhances over-side lift capacity and stability, making it ideal for tasks requiring extended arms or heavy attachments. This excavator strikes the perfect balance between size and transportability, ensuring efficiency on the job.
- 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 a standard air suspension seat
Product Features and benefits:
Efficient Hydraulic System
Benefit from large displacement hydraulic implement pumps that offer high flow output at lower engine RPM, ensuring operation at the most efficient engine speed.
Smooth Operation with Load-Sensing Hydraulics
Experience smooth operation, quick cycle times, and excellent multi-functionality while reducing fuel consumption through the closed-center load-sensing hydraulic system.
Built for Endurance
Designed for long-term durability, the equipment boasts high resistance to bending and torsional stress. Booms and arms are constructed with thick plates of high tensile strength steel, featuring large cross-sectional areas.
Eco-Friendly Emissions Control
Incorporating a heavy-duty aftertreatment system, the excavator combines a Komatsu Diesel Particulate Filter (KDPF) and selective catalytic reduction (SCR). This system injects the correct amount of diesel exhaust fluid at the proper rate, effectively decomposing nitrogen oxide for cleaner emissions.
Convenient Maintenance Access
Engine oil check and filter locations are integrated into one side, providing easy access for maintenance.
Ergonomic Design for Operator Comfort
The wide, spacious cab includes a heated air suspension seat with a reclining backrest. Seat height and position adjustments are easily made using a pull-up lever, while armrest positions can be adjusted with the console.
Information Accessibility
Access key machine information effortlessly with an updated, large, high-resolution LCD color monitor. The user-friendly interface displays crucial data, and additional features like a rearview camera and DEF level gauge enhance the default main screen.
Safety with Rollover Protection
Standard equipment includes a Rollover Protection System (ROPS) cab conforming to ISO 12117-2. It also satisfies requirements for level 1 operator protective guard (OPG) and top guard (ISO 10262).
Enhanced Productivity with Operator Identification
Maximize productivity with an operator identification ID that can be set up for each operator. This feature helps manage operation information of individual machines using Komtrax data, allowing for analysis of operation status by both operator and machine.
Fuel Consumption Optimization
Reduce fuel consumption and exhaust emissions with the auto idle shutdown feature, automatically shutting down the engine after idling for a set period. The shutdown time can be programmed from 5 to 60 minutes.
Durability in Design
Ensure durability with large, heavy-duty revolving frame guards and swivel guards that protect vital components from damage and debris buildup.
Maintenance Simplified
Provide a convenient and secure work area in front of the engine, with a new step for easier access when filling the AdBlue/DEF tank.
Product Specifications for PC390LC-11:
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 x Stroke: 4.49 in x 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:
- Type: Variable displacement piston type
- Pumps for: Boom, arm, bucket, swing, and travel circuits
- 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
- Number of cylinders / Bore x Stroke x Rod Diameter:
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
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/excavators/large-excavators/pc390lc-11
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