Komatsu PC390LCi-11 LARGE EXCAVATORS
Product Feature
intelligent Machine Control
Intelligent Machine Control excavator with semi-automatic control allows the operator to improve work efficiency as compared to conventional aftermarket machine guidance (indicate only) or manual operation. Rough digging to finish grading, intelligent Machine Control minimizes over-excavation to make every pass count.
Auto Grade Assist
With the auto grade assist function, the operator moves the arm, the boom adjusts the bucket height automatically, tracing the target surface and minimizing digging too deep. This allows the operator to perform rough digging without worrying about the design surface, and to perform fine digging by operating the arm lever only. The working range is expanded by holding the lever to move the boom downward.
Auto Stop Control
During boom or bucket operation, the work equipment automatically stops when the bucket edge reaches the design surface, thus minimizing damage to the design surface.
Minimum Distance Control
The intelligent Machine Control excavator controls the bucket by automatically selecting the point on the bucket closest to the target surface. Should the machine not be facing a sloped surface at a right angle, it will still follow the target surface and minimize digging below it.
Komatsu intelligent Machine Control Components
Standard factory installed intelligent Machine Control system for 3D GNSS machine guidance and semi-automatic control. Sensor package includes stroke sensing hydraulic cylinders, inertial measurement units, and GNSS antennas.
Stroke Sensing Hydraulic Cylinder
Sensor package with stroke sensing hydraulic cylinders provides real time position, immediately displayed to the operator. This is in contrast to conventional aftermarket machine guidance (indicate only) systems with tilt sensors that require time to stabilize.
Control Box
The monitor of the Komatsu intelligent Machine Control (control box) uses a large 12.1" (30.7 cm) touch screen for visibility and ease of use. The screen layout is customizable to display information in an easily understood fashion with a variety of views including 3D, plan, and section.
Facing Angle Compass
The orientation and color of the facing angle compass’s arrow shows the operator the facing angle of the bucket edge relative to the target surface. This allows the bucket edge to be accurately positioned square with the target surface, which is useful when finishing slopes.
Engine
Model | |
Komatsu SAA6D114E-6* |
Type | |
Water-cooled, 4-cycle, direct injection |
Aspiration | |
Variable Geometry Turbocharger with air-to-air aftercooler and EGR |
Number of cylinders | |
6 |
Bore | 114 mm | 4.49" |
Stroke | 144.5 mm | 5.69" |
Piston displacement | 8.85 ltr | 540 in³ |
Horsepower: | |
|
SAE J1995 - Gross | 202 kW | 271 HP |
ISO 9249/SAE J1349 - Net | 192 kW | 257 HP |
Rated rpm | |
1950 |
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
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. |
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 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.
Product Parameter
Model | |
Komatsu SAA6D114E-6* |
Type | |
Water-cooled, 4-cycle, direct injection |
Aspiration | |
Variable Geometry Turbocharger with air-to-air aftercooler and EGR |
Number of cylinders | |
6 |
Bore | 114 mm | 4.49" |
Stroke | 144.5 mm | 5.69" |
Piston displacement | 8.85 ltr | 540 in³ |
Horsepower: | |
|
SAE J1995 - Gross | 202 kW | 271 HP |
ISO 9249/SAE J1349 - Net | 192 kW | 257 HP |
Rated rpm | |
1950 |
Governor | |
All-speed control, electronic. |
Fan drive method for radiator cooling | |
Mechanical |
*EPA Tier 4 Final emissions certified | |
|
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" |
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 |
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 |
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 |
Shoes | 700 mm | 28" |
Operating Weight | 39856 kg | 87,867 lb |
Ground Pressure | 0.61 kg/cm² | 8.61 psi |
Shoes | 800 mm | 31.5'' |
Operating Weight: | 40359 kg | 88,976 lb |
Ground Pressure | 0.54 kg/cm² | 7.63 psi |
Shoes | 900 mm | 35.5" |
Operating Weight: | 40796 kg | 89,940 lb |
Ground Pressure | 0.48 kg/cm² | 6.86 psi |