Komatsu Excavator PC390LC-11 SLF | 41 ton

Description

Komatsu Excavator PC390LC-11 SLF | 41 ton

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The Komatsu PC390LC-11 SLF (Super Long Front) is a large hydraulic excavator specifically designed to extend beyond standard configurations. It features an extended operating reach and premium stability for applications like ditch-cleaning, dredging, and deep slope grading.

Key technical specifications for the SLF variant include:

Engine & Power

• Engine Model: Komatsu SAA6D114E-6 (EPA Tier 4 Final certified)

• Engine Type: Water-cooled, 4-cycle, 6-cylinder, direct injection

• Aspiration: Komatsu Variable Geometry Turbocharger (VGT) with air-to-air aftercooler and EGR

• Gross Horsepower: 271 HP (202 kW) @ 1,950 rpm

• Net Horsepower: 257 HP (192 kW) @ 1,950 rpm

• Displacement: 8.85 L (540 in³)

Operating Weights & Capacities

• SLF Operating Weight: 89,941 lbs to 92,014 lbs (40,797 kg to 41,737 kg)

• SLF Bucket Capacity: 1.25 yd³ (0.96 m³)

• Fuel Tank Capacity: 159.8 US gal (605 L)

• DEF Tank Capacity: 10.3 US gal (39 L)

Hydraulics & Drive Systems

• System Type: HydrauMind (Hydraulic Mechanical Intelligence) system, closed-center with load-sensing and pressure-compensated valves

• Main Pump Flow: 141.3 gpm (535 L/min) variable displacement axial piston type

• Maximum Travel Speed: 2.7 mph (4.3 km/h) in High mode / 1.7 mph (2.8 km/h) in Low mode

• Maximum Drawbar Pull: 73,880 lbs (329 kN)

• Swing Speed: 9.5 rpm

Key SLF Design Advantages

• Smooth Hydraulics: Employs dual return hoses that improve arm-out cycle speeds. During extended reaches, a portion of the oil returns directly to the tank for exceptionally smooth bucket control.

• Transport Readiness: The arm is designed to tuck cleanly under the boom to achieve the lowest possible transport height without requiring disassembly.

• Reinforced Durability: Outfitted with hardened, nickel-plated steel parts for superior corrosion resistance and a cast bucket power link built to manage the leverage of a super long front.