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New Komatsu PC78USLC-11 Excavator for Sale Designed to excel in underground utility and general construction in urban environments, this new Komatsu short tail swing excavator is at home in confined spaces. Extremely transportable, it delivers high attachment flow with in-cab programmable flow rates for a wide range of attachments.
Features and benefits
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| Body | |
|---|---|
| Frame | Center: X-frame leg Track: Box-section |
| Steering | Two levers w/pedals |
| Dimensions | |
|---|---|
| Length | 20’8” |
| Width | 7’8” |
| Height | 9’1” (to top of cab) 9’8” (to top of boom) |
| Weight | 17,438-18,188 lbs. |
| Ground Clearance | 2’7” (counterweight) 1’4” (minimum) |
| Fuel Tank Capacity | 33 US Gallons |
| Engine | |
|---|---|
| Engine Make | Komatsu |
| Engine Model | SAA3D95E-1 |
| Cylinders | 3 |
| Horsepower | 68 HP |
| Net Horsepower | 67.9 HP |
| Bore x Stroke | 3.74” x 4.52” |
| Governor | All-speed control, electronic |
| Rated RPM | 1,850 RPM |
| Aspiration | Turbocharged, aftercooled, cooled EGR |
| Piston Displacement | 149.5 in ³ |
| Drivetrain | |
|---|---|
| Drive | Hydraulic motor (swing system) |
| Brakes | Service: Hydraulic lock Parking: Mechanical disc |
| Track Length | 7’4” (on ground) 9’6” (w/road liner shoes) |
| Drawbar Pull | 15,309 lbf |
| Track Type | Sealed |
| Track Rollers | 5 (each side) |
| Carrier Rollers | 1 (each side) |
| Track Adjuster | Hydraulic |
| Hydraulic | |
|---|---|
| Pump | Pumps for: Boom, arm, bucket, swing, and travel circuits Type: Variable displacement, axial piston Pumps for: Blade Type: Fixed displacement gear |
| Std Pump Flow | 44.4 gal/min (Variable displacement, axial piston) 17.0 gal/min (Fixed displacement gear) |
| Hydraulic Tank Capacity | 14.8 US Gallons |
| Hydraulic Cylinders | Number of cylinders – bore x stroke x rod diameter Boom: 1 – 4.33” x 33.8” x 2.56” Arm: 1 – 3.74” x 33.9” x 2.36” Bucket: 1 – 3.35” x 27.95” x 2.17” Blade: 1 – 5.12” x 5.12” x 2.56” |
| Relief Valve Setting | Implement circuits: 4,264 PSI Travel circuits: 4,337 PSI Swing circuits: 3,176 PSI Pilot circuits: 464 PSI Blade circuits Raise: 1,784 PSI Blade circuits Lower: 3,060 PSI |
| Hydraulic Working Modes | 6 |
| Hydraulic Motors | Travel: 2 x piston motor w/parking brake Swing: 1 x axial piston motor w/swing holding brake |
| Auxiliary Flow | Two-way: 36.5 gal/min Relief: 3,830 PSI One-way: 21.1 gal/min Relief in breaker mode: 2,490 PSI |
| Operational | |
|---|---|
| Dig Depth | 15’3” |
| Dig Height | 25’1” |
| Arm Length | 7’5” |
| Bucket Digging Force | 13,781 lbs. (ISO rating) 11,668 lbs. (SAE rating) |
| Dump Height | 18’3” |
| Bucket Capacity | 0.12-0.26 yd³ |
| Travel Speed - Forward | High: 3.1 mph Low: 1.9 mph |
| Boom Length | 12’2” |
| Tail Swing Radius | 4’7” |
| Swing Speed | 10 RPM |
| Shoes | 39 (each side) |
| Shoe Width | 1’6” |
| Track Gauge | 6’2” |
| Swing Reduction | Planetary gear |
| Swing Circle Lubrication | Grease-bathed |
| Swing Lock | Mechanical disc brake |
| Drive Method | Hydrostatic Hydraulic: Mechanical w/viscous fan clutch (Fan for radiator cooling) |
| Hydraulic Type | HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load-sensing valves and pressure-compensated valves |
| Digging Reach | Max: 22’8” Max at Ground: 22’3” Min at Ground: 5’7” |
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