Komatsu PC238USLC-11 MID-SIZE EXCAVATORS
Product Feature
Powerful Komatsu SAA6D107E-3 engine
A powerful Komatsu SAA6D107E-3 engine provides a net output of 123 kW 165 HP. This engine is EPA Tier 4 Final emissions certified.
Enhanced Productivity
The PC238USLC-11's P mode provides improved performance in demanding applications.
Productivity Compared to the PC228USLC-10 in P modeUp to 4% increase
P mode (90° swing truck loading)
Efficient Hydraulic System
The PC238USLC-11 uses a Closed-Center Load Sensing System (CLSS) that improves fuel efficiency and provides quick response to the operator's demands. The control system matches engine and hydraulic demand at the most efficient point under any load condition. There have also been improvements in the main valve and hydraulic circuit to reduce hydraulic loss, resulting in higher efficiency and lower fuel consumption.
Arm Quick Return Valve
When the arm is extended, the quick return valve directs additional oil through a second line directly back to tank which reduces back pressure. Reduces fuel consumption and improves efficiency.
Viscous Fan Clutch
A temperature controlled viscous fan clutch improves engine efficiency and reduces engine power requirements when operating in cooler temperatures.
Stable Platform
The PC238USLC-11's compact 6.7 mt 14,815 lb counterweight provides exceptional lifting capacity and minimizes rear swing radius for operation in confined areas.
Short Tail Swing Radius
1810 mm 5'11" short tail swing radius of the PC238USLC-11 allows the machine to work in more confined areas than a conventional machine.
Greater Working Ranges
Raising the boom on the PC238USLC-11 to a greater angle enhances overall working performance. Job sites that require a taller upper reach, such as demolition and slope cutting, also benefit from the increased digging and dumping ranges of the PC238USLC-11.
Working range
Max. digging height: 10700 mm 35' 1"
Max. digging depth: 6620 mm 21' 9"
Max. digging reach: 9875 mm 32' 5"
Optional Komvision
An optional three camera system provides a bird's eye view (including cab visibility) of the machine and surrounding area. This system improves operation and situational awareness on the jobsite
KomVision benefits operators working in urban environments, confined spaces, and high traffic jobsites from increased visibility and situational awareness.
Distance markers are displayed in the monitor to show machine tail swing radius.
Product Parameter
| Model | Komatsu SAA6D107E-3* | |
| Type | Water-cooled, 4-cycle, direct injection | |
| Aspiration | Komatsu Variable Geometry Turbo air-to-air aftercooled | |
| Number of cylinders | 6 | |
| Bore | 107 mm | 4.21" |
| Stroke | 124 mm | 4.88" |
| Piston displacement | 6.69 ltr | 408 in³ |
| Horsepower: | ||
| SAE J1995 / Gross | 123 kW | 165 HP |
| ISO 9249 / SAE J1349 / Net | 123 kW |
165 HP |
| Fan at maximum speed / Net |
116 kW | 156 HP |
| Rated rpm | 2000 | |
| Governor | All-speed control, electronic | |
| Lubrication system: | ||
| Method | Gear pump, force-lubrication | |
| Filter |
Full-flow | |
| Air cleaner | Air cleaner, double element and auto dust evacuator |
| Main pump: | ||
| Type | Variable capacity piston type | |
| Pumps for | Boom, arm, bucket, swing, and travel circuits | |
| Maximum flow | 475 ltr/min | 125.5 gal/min |
| Hydraulic motors: | ||
| Travel | 2 x 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 circuits | 37.3 MPa 380 kgf/cm² |
5,400 psi |
| Swing circuits | 29.4 MPa 299 kgf/cm² | 4,264 psi |
| Pilot circuit | 3.2 MPa 33 kgf/cm² | 470 psi |
| Hydraulic cylinders: (Number of cylinders – bore x stroke x rod diameter) |
||
| Boom / 2 | 130 mm x 1385 mm x 90 mm | 5.11" x 54.5" x 3.5" |
| Arm / 1 | 135 mm x 1490 mm x 95 mm | 5.3" x 58.7" x 3.7" |
| Bucket / 1 | 115 mm x 1120 mm x 80 mm | 4.5" x 44.1" x 3.2" |
| Fuel tank | 290 ltr | 76.6 U.S. gal |
| Radiator | 28.3 ltr | 7.6 U.S. gal |
| Engine | 23.1 ltr | 6.1 U.S. gal |
| Final drive, each side | 5.0 ltr | 1.4 U.S. gal |
| Swing drive | 6.5 ltr | 1.7 U.S. gal |
| Hydraulic tank | 126 ltr | 33.3 u.s. gal |
| DEF tank |
13 ltr |
3.4 U.S. gal |
| Steering control | Two-lever with pedals | |
| Drive method | Fully hydrostatic | |
| Maximum drawbar pull | 202 kN 20600 kgf | 45,410 lb |
| Maximum travel speed: | ||
| High | 5.5 km/h | 3.4 mph |
| Mid | 4.1 km/h |
2.5 mph |
| Low | 3.0 km/h | 1.9 mph |
| Gradeability | 70%, 35° | |
| Service brake | Hydraulic lock | |
| Parking brake |
Mechanical disc |
| Driven by | Hydraulic motor | |
| Swing reduction | Planetary gear |
|
| Swing circle lubrication | Grease-bathed | |
| Swing lock | Mechanical disc brake | |
| Swing speed | 11.0 rpm | |
| Swing torque | 6656 kg.m | 48,124 ft lbs |
| Center frame | X-frame leg |
| Track frame | Box-section |
| Track type | Sealed |
| Track adjuster | Hydraulic |
| Number of shoes (each side): | 49 |
| Number of carrier rollers (each side): | 2 |
| Number of track rollers (each side): | 9 |
| Exterior – ISO 6395 | 100 dB(A) |
| Operator – ISO 6396 | 71 dB(A) |
| Shoes | Operating Weight | Ground Pressure |
| Road Liner 600 mm 24" |
24600 kg 54,230 lb |
51.1 kPa 0.52 kg/cm² 7.41 psi |
| 700 mm 28" |
24870 kg 54,825 lb |
44.29 kPa 0.45 kg/cm² 6.42 psi |
| 800 mm 31.5" |
25150 kg 55,440 lb |
39.19 kPa 0.39 kg/cm² 5.68 psi |
