Komatsu PC138 excavator is a one-of-a-kind design that combines the hydraulic cylinder with the counterbalance weight to optimize weight distribution for improved stability during digging operations. When digging in soft ground conditions such as sand or clay, the counterweight is placed in front of the boom center line to prevent tipping. The counterbalance weights are also designed to have higher inertia than other models in order to provide additional stability under heavy loads during transport or while performing various functions such as trenching and pipe pulling work.
The Komatsu PC138US 8 was designed with the operator in mind; it provides high levels of operator comfort and safety while maintaining high levels of productivity. For safety reasons, four independent load sensing hydraulic systems monitor system pressures at all times, ensuring that if one system leaks or is damaged, all other systems continue to operate correctly, allowing you to continue working safely without compromising productivity levels.
A Tier 3 engine that meets EPA emissions standards powers Komatsu PC138US-8 hydraulic excavators. This means that this machine emits fewer harmful emissions than other models, resulting in cleaner air around your job site or home.
Komatsu Pc138 Specs
Brand | Komatsu |
Model | Pc138 8 |
Type | Hydraulic Excavators |
Year Made | 2006 |
Engine
Brand | Komatsu |
Model | SAA4D95LE-5 |
No. of Cylinders | 4 |
Type | Diesel 4 stroke |
Emission | EPA Tier 3 |
Aspiration | Turbocharged |
Fuel system | Direct Injection |
Emissions | U.S. EPA Tier 3 |
Rotation | Counterclockwise |
Lubrication System | Gear pump, force-lubrication |
Filter | Full-flow |
Air Cleaner | Dry type |
Compression Ratio | 20.8 |
Rated Speed | 2200 RPM |
US | Metric | |
---|---|---|
Horsepower (gross) | 97 HP | 72 kW |
Horsepower (net) | 92 HP | 68 kW |
Displacement | 199 cu in. | 3261 cc |
Bore | 3.7 in. | 9.5 cm |
Stroke | 4.5 in. | 11.5 cm |
Capacity
US | Metric | |
---|---|---|
Fuel Tank Capacity | 52 gal | 195 L |
Engine Oil Capacity | 3 gal | 11 L |
Coolant Capacity | 3 gal | 12 L |
Drive
Steering | Two levers with pedals |
Transmission | Hydrostatic |
Service Brake | Hydraulic lock |
Parking Brake | Wet disc |
Performance
US | Metric | |
---|---|---|
Bucket Capacity | 0.24– 0.78 yd³ | 0.18– 0.6 m³ |
Lifting capacity | 1290 kg | 2850 lbs |
Travel Speed | 3.2 mph | 5.1 km |
Maximum Drawbar Pull | 27,560 lbf | 123 kN |
Bucket Digging Force | 20,950 lbf | 93.2 kN |
Arm Crowd Force | 13,890 lbf | 61.8 kN |
Komatsu Pc138 Weight
US | Metric | |
---|---|---|
Operating Weight | 30,140 lbs | 13,670 kg |
Hydraulic System
US | Metric | |
---|---|---|
Pump Flow | 64 GPM | 242 LPM |
System Pressure | 5050 psi | 348 Bar |
Hydraulic Capacity | 18 gal | 69 L |
Swing System
Driven By | Hydraulic motor |
Swing Reduction | Planetary gear |
Swing Circle Lubrication | Grease-bathed |
Swing Lock | Wet, multiple-disc brake |
Swing Speed | 11.0 RPM |
Dimensions
US | Metric | |
---|---|---|
Overall Length | 286 in. | 726 cm |
Overall Height | 112 in. | 285 cm |
Overall Width | 98 in. | 249 cm |
Ground Clearance | 35 in. | 90 cm |
Tail Swing Radius | 58 in. | 148 cm |
Track Length | 142 in. | 361 cm |
Working Range
US | Metric | |
---|---|---|
Maximum Digging Height | 368 in. | 934 cm |
Maximum Dumping Height | 269 in. | 684 cm |
Maximum Digging Depth | 216 in. | 548 cm |
Maximum Digging Reach | 237 in. | 830 cm |
Minimum Swing Radius | 78 in. | 198 cm |
Undercarriage
Metric | |
---|---|
Center Frame | X-leg frame |
Track Frame | Box-section |
Seal of Track | Sealed track |
Track Adjuster | Hydraulic |
Number of Shoes | 43 each side |
Number of Carrier Rollers | 1 each side |
Number of Track Rollers | 7 each side |
Bucket Capacity and Weight
Bucket Capacity | Width | Weight | No of Teeth |
---|---|---|---|
0.24 yd³ 0.18 m³ | 17.7 in. 45 cm | 565 lbs 256 kg | 3 |
0.37 yd³ 0.28 m³ | 23.6 in. 60 cm | 670 lbs 303 kg | 3 |
0.50 yd³ 0.36 m³ | 27.6 in. 70 cm | 730 lbs 330 kg | 4 |
0.65 yd³ 0.50 m³ | 33.8 in. 85.9 cm | 880 lbs 399 kg | 4 |
0.78 yd³ 0.60 m³ | 39.4 in. 100 cm | 960 lbs 436 kg | 5 |
Komatsu Pc138 excavators have a short tail swing profile, making them ideal for working in tight spaces. The PC138 Komatsu is ideal for work on roadways, bridges, in urban areas, or anywhere space is limited due to its reduced tail swing. The Komatsu excavator pc138 delivers the performance and productivity that Komatsu is known for.Komatsu Pc138 Review
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