Refurbished Komatsu PC138 Excavator

The Komatsu PC138 is a mid-sized excavator that combines the power and capabilities of larger models with the compact design and maneuverability required for working in tighter spaces. Known for its robustness, efficiency, and versatility, the PC138 is widely used in a variety of construction, landscaping, and demolition tasks. Whether it’s digging trenches, lifting heavy materials, or grading surfaces, the Komatsu PC138 is built to handle a wide range of tasks with precision and reliability.

Honestly, it's almost impossible to buy a brand new excavator from China. They either don't exist or are made in China. If a Chinese seller tells you their Caterpillar/Komatsu/Volvo/Kobelco/Hitachi is brand new, they're lying. Therefore, a refurbished excavator is your best bet.

Here are the detailed specifications for a refurbished Komatsu PC138US-8 or PC138US-10 excavator:

Operating Weight and Dimensions

  • Operating Weight: 13,400–14,200 kg
  • Overall Length: ~7.6–7.9 meters
  • Overall Width: ~2.49–2.8 meters
  • Overall Height: ~2.8–3.0 meters
  • Tail Swing Radius: ~1.5–1.7 meters (ultra-short radius design)
  • Ground Clearance: ~440 mm
  • Track Width: 500–600 mm standard

Engine and Powertrain

  • Engine Model: Komatsu SAA4D95LE-5 (Tier 3) or SAA4D95LE-6 (Tier 4 Final)
  • Rated Power Output: ~72–72.6 kW (97–98 hp) @ 2,000 rpm
  • Maximum Torque: ~400–450 Nm
  • Fuel Tank Capacity: ~260–280 liters
  • Travel Speed: 3.5–5.5 km/h
  • Swing Speed: ~10 rpm
  • Gradeability: Up to 70% (35°)

Hydraulic System

  • Main Pump Type: Closed Center Load Sensing (CLSS) axial piston pumps
  • Flow Rate: ~2 × 160–180 L/min
  • System Pressure: Up to 34.3 MPa
  • Hydraulic Oil Capacity: ~220–240 liters
  • Boom Cylinder Bore: ~120 mm
  • Arm Cylinder Bore: ~105 mm
  • Bucket Cylinder Bore: ~95 mm

Performance Metrics

  • Bucket Capacity: 0.5–0.65 m³ (SAE heaped)
  • Max Digging Depth: ~5.5–5.7 meters
  • Max Reach (Horizontal): ~8.8–9.1 meters
  • Max Dump Height: ~5.8–6.0 meters
  • Bucket Digging Force: ~105–110 kN
  • Arm Digging Force: ~70–75 kN

Cab and Operator Features

  • Cab Type: ROPS/FOPS certified
  • Display: High-resolution LCD monitor with diagnostics and fuel tracking
  • Controls: Electro-hydraulic joysticks with customizable sensitivity
  • Comfort: Air suspension seat, climate control, low vibration cab
  • Visibility: Rear-view camera, LED work lights, wide glass area

Smart Features and Efficiency

  • Fuel Efficiency: Auto idle, variable speed matching, and Eco mode
  • Emissions Control:
    • Tier 3 units: No DPF/SCR
    • Tier 4 Final units: DPF + SCR + EGR
  • Telematics Ready: KOMTRAX system for remote diagnostics and fleet tracking
  • Attachment Memory: Preset hydraulic settings for multiple tools

Attachments Compatibility

  • Standard Bucket: 0.5–0.65 m³
  • Optional Tools: Hydraulic breaker, compactor, grapple, ripper
  • Quick Coupler: Hydraulic or manual options available

Refurbishment Scope

Refurbished PC138 units typically include:

  • Engine Overhaul: Turbocharger, injectors, seals, DPF cleaning (if applicable)
  • Hydraulic Restoration: Pump recalibration, valve block testing, hose replacement
  • Electrical Diagnostics: Monitor, sensors, wiring harness
  • Cab Reconditioning: Seat, joysticks, HVAC, repainting
  • Structural Repairs: Boom/bucket welding, bushing replacement, undercarriage rebuild

Overview of the Komatsu PC138 Excavator

The Komatsu PC138 is part of Komatsu’s line of compact, yet powerful hydraulic excavators. With an operating weight that balances strength and maneuverability, it is particularly well-suited for applications where space is limited but power is still needed. The PC138 comes with an efficient engine and hydraulic system, offering a combination of fuel efficiency and productivity.

Key Specifications of the Komatsu PC138

  • Operating Weight: 13,300–14,000 kg (29,300–30,800 lbs)

  • Engine Power: 75.7 kW (101 hp)

  • Max Digging Depth: 5.7 meters (18.7 feet)

  • Max Reach: 8.5 meters (27.9 feet)

  • Bucket Capacity: 0.4–0.5 cubic meters

  • Travel Speed: 5.2 km/h (3.2 mph)

  • Fuel Tank Capacity: 220 liters (58 gallons)

The PC138 offers an excellent balance of performance and versatility, with the ability to work in both compact spaces and larger, more open areas.

Powerful Engine Performance and Fuel Efficiency

The Komatsu PC138 features a powerful engine designed to offer a blend of high performance and fuel efficiency. This allows the machine to perform demanding tasks while reducing fuel consumption, which is a crucial factor for companies that want to keep operating costs under control.

  • Powerful Engine: The PC138’s 101 horsepower engine provides ample power for digging, lifting, and grading tasks. Despite its compact size, this machine delivers the strength needed to move large volumes of material quickly.

  • Fuel Efficiency: The PC138 is engineered to optimize fuel usage during operations, ensuring lower fuel consumption while maintaining high productivity levels. The ability to work longer hours with less fuel is a huge cost-saving advantage.

  • Lower Emissions: With an engine designed to meet modern environmental standards, the PC138 offers lower emissions, making it a more environmentally friendly choice compared to older machines.

Advanced Hydraulic System for Enhanced Productivity

The hydraulic system in the Komatsu PC138 ensures that operators can perform digging, lifting, and material handling with maximum precision and efficiency. The system is designed for responsiveness, helping improve productivity and reduce the time spent on each task.

  • Load-Sensing Hydraulics: The PC138 uses load-sensing hydraulic technology, which automatically adjusts the hydraulic flow depending on the load. This results in optimal performance and fuel savings.

  • Powerful Digging Force: The powerful hydraulic system enables the PC138 to deliver impressive digging force, ensuring that it can tackle tough materials with ease.

  • Smooth Operation: The hydraulic system provides smooth and precise control, helping the operator maintain accuracy during tasks like trenching, grading, and lifting. This also reduces wear on components, extending the machine's service life.

Compact Design and Excellent Maneuverability

One of the key features of the Komatsu PC138 is its compact design, which allows it to operate in smaller, confined spaces without compromising on power or performance. This makes it ideal for urban construction, residential projects, and projects where space is at a premium.

  • Compact Size: With a width of approximately 2.5 meters (8.2 feet), the PC138 is narrow enough to access tight spaces while still providing the power required for heavy-duty excavation tasks.

  • Low Tail Swing: The PC138 features a low tail swing design, allowing it to work in areas where space is limited. This makes it a great option for working near walls, buildings, or other obstacles.

  • Improved Stability: The PC138 maintains excellent stability even when working on uneven or sloped ground, ensuring the operator’s safety and confidence during operation.

Operator Comfort and Safety

Comfort and safety are essential features of the Komatsu PC138, ensuring that operators can perform their work efficiently while minimizing fatigue and risk.

  • Spacious Cab: The PC138 comes equipped with an ergonomically designed operator cab, providing ample space and comfort. The seat is adjustable, and the controls are within easy reach, reducing operator strain during long hours of operation.

  • Clear Visibility: The cab design offers excellent visibility of the work area, which is crucial for safety and precision when performing tasks like trenching, grading, and lifting.

  • Safety Features: The PC138 is equipped with a range of safety features, including rollover protective structures (ROPS), falling object protective structures (FOPS), and anti-slip steps. These features help ensure the safety of the operator and crew, even in hazardous conditions.

Benefits of Choosing a Refurbished Komatsu PC138 Excavator

When purchasing a refurbished Komatsu PC138, you gain access to a high-performance excavator at a lower cost compared to buying new. A refurbished model can provide the same quality and reliability, with the added benefit of a lower price.

  • Significant Cost Savings: Refurbished models are generally priced 30-40% lower than new ones, allowing you to get more value for your money.

  • Thorough Refurbishment Process: Refurbished Komatsu PC138 units undergo a comprehensive inspection and repair process. Key components such as the engine, hydraulics, undercarriage, and electronics are inspected, repaired, or replaced to ensure optimal performance.

  • Warranty and Support: Many refurbished PC138 units come with a warranty that covers major components, providing added peace of mind for the buyer.

  • Reduced Environmental Impact: By purchasing a refurbished PC138, you contribute to sustainability by reducing the need for new manufacturing, which helps minimize resource consumption and environmental impact.

Maintenance Tips for the Komatsu PC138 Excavator

Proper maintenance is essential to ensure the longevity and reliability of the Komatsu PC138. Here are some key tips for keeping your machine in top condition:

  • Regular Fluid Checks: Keep an eye on engine oil, coolant, and hydraulic fluid levels. Changing fluids at regular intervals will prevent engine and hydraulic issues.

  • Inspect the Undercarriage: Regularly check the tracks, rollers, and sprockets for signs of wear. Worn-out components should be replaced to maintain stability and traction.

  • Hydraulic System Care: Inspect the hydraulic hoses, valves, and pumps for leaks or damage. Keeping the hydraulic system in top shape ensures that your PC138 operates smoothly and efficiently.

  • Cabin Maintenance: Clean the operator’s cabin regularly and ensure that safety features like the seatbelt, ROPS, and FOPS are in good working condition.

Conclusion

The Komatsu PC138 is a versatile, powerful, and compact excavator ideal for a wide range of construction, landscaping, and demolition tasks. Its combination of efficiency, reliability, and maneuverability makes it a go-to choice for those who need a workhorse in urban environments or confined job sites. Choosing a refurbished Komatsu PC138 allows you to enjoy the same high-quality performance as a new model, but at a significantly lower cost. With proper maintenance, a refurbished PC138 can provide years of dependable service, making it a sound investment for your next excavation project.

Our Commitment

  1. 2 years / 4000 hours warranty.
  2. EPA certified.
  3. No sweatshop labor.

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