Refurbished Komatsu PC40 Excavator

The Komatsu PC40 is a compact excavator that provides excellent performance for a variety of tasks in tight spaces, from construction projects to landscaping and trenching. With a strong reputation for durability and versatility, the PC40 is an excellent choice for businesses that need a reliable and efficient machine but have limited space on their job sites. A refurbished Komatsu PC40 offers the added benefit of a cost-effective solution without sacrificing the performance and quality that Komatsu is known for.

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 PC40-7 or PC40MR-2 excavator:

Operating Weight and Dimensions

  • Operating Weight: 4,000–4,300 kg
  • Overall Length: ~5.3–5.5 meters
  • Overall Width: ~1.96–2.0 meters
  • Overall Height: ~2.5–2.6 meters
  • Tail Swing Radius: ~1.4–1.6 meters
  • Ground Clearance: ~320–350 mm
  • Track Width: 400 mm standard

Engine and Powertrain

  • Engine Model: Komatsu 4D88E-6 or SAA4D88E-6 (Tier 2 compliant)
  • Rated Power Output: ~29.5–33.5 kW (40–45 hp) @ 2,200 rpm
  • Maximum Torque: ~140–160 Nm
  • Fuel Tank Capacity: ~70–75 liters
  • Travel Speed: 2.8–4.8 km/h
  • Swing Speed: ~9.5 rpm
  • Gradeability: Up to 30°

Hydraulic System

  • Main Pump Type: Variable displacement axial piston pump
  • Flow Rate: ~2 × 60–70 L/min
  • System Pressure: Up to 24.5 MPa
  • Hydraulic Oil Capacity: ~60–70 liters
  • Boom Cylinder Bore: ~90 mm
  • Arm Cylinder Bore: ~75 mm
  • Bucket Cylinder Bore: ~65 mm

Performance Metrics

  • Bucket Capacity: 0.14–0.18 m³ (SAE heaped)
  • Max Digging Depth: ~3.6–3.9 meters
  • Max Reach (Horizontal): ~5.6–5.9 meters
  • Max Dump Height: ~3.8–4.0 meters
  • Bucket Digging Force: ~32–35 kN
  • Arm Digging Force: ~20–22 kN

Cab and Operator Features

  • Cab Type: ROPS/FOPS certified (canopy or enclosed)
  • Display: Basic LCD or analog gauges
  • Controls: Pilot joystick controls with auxiliary hydraulic circuit
  • Comfort: Adjustable seat, optional air-conditioning
  • Visibility: Wide glass area, LED work lights

Smart Features and Efficiency

  • Fuel Efficiency: Mechanical fuel injection with auto idle
  • Emissions Control: Tier 2 compliant (no DPF or SCR)
  • Telematics: KOMTRAX optional in later PC40MR variants
  • Transportability: Easily trailerable under 5-ton class

Attachments Compatibility

  • Standard Bucket: 0.14–0.18 m³
  • Optional Tools: Hydraulic breaker, auger, compactor, ripper
  • Quick Coupler: Manual or hydraulic options available

Refurbishment Scope

Refurbished PC40 units typically include:

  • Engine Overhaul: Cylinder head, injectors, turbo, seals
  • 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 PC40 Excavator

The Komatsu PC40 is part of Komatsu’s line of mini and compact excavators, designed for jobs where space and maneuverability are critical factors. Despite its small size, it boasts impressive digging power, lifting capacity, and efficiency. Whether used for residential projects, utility work, or even light commercial work, the PC40 is a versatile tool that makes getting the job done easier.

Key Specifications of the Komatsu PC40

  • Operating Weight: Approximately 4,000–4,200 kg (8,818–9,260 lbs)

  • Engine Power: Around 30–36 kW (40–48 hp)

  • Max Digging Depth: 3.2 meters (10.5 feet)

  • Max Reach: 5.5 meters (18 feet)

  • Bucket Capacity: 0.1–0.18 cubic meters (3.5–6.3 cubic feet)

  • Travel Speed: 4.5–5.5 km/h (2.8–3.4 mph)

  • Fuel Tank Capacity: 55–70 liters (14.5–18.5 gallons)

The PC40’s compact design allows it to work in environments where larger machines would be impractical, such as small job sites or residential areas. With a powerful engine and responsive hydraulics, it can still handle a variety of tasks typically associated with larger machines.

Performance and Engine

Despite its smaller size, the Komatsu PC40 is powered by a reliable engine that provides sufficient horsepower for a variety of tasks. The engine is designed for optimal fuel efficiency, making the PC40 a cost-effective option for both short-term and long-term projects.

  • Engine Power: The PC40 is powered by a Komatsu S4D95 engine, offering approximately 40–48 horsepower (30–36 kW). This engine provides enough power for most light to medium-duty tasks such as trenching, digging, and lifting.

  • Fuel Efficiency: The machine is designed for low fuel consumption, ensuring that operators can keep operating costs down. Its efficient fuel usage makes it ideal for businesses looking to minimize their overhead while still maintaining productivity.

  • Emissions Compliance: The engine complies with modern environmental standards, helping businesses to avoid penalties and comply with regulations regarding emissions.

Hydraulic System and Performance

The Komatsu PC40 features a powerful hydraulic system, designed to provide smooth and reliable operation even under heavy loads. This hydraulic system is vital for improving productivity and ensuring the excavator can handle a variety of tasks with ease.

  • Hydraulic System: The PC40’s hydraulic system is capable of producing high pressures and flow rates, which translate into excellent digging and lifting capabilities. Whether you're moving material or digging deep trenches, the hydraulic system ensures smooth operation.

  • Load-Sensing System: The load-sensing hydraulic system adjusts pressure based on the demand, ensuring that energy is used efficiently. This system also helps reduce wear on components, increasing the longevity of the machine.

  • Precision Control: The hydraulics of the PC40 are designed for precise control, which is particularly useful when operating in tight spaces or when handling delicate materials.

Compact Design and Maneuverability

One of the standout features of the Komatsu PC40 is its compact size and superior maneuverability. This makes it ideal for working in confined areas where larger excavators would struggle to fit. The machine's ability to work in tight spaces is essential for urban construction projects, landscaping, and utility work.

  • Compact Dimensions: The PC40 measures approximately 2.3 meters (7.5 feet) in width, with a length of about 5.5 meters (18 feet). These dimensions allow the machine to work in tight corners, narrow roads, and small construction sites.

  • Low Tail Swing: The PC40 is equipped with a low tail swing design, which means that the rear of the excavator remains within its operational footprint, even while turning. This feature is crucial when working near obstacles such as walls, fences, or other machines.

  • Maneuverability: Despite its compact size, the PC40 can travel easily across uneven terrain. Its agility and versatility make it suitable for working in urban settings where space is limited but heavy lifting and digging are still required.

Operator Comfort and Safety

The Komatsu PC40 is designed to prioritize operator comfort and safety. A well-designed cabin and intuitive controls make the machine easy to operate for long periods, reducing fatigue and improving productivity.

  • Ergonomic Cabin: The operator’s cabin is spacious and designed for comfort. With an adjustable seat, user-friendly controls, and easy access to the machine’s functions, operators can work for extended periods without discomfort.

  • Visibility: The PC40 offers excellent visibility for the operator, ensuring they can see the work area clearly. Good visibility helps prevent accidents and improves safety, especially when working in confined spaces.

  • Safety Features: The PC40 is equipped with several safety features, including rollover protective structures (ROPS), falling object protective structures (FOPS), and safety switches. These systems are essential for keeping operators safe from potential hazards while working on job sites.

Benefits of Choosing a Refurbished Komatsu PC40

A refurbished Komatsu PC40 offers many advantages over buying a brand-new unit. Refurbished machines are restored to near-new condition, providing an affordable option for businesses that need a reliable excavator without breaking the bank.

  • Cost Savings: Refurbished PC40 models offer significant savings—up to 30–40% less than purchasing new. This is ideal for businesses that need to control costs while still getting a high-quality machine.

  • Expert Restoration: A refurbished PC40 undergoes a thorough inspection and restoration process, ensuring that the engine, hydraulics, and undercarriage are fully functional. Major components are replaced or repaired as needed, and the machine is tested to ensure that it meets Komatsu’s high standards.

  • Extended Lifespan: Refurbishing the PC40 extends its operational life, offering another 5–10 years of service if properly maintained. This makes it a smart long-term investment.

  • Warranty and Support: Many refurbished PC40 models come with a warranty, offering peace of mind to businesses concerned about the longevity and reliability of the machine. Additionally, parts and support are often more affordable compared to brand-new models.

Maintenance Tips for the Komatsu PC40

Regular maintenance is crucial to ensuring that the Komatsu PC40 remains operational for many years. Here are some key maintenance tips to maximize its lifespan and performance:

  • Hydraulic System Care: Regularly inspect the hydraulic lines and fluid levels. Change filters and seals as required to maintain optimal hydraulic efficiency.

  • Engine Maintenance: Check oil levels, replace air filters, and monitor coolant levels regularly to prevent overheating and damage. Keep the engine clean and free from debris.

  • Undercarriage Inspections: Inspect the tracks, rollers, and sprockets for signs of wear. Keeping the undercarriage in good condition helps prevent more costly repairs down the line.

  • General Inspections: Conduct regular visual checks of the machine for any cracks, leaks, or unusual wear on the body and parts. Early detection of issues can prevent major malfunctions.

Conclusion

The Komatsu PC40 is a compact and efficient excavator designed for a variety of tasks, from residential and urban construction to landscaping and utility work. With its small size and powerful capabilities, it is perfect for tight spaces and confined job sites. Opting for a refurbished Komatsu PC40 offers significant cost savings while still delivering the reliability and performance that Komatsu equipment is known for. With proper maintenance, this machine can serve businesses well for many years, providing a solid return on investment.

Our Commitment

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

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