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+--- Thread: Komatsu vs. Doosan Excavator User Report (/thread-5530.html)
Komatsu vs. Doosan Excavator User Report - MikePhua - 06-25-2025
This report shares my experience with various models of excavators, including Komatsu PC200-3, Komatsu PC220-6, PC220-7, PC240LC-8, and Doosan DH220LC-V. The report highlights the advantages and disadvantages of these machines and compares their performance in different scenarios.
First Machine: Komatsu PC200-3
14 years ago, I purchased my first Komatsu excavator, the PC200-3, as a second-hand machine for 450,000 RMB. It had around 3000 hours of usage. Although I later discovered that it had been refurbished, the machine performed flawlessly. However, an issue arose when the fan belt was damaged, causing the engine to overheat. After replacing the belt, the machine worked fine for another week before the engine completely failed. Due to limited repair knowledge and high repair costs, the engine was deemed a total loss. The manufacturer quoted a price of 380,000 RMB for a new engine, but I found a more affordable solution by replacing it with a Yuchai engine for just 30,000 RMB, including installation. After the replacement, the machine ran smoothly, and it was hard to tell that the engine had been replaced!
Evaluation:
- Pros: The PC200-3 impressed me with its durability and high-quality Japanese engineering.
- Cons: Although the engine replacement solved the problem, the high maintenance costs raised concerns.
After the issues with the PC200-3, I decided to purchase a new machine. Initially, I considered Komatsu again but found that the price of the PC220 was around 900,000 RMB, which was out of my budget. I then turned to Japanese brands like Hitachi, but they were also too expensive. Eventually, I decided to purchase a Daewoo DH220LC-V for 670,000 RMB, a more budget-friendly option. Upon recommendation from a sales representative, I ended up buying the Daewoo.
Currently, the Daewoo DH220LC-V has 16,000 hours of use and is 10 years old. It has not undergone any major repairs and still retains 90% of its original paintwork. I expect it to reach 20,000 hours without needing significant repairs. Although the machine is a bit slower now, it still delivers solid performance.
Evaluation:
- Pros: Reliable and cost-effective, with low maintenance requirements.
- Cons: Slightly slower speed, but still performs well overall.
After the Daewoo, I bought Komatsu PC220-6 and PC220-7 models. The PC220-6 is a well-built machine, and after 15,000 hours of operation, there are no significant issues with the hydraulic system. However, after 12,000 hours of use in a quarry, the undercarriage required significant repairs, with all the rollers needing replacement.
The PC220-7 had similar issues to the PC220-6 but also developed some cracks in the boom and arm. Although not critical, it is worth noting.
Evaluation:
- Pros: Reliable hydraulic system, suitable for long hours of work.
- Cons: Undercarriage wear and arm cracks after extended use.
I also purchased the Komatsu PC240LC-8, which features an electronic fuel injection engine, offering more power compared to other 240-class excavators. However, this comes at a cost: the fuel consumption is high. In P-mode, when excavating tough materials, the fuel consumption can reach 28.6 liters per hour.
The main advantage of the PC240LC-8 is its consistent performance, handling both soft and hard ground efficiently. It is a versatile machine, capable of handling a wide range of tasks with ease.
Evaluation:
- Pros: Powerful engine and versatile performance, suitable for heavy-duty tasks.
- Cons: High fuel consumption, especially in P-mode. The hydraulic cylinders tend to discolor, affecting the machine's appearance, although it doesn't impact functionality. Additionally, the cooling system is complex and expensive to repair if damaged.
The fuel consumption of the PC240LC-8 has been a concern, especially in P-mode, where it consumes fuel rapidly. Despite the increased fuel consumption, the PC240LC-8 offers stable and reliable performance, making it suitable for demanding work environments. The main drawback is the high cost of maintaining certain components, such as the hydraulic cylinders and high-pressure hoses, which tend to fail after 5000 hours of use.
Evaluation:
- Pros: Excellent performance and power, with great versatility for various tasks.
- Cons: High fuel consumption, particularly in demanding conditions. Hydraulic cylinders are prone to discoloration, and high-pressure hoses need frequent replacement.
The Komatsu PC240LC-8, despite its higher fuel consumption, remains a strong contender in terms of power and reliability. Its versatility makes it suitable for a wide range of tasks, though maintenance costs, particularly for hydraulic components, can add up over time. Overall, Komatsu excavators are known for their durability and performance, but fuel consumption and certain component failures need to be carefully managed. On the other hand, the Daewoo DH220LC-V has proven to be a cost-effective and reliable machine, with lower maintenance requirements and a longer service life.