Promotions by manufacturers are common, but when it comes to the real value of a product, it’s the feedback from front-line operators that matters most. They work closely with the equipment, and their experiences provide the most accurate insights. In this article, we interviewed a pump operator, Mr. Yang, who has over six years of experience operating concrete pumps, including models from SANY, Zoomlion, and Putzmeister (commonly known as "Elephant"). He currently operates a Zoomlion ZLJ 5417THB concrete pump, a 52-meter 6-section RZ boom pump mounted on an Isuzu four-axle chassis. Below is Mr. Yang’s evaluation of this equipment.
Purchase Background and Usage
The customer company that owns this pump has been in the construction machinery business for many years and has substantial financial strength. They have purchased multiple pumps from both SANY and Zoomlion. This particular 52-meter Zoomlion pump is one of eleven pumps the customer bought from Zoomlion in a single purchase. The market price for this pump is approximately 3.8 million RMB.
Operator Experience and Work Site
Mr. Yang, a pump operator from Hebei, started working with pumps around 2007 and has accumulated rich experience. He operates this pump alongside another worker, typically used in construction of residential buildings in Changping District, Beijing. The floors are not too high, so the pump does not need to move frequently. It only requires scheduled feed from the concrete mixer trucks.
This pump was first used at a real estate site in Shuozhou, Shanxi, earlier this year. Due to tight project timelines, regular maintenance was not performed, leading to uncleaned cement residues on the boom. However, the pump’s performance improved once it reached the Beijing construction site.
Performance Evaluation
1. Operational Stability
During operation, Mr. Yang noticed that the pump’s delivery cylinder caused some strong vibrations in the chassis when changing direction. Although this vibration does not significantly affect the discharge at the end of the boom, he pointed out that compared to the Putzmeister pumps he has operated, both Zoomlion and SANY pumps lack the same level of stability in their boom arms.
2. Delivery Speed and Precision
Mr. Yang was generally satisfied with the delivery speed, noting that the pump’s maximum delivery speed was fast. However, he mentioned that the precision in controlling the discharge amount was not ideal. Specifically, when the discharge chute neared full capacity, it was difficult to reduce the output, often resulting in concrete spillage.
3. Cement Splashing at the Inlet
Mr. Yang observed that occasionally, the hopper at the end of the pump, where the concrete mixer truck connects, would spray cement outward. While this did not happen frequently, it had a significant impact on the workers near the discharge area. Cement splashing on the workers could cause injury, especially if it gets into their eyes. The cause of this issue could be a design flaw, operational methods, or the concrete mix itself. It is strongly recommended that the manufacturer address this issue to avoid safety risks.
Fuel Consumption and Operating Costs
Fuel consumption is another major concern for operators. Since this pump operates mostly at a single site without frequent transfers, it works about 10 hours a day, resulting in a daily fuel cost of approximately 2,000 RMB, with an average fuel consumption of 25.8 liters per hour. The pump is mounted on an Isuzu four-axle chassis, which is known for its fuel efficiency, cost-effectiveness, and availability of spare parts, making it a preferred choice.
After-Sales Service and Parts
Although the pump performed well, Mr. Yang had some feedback on Zoomlion's after-sales service. He noted that the response time for after-sales support could be slow. When they contacted the manufacturer, they were informed that the service personnel would be available in 2 to 3 days. This delay could affect construction projects. As for parts replacement, Mr. Yang suggested that Zoomlion standardize the boom elbow models, as having a more uniform specification would make parts more easily accessible.
Additionally, Mr. Yang mentioned some inconvenience with the maintenance of certain components. For example, replacing the delivery cylinder piston and pump tubes requires using an Allen wrench to remove screws, which becomes difficult over time as these screws can become worn.
Conclusion
Overall, Mr. Yang expressed a positive view of the Zoomlion ZLJ 5417THB concrete pump. While there are some areas, such as discharge precision and certain design aspects, that could be improved, the pump’s high efficiency and operational stability are significant advantages. Zoomlion, by listening to the feedback from operators like Mr. Yang and making timely product improvements, can further enhance its market competitiveness.

In the world of mini excavators, upgrading equipment to match evolving needs is a common practice. A recent discussion on upgrading from the Kubota KX040 to the Kubota U48-5 provides insights into what this trade entails and the experiences that come with it.
Reasons for Upgrading
The user decided to trade their Kubota KX040 for the Kubota U48-5 due to a few key factors:

1. Increased Power and Performance: The KX040, though reliable and efficient for smaller tasks, was starting to show its limitations in handling more demanding jobs. The U48-5, offering higher horsepower and more robust hydraulics, was seen as a better fit for larger and more challenging projects.
   
2. Cab Comfort and Features: The U48-5 comes with several upgrades to the operator’s comfort, which was a major factor in the decision. The improved seating, better visibility, and more advanced controls provided a more enjoyable and productive working environment.
   
3. Enhanced Stability and Reach: The U48-5’s larger frame and extended reach make it a more versatile machine for a variety of tasks, including deeper excavations and better lifting capacity. The increased stability during operations was crucial for ensuring safety on uneven or difficult terrain.
   

• Engine Power and Performance: The Kubota U48-5 offers a stronger engine compared to the KX040. This provides the operator with more lifting power, faster cycle times, and overall enhanced performance during heavy-duty operations.
  
• Hydraulic System: The U48-5 has an upgraded hydraulic system, which makes it more efficient when handling larger attachments or operating in more demanding conditions. This is especially useful when performing tasks like trenching or lifting heavier materials.
  
• Cab and Controls: The U48-5 offers an improved operator cab with better ergonomics, more space, and a quieter working environment. The controls are more intuitive, and the advanced display system provides valuable data to the operator, improving precision and ease of use.
  
• Size and Weight: While both machines are compact and suitable for urban jobs, the U48-5 is slightly larger and heavier, which contributes to its enhanced lifting capacity and stability.
  

When purchasing a second-hand excavator or using a new model, encountering some minor issues is quite common. The Rippa NDI313, being a new generation machine, is no exception. Recently, some users have encountered common problems while using this equipment. Below is a summary of these issues and potential solutions.
Common Issues

1. Engine Starting Difficulties
   Some users have reported difficulty starting the engine, especially in colder weather. While the machine’s starter system and battery are designed well, insufficient battery charge or faulty starting systems can cause delays or failure to start the engine.
   Solution: First, check the battery charge and ensure that the battery terminals are free from corrosion and properly connected. If the problem persists, inspect the starting circuit and starter motor. If necessary, replace the battery or related components.
   
2. Hydraulic System Failure
   Some users have experienced instability in the hydraulic system, including hydraulic oil leakage, failure to operate the system, or sluggish movements. A malfunctioning hydraulic system can affect the machine’s operation, especially when digging or operating large attachments.
   Solution: Check if the hydraulic oil is at an appropriate level and ensure there are no leaks. If the oil needs to be replaced, use the recommended brand and type of hydraulic oil. Additionally, inspect hydraulic lines and connectors to ensure there are no loose or aging parts. If issues persist, check the hydraulic pump and valves for proper operation.
   
3. Unresponsive Control System
   Another reported issue is that the control system might be unresponsive, especially when operating the boom, bucket, or rotation functions. Users have experienced delayed or inaccurate control, affecting the smoothness of operation.
   Solution: First, inspect the electrical connections and signal transmission within the control system, ensuring that there are no damaged wires or loose connectors. Next, examine the hydraulic circuits and electrical components to determine if there are any faults or areas that need adjustment. If necessary, recalibrate the control system to improve response accuracy.
   
4. Engine Overheating
   Under high load working conditions, some users of the Rippa NDI313 have encountered engine overheating issues, particularly in high temperatures or during extended periods of intense operation. The engine temperature can rise quickly, triggering automatic shutoff protection.
   Solution: Ensure the cooling system is functioning properly. Check the coolant level and quality, and clean the radiator and cooling fan from any dust accumulation. If the cooling system is not the issue, inspect the engine oil pressure, filters, and air intake system to ensure there are no blockages.
   
5. Electrical System Issues
   Electrical system malfunctions are common in excavators. Users may experience issues such as dead batteries, non-functional lights, or display problems on the instrument panel. These issues are often caused by loose electrical connections or insufficient battery charge.
   Solution: Inspect the electrical system’s wiring and connectors to ensure they are not corroded or loose. Regularly clean the battery terminals and ensure the battery has sufficient charge. If the electrical problem persists, professional technicians may need to examine and repair the system.
   

For those new to operating excavators, purchasing a used or new mini excavator can be a game-changer, especially for smaller construction jobs, landscaping, and property maintenance. One such model that has garnered attention is the Kubota KX033-4, a 3.5-ton mini excavator known for its performance, ease of operation, and reliability.
Why Choose the Kubota KX033-4?
The Kubota KX033-4 has become a favorite among small business owners and individuals looking to tackle various excavation tasks. The mini excavator is praised for its compact size, which allows it to navigate tight spaces while offering the power necessary for a wide range of tasks.
One of the primary reasons owners prefer this model is its fuel efficiency and smooth operation. The KX033-4 is equipped with a powerful engine that makes it ideal for tasks such as digging trenches, landscaping, and even lifting light to medium loads. The machine’s ability to maintain performance in tough conditions while keeping fuel consumption low is a significant draw for users.
Performance and Features

• Powerful Engine: Despite being a compact mini excavator, the KX033-4 is equipped with a robust engine that delivers excellent performance for its size. Whether you’re working in a residential setting or a small construction job, the machine is versatile enough for a variety of tasks.
  
• Hydraulic Performance: The machine boasts impressive hydraulic capabilities, which allow it to lift, dig, and move material with ease. This makes it suitable for a wide range of activities, from grading to trenching.
  
• Comfortable and Efficient Operation: Many owners find the cabin of the KX033-4 to be spacious and comfortable. The ergonomically designed controls make operating the machine easy, even for those who are new to mini excavators. The joystick controls are responsive, allowing for smoother and more precise movements.
  
• Durability: A key selling point of the Kubota KX033-4 is its durability. Owners report that the machine can withstand tough working conditions, whether it’s dealing with rough terrain or extended working hours.
  

As demand for excavators increases among homeowners and small-scale projects, many beginners are exploring the possibility of purchasing mini or compact excavators. These machines are ideal for tasks such as land grading, gardening, pond digging, and other similar projects. This article combines user experiences to share insights on buying mini excavators and offers practical tips for beginners.
Key Considerations When Choosing a Mini Excavator
For first-time buyers, selecting the right mini excavator is essential. The key factors to consider include the machine's size, power, suitability for the work environment, and budget. User feedback indicates that many beginners initially don’t fully understand the machine’s capabilities and later realize that the choice of equipment directly affects both work efficiency and results.
For beginners, the ideal mini excavator should be able to handle daily tasks without being overly complicated to operate. Excavators in the 1-2 ton range are often suited for residential projects or landscaping, while larger machines are designed for heavy-duty industrial tasks.
Key Features of Mini Excavators

1. Ease of Operation: Beginners often prioritize ease of operation. Modern mini excavators are typically equipped with advanced control systems that allow users to quickly familiarize themselves with the equipment. By adjusting levers, operators can easily perform various tasks such as digging, lifting, and pushing.
   
2. Versatility: Many mini excavators are designed to be compact, making them ideal for working in confined spaces. For example, zero tail swing designs allow the excavator to rotate more freely in tight areas without hitting surrounding objects. For landscaping, garden work, and small construction projects, a compact and agile machine is preferable.
   
3. Power and Efficiency: Despite their small size, many mini excavators offer excellent power and fuel efficiency. Choosing a machine with the right horsepower ensures it can perform well in various working conditions. For example, 1-2 ton mini excavators are typically powerful enough to handle light to medium digging tasks while maintaining low fuel consumption.
   
4. Maintenance and Care: Regular maintenance is crucial for the long-term use of any excavator. New users often overlook this aspect, but proper maintenance can greatly extend the machine's lifespan and reduce the frequency of breakdowns. Regularly checking the hydraulic system, cleaning filters, and inspecting tracks are all essential tasks.
   

• Land Grading and Digging: Excavators are perfect for land excavation, especially for landscaping, garden design, or infrastructure construction. Mini excavators are often used to dig small ponds or clear land for roadways.
  
• Earthmoving: Tasks like soil filling, moving dirt, and pushing earth are ideal for mini excavators. Their excellent digging depth and stability make them a top choice for small-scale earthmoving projects.
  
• Landscaping and Garden Modification: Mini excavators are commonly used in gardening and landscape modifications. They can easily navigate complex terrain, completing tasks like soil excavation, leveling, and clean-up, making them ideal for residential gardens or small landscaping projects.
  

When it comes to purchasing a mini excavator, especially for those new to the industry, the process can be overwhelming due to the wide variety of options available. A common dilemma for first-time buyers is choosing between the Kubota KX and U Series mini excavators. Both are popular in the industry, but understanding the key differences and considerations will help you make an informed decision.
Understanding Mini Excavators: KX vs U Series
Kubota’s mini excavators are highly regarded for their reliability, performance, and ease of use. The KX and U Series are the two primary categories of Kubota’s mini excavators. Each series is designed for different kinds of jobs and work environments, so understanding the differences is crucial before making a purchase.
Kubota KX Series
The Kubota KX Series is well-known for its impressive power and lifting capabilities. These excavators are often preferred for more heavy-duty operations, especially when lifting and digging are the primary tasks. Key features include:

• Power and Performance: The KX Series is equipped with larger engines, making it more powerful compared to the U Series. It’s ideal for demanding tasks such as lifting heavy materials and deeper digging.
  
• Longer Reach: With longer arms and more extensive reach, the KX Series offers a higher level of versatility for digging in tight or confined spaces.
  
• Greater Stability: These excavators are designed with a wider stance, providing better stability when lifting heavy materials or working on uneven terrain.
  

• Compact Design: The U Series is more compact, making it perfect for urban or residential construction sites where space is tight. They are easier to maneuver in confined spaces and provide excellent control when working in restricted areas.
  
• Zero Tail Swing: One of the defining features of the U Series is the zero tail swing design. This allows the excavator to rotate within its own width, making it ideal for working in tight spaces without risking damage to nearby objects.
  
• Versatility: Despite its smaller size, the U Series offers a good balance of performance and maneuverability, making it a versatile option for a variety of tasks, including landscaping and utility work.
  

1. Job Requirements: Think about the type of work you'll be doing. If you primarily need an excavator for heavy lifting and deep digging, the KX Series might be a better fit. However, if you're dealing with more compact jobs and need to navigate tight spaces, the U Series could be the ideal choice.
   
2. Size and Maneuverability: Consider the size of the machine and how easily it can move around the worksite. Smaller jobs with restricted space benefit from the compact design of the U Series, while larger projects can take advantage of the power and reach of the KX Series.
   
3. Comfort and Ease of Use: For first-time users, the ease of operation is a critical factor. Kubota's machines are known for their user-friendly controls, but some people may prefer the feel of one series over the other. If possible, test both models to see which one offers the most comfortable operation for your needs.
   
4. Maintenance and Longevity: Both Kubota series are built to last, but regular maintenance is key to maximizing the lifespan of any equipment. Research the maintenance schedules for both series and consider how easily parts are accessible for servicing.
   
5. Cost and Budget: Price is always an important consideration. Generally, the KX Series will be more expensive due to its greater capabilities, while the U Series will be more affordable for those on a budget. Factor in not just the initial cost, but also the long-term maintenance and fuel efficiency of the machine.
   

Nissan excavators have gained widespread use in many construction sites due to their reliability and efficiency. However, like any heavy machinery, they may experience some issues over time, especially with prolonged use. Timely maintenance and understanding common problems can ensure the equipment performs optimally and lasts longer.
Common Issues with Nissan Excavators

1. Engine Starting Problems
   Engine starting issues are common in many excavators. Typically, problems arise due to a weak battery, starter motor failure, or fuel system issues. In colder climates, low temperatures can also affect engine start-up. Therefore, it's crucial to inspect the fuel system and battery regularly, especially in cold weather.
   
2. Hydraulic System Failures
   The hydraulic system is vital for the operation of the excavator. Hydraulic system failures, such as oil leaks, low oil levels, or damaged hoses, can severely affect the performance. Symptoms of hydraulic issues include slow or erratic arm movements. Regular checks of hydraulic oil levels and quality are essential to ensure the system runs smoothly.
   
3. Electrical Failures
   Electrical system failures are another common problem with Nissan excavators. Issues such as abnormal dashboard readings, circuit failures, or faulty sensors often occur due to aging wires, poor connections, or battery problems. Regular electrical system checks and cleaning of electrical components can help prevent such failures.
   
4. Overheating of Cooling System
   Excavators, particularly in hot environments, can suffer from cooling system overheating. This is often caused by insufficient coolant, blocked radiators, or faulty fans. Overheating not only affects performance but can also lead to engine damage. Periodic inspection of the cooling system and ensuring adequate coolant levels is crucial, especially in hot climates.
   
5. Wear and Tear of Undercarriage
   The undercarriage and tracks of the excavator are prone to wear, especially in rough, muddy, or rocky terrains. If not cleaned regularly, mud and debris can cause excessive wear on the tracks, affecting mobility. Keeping the undercarriage clean and inspecting the tracks for wear is essential for maintaining optimal performance.
   

1. Regular Oil and Filter Changes
   Regularly changing the oil and filters is vital for maintaining engine and hydraulic system performance. Poor oil quality can cause system malfunctions. It is recommended to replace the oil and filters at regular intervals or after a certain number of working hours.
   
2. Monitor Hydraulic System Health
   Hydraulic oil quality is directly linked to the performance of the hydraulic system. Check the oil levels regularly, and ensure that there is no water or contamination. If the oil appears emulsified (milky), it indicates water ingress, and the oil and filters should be changed immediately.
   
3. Keep the Electrical System Clean
   Regularly inspect the electrical system, including checking the battery levels and the condition of the wiring. Clean connections and avoid poor contact to reduce the risk of electrical failures.
   
4. Check the Cooling System
   To prevent engine overheating, regularly check the coolant level and clean the radiator and fan. Especially in hot weather, the cooling system plays a crucial role in ensuring the excavator’s proper functioning.
   
5. Inspect Undercarriage and Tracks
   Periodically inspect the undercarriage, tracks, and related components such as idlers and rollers. Look for signs of excessive wear or damage. Clean the undercarriage frequently, and lubricate moving parts to avoid premature wear.
   

Nissan excavators, though not as well-known globally as some other brands, have built a solid reputation, particularly in certain regions. Known for their reliability and efficient performance, these excavators are commonly used in construction and mining operations. However, like any machinery, they can encounter certain issues during their lifespan, particularly if they are not maintained properly.
Common Problems with Nissan Excavators

1. Engine Starting Issues
   A common issue faced by operators is difficulty starting the engine, especially in colder climates. This can be attributed to several factors, including poor fuel quality, clogged fuel filters, or issues with the battery or starter motor.
   
2. Hydraulic System Failures
   The hydraulic system, which powers most of the functions of the excavator, can sometimes fail due to leaks, worn-out seals, or a loss of hydraulic fluid. This can cause a significant decrease in the performance of the machine, especially in tasks requiring high lifting power.
   
3. Electrical Problems
   Electrical issues are also prevalent, with operators experiencing problems such as faulty sensors, malfunctioning gauges, or the machine failing to respond to controls. These issues are often linked to wiring problems or issues with the control panels.
   
4. Undercarriage Wear
   Like many construction machines, Nissan excavators can suffer from undercarriage wear due to constant movement over rough terrain. Tracks, rollers, and sprockets need to be regularly inspected and maintained to avoid costly repairs.
   
5. Overheating
   Overheating is another issue that can arise, especially in machines that have been working in high-temperature environments for extended periods. This can be caused by coolant leaks, clogged radiators, or malfunctioning cooling fans.
   

1. Regular Oil and Filter Changes
   Regular oil changes and replacing the engine filters is essential for keeping the engine running smoothly. Ensuring that the hydraulic oil and filter are also checked and replaced at regular intervals will prevent many common hydraulic system failures.
   
2. Monitor Fluid Levels
   Always check the hydraulic fluid, engine oil, and coolant levels before use. Low fluid levels can lead to overheating or damage to vital engine and hydraulic components.
   
3. Inspect the Tracks
   The undercarriage should be checked regularly for wear, and any components showing signs of wear or damage should be replaced. Keeping the tracks properly tensioned will extend their lifespan.
   
4. Electrical System Checks
   Periodic checks on the battery, wiring, and sensors are important to avoid electrical issues. It's recommended to keep the machine clean and free from dust and dirt, which can interfere with electrical connections.
   
5. Address Small Problems Early
   A small issue with the excavator can quickly escalate into a more significant problem if not addressed promptly. Ensure that any unusual sounds or poor performance are investigated immediately to prevent costly repairs later on.
   

The Nissan N-45 excavator is known for its reliable performance, but like all heavy machinery, it requires maintenance and occasional repairs to ensure it runs smoothly. One of the most common repair tasks involves the cylinder, which is crucial for the excavator’s hydraulic system. Replacing or repairing the cylinder seals is a necessary maintenance step to avoid leaks and improve efficiency. Here’s a detailed look into the cylinder repair kit for the Nissan N-45 excavator.
Cylinder Seal Kit for Nissan N-45 Excavator
The cylinder repair kit for the Nissan N-45 excavator includes a set of essential components designed to restore the hydraulic cylinders to optimal performance. This kit typically contains:

• Seals: The kit includes various seals such as o-rings, backup rings, and wipers. These seals are necessary for ensuring that the hydraulic fluid remains within the cylinder and that there are no leaks that could lead to a drop in pressure or inefficient operation.
  
• Piston Rings: These rings ensure that the piston inside the cylinder maintains a proper seal and allows for smooth movement within the bore.
  
• Gaskets: Gaskets prevent hydraulic fluid from leaking at the points where parts meet, providing a secure and efficient seal for the system.
  
• Wiper Seals: These seals are crucial for keeping dirt and debris from entering the cylinder and damaging the internal components.
  

Dazhou, located in Sichuan Province, is surrounded by mountains and has a population of less than 7 million. Despite its relatively small size, Dazhou is a hub for natural resource extraction, being home to the largest sulfur production base in Asia, as well as China’s biggest marine gas field and natural gas chemical park. Due to the rich mineral resources, many companies have flocked to Dazhou, and the need for urban infrastructure projects, such as housing, road construction, and land leveling, has been rapidly increasing. This, in turn, has led to a growing demand for large machinery.
Zhao Xuechun: A Veteran Excavator Operator
Zhao Xuechun, a native of Dazhou, is a seasoned professional with over 10 years of experience in the construction machinery industry. In 2001, he entered the business by purchasing a few second-hand mini excavators and offering rental services. By 2004, he was introduced to Doosan machinery, and he has since been a loyal customer, praising the efficiency, ease of operation, fuel savings, and affordable parts of Doosan products. He also appreciates their active after-sales service.
Over the years, Zhao’s business expanded, and his equipment transitioned from smaller machines to larger ones. His business now includes not only equipment rental but also independent contracting services. Zhao provides his operators with in-depth training to ensure the machines are used efficiently and with minimal downtime. His business has undertaken major projects such as the construction of the Dazhou hockey stadium, the land preparation for the Dazhou Mine Bureau office building, and the cleanup of land for PetroChina and Sinopec factories.
Why Zhao Chose the Doosan DX500LC Excavator
As Dazhou continues to develop, the demand for large-scale machinery to flatten mountains and excavate land has increased. With this in mind, when Doosan launched the DX500LC excavator, Zhao immediately decided to purchase one. This new addition was essential for his latest project, which involves land clearing for a factory site, requiring the removal of a hillside. The region's complex geology—composed mainly of limestone, dolomite, metamorphic rocks, and sandstone—calls for an excavator with high digging power and rock-breaking capabilities.
The Doosan DX500LC has exceeded Zhao’s expectations, successfully handling the mountainous terrain and tough rock excavation tasks. The excavator’s improved hydraulic system allows the machine to perform more coordinated and flexible movements, which is essential for large-scale earthworks. Additionally, the machine has been equipped with a soil breaker for optimal performance on Zhao’s project. Since its purchase, the DX500LC has been in use for over three months, significantly boosting the progress of the project.
SANY DX500LC Excavator Features & Performance
The DX500LC is an upgraded version of the DH500LC-7, designed to meet the demands of extreme mining environments in China. It combines the durability of the DH500LC-7 series with enhancements that make it more suitable for the diverse and challenging terrain of the Sichuan Basin. With its strong power, high productivity, and improved walking stability, the DX500LC is built to handle tough and fluctuating terrain conditions. It also performs well in wet conditions, minimizing the risk of landslides and other weather-related disruptions during operations.
Some key features of the Doosan DX500LC include:

• Hydraulic System: The advanced system ensures smooth operation, with better control over arm movements and optimized fuel efficiency.
  
• Fuel Efficiency: The DX500LC is more fuel-efficient than the DH500LC-7, making it suitable for areas with varying fuel quality. The machine operates effectively on domestic diesel that complies with China’s third-tier emission standards.
  
• Stability and Durability: The undercarriage has been improved for better walking stability and durability, allowing the machine to endure the rough terrain of mountainous areas and the constant rains of Sichuan.