Introduction to Worksite Pro HH40C Breaker
The Worksite Pro HH40C hydraulic breaker is a popular attachment used in heavy construction and demolition work. It's designed for use with compact loaders, backhoes, and mini-excavators, providing an efficient and powerful solution for breaking hard materials like rock, concrete, and asphalt. Known for its robust design and reliable performance, the HH40C is commonly used in applications such as road construction, trenching, and site preparation.
The hydraulic breaker is an essential tool for many industries due to its ability to deliver high-impact force in a compact and versatile form. With its wide range of applications, the HH40C has gained recognition for its durability and ease of use.
Design and Features of the Worksite Pro HH40C Breaker
The Worksite Pro HH40C breaker is engineered to handle tough conditions while maintaining efficiency and effectiveness. Here are some key features and specifications that make it stand out:

• Operating Weight: 970 lbs (440 kg), making it suitable for lighter machinery without sacrificing power.
  
• Impact Energy: The breaker delivers strong impact energy, capable of breaking tough materials without excessive vibration, which ensures smooth operation.
  
• Tool Diameter: Designed for smaller applications, the breaker uses a tool with a diameter that is optimized for mini-excavators and compact track loaders.
  
• Hydraulic System: The breaker operates via hydraulic pressure, requiring a flow rate of 15-20 GPM (gallons per minute) and a pressure of 2,000-2,500 PSI (pounds per square inch).
  
• Mounting: The HH40C is compatible with multiple machine types, including skid-steer loaders, backhoes, and compact excavators, making it a versatile choice for different job sites.
  
• High-Quality Construction: Built with heavy-duty components, the breaker features a robust housing and durable seals that protect internal components from dust, dirt, and moisture.
  

1. Road Construction and Paving
   The HH40C breaker is ideal for breaking up asphalt, concrete, and other materials commonly found in road construction projects. It provides a powerful impact for cutting through tough road surfaces, preparing them for repair or replacement.
   
2. Demolition
   In demolition work, the HH40C hydraulic breaker is used to tear down structures and remove concrete or masonry. Its compact size allows it to work in tight spaces, providing flexibility in urban demolition projects.
   
3. Trenching and Excavation
   The breaker is also used in trenching and excavation jobs to break through hard soil, rock, or other material types. It is especially useful when dealing with difficult ground conditions that traditional digging equipment cannot handle.
   
4. Site Preparation
   For site preparation tasks, such as foundation work and land clearing, the breaker is used to remove obstacles like rocks, boulders, and concrete remnants from the site. Its efficiency reduces the time spent on manual labor and allows operators to move quickly to the next phase of construction.
   

1. Check Hydraulic Fluid Levels
   Low hydraulic fluid levels can cause the breaker to operate inefficiently or even cause damage to the system. Make sure the hydraulic fluid is topped up and is in good condition. Replace fluid as recommended by the manufacturer to ensure smooth operation.
   
2. Inspect for Leaks
   Always check for hydraulic fluid leaks. Leaks can occur in the hoses or the breaker itself, affecting its performance. Repair or replace any damaged seals, hoses, or fittings to prevent further damage.
   
3. Check the Tool
   The breaker’s tool, the part that strikes the material, is subject to wear over time. Regularly inspect the tool for signs of cracking, chipping, or excessive wear. If the tool is worn out, replace it to maintain performance.
   
4. Clean the Breaker
   Dirt and debris can build up around the hydraulic system and moving parts. Periodically clean the breaker, especially the tool and its surrounding areas, to prevent build-up from interfering with operation.
   
5. Lubrication
   Ensure that all moving parts are well-lubricated. Lubrication reduces friction and wear, keeping the breaker running smoothly and extending its lifespan.
   

1. Breaker Not Operating Efficiently
   If the breaker is not delivering the expected impact force, check for low hydraulic pressure or low flow rate. These issues can lead to insufficient energy transfer, reducing the breaker’s effectiveness.
   
2. Frequent Seal Failures
   If the breaker is experiencing frequent seal failures, check the hydraulic pressure settings. High hydraulic pressure beyond the manufacturer’s specifications can cause seals to wear out prematurely. Adjust the pressure according to the specifications to prevent damage.
   
3. Tool Jamming or Sticking
   If the breaker tool becomes jammed or sticks, it could be due to debris buildup or inadequate lubrication. Cleaning the tool and applying proper lubrication should solve the issue.
   
4. Hydraulic Fluid Leaks
   Hydraulic fluid leaks are a common problem. If leaks are detected, inspect all hoses, fittings, and seals for damage. Replace any worn or damaged parts promptly to prevent further leakage.
   

The Terex 82-30 crawler tractor stands as a testament to engineering excellence and durability in the realm of heavy machinery. Introduced in 1967 by Euclid, and later rebranded under the Terex name in 1969, the 82-30 was designed to meet the rigorous demands of construction, mining, and military applications. Its production continued until 1973 in the United States and 1986 in Scotland, marking a significant era in crawler tractor development.
Engineered for Performance
At the heart of the Terex 82-30 lies the Detroit Diesel 6-71N engine, a six-cylinder, naturally aspirated unit renowned for its reliability and power. With a displacement of 426.6 cubic inches (approximately 7 liters), this engine delivers 239 horsepower at 2,290 RPM, providing ample power for demanding tasks. The engine's design incorporates a water-cooled system, ensuring optimal operating temperatures during extended use.
The 82-30's transmission system is powered by an Allison torque converter, offering smooth power delivery and efficient operation. This setup allows the tractor to handle a variety of attachments and tasks with ease, from earthmoving to heavy lifting.
Dimensions and Weight
The Terex 82-30 is a substantial machine, with dimensions that reflect its robust construction. It boasts a length of 21 feet (approximately 6.4 meters), a width of 15 feet 7 inches (4.75 meters), and a height of 10 feet 11 inches (3.33 meters). Its operating weight stands at 60,460 pounds (approximately 27,400 kilograms), providing the necessary ballast for stability during operation.
Military Applications
Beyond its commercial success, the Terex 82-30 also found a place in military operations. In the late 1970s and early 1980s, the British Army acquired a total of 46 units of the 82-30B model. These machines were utilized for various tasks, including heavy hauling and equipment transport, demonstrating the tractor's versatility and reliability in challenging environments.
Legacy and Impact
The Terex 82-30's influence extends beyond its production years. Its design and performance set a benchmark for future crawler tractors, influencing the development of subsequent models in the Terex lineup. The 82-30's success also contributed to the reputation of Terex as a leading manufacturer of heavy equipment, known for producing machines that combine power, durability, and precision.
In the broader context of heavy machinery history, the Terex 82-30 stands alongside other notable models, such as the Caterpillar D8T, which continues to be a workhorse in the industry. The legacy of the 82-30 is a reminder of the continuous evolution in engineering and design that drives the heavy equipment sector forward.
Conclusion
The Terex 82-30 crawler tractor remains a significant chapter in the history of heavy machinery. Its blend of power, durability, and versatility has left an indelible mark on the industry, influencing the design and development of crawler tractors for generations to come. Whether in construction, mining, or military applications, the 82-30's legacy endures, a testament to its exceptional engineering and enduring performance.

Introduction to the CAT D4C and Hydraulic Systems
The CAT D4C is a popular model of crawler dozer from Caterpillar, designed for a range of construction and excavation tasks. Known for its durability and efficiency, it is widely used in heavy-duty operations across the globe. Like many heavy equipment machines, the CAT D4C relies on a hydraulic system to perform critical tasks such as steering, lifting, and powering attachments.
The hydraulic system in a dozer plays a crucial role in ensuring smooth operation, as it powers key functions like the blade lift, steering clutches, and other implements. The hydraulic tank, which stores the hydraulic fluid, is integral to maintaining the pressure needed for these operations. When issues arise with hydraulic pressure, the entire system’s performance can be compromised, leading to reduced efficiency and potential damage to other components.
Understanding Hydraulic Tank Pressure
The hydraulic tank on the CAT D4C is designed to maintain a certain pressure level to ensure the hydraulic fluid is delivered consistently and with sufficient force. Hydraulic pressure is essentially the force at which hydraulic fluid is pushed through the system to power various functions. If the tank fails to maintain the necessary pressure, the hydraulic system may not function as intended, leading to a range of operational issues.
Hydraulic systems rely on pressure to generate force. The tank holds hydraulic fluid at a specific pressure level, and as the fluid moves through the lines and valves, it powers different components. If the pressure in the tank drops too low, it can result in sluggish movement, erratic behavior, or even complete failure of certain parts. Conversely, too much pressure can cause system leaks or damage to seals and hoses.
Common Causes of Hydraulic Tank Pressure Problems
There are several factors that can contribute to issues with hydraulic tank pressure on the CAT D4C. These can range from simple issues like low fluid levels to more complex mechanical failures. Here are some of the most common causes:

1. Low Fluid Levels
   One of the simplest reasons for low hydraulic pressure is insufficient hydraulic fluid. If the fluid level drops below the recommended level, there will not be enough fluid to maintain the proper pressure in the system. This can result in the loss of power to the hydraulic components.
   
2. Air in the Hydraulic System
   Air trapped in the hydraulic system can cause fluctuations in pressure and lead to inconsistent or erratic performance. Air can enter the system through leaks in hoses, valves, or seals, and it can compress when pressure is applied, reducing the system’s overall efficiency.
   
3. Faulty Pressure Relief Valve
   The pressure relief valve is an important component in any hydraulic system. It is designed to release excess pressure from the system to prevent over-pressurization, which could cause damage. If this valve becomes faulty or clogged, it may not open when necessary, resulting in too much pressure in the system, leading to leaks or other issues.
   
4. Clogged Filters
   Hydraulic filters play a critical role in preventing contaminants from entering the hydraulic system. Over time, these filters can become clogged with debris and dirt. A clogged filter can restrict fluid flow and cause pressure problems, as the fluid cannot flow freely through the system.
   
5. Worn or Damaged Seals
   Seals and gaskets are crucial to maintaining the integrity of the hydraulic system. Over time, seals can wear out or become damaged, allowing hydraulic fluid to leak out and reducing the pressure within the tank.
   
6. Hydraulic Pump Failure
   The hydraulic pump is responsible for generating pressure within the system. If the pump becomes worn or fails entirely, it will not be able to create the necessary pressure for the hydraulic system to function properly. This can lead to a loss of power or a complete failure of the system.
   
7. Overheating
   Overheating is another potential cause of pressure issues in hydraulic systems. If the hydraulic fluid gets too hot, it can become less efficient, causing the pressure to drop. Excessive heat can be caused by poor ventilation, excessive load, or low-quality fluid.
   

• Slow or unresponsive hydraulic movements: When the hydraulic fluid is not under the right pressure, the machine’s hydraulic functions (like the blade or steering) may move slowly or not respond at all.
  
• Erratic operation: The system may exhibit unpredictable or jerky movements, especially when trying to lift or push heavy loads.
  
• Unusual noises: Air in the system can lead to a "cavitation" effect, causing strange noises like whining or grinding when the hydraulic components are activated.
  
• Leaks or drips: Excessive pressure can cause seals and hoses to burst, leading to visible hydraulic fluid leaks.
  
• Warning lights: Many modern machines, including the CAT D4C, are equipped with sensors that alert operators when the hydraulic pressure is outside the normal range.
  

1. Check Fluid Levels
   Start by ensuring that the hydraulic fluid levels are at the recommended level. Low fluid is often the easiest cause to fix.
   
2. Inspect for Leaks
   Look for signs of fluid leakage around hoses, seals, and valves. Repair any leaks before continuing further diagnosis.
   
3. Bleed the System
   If air has entered the hydraulic system, bleeding the system to remove the air can help restore proper pressure. This may require the use of a bleeder valve or a special tool to ensure that all air is removed.
   
4. Inspect the Pressure Relief Valve
   Ensure that the pressure relief valve is functioning correctly and is free from debris. If the valve is faulty, it may need to be cleaned or replaced.
   
5. Clean or Replace Filters
   If filters are clogged, replace them with new ones. Ensure that the system is free of contaminants to avoid further issues.
   
6. Check the Hydraulic Pump
   If the pump is not producing the correct pressure, it may need to be repaired or replaced. This is typically a more complex repair that may require professional assistance.
   
7. Monitor Fluid Temperature
   Ensure that the hydraulic fluid is not overheating. Check for any issues with the cooling system, and ensure that the fluid is the right type and viscosity for the working conditions.
   

Introduction to Sandvik Jaw Plates
Jaw crushers are among the most essential pieces of equipment used in the crushing industry, particularly in mining, quarrying, and recycling operations. Sandvik, a leading manufacturer of mining and construction equipment, is known for producing high-quality jaw plates that provide enhanced performance and durability. Jaw plates, being the key wear components in a jaw crusher, play a significant role in the efficiency and longevity of the crusher.
One of the crucial features of jaw plates is the type of teeth design. The teeth on the jaw plates determine how the material is crushed, the efficiency of the operation, and the wear rate of the plates. Understanding the different teeth types and how they influence the crushing process is essential for optimizing crusher performance and reducing downtime.
The Role of Jaw Plates in Crushing Operations
Jaw plates are used in jaw crushers to crush and break down large materials into smaller, more manageable sizes. The crusher typically consists of two jaws: a stationary jaw and a movable jaw. These jaws are lined with jaw plates, which are equipped with teeth. The primary function of the teeth is to help in the biting, gripping, and breaking down of materials during the crushing process.
The crushing action of a jaw crusher is achieved through a combination of compression and shear forces. When materials are fed into the crusher, they are crushed between the two jaws as they move toward each other. The teeth on the jaw plates are strategically designed to optimize this process and increase the crushing efficiency.
Types of Jaw Plate Teeth Designs
Jaw plates are available in a variety of teeth types, each designed for specific applications. The design of the teeth affects the crusher’s performance, wear characteristics, and the ability to handle different types of materials. Below are some of the most common jaw plate teeth designs used in Sandvik jaw crushers:

1. Sharp Teeth
   Sharp teeth are often used for applications involving hard and abrasive materials. The sharp edges help to grip and bite into the material, allowing for efficient crushing. These teeth are ideal for applications where the material is tough, such as granite or hard rock. However, sharp teeth tend to wear out more quickly when used with softer materials.
   
2. Flat Teeth
   Flat teeth are more common in applications that involve softer, less abrasive materials. These teeth are designed to provide a smooth and even surface for crushing, which allows the crusher to operate more efficiently and with less wear. Flat teeth are typically used in aggregate and sand production, where the material is not as hard or abrasive.
   
3. Wavy Teeth
   Wavy teeth are designed with a more intricate pattern and are used in applications where there is a need for more controlled material flow. The wavy teeth help to break down the material more evenly and reduce the risk of jamming. These teeth are commonly used in recycling operations, where mixed materials need to be crushed and separated effectively.
   
4. Curved Teeth
   Curved teeth are often used in applications where the material is sticky or where there is a need for a more aggressive crushing action. The curved design helps to provide better contact with the material, improving the crushing efficiency. Curved teeth are ideal for handling materials such as clay or wet rock, which can be difficult to process.
   
5. Heavy-Duty Teeth
   Heavy-duty teeth are designed to withstand the harshest conditions and the most abrasive materials. These teeth are made of high-strength materials that offer extended wear life and enhanced performance. They are often used in mining and quarrying operations, where materials such as ore and hard rock are processed.
   

• Material Hardness: The hardness of the material being crushed plays a crucial role in determining the appropriate teeth design. Harder materials like granite require sharper or heavier-duty teeth to provide sufficient crushing power.
  
• Wear Characteristics: Different materials cause different wear patterns on jaw plates. Materials that are highly abrasive can cause teeth to wear down more quickly, requiring more frequent replacements.
  
• Throughput Requirements: The desired throughput and crushing capacity can influence the choice of teeth. High-throughput operations may require more efficient teeth designs to ensure the crusher performs optimally.
  
• Type of Material Being Crushed: Different materials, such as ores, rocks, aggregates, or recycled materials, have varying crushing requirements. For example, softer materials might require flat teeth, while more aggressive materials like rocks or ores need sharper or heavier-duty teeth.
  

Introduction
The Kawasaki 95ZV is a robust wheel loader known for its durability and performance in various construction and material handling tasks. However, like any heavy machinery, it is not immune to mechanical issues. One common problem reported by operators is related to the transmission system, particularly concerning cavitation noises and air bubbles in the hydraulic oil.
Understanding the Issue
Operators have observed that when the transmission is cold, it produces a cavitation sound, akin to sucking air. This noise diminishes as the oil temperature rises. Additionally, pulling the dipstick while the engine is running reveals numerous tiny bubbles in the hydraulic oil. These symptoms suggest the presence of air in the hydraulic system, which can lead to inefficient transmission performance and potential damage if not addressed promptly.
Potential Causes
Several factors can contribute to air entering the hydraulic system:

1. Low Hydraulic Fluid Levels: Insufficient fluid can cause the pump to draw in air, leading to cavitation.
   
2. Contaminated or Degraded Fluid: Old or contaminated hydraulic oil can lose its ability to lubricate and seal effectively, allowing air ingress.
   
3. Faulty Seals or Gaskets: Worn or damaged seals can permit air to enter the system.
   
4. Air Leaks in Suction Lines: Cracks or loose fittings in the suction lines can introduce air into the hydraulic fluid.
   
5. Pump Issues: A malfunctioning pump may not maintain the necessary pressure, causing air to be drawn into the system.
   

1. Check Hydraulic Fluid Levels: Ensure the fluid is at the recommended level. Top up if necessary.
   
2. Inspect Fluid Quality: Examine the oil for signs of contamination or degradation. If the oil appears dirty or has a burnt smell, consider replacing it.
   
3. Examine Seals and Gaskets: Look for any visible signs of wear or damage.
   
4. Inspect Suction Lines: Check for cracks or loose connections that could allow air to enter.
   
5. Test the Hydraulic Pump: Ensure it is operating within specified pressure ranges.
   

1. Replace Contaminated Fluid: If the hydraulic oil is found to be contaminated or degraded, drain and replace it with the manufacturer-recommended fluid.
   
2. Repair or Replace Faulty Components: Address any issues found with seals, gaskets, suction lines, or the hydraulic pump.
   
3. Bleed the Hydraulic System: After addressing the root cause, bleed the system to remove any trapped air.
   
4. Regular Maintenance: Implement a regular maintenance schedule to monitor fluid levels, quality, and system integrity.
   

Introduction to the JCB 1105 Robot Arm
The JCB 1105 robot arm, a product of JCB’s pioneering innovation in the field of heavy equipment, is designed to revolutionize the way agricultural work is carried out. This mechanical marvel blends precision with power, bringing together the latest in robotics and engineering to assist farmers in performing tasks that would otherwise require considerable human effort or traditional machinery. With a focus on automation, the JCB 1105 aims to provide greater efficiency, safety, and productivity to the agricultural sector.
Development History of JCB
JCB, an internationally recognized brand in the heavy machinery industry, was established in 1945 by Joseph Cyril Bamford. The company quickly became a leader in the production of construction, demolition, and agricultural machinery. Known for its innovation, JCB was among the first to introduce the backhoe loader, a device that combined a loader and a backhoe in one machine. Over the years, JCB continued to expand its product range, incorporating advanced technology into its machines to increase efficiency and reduce environmental impact. The introduction of the JCB 1105 robot arm further demonstrates JCB’s commitment to pushing the boundaries of technology in the agricultural machinery market.
Features and Specifications of the JCB 1105 Robot Arm
The JCB 1105 robot arm is designed to be an advanced tool for automating tasks traditionally performed by workers. It integrates several features aimed at enhancing precision, reliability, and operational efficiency.

• Weight: The robot arm’s total weight and specifications make it suitable for a wide range of agricultural tasks without compromising its portability.
  
• Reach and Precision: With a precision-guided mechanism, the arm is capable of performing detailed work with minimal human intervention. This is particularly valuable for tasks like harvesting, planting, or even in the management of delicate crops.
  
• Endurance and Automation: Unlike traditional farm equipment, the JCB 1105 robot arm can operate for extended hours without fatigue, ensuring that the productivity of the farm is maximized while reducing labor costs.
  

• Harvesting: The robot arm can be equipped with specialized tools to pick crops, such as fruits and vegetables, gently and efficiently, reducing waste and damage.
  
• Planting: Precision planting systems allow the arm to place seeds with accuracy, ensuring even spacing and ideal planting depth.
  
• Weeding and Pruning: Using advanced sensors, the JCB 1105 can identify and remove weeds from the field, and trim plants to improve growth.
  

The Takeuchi TL8 is a compact track loader developed by Takeuchi, a Japanese company founded in 1963, known for pioneering mini excavators and compact construction equipment. The TL8 is designed for versatility in tight spaces, offering a high power-to-size ratio and reliable hydraulic systems. It has been widely adopted in landscaping, urban construction, and small-scale earthmoving projects. Sales have steadily increased since its introduction in the early 2010s due to its durability, fuel efficiency, and ease of operation.

High Idle Symptoms
High idle occurs when the engine runs at a faster RPM than the manufacturer’s recommended idle, typically above 1,500–1,800 RPM for the TL8. Operators may notice:

• The engine sounds louder at rest
  
• Increased fuel consumption
  
• Faster wear on hydraulic components
  
• Difficulty in precise maneuvering due to excessive engine speed
  

• Throttle Control Issues: Faulty electronic throttle or mechanical linkage can prevent the engine from reducing RPM.
  
• Hydraulic Load Sensors: If sensors detect irregular hydraulic pressure, the controller may increase idle to maintain stability.
  
• Air Intake Leaks: Leaks in hoses or the intake manifold can introduce unmetered air, increasing engine speed.
  
• Fuel System Malfunctions: A clogged or malfunctioning fuel injector can cause the ECU to compensate with higher idle.
  
• ECU Settings or Software Bugs: Software errors in engine control can occasionally command higher idle.
  

• Check Engine Codes: Use a diagnostic tool compatible with Takeuchi equipment to read any active codes.
  
• Visual Inspection: Look for air leaks, damaged hoses, or loose throttle linkages.
  
• Hydraulic System Check: Ensure pump pressure and flow match manufacturer specifications.
  
• Fuel System Test: Inspect injectors, fuel filters, and the fuel pump for proper operation.
  
• Idle Adjustment Test: Some TL8 models allow mechanical or software-based idle adjustments through the control panel.
  

• Throttle Repair: Replace or adjust electronic throttle modules or mechanical linkages.
  
• Seal Air Leaks: Replace worn hoses or gaskets in the intake system.
  
• Fuel System Maintenance: Clean or replace injectors and fuel filters.
  
• Hydraulic Sensor Calibration: Ensure sensors and wiring are properly connected and functioning.
  
• ECU Software Update: Consult authorized Takeuchi service for firmware or software updates to fix idle control bugs.
  

• Conduct routine engine and hydraulic maintenance every 250–500 hours.
  
• Inspect throttle linkages and air intake hoses monthly.
  
• Use high-quality fuel and filters to reduce injector issues.
  
• Record idle speed readings to detect early deviations before they worsen.
  

• Avoid leaving the TL8 idling for extended periods; prolonged high idle accelerates wear and fuel consumption.
  
• When performing attachments work, monitor hydraulic response and engine RPM simultaneously.
  
• Document any irregular idle behavior in maintenance logs for quicker troubleshooting.
  

                               

ID：1826178

• Brand: Shandong Komatsu
  
• Model: SK210LC-8
  
• Manufacturing Year: 2009
  
• Hours: 14 hours
  
• Location: Rizhao City, Shandong
  

• Weight & Dimensions:
  • Operating Weight: 21,200 - 21,900 kg
    
  • Bucket Capacity: 1 m³
    
  • Transportation Length: 9,450 mm
    
  • Width: 2,990 mm
    
  • Height: 2,980 mm
    
  • Ground Clearance: 450 mm
    
  • Rear Swing Radius: 2,750 mm
    
  • Track Length: 4,450 mm
    
  • Track Width: 600 mm, 700 mm, or 800 mm
    
• Power System:
  • Engine Model: Hino J05E
    
  • Rated Power: 114 kW @ 2,000 rpm
    
  • Displacement: 5.123 L
    
  • Cooling: Water-cooled, Turbocharged, Intercooler
    
  • Engine Type: Direct injection, Water-cooled, Four-stroke
    
• Performance:
  • Ground Pressure: 34-44 KPa (0.35-0.45)
    
  • Rotation Speed: 12.5 rpm
    
  • Climbing Ability: 70% (35°)
    
  • Maximum Traction Force: 229 kN
    
  • Travel Speed: 6.0/3.6 km/h
    
• Hydraulic System:
  • Fuel Tank Capacity: 370 L
    
  • Hydraulic Tank Capacity: 146 L
    

                               

ID：1826177

• Brand: Doosan
  
• Model: DX700LC-Y
  
• Year of Manufacture: 2023
  
• Hours: 280 hours
  
• Location: Yiyang, Hunan
  

• Brand: Doosan
  
• Model: DX700LC-Y
  
• Year of Manufacture: 2023
  
• Hours: 280 hours
  
• Location: Yiyang, Hunan, China
  
• Operating Weight: 70 tons
  
• Engine: Traditional power (internal combustion engine)
  
• Bucket: Backhoe bucket
  

• Mining: Ideal for heavy lifting and excavation in mining operations.
  
• Construction: Useful for road construction, site preparation, and large-scale earthworks.
  
• Demolition: Equipped with attachments suitable for demolition tasks.
  
• Landscaping and Infrastructure: Offers high precision for large-scale landscape projects and infrastructure work.
  

                               


ID：1826179

• Brand: Caterpillar
  
• Model: New Generation CAT® 349 Hydraulic
  
• Year of Manufacture: 2020
  
• Hours: 4225 hours
  
• Location: Hunan - Yiyang City
  

• Brand: Caterpillar
  
• Model: New Generation CAT® 349 Hydraulic Excavator
  
• Year of Manufacture: 2020
  
• Hours: 4225 hours
  
• Location: Yiyang City, Hunan, China
  

• Weight and Dimensions:
  • Operating Weight: 48,200 kg
    
  • Bucket Capacity: 2.6 m³
    
  • Arm Length: 6900 mm
    
  • Stick Length: 3350 mm
    
  • Overall Transport Length: 11,920 mm
    
  • Transport Height: 3,230 mm
    
  • Ground Clearance: 475 mm
    
  • Track Length: 5370 mm
    
  • Track Gauge: 2740 mm
    
• Engine Specifications:
  • Engine Model: Cat C13
    
  • Rated Power: 303 kW at 1800 rpm
    
  • Displacement: 12.5 L
    
  • Bore x Stroke: 130 mm x 157 mm
    
• Performance Features:
  • Swing Speed: 8.44 rpm
    
  • Bucket Digging Force: 229 kN
    
  • Stick Digging Force: 193 kN
    
  • Maximum Traction Force: 335 kN
    
  • Travel Speed: 4.8 km/h
    
  • Swing Torque: 187 Nm
    
• Hydraulic System:
  • Main Pump Maximum Flow Rate: 389 x 2 l/min
    
  • Travel Hydraulic Circuit Pressure: 26 MPa
    
  • Swing Hydraulic Circuit Pressure: 35 MPa
    
  • Working Hydraulic Oil Circuit Pressure: 35 MPa
    
• Oil Capacities:
  • Fuel Tank Capacity: 715 L
    
  • Hydraulic Tank Capacity: 217 L
    
  • Engine Oil Capacity: 40 L
    
  • Coolant Capacity: 52 L
    
  • Hydraulic System Capacity: 550 L
    

• Power and Efficiency: The C13 engine provides ample power, while the hydraulic system ensures smooth and efficient operation in various working conditions.
  
• Reduced Operating Costs: Thanks to advanced technology, this excavator offers better fuel efficiency and lower maintenance costs compared to previous models.
  
• Comfort and Safety: The excavator is equipped with an ergonomic operator's cabin, offering comfort during long working hours. It also features advanced safety features such as rollover protection, stability systems, and more.
  
• Durability and Reliability: Caterpillar is known for the durability of its machines. The CAT® 349 is built to withstand tough working environments, ensuring long-term performance.