The SANY SY55C is a compact, yet powerful hydraulic excavator designed to perform a wide range of tasks in tight spaces and on demanding work sites. Manufactured by SANY Heavy Industry, a global leader in construction machinery, the SY55C combines advanced features with reliable performance, making it a popular choice in various sectors, including construction, landscaping, and small-scale excavation projects.
Key Specifications of the SY55C
The SY55C is built to handle both light and heavy-duty tasks, offering exceptional reliability and efficiency. Below are its critical specifications:

• Operating Weight: The excavator weighs 5,780 kg, making it ideal for medium-sized construction projects that require both strength and maneuverability.
  
• Bucket Capacity: The excavator’s bucket capacity ranges from 0.1 m³ to 0.28 m³ (with the standard size being 0.21 m³), allowing it to handle various material types with ease.
  
• Boom and Arm Length: The boom and arm lengths are optimized for both digging depth and reach, giving the SY55C a versatile working range.
  
• Engine: Powered by the 4JG1 engine, this model has a rated power of 36 kW at 2,100 rpm. The engine's water-cooled system ensures efficiency and stability during prolonged operations. With a displacement of 3.059 L and 4 cylinders, the engine delivers reliable performance.
  
• Maximum Torque: The engine produces a maximum torque of 175 Nm at 1,800 rpm, which is more than enough for most excavation tasks and ensures smooth digging and lifting operations.
  

• Ground Pressure: With a ground pressure of 32.75 KPa, the SY55C offers minimal ground disturbance, making it suitable for working on soft or sensitive ground without causing excessive soil compaction.
  
• Rotation Speed: The excavator has a rotation speed of 9.6 rpm, which allows for efficient and precise movement, making it ideal for tasks that require high maneuverability.
  
• Digging Force:
  • Bucket Digging Force: 45 kN
    
  • Stick Digging Force: 33 kN
    

• Climbing Ability: The SY55C can tackle slopes up to 70% (or 35°), making it suitable for operations in hilly or uneven terrain.
  
• Travel Speed: With a maximum travel speed of 3.73 km/h in high gear and 2.4 km/h in low gear, the SY55C strikes a balance between mobility and control, ensuring it can quickly move between job sites or navigate through tight spaces.
  

• Main Hydraulic Pump Flow Rate: The excavator is equipped with a dual-pump system, providing a total flow of 360 L/min, which allows for smooth and efficient operation under demanding conditions.
  
• Fuel Tank Capacity: The fuel tank has a capacity of 130 L, enabling the SY55C to work for extended hours without the need for frequent refueling.
  
• Hydraulic Oil Capacity: The hydraulic oil tank holds 85 L of oil, ensuring proper lubrication and cooling of the hydraulic system during intensive tasks.
  
• Engine Oil Change Capacity: The engine oil change requires 9.6 L, which is fairly efficient for a machine of its size.
  

• Transport Dimensions:
  • Length: 5,925 mm
    
  • Width: 2,005 mm
    
  • Height: 2,595 mm
    
• Ground Clearance: The minimum ground clearance is 330 mm, which helps avoid damage to the undercarriage while working on uneven terrain.
  
• Rear Swing Radius: The rear swing radius is 1,640 mm, allowing for safe and efficient operations even in tight spaces.
  
• Track Length: The total track length is 2,545 mm, which contributes to enhanced stability and weight distribution during operation.
  
• Track Gauge: The track gauge is 1,600 mm, ensuring that the excavator maintains excellent traction and balance.
  
• Track Plate Width: Each track plate is 400 mm wide, providing a solid footprint and minimizing ground pressure.
  
• Number of Track Rollers: Each side of the track has 5 rollers, which contribute to smooth movement and reduce wear.
  

• Maximum Digging Radius: The maximum digging radius is 6,090 mm, allowing the machine to reach farther for efficient material handling.
  
• Maximum Digging Depth: The SY55C can achieve a maximum digging depth of 3,815 mm, making it effective for deep excavation tasks.
  
• Maximum Digging Height: The machine’s maximum digging height is 5,690 mm, which is ideal for tasks like loading trucks or clearing debris.
  
• Maximum Unloading Height: The SY55C can unload materials up to 3,930 mm, which increases its efficiency in material handling tasks.
  
• Maximum Vertical Digging Depth: The maximum vertical digging depth is 3,070 mm, which makes it suitable for tasks requiring precise vertical movements.
  
• Dozer Blade Lift/Push Depth: The dozer blade is capable of lifting or pushing up to 385 mm in height and 380 mm in depth, contributing to its versatility in earth-moving tasks.
  

• Trenching and Excavation for utility installation and foundation work.
  
• Landscaping and Site Preparation for construction sites and small infrastructure projects.
  
• Demolition of small structures, where precision and control are crucial.
  
• Material Handling and Loading in confined spaces, such as loading trucks or stockpiling materials.
  

• Brand: XCMG
  
• Model: XE550DK
  
• Year of Manufacture: 2021
  
• Operating Hours: 5,600 hours
  
• Location: Yuxi, Yunnan, China
  
• Last Updated: 4 hours ago
  

The XCMG XE550DK is a robust and high-performing hydraulic excavator designed for heavy-duty construction projects. Manufactured by XCMG, one of China's leading construction machinery manufacturers, this model is widely used in industries that require powerful digging and lifting capabilities, such as mining, infrastructure development, and large-scale excavation.
Key Specifications of the XE550DK
The XE550DK is a 55-ton class hydraulic excavator, well-suited for heavy lifting and earth-moving tasks. Its design incorporates a variety of features that optimize performance, durability, and operational efficiency. Let's break down some of the core specifications:

• Operating Weight: The XE550DK has a total operating weight of 51,200 kg. This substantial weight allows the machine to provide the necessary stability and power for demanding excavation tasks.
  
• Boom and Arm Dimensions: The boom measures 6,550 mm, while the stick arm is 2,550 mm. These dimensions allow the XE550DK to reach significant depths and perform powerful digging operations.
  
• Engine Power: Equipped with a Perkins 2206ⅢN engine, the XE550DK provides a rated power of 309.5 kW at 2,100 rpm. This engine ensures high productivity, offering the necessary strength to handle tough soil conditions.
  
• Torque: The engine's maximum torque is an impressive 1,896 N·m at 1,400 rpm, making it capable of delivering substantial force, especially in challenging ground conditions.
  
• Cylinders and Displacement: The XE550DK features a 6-cylinder engine with a displacement of 13 liters. This configuration offers better fuel efficiency and greater power output, essential for heavy machinery operating over long hours.
  

• Ground Pressure: The 88 Kpa ground pressure is a key feature of the XE550DK, ensuring that the machine's weight is distributed evenly, reducing soil compaction and preventing unnecessary strain on the ground surface.
  
• Rotation Speed: The machine has a rotation speed of 9.2 rpm, which ensures smooth and efficient pivoting during operations. This speed is particularly useful for tasks requiring precise digging and material handling.
  
• Digging Forces:
  • Bucket Digging Force: The XE550DK offers a robust 330 kN of digging force, making it ideal for breaking through tough material.
    
  • Stick Digging Force: The 255 kN of stick digging force further enhances the excavator's overall digging power, allowing for deeper penetration into the ground.
    
• Maximum Traction Force: With a maximum traction force of 370 kN, the XE550DK is able to handle steep inclines and rugged terrain, ensuring high efficiency even on uneven ground.
  
• Travel Speed: The excavator has a dual travel speed system:
  • High Speed: 5.2 km/h
    
  • Low Speed: 2.9 km/h
    

• Main Pump Flow Rate: The excavator is equipped with two main pumps, delivering a combined hydraulic flow rate of 720 L/min. This ensures fast and efficient operation, allowing the machine to perform tasks such as digging, lifting, and rotating with ease.
  

• Fuel Tank Capacity: 725 L
  
• Hydraulic Oil Tank Capacity: 430 L
  
• Engine Oil Change Capacity: 42 L
  

• Transport Length: 11,870 mm
  
• Transport Width: 3,572 mm
  
• Transport Height: 4,100 mm
  
• Ground Clearance: The minimum ground clearance is 518 mm, which ensures that the excavator can operate on uneven terrain without risking damage to the undercarriage.
  
• Rear Swing Radius: The 3,800 mm rear swing radius ensures smooth rotation without interfering with obstacles behind the machine.
  

• Track Length: 5,470 mm
  
• Track Gauge: 2,740 mm
  
• Track Plate Width: 600 mm
  

• Large-scale excavation for infrastructure development, such as highways, railways, and airports.
  
• Mining operations, where the ability to dig through tough soil and rocks is essential.
  
• Land reclamation and civil engineering projects that require precision and power.
  

• Brand: Caterpillar
  
• Model: 313D Series 2 Hydraulic
  
• Year of Manufacture: Unknown
  
• Operating Hours: 6,000 hours
  
• Location: Changsha, Hunan, China
  
• Last Update: 2 hours ago
  

The Caterpillar 313D Series 2 Hydraulic Excavator is a robust and versatile machine built to tackle demanding construction and earth-moving tasks. Offering a strong balance of power, efficiency, and durability, the 313D is widely regarded for its impressive digging capabilities and operational versatility. Whether you are involved in large-scale construction projects, infrastructure development, or precise excavation work, this machine promises to deliver exceptional performance.
General Information

• Brand: Caterpillar
  
• Model: 313D Series 2 Hydraulic
  
• Year of Manufacture: Unknown
  
• Operating Hours: 6,000 hours
  
• Location: Changsha, Hunan, China
  

• Operating Weight: 13,400 kg
  
• Bucket Type: Backhoe
  
• Engine Power: 70 kW (75 hp)
  
• Engine Type: Traditional Power
  

• Engine Model: Cat® C4.4 / 3054C
  
• Rated Power: 70 kW at 2,200 rpm
  
• Bore x Stroke: 105 mm x 127 mm
  
• Displacement: 4.4 L
  

• Swing Speed: 12.2 rpm
  
• Maximum Traction Force: 114 kN
  
• Travel Speed: 5.6 km/h
  

• Main Pump Maximum Flow: 254 l/min
  
• Pilot Pump Flow: 21.9 l/min
  
• Bucket Cylinder Size (mm): 100 mm x 939 mm
  
• Arm Cylinder Size (mm): 120 mm x 1,197 mm
  
• Boom Cylinder Size (mm): 110 mm x 1,015 mm
  
• Swing System Flow: 127 l/min
  

• Fuel Tank Capacity: 250 L
  
• Hydraulic Tank Capacity: 90.6 L
  
• Coolant Capacity: 17.88 L
  
• Hydraulic System Capacity: 104 L
  

1. Power and Efficiency: The combination of the Cat® C4.4 engine and a powerful hydraulic system ensures that the 313D Series 2 provides maximum power while maintaining fuel efficiency.
   
2. Hydraulic Precision: The hydraulic system’s precise control makes the 313D ideal for both large-scale digging and delicate operations such as grading and lifting.
   
3. Durability: Designed with Caterpillar's high standards for durability, the 313D Series 2 can handle tough job site conditions, ensuring a long service life.
   
4. Operator Comfort: The machine is equipped with an ergonomic operator’s cabin that enhances comfort and reduces operator fatigue during long work hours.
   

• Brand: Komatsu
  
• Model: PC130-8M0
  
• Year of Manufacture: 2018
  
• Operating Hours: 6,200 hours
  
• Location: Hanzhong, Shaanxi, China
  
• Last Update: 2 hours ago
  

The Komatsu PC130-8M0 is a reliable and versatile excavator, designed to meet the demands of various construction and mining tasks. Its powerful engine, robust hydraulic system, and advanced performance features make it an excellent choice for operators seeking a reliable machine with the capability to tackle challenging terrain and complex projects. In this article, we’ll explore the key specifications, features, and advantages of this machine.
Basic Information

• Brand: Komatsu
  
• Model: PC130-8M0
  
• Year of Manufacture: 2018
  
• Operating Hours: 6,200 hours
  
• Location: Hanzhong, Shaanxi, China
  

• Operating Weight: 12,500 kg
  
• Bucket Capacity: 0.53–0.64 m³
  
• Arm Length: 4,600 mm
  
• Bucket Length: 2,500 mm
  

• Engine Model: Komatsu SAA4D95LE-5
  
• Rated Power: 69.6 kW at 2,200 rpm
  
• Cooling Method: Water-cooled
  
• Bore x Stroke: 95 mm x 115 mm
  
• Displacement: 3.26 L
  
• Cylinder Configuration: 4 cylinders
  
• Engine Type: Turbocharged, intercooler, direct injection, four-stroke engine
  

• Main Pump Flow: 242 l/min
  
• Travel Hydraulic Pressure: 34.8 MPa
  
• Swing Hydraulic Pressure: 29.2 MPa
  
• Working Hydraulic Pressure: 31.9 MPa
  
• Bucket Cylinder: 1 x 90 mm x 885 mm
  
• Arm Cylinder: 1 x 115 mm x 1,175 mm
  
• Boom Cylinder: 2 x 105 mm x 995 mm
  

• Ground Pressure: 40 kPa
  The PC130-8M0’s ground pressure is relatively low for its size, ensuring better floatation on soft ground and reducing the risk of getting stuck in muddy or loose soils. This feature makes it ideal for urban construction sites or areas with less stable terrain.
  

• Bucket Digging Force: 86 kN
  
• Arm Digging Force: 72.9 kN
  

• Maximum Traction Force: 122.6 kN
  
• Travel Speed (High/Low): 5.5 km/h / 2.9 km/h
  

• Fuel Tank Capacity: 247 L
  
• Hydraulic Oil Tank Capacity: 90 L
  
• Engine Oil Capacity: 13 L
  
• Coolant Capacity: 13.9 L
  

• Transport Length: 7,590 mm
  
• Transport Width: 2,490 mm
  
• Transport Height: 2,885 mm
  
• Ground Clearance: 400 mm
  
• Minimum Swing Radius: 2,450 mm (front) / 2,190 mm (rear)
  
• Track Length: 3,610 mm
  
• Track Width: 500 mm
  
• Track Gauge: 1,990 mm
  

• Maximum Digging Radius: 8,290 mm
  
• Maximum Digging Depth: 5,520 mm
  
• Maximum Digging Height: 8,650 mm
  
• Maximum Unloading Height: 6,210 mm
  
• Maximum Vertical Digging Depth: 4,900 mm
  

• Compact and Maneuverable: The PC130-8M0’s compact size makes it easy to transport and operate in confined spaces, making it suitable for projects in urban environments or smaller job sites.
  
• Efficient Power System: With its fuel-efficient engine and hydraulic system, the PC130-8M0 delivers strong performance while keeping fuel consumption low. This makes it cost-effective for long-term operation.
  
• Advanced Hydraulics: The machine's hydraulics are highly responsive, providing precise control for all of its functions. This is crucial for tasks that require fine-tuned movements, such as grading or trenching.
  
• Durability: Built to withstand the rigors of daily construction and mining work, the PC130-8M0 is a durable machine that offers long-term reliability.
  

                                   

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• Brand: Hitachi
  
• Model: ZX70-5G
  
• Year of Manufacture: 2014
  
• Operating Hours: 12,000 hours
  
• Location: Luoyang, Henan, China
  
• Last Update: 2 hours ago
  

The Hitachi ZX70-5G is a versatile and robust crawler excavator, designed to deliver exceptional performance in a variety of construction and digging applications. With its impressive power, advanced hydraulic systems, and precision engineering, the ZX70-5G is an ideal choice for operators who demand reliability and efficiency. In this article, we will explore its key specifications, features, and performance capabilities.
Basic Information

• Brand: Hitachi
  
• Model: ZX70-5G
  
• Year of Manufacture: 2014
  
• Operating Hours: 12,000 hours
  
• Location: Luoyang, Henan, China
  

• Operating Weight: 6,700 kg
  
• Bucket Capacity: 0.33 m³
  

• Engine Model: Yanmar 4TNV98-AVHBW
  
• Rated Power: 42.4 kW at 2,100 rpm
  
• Cooling Method: Water-cooled
  
• Cylinder Configuration: 4 cylinders
  
• Displacement: 3.318 L
  
• Engine Type: 4-stroke, water-cooled, direct injection
  

• Main Pump Flow: 2×63 + 1×52.5 l/min
  
• Working Hydraulic Pressure: 26 MPa
  
• Pilot Circuit Pressure: 3.9 MPa
  
• Bucket Cylinder Dimensions: 85 mm × 55 mm
  
• Arm Cylinder Dimensions: 95 mm × 60 mm
  
• Boom Cylinder Dimensions: 115 mm × 65 mm
  

• Ground Pressure: 31 kPa
  • This relatively low ground pressure ensures the machine can work in softer ground conditions without sinking, making it highly effective in urban construction sites.
    

• Bucket Digging Force: 55 kN
  
• Arm Digging Force: 40 kN
  

• High Speed: 5.0 km/h
  
• Low Speed: 3.4 km/h
  

• Gradeability: 70% (35°)
  

• Transport Length: 6,080 mm
  
• Transport Width: 2,260 mm
  
• Transport Height: 2,600 mm
  
• Ground Clearance: 360 mm
  
• Track Length: 2,765 mm
  
• Track Gauge: 1,750 mm
  
• Track Width: 450 mm
  
• Total Width: 2,200 mm
  

• Maximum Digging Radius: 6,320 mm
  
• Maximum Digging Depth: 4,170 mm
  
• Maximum Digging Height: 7,150 mm
  
• Maximum Unloading Height: 5,060 mm
  
• Maximum Vertical Digging Depth: 3,730 mm
  

• Fuel Tank Capacity: 135 L
  
• Hydraulic Oil Tank Capacity: 60 L
  
• Engine Oil Capacity: 12.3 L
  
• Coolant Capacity: 8 L
  
• Hydraulic System Capacity: 100 L
  

• Powerful Yet Compact: The ZX70-5G offers a perfect balance of power and size, making it ideal for both large and small projects. Its smaller size allows for better maneuverability in tight spaces, while its powerful engine ensures efficient performance.
  
• Efficient Hydraulic System: With its advanced hydraulic components, the ZX70-5G provides precise control for lifting, digging, and leveling, ensuring high productivity and minimal downtime.
  
• Fuel Efficiency: The machine’s engine and hydraulic systems are designed for fuel efficiency, reducing operational costs over time.
  
• Durability: Hitachi is known for building durable and reliable machines. The ZX70-5G is no exception, designed to withstand the rigors of daily construction work.
  

Komatsu has introduced several new motor grader models, each designed to meet the evolving demands of the construction and mining industries. These machines combine advanced technology, powerful performance, and operator comfort to deliver exceptional results.
GD955-7: Power and Precision for Heavy-Duty Applications
The GD955-7 is Komatsu's most powerful grader, featuring a 426-horsepower engine and an operating weight of 47,320 kg (104,323 lbs). This model is specifically designed for heavy-duty applications, such as constructing and maintaining haul roads for truck fleets of 100 tons and up. Its high blade downforce pressure ensures efficient grading performance, while the extended wheelbase provides maximum stability. The GD955-7 also boasts faster working travel speeds compared to its predecessor, enhancing grading efficiency and reducing maintenance requirements.
GD655-7: Versatility and Fuel Efficiency
The GD655-7 is a versatile motor grader suitable for various applications. It is powered by a 218-horsepower engine and has an operating weight of 17,350 kg (38,250 lbs). This model features a unique dual-mode powershift transmission with a torque converter, allowing operators to select between eco mode for fuel efficiency and power mode for heavy-duty tasks. The GD655-7 also includes blade lift accumulators to protect the moldboard and drawbar from damage, and its high-flow hydraulics with on-demand CLSS valves enhance operator efficiency.
GD675-6: Precision and Comfort
The GD675-6 is designed for precision grading and operator comfort. It is equipped with a dual-mode transmission that helps reduce fuel consumption by up to 15%. The grader offers the longest wheelbase in its class, providing exceptional stability for fine grading tasks. Its operator-friendly features include an air-conditioned cabin and ergonomic controls, ensuring comfort during long working hours.
GD705-5: High Performance for Heavy-Duty Tasks
The GD705-5 is a high-performance motor grader designed for heavy-duty tasks. It boasts a 250-horsepower engine and a top forward speed of 42.5 km/h (26.4 mph). The grader's large moldboard width and maximum depth of cut make it suitable for large-scale construction projects. Its advanced transmission system ensures smooth operation, while the spacious cabin provides excellent visibility and comfort for the operator.
Technological Innovations Across Models
Across its new motor grader lineup, Komatsu has integrated several technological innovations to enhance performance and efficiency. These include:

• Grade Control Systems: Komatsu graders are compatible with the latest grade control systems, allowing for precise and efficient grading.
  
• Advanced Hydraulics: The graders feature high-flow hydraulics with on-demand CLSS valves, improving operator efficiency and responsiveness.
  
• Operator Comfort Features: All models are equipped with air-conditioned cabins, ergonomic controls, and adjustable seats to ensure comfort during long working hours.
  
• Fuel Efficiency Modes: The dual-mode transmission systems allow operators to select between eco mode for fuel efficiency and power mode for heavy-duty tasks.