Sany SY55C Excavator - Original Equipment Specifications

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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.
  

Performance Features of the SY55C
The SANY SY55C's performance is determined by its hydraulic system, digging capacity, and traction capabilities. These features are engineered to improve efficiency and ensure ease of operation.

• 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
    

These forces ensure that the SY55C can handle a wide variety of soil conditions and excavation tasks, from digging through soft earth to tackling more solid rock and debris.

• 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.
  

Hydraulic System and Fuel Capacity
The hydraulic system of the SY55C plays a crucial role in its performance. With a high-flow pump and efficient oil tank, it supports powerful digging and lifting operations.

• 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.
  

Dimensions and Undercarriage
The dimensions and undercarriage configuration of the SY55C are designed to enhance stability and maneuverability. With a compact design, this excavator can easily operate in confined spaces while maintaining a strong grip on the ground.

• 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.
  

Work Capacity and Reach
The SANY SY55C excels in various excavation tasks, from digging to lifting, due to its impressive working range and capacity:

• 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.
  

Applications of the SY55C
The SY55C is designed for a variety of applications that require a combination of strength, maneuverability, and precision. Its compact design makes it especially effective for urban construction projects, roadworks, and landscaping tasks. Some typical uses include:

• 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.
  

Conclusion
The SANY SY55C stands out in the compact excavator category for its combination of power, precision, and versatility. With a powerful engine, advanced hydraulic system, and compact design, it is an ideal choice for a wide range of tasks in both urban and rural environments. Whether digging, lifting, or maneuvering through tight spaces, the SY55C offers performance and reliability, making it a valuable tool for any construction or excavation project.