XCMG XE550DK Excavator - Original Equipment Specifications

[MikePhua]

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.
  

Performance Characteristics
The XE550DK's performance is defined by several key parameters that ensure its ability to perform under demanding conditions. Here's a closer look:

• 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
    

This dual-speed feature allows the operator to adjust the travel speed depending on the work site, ensuring both mobility and stability in various conditions.
Hydraulic System and Capacity
The hydraulic system is one of the most critical components of any excavator. The XE550DK boasts a powerful hydraulic setup designed to support its impressive digging forces:

• 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.
  

Oil and Fuel Capacity
Fuel efficiency is a crucial factor for heavy machinery that operates long hours in the field. The XE550DK is designed with a large fuel tank and ample hydraulic oil capacity to ensure extended operational periods between refueling and oil changes:

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

These capacities ensure that the XE550DK can run for extended periods without requiring frequent refills, contributing to reduced downtime and increased productivity.
Dimensions and Ground Clearance
The physical dimensions of the XE550DK are designed for both mobility and stability. The size of the machine enables it to move efficiently while maintaining stability during operation:

• 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 and Undercarriage Dimensions
The tracks on the XE550DK are designed to distribute the weight evenly and reduce ground pressure. The following are the key track-related dimensions:

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

These specifications are ideal for providing stability and traction, particularly when working in loose or unstable ground conditions.
Applications of the XE550DK
Given its powerful engine, robust hydraulic system, and large digging force, the XE550DK is a versatile excavator suitable for a wide range of construction and mining applications. These include:

• 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.
  

Conclusion
The XCMG XE550DK is a highly capable and efficient excavator that offers superior performance in tough working conditions. Whether it's digging through hard soil, lifting heavy materials, or working in remote areas, the XE550DK is built to perform with precision and reliability. Its impressive hydraulic system, powerful engine, and durable design make it an excellent choice for heavy-duty applications, ensuring high productivity and low operational downtime. For construction professionals, the XE550DK represents a solid investment in both performance and longevity.