Liugong CLG990F Excavator — Overview

[MikePhua]

The Liugong CLG990F is a large crawler hydraulic excavator designed for mining, heavy earthmoving, and major construction projects. It emphasizes high power output, structural durability, and operational stability. Equipped with a high-performance engine and advanced hydraulic system, it provides customers with an efficient, reliable, and cost-effective solution for the most demanding jobs.

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CLG990F Key Specifications (List)
1️⃣ Dimensions

• Overall length (transport): 13,210 mm
  
• Overall width (transport): 4,410 mm
  
• Overall height (transport): 4,945 mm
  
• Minimum ground clearance: 880 mm
  
• Track length: 6,320 mm
  
• Track shoe width: 650 mm
  
• Total track width: 4,410 mm
  
• Upperstructure width: 3,600 mm
  
• Tail swing radius: 4,400 mm
  

2️⃣ Working Range

• Max digging height: 12,340 mm
  
• Max dumping height: 8,100 mm
  
• Max digging depth: 7,830 mm
  
• Max vertical digging depth: 5,330 mm
  
• Max digging radius: 11,800 mm
  
• Min swing radius: 5,050 mm
  

3️⃣ Performance

• Operating weight: 90,000 kg
  
• Standard bucket capacity: 4.5 m³
  
• Max digging force (arm): 370 kN
  
• Max digging force (bucket): 480 kN
  
• Travel speed: 3.2 / 2.2 km/h
  
• Swing speed: 6.8 rpm
  
• Max drawbar pull: 658 kN
  
• Gradeability: 35°
  

4️⃣ Engine

• Engine model: Cummins QSK19
  
• Rated power: 447 kW @ 2000 rpm
  
• Displacement: 19 L
  
• Cylinders: 6 in-line
  
• Max torque: 2508 Nm
  

5️⃣ Hydraulic System

• Main pump: 2 variable displacement piston pumps
  
• Max flow: 2 × 480 L/min
  
• Main control valve: multi-way valve
  
• Pilot system: load sensing
  
• Travel motors: 2 units
  
• Swing motors: 2 units
  

6️⃣ Capacities

• Fuel tank: 1,250 L
  
• Hydraulic tank: 550 L
  
• Coolant: 85 L
  
• Engine oil: 75 L
  
• Swing gearbox: 2 × 12 L
  
• Travel gearbox: 2 × 20 L
  

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Summary
As a mining-class large excavator, the Liugong CLG990F boasts high power, strong digging force, and a large bucket capacity. It delivers exceptional performance for heavy-duty earthmoving and tough mining operations. With industry-leading configurations for power, structure, and hydraulics, it balances strength with fuel efficiency, making it an ideal choice for mining companies and large-scale infrastructure projects seeking reliable high productivity.