Doosan DX55-9C ACE Excavator Specifications

[MikePhua]

The Doosan DX55-9C ACE Excavator is a 5.5-ton class compact hydraulic excavator that features Doosan’s advanced ACE hydraulic technology. Combined with a highly efficient and fuel-saving engine and optimized hydraulic system, it achieves a perfect balance of strong power, fuel economy, and responsive operation. This model is suitable for municipal construction, pipeline installation, landscaping, and medium-to-small earthmoving tasks. It offers comfortable operation, easy maintenance, and stable performance.

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📐 Detailed Specifications (List)
1. General Specifications

• Operating Weight: 5,500 kg
  
• Standard Bucket Capacity: 0.20 m³
  
• Rated Power: 40.2 kW @ 2,200 rpm
  
• Fuel Tank Capacity: 80 L
  
• Hydraulic Tank Capacity: 48 L
  

2. Engine Specifications

• Model: Doosan D24
  
• Rated Power: 40.2 kW
  
• Emission Standard: China Stage III / Euro III
  
• Engine Type: 4-cylinder, water-cooled, turbocharged
  

3. Operating Range

• Maximum Digging Height: 6,190 mm
  
• Maximum Dumping Height: 4,400 mm
  
• Maximum Digging Depth: 3,770 mm
  
• Maximum Vertical Digging Depth: 3,260 mm
  
• Maximum Digging Radius: 6,080 mm
  
• Minimum Swing Radius: 2,120 mm
  

4. Performance

• Maximum Digging Force (Arm): 33.3 kN
  
• Maximum Digging Force (Bucket): 41.2 kN
  
• Travel Speed (High/Low): 5.5 / 3.5 km/h
  
• Gradeability: 35°
  
• Swing Speed: 11.5 rpm
  

5. Other

• Track Shoe Width: 400 mm
  
• Ground Pressure: 36 kPa
  
• Transport Length: 5,840 mm
  
• Transport Width: 1,980 mm
  
• Transport Height: 2,650 mm
  

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✅ Summary
The Doosan DX55-9C ACE Excavator leverages advanced ACE hydraulic technology and an efficient engine to provide a balance of power and fuel economy with responsive and precise operation. Its compact and flexible design adapts well to various complex working conditions. The cab offers comfort and excellent visibility, enhancing the operator experience. Maintenance is straightforward, and operating costs are low, making it a reliable and versatile excavator choice for municipal, landscaping, and small-to-medium earthmoving projects.