SANY SY550HB excavator Specifications

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The SANY SY550HB (Stage IV) is a 55-ton class hydraulic excavator designed for heavy-duty applications such as mining, quarrying, and large-scale earthworks. It features a powerful Isuzu 6WG1 engine, delivering 310 kW of rated power, and complies with Stage IV emission standards. The machine is equipped with a high-efficiency hydraulic system, advanced control technologies, and a robust structure, ensuring superior performance and durability in demanding working conditions.

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📋 Detailed Specifications
1. Basic Specifications

• Operating Weight: 54,000 kg
  
• Bucket Capacity: 3.2 m³
  
• Engine Model: Isuzu 6WG1
  
• Engine Type: Direct injection, 6-cylinder, 4-stroke, turbocharged, intercooled, water-cooled
  
• Displacement: 15.681 L
  
• Rated Power: 310 kW @ 1,800 rpm
  
• Maximum Torque: 2,050 N·m @ 1,300 rpm
  
• Emission Standard: Stage IV
  

2. Hydraulic System

• Main Pump Type: Dual-variable displacement axial piston pumps
  
• Maximum Flow Rate: 2 × 240 L/min
  
• Pilot Pump Flow Rate: 21 L/min
  
• Pilot Circuit Pressure: 3.9 MPa
  
• Working Circuit Pressure: 31.4 / 34.3 MPa
  
• Travel Circuit Pressure: 34.3 MPa
  
• Swing Circuit Pressure: 26 MPa
  

3. Performance Parameters

• Arm Digging Force: 262 kN
  
• Bucket Digging Force: 293 kN
  
• Maximum Traction Force: 350 kN
  
• Ground Pressure: 80.42 kPa
  
• Swing Speed: 8 rpm
  
• Travel Speed: 5.3 / 3.1 km/h
  
• Gradeability: 35°
  

4. Dimensions

• Transport Length: 12,095 mm
  
• Transport Width: 3,360 mm
  
• Transport Height: 3,790 mm
  
• Cab Height: 3,470 mm
  
• Upper Structure Width: 3,290 mm
  
• Track Length: 5,440 mm
  
• Track Width: 3,360 mm
  
• Track Gauge: 2,740 mm
  
• Track Shoe Width: 600 mm
  
• Minimum Ground Clearance: 560 mm
  
• Rear Swing Radius: 3,765 mm
  

5. Working Range

• Maximum Digging Radius: 12,841 mm (with breaker)
  
• Maximum Digging Depth: 8,077 mm (with breaker)
  
• Maximum Digging Height: 12,279 mm (with breaker)
  

6. Fuel and Oil Capacities

• Fuel Tank Capacity: 750 L
  
• Engine Oil Capacity: 50 L
  
• Cooling System Capacity: 50 L
  
• Final Drive Oil Capacity: 2 × 15 L
  

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✅ Summary
The SANY SY550HB (Stage IV) hydraulic excavator offers a powerful and efficient solution for heavy-duty applications. Its robust Isuzu engine and advanced hydraulic system ensure high performance and fuel efficiency. The machine's design emphasizes durability and ease of maintenance, with a long service life and low operating costs. Its compliance with Stage IV emission standards reflects SANY's commitment to environmental responsibility. Overall, the SY550HB is a reliable and cost-effective choice for demanding construction and mining projects.