حفارة هيتاشي ZX55USR-5A موديل 2016، كايفنغ، خنان - 10,533 دولار

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ID：1826428

• Brand: Hitachi
  
• Model: ZX55USR-5A
  
• Year of Manufacture: 2016
  
• Hours Worked: 12,000 hours
  
• Location: Kaifeng City, Henan Province
  

The Hitachi ZX55USR-5A is a robust and efficient mini-excavator designed to meet the needs of construction projects with limited space. Manufactured in 2016, it has accumulated 12,000 hours of operation, making it a reliable workhorse for many years of heavy-duty tasks. Situated in Kaifeng, Henan, this excavator is built for precision, performance, and longevity, offering a variety of features that contribute to its success on the job site.
Basic Equipment Information

• Brand: Hitachi
  
• Model: ZX55USR-5A
  
• Year of Manufacture: 2016
  
• Operating Hours: 12,000 hours
  
• Location: Kaifeng, Henan
  

Specifications

• Weight (tons): 5
  
• Operating Weight (kg): 5,160
  
• Bucket Capacity (m³): 0.19
  
• Arm Length (mm): 1,380
  
• Power Type: Conventional Power
  
• Manufacturer: Joint Venture / Imported
  
• Bucket Type: Backhoe
  

Power System
The ZX55USR-5A is powered by a Yanmar EDM-4TNV88 engine, which provides a rated power of 28.1 kW at 2,400 RPM. This engine features a bore and stroke of 88x90 mm, with a torque output of 139.6 Nm at 1,100 RPM. It has a total displacement of 2.189 liters and operates on a 4-stroke, water-cooled, direct-injection system. The engine is designed to be fuel-efficient, ensuring both high performance and lower operating costs.

• Engine Model: Yanmar EDM-4TNV88
  
• Rated Power (kW/RPM): 28.1 / 2400
  
• Bore x Stroke (mm): 88 x 90
  
• Maximum Torque (Nm): 139.6 / 1100
  
• Cylinder Count: 4
  
• Displacement (L): 2.189
  
• Engine Type: 4-stroke, Water-cooled, Direct Injection
  

Performance and Capabilities
The ZX55USR-5A offers impressive performance with a ground pressure of 29 kPa, a swing speed of 9 RPM, and a climbing ability of 58%. The excavator boasts a bucket digging force of 36.8 kN, with an arm digging force of 24 kN. The maximum traction force is 38.3 kN, and it can travel at speeds of 4.0 km/h in high gear and 2.3 km/h in low gear. The swing torque is rated at 8.6 Nm, providing reliable turning power for various job site conditions.

• Ground Pressure (kPa): 29
  
• Swing Speed (RPM): 9
  
• Climbing Ability (%): 58
  
• Bucket Digging Force (kN): 36.8
  
• Arm Digging Force (kN): 24
  
• Maximum Traction Force (kN): 38.3
  
• Travel Speed (km/h): High: 04.0, Low: 02.3
  
• Swing Torque (Nm): 8.6
  

Hydraulic System
The ZX55USR-5A's hydraulic system is built for efficient power delivery and versatility. It uses a single axial piston motor for swing and two variable axial piston motors for walking, providing smooth operation even in tight spaces. The main pump has a maximum flow of 120 L/min, and the hydraulic working pressure is 24.5 MPa. The cylinder specifications are optimized for precise digging, with a bucket cylinder size of 75x551 mm, arm cylinder of 80x731 mm, and boom cylinder of 95x699 mm.

• Swing Hydraulic Motor Type: 1 Axial Piston Motor
  
• Travel Hydraulic Motors Type: 2 Variable Axial Piston Motors
  
• Main Pump Maximum Flow (L/min): 120
  
• Travel Hydraulic Circuit (MPa): 24.5
  
• Swing Hydraulic Circuit (MPa): 18.3
  
• Main Pump Type: 1 Variable Axial Piston Pump
  
• Working Hydraulic Oil Pressure (MPa): 24.5
  
• Pilot Circuit (MPa): 5.9
  
• Pilot Pump Flow (L/min): 12
  
• Bucket Cylinder (Count x Diameter x Stroke): 1 x 75 x 551
  
• Arm Cylinder (Count x Diameter x Stroke): 1 x 80 x 731
  
• Boom Cylinder (Count x Diameter x Stroke): 1 x 95 x 699
  

Oil Capacity
The ZX55USR-5A features a fuel tank capacity of 70 liters, allowing for long work durations without frequent refueling. The hydraulic tank can hold 42 liters, while the engine oil change capacity is 8.6 liters. The cooling system requires 4.7 liters of coolant, ensuring that the engine remains at optimal temperature during operations.

• Fuel Tank Capacity (L): 70
  
• Hydraulic Oil Tank Capacity (L): 42
  
• Engine Oil Change Capacity (L): 8.6
  
• Coolant Capacity (L): 4.7
  
• Hydraulic System Capacity (L): 66
  

Dimensions
The ZX55USR-5A is designed for easy transport and maneuverability on tight job sites. It has an overall transport length of 5,470 mm, a transport width of 2,000 mm, and a transport height of 2,510 mm. The machine's minimum ground clearance is 320 mm, and the front working device's minimum swing radius is 2,210 mm.

• Transport Length (mm): 5,470
  
• Transport Width (mm): 2,000
  
• Transport Height (mm): 2,510
  
• Cab Height (mm): 2,510
  
• Counterweight Ground Clearance (mm): 590
  
• Minimum Ground Clearance (mm): 320
  
• Front Working Device Minimum Swing Radius (mm): 2,210
  
• Rear Swing Radius (mm): 1,100
  
• Upper Structure Width (mm): 1,850
  
• Track Length (mm): 2,490
  
• Track Gauge (mm): 1,600
  
• Track Width (mm): 400
  

Working Range
The ZX55USR-5A's digging capabilities are ideal for both shallow and deep work. It offers a maximum digging radius of 5,960 mm and a maximum digging depth of 3,550 mm. The maximum dumping height reaches 4,050 mm, and the vertical digging depth is 2,830 mm. The machine is equipped with a powerful blade that can lift or push materials to a height of 460 mm or a depth of 365 mm.

• Maximum Digging Radius (mm): 5,960
  
• Maximum Digging Depth (mm): 3,550
  
• Maximum Digging Height (mm): 5,730
  
• Maximum Dumping Height (mm): 4,050
  
• Maximum Vertical Digging Depth (mm): 2,830
  
• Blade Lifting or Pushing Depth (mm): 460 / 365
  
• Blade Width x Height (mm): Height: 375
  
• Maximum Digging Radius at Work Surface (mm): 5,820
  

Conclusion
The Hitachi ZX55USR-5A is a compact yet powerful excavator that has been built to deliver top-notch performance on various job sites. Its impressive fuel efficiency, hydraulic power, and exceptional digging capabilities make it a top choice for contractors working in confined spaces or requiring precision in their excavation projects. Its low operating costs, combined with reliable power output, ensure that the ZX55USR-5A continues to be a trusted partner in construction and digging operations worldwide.