2008 Hitachi ZX70 excavator, Hebei-Baoding, $6,180

[MikePhua]

                               

• Brand: Hitachi
  
• Model: ZX70
  
• Manufacturing Year: 2008
  
• Operating Hours: 14,800 hours
  
• Location: Baoding City, Hebei Province
  
• Last Updated: 6 hours ago
  

ID：1824803

The Hitachi ZX70 is a well-regarded model in the construction and mining sectors, known for its efficiency, durability, and power. This excavator, with a 7-ton weight class, is a solid choice for various earth-moving tasks, ranging from digging to lifting and transporting materials. Below, we explore its specifications, performance, and other important aspects that make it stand out in its class.
Basic Information and Specifications

• Brand: Hitachi
  
• Model: ZX70
  
• Manufacturing Year: 2008
  
• Operating Hours: 14,800 hours
  
• Location: Baoding City, Hebei Province, China
  

The ZX70 is designed to be a versatile and reliable excavator, capable of handling a wide variety of construction and excavation tasks. This machine weighs in at 6,510 kg (approximately 7 tons), making it ideal for medium to heavy-duty operations where stability and lifting capacity are crucial.
Engine and Power System

• Engine Model: Isuzu ISUZU CC-4JG1
  
• Rated Power: 40.5 kW at 2000 rpm
  
• Displacement: 3.318 L
  
• Cooling Method: Water-cooled
  
• Cylinder Count: 4
  
• Injection Type: Direct injection
  

The ZX70 is powered by a robust Isuzu engine that delivers 40.5 kW of power. This engine, with a displacement of 3.318 liters, is designed to provide high torque and reliable performance over long operating hours. The water-cooling system ensures the engine runs efficiently, even in demanding environments.
Hydraulic System and Performance

• Main Pump Type: 3 variable piston pumps + 1 gear pump
  
• Hydraulic Pressure Setting: 31.4 MPa
  
• Rotation Hydraulic Motor Type: Variable piston pump ×1
  
• Travel Hydraulic Motor Type: Variable piston pump ×2
  

The ZX70 is equipped with a highly efficient hydraulic system, offering excellent lifting, digging, and turning capabilities. The machine features three variable piston pumps, which help deliver a smooth and consistent power output for all its hydraulic operations. The powerful hydraulic system, combined with the strong engine, makes the ZX70 highly effective for digging, lifting, and material handling.
Operational Performance

• Bucket Digging Force: 55 kN
  
• Arm Digging Force: 38 kN
  
• Ground Pressure: 30 KPa
  
• Travel Speed: 3.4 km/h (low) / 5.0 km/h (high)
  
• Rotation Speed: 11.3 rpm
  
• Climbing Ability: 70% (35°)
  

With a bucket digging force of 55 kN and an arm digging force of 38 kN, the ZX70 provides exceptional digging capabilities, making it suitable for tough soil and rock conditions. Its ground pressure is also relatively low, which allows it to perform well in softer terrains without causing significant damage to the ground.
The machine's rotation speed of 11.3 rpm ensures that the ZX70 can move materials efficiently and accurately. Moreover, its climbing ability of 70% means it can navigate steep terrains, which is essential for operations on uneven construction sites.
Dimensions and Size

• Overall Length: 6,080 mm
  
• Overall Width: 2,260 mm
  
• Overall Height: 2,600 mm
  
• Track Length: 2,765 mm
  
• Track Gauge: 1,750 mm
  
• Track Shoe Width: 450 mm
  
• Track Width: 2,200 mm
  

The compact yet powerful dimensions of the ZX70 allow for excellent maneuverability in tight spaces. Its track width of 2,200 mm provides ample stability for lifting and digging tasks. The track length of 2,765 mm enhances the machine's overall stability, ensuring that it performs well even in challenging working conditions.
Working Range and Capabilities

• Maximum Digging Radius: 6,320 mm
  
• Maximum Digging Depth: 4,170 mm
  
• Maximum Digging Height: 7,150 mm
  
• Maximum Unloading Height: 5,060 mm
  
• Maximum Vertical Digging Depth: 3,730 mm
  

The Hitachi ZX70 offers excellent reach and digging depth. With a maximum digging radius of 6,320 mm and a maximum digging depth of 4,170 mm, it is highly effective for deep digging and trenching work. Its impressive vertical digging depth of 3,730 mm allows it to perform tasks in confined spaces, making it a valuable asset on various construction projects.
Key Features and Advantages

1. Versatile Design: The ZX70’s compact size and robust power make it ideal for a wide range of applications, from earth-moving to material handling.
   
2. Powerful Hydraulic System: With its three-variable piston pumps and high hydraulic pressure, the ZX70 can perform tough tasks with ease.
   
3. Low Ground Pressure: The machine's low ground pressure makes it suitable for working in sensitive areas without causing ground disturbance.
   
4. Impressive Digging Capabilities: With its 55 kN bucket digging force and 38 kN arm digging force, the ZX70 is highly effective at breaking through tough soils.
   

Conclusion
The Hitachi ZX70 is a well-built, efficient, and versatile excavator that provides exceptional value to construction projects. Its powerful engine, efficient hydraulic system, and robust performance make it a solid choice for tasks ranging from digging to lifting materials. Whether you are looking for a machine that offers both power and maneuverability or need one that can handle heavy-duty tasks with ease, the ZX70 is a reliable option in the 7-ton class.