Used Hitachi ZX70 Excavator

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Detailed Introduction of Hitachi ZX70 Excavator

The Hitachi ZX70 is a core model of Hitachi Construction Machinery's ZAXIS-7 series of 7-ton class small hydraulic excavators. It is designed for small and medium-sized construction scenarios, integrating high power, fuel efficiency, flexible operability and durability, and is one of the best-selling small excavator models in the global market.

1. Basic Specifications

Parameter	Specific Index
Operating Weight	6,500 – 7,000 kg (varies with configurations: cab/canopy, bucket type, track material)
Engine	4-cylinder water-cooled diesel engine: • Tier 4 Final/Stage V compliant version: Yanmar 4TNV98C • Low-emission region version: Isuzu CC-4JG1
Rated Net Power	40.5 kW @ 2,000 rpm
Standard Bucket Capacity	0.3 – 0.38 m³
Maximum Digging Depth	4,170 mm
Maximum Digging Reach	6,330 mm
Maximum Dumping Height	4,450 mm
Travel Speed	2.2 km/h (low speed) / 4.5 km/h (high speed)
Swing Speed	11.5 rpm
Maximum Climbing Grade	35°
Fuel Tank Capacity	135 L
Hydraulic System Flow	2×108 L/min
Optional Attachments	Hydraulic breaker, quick coupler, auger, ripper, grading bucket, etc.

2. Core Performance Features

(1) High-Efficiency Hydraulic System

It is equipped with Hitachi's exclusive HIOS III (Hitachi Intelligent Operating System) hydraulic technology, which realizes precise flow matching between the engine and hydraulic pump, reduces energy loss by more than 12% compared with the previous generation, and improves the efficiency of composite actions (boom lifting + arm retraction + swing) by 10%. It supports adjustable operation modes:

P (Power) mode: Full power output for heavy-duty digging and loading scenarios
E (Economy) mode: Reduces fuel consumption by 15% for light operations such as landscaping and grading
Auto-idle function: Automatically lowers engine speed after 4 seconds of no operation, further reduces standby fuel consumption.

(2) Flexible Narrow Space Adaptability

The optional boom offset function supports 60° left swing and 50° right swing, which can complete ditching, trimming and other operations along walls or in narrow alleys without moving the whole machine, and the working efficiency in limited space is 30% higher than similar models without offset function.

3. Operator Comfort & Safety

The cab is certified by ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure), which fully guarantees the personal safety of the operator in case of rollover or falling object impact.
Panoramic window design, the visible area is 30% larger than similar products, effectively reducing operation blind spots.
Ergonomic suspended adjustable seat with lumbar support and armrest matched with proportional control joystick, which reduces fatigue of long-term operation.
Fully sealed sound insulation cab, internal operation noise is as low as 72 dB(A), and the cab and chassis are connected with damping pads, which greatly reduces the vibration transmitted to the operator.
High-efficiency automatic air conditioning with multi-directional air outlets, suitable for extreme temperature working environments.

4. Maintainability & Durability

All daily inspection points (engine oil dipstick, fuel filter, air filter, hydraulic oil level gauge) are arranged on the side accessible from the ground, no need to climb the upper frame for inspection, and daily maintenance time is reduced by 40%.
The main structural parts are made of high-strength wear-resistant steel, and the X-shaped chassis frame is thickened, which can withstand long-term impact in harsh working conditions.
The service interval of hydraulic oil is extended to 5,000 hours, and the engine oil replacement interval is 500 hours, which greatly reduces the later operation cost.
All structural parts are treated with electrophoretic anti-corrosion coating, which has strong salt spray resistance and is suitable for coastal and high-humidity working environments.

5. Typical Application Scenarios

The Hitachi ZX70 is widely used in:

Urban municipal engineering: road repair, pipeline laying, cable trench digging, old community renovation
Landscaping: nursery planting, terrain shaping, irrigation ditch excavation
Rural infrastructure: house foundation construction, land consolidation, rural road renovation, small water conservancy projects
Narrow space operations: indoor demolition, basement construction, workshop material handling
Small mining operations: ore transfer, waste cleaning in quarry sites

Non flooded

No accident

Original product

Used Hitachi ZX70 Excavator

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