Used Hitachi ZX70 Excavator

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Here is a detailed introduction to the Hitachi ZX70 excavator in English.

Hitachi ZX70 Compact Excavator: Detailed Introduction

The Hitachi ZX70 is a 7-tonne class compact hydraulic excavator engineered for versatility, power, and exceptional fuel efficiency. Renowned for its robust build quality and advanced technology, the ZX70 excels in a wide range of applications, including general construction, urban engineering, landscaping, utility work, and demolition. It represents the perfect balance between the agility of a mini excavator and the digging force of a mid-sized machine, making it a preferred choice for contractors who require top-tier performance in confined spaces without compromising on productivity.

Key Features and Innovations

1. Powerful and Clean Engine TechnologyAt the heart of the ZX70 lies a high-performance, water-cooled diesel engine, typically a Yanmar 4TNV98C-SSU model (depending on the region and emission standards). This Tier 4 Final / Stage V compliant engine delivers a net output of approximately 42.4 kW (56.8 HP) at 2,000 rpm. The engine is designed not only for robust power but also for reduced environmental impact. It incorporates advanced technologies such as a Diesel Particulate Filter (DPF) and a selective catalytic reduction (SCR) system on newer models, which drastically cut NOx and particulate matter emissions. The auto-idle and auto-shutdown features further reduce fuel consumption and noise during non-working periods.

2. Advanced Hydraulic System (HIOS III)The ZX70 is equipped with Hitachi’s proprietary HIOS III (Hitachi Intelligent Hydraulic System) . This system uses a variable displacement axial piston pump that precisely matches hydraulic flow to the workload. The result is a smooth, responsive, and highly controllable operation under all conditions. Whether performing fine grading or heavy trenching, the HIOS III system eliminates hydraulic lag, reduces fuel consumption, and delivers impressive combined operations. The boom and arm can be moved simultaneously with the swing and travel functions without any loss of speed or power, maximizing efficiency on the job site.

3. Exceptional Digging PerformanceDespite its compact dimensions, the ZX70 delivers class-leading digging forces. The bucket digging force reaches approximately 57.8 kN (5,900 kgf) , while the arm crowd force is around 39.4 kN (4,020 kgf) (measured at the power boost setting). The power boost function provides an immediate surge of lifting and digging power for up to 8 seconds, easily handling tough materials or heavy lifting tasks. The digging envelope is optimized for deep and long reach:

Maximum digging depth: 4,170 mm (13’8”)
Maximum reach on ground: 6,380 mm (20’11”)
Dump height: 4,370 mm (14’4”)

4. Operator-First Cab DesignOperator comfort and safety are paramount in the ZX70’s spacious cab. The cabin features a wide, tinted glass area that provides excellent all-around visibility, essential for urban job sites. The standard high-back suspension seat with adjustable armrests reduces fatigue during long working hours. An intuitive multi-function LCD monitor displays machine status, maintenance alerts, and rear-view camera feed (where fitted), keeping the operator fully informed. Climate control is managed by a highly efficient automatic air conditioning system. The cab is ROPS (Roll-Over Protective Structure) and TOPS (Tip-Over Protective Structure) certified, ensuring a secure working environment.

5. Durability and Structural IntegrityBuilt with Hitachi’s legendary reliability, the ZX70 features a reinforced undercarriage and boom/arm assembly. Box-section structures are used extensively for superior torsional rigidity. Key stress points are reinforced with thick steel plates, and the swing frame is designed to absorb impact loads. The boom and arm cylinders are protected by guards, and the hydraulic hoses are routed through the boom’s interior to prevent damage. The X-frame undercarriage offers excellent stability and durability, while the track options (rubber or steel) are designed to minimize ground disturbance and provide excellent traction on varied terrains.

6. Ease of Maintenance and ServiceabilityHitachi has simplified daily maintenance on the ZX70 to reduce downtime. The engine hood, side panels, and rear cover open wide for effortless access to the engine, cooling system, and hydraulic components. Ground-level access is provided for the engine oil dipstick, water separator, and hydraulic oil filters. Grouped grease fittings for the swing bearing and centralized remote greasing points for the front attachment pins significantly cut down service time. The advanced monitoring system alerts the operator to service intervals, helping to maintain the machine in peak condition.

7. Versatility Through AttachmentsThe ZX70’s auxiliary hydraulic circuit is standard-ready, allowing it to power a wide array of attachments. With a quick coupler system, operators can rapidly switch between a ditching bucket, grading bucket, hydraulic breaker, auger, compactor plate, or a tiltrotator. This transforms the excavator into a multi-functional tool carrier, dramatically increasing its utilization and return on investment. An optional second auxiliary circuit is available for attachments that require bidirectional flow, such as a rotating grapple.

Technical Specifications (Typical for ZX70-5G / ZX70-6 Series)

Component	Specification
Operating Weight	7,200 – 7,680 kg (15,870 – 16,930 lbs)
Engine Model	Yanmar 4TNV98C-SSU
Net Engine Power	42.4 kW (56.8 HP) @ 2,000 rpm
Hydraulic System	HIOS III, Pumps: 1 variable × 2 gear
Max. Oil Flow	2 × 67.5 L/min
Travel Speed	Low: 2.8 km/h / High: 5.0 km/h
Swing Speed	10.5 min⁻¹ (rpm)
Bucket Capacity	0.28 – 0.33 m³ (ISO Heaped)
Max. Bucket Digging Force	57.8 kN (5,900 kgf)
Max. Arm Crowd Force	39.4 kN (4,020 kgf)
Overall Length (transport)	6,080 mm (19’11”)
Overall Width	2,260 mm (7’5”)
Overall Height	2,590 mm (8’6”)
Tail Swing Radius	1,750 mm (5’9”)
Fuel Tank Capacity	120 L

Ideal Applications

The Hitachi ZX70 is exceptionally well-suited for:

Urban Construction and Roadworks: Its compact tail swing and parallel-layout undercarriage allow it to work in a single lane of traffic.
Landscaping and Agriculture: Low ground pressure and precise control make it perfect for sensitive ground and finish grading.
Underground Utilities: Deep digging capabilities combined with powerful lifting performance for installing pipes and cables.
Demolition and Recycling: High breakout force and compatibility with hydraulic breakers and crushers.

Conclusion

The Hitachi ZX70 compact excavator represents a smart investment for businesses seeking a reliable, fuel-efficient, and technologically advanced machine. It successfully merges the power and reach of a larger excavator with the compactness and maneuverability required for today’s congested worksites, all while keeping operator comfort and maintenance simplicity at the forefront of its design.

Non flooded

No accident

Original product

Used Hitachi ZX70 Excavator

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