Used Hitachi ZX120 Excavator

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Detailed Introduction of Hitachi ZX120 Crawler Excavator

The Hitachi ZX120 is a classic 12-ton class medium crawler excavator developed and produced by Hitachi Construction Machinery, a world-leading construction equipment manufacturer. As a core model in Hitachi's ZX mid-range excavator product line, it is widely recognized for its balanced performance, high fuel efficiency, super durability and low operating cost, and is one of the most popular models in its tonnage class in the global construction equipment market.

1. Key Specifications (Standard Configuration)

Parameter	Specific Value
Operating Weight	11.8 - 12.6 t
Engine Model	Isuzu AI-4JJ1X turbocharged intercooled diesel engine
Rated Power	66 kW / 2200 rpm
Emission Standard	EU Stage III / US EPA Tier 3 (upgraded versions meet EU Stage V / China National IV for different regional requirements)
Bucket Capacity	0.52 - 0.65 m³ (optional for different working conditions)
Max. Digging Depth	5570 mm
Max. Digging Height	8950 mm
Max. Dumping Height	6270 mm
Max. Digging Radius	8390 mm
Travel Speed	3.3 km/h (low) / 5.5 km/h (high)
Swing Speed	11.5 rpm
Gradeability	35°

2. Core Performance Features

2.1 High-efficiency Power & Hydraulic System

The original Isuzu engine has the characteristics of strong low-torque output, low fuel consumption and low noise, and can adapt to high-altitude, high-temperature and other harsh operating environments.
Equipped with Hitachi's exclusive HIOS III (Hydraulic Input Optimized System) hydraulic system, which perfectly matches the engine output, reduces hydraulic energy loss by 12% compared with the previous generation model, and realizes precise control of compound actions (boom lifting + arm retraction + swing) and faster operation response. The overall fuel efficiency is improved by 10% under the same workload.
It supports three adjustable operation modes: Heavy (H) mode for high-load excavation, Normal (N) mode for conventional operation, and Economy (E) mode for light-load finishing, which can be switched freely according to working conditions to balance power and fuel consumption.

2.2 Outstanding Structural Durability

The boom, arm and undercarriage are all made of high-strength tensile steel, and the welded joints are treated with stress relief, which can withstand long-term high-load operation in harsh sites such as rock yards and quarries.
The X-shaped undercarriage frame adopts integral stamping and forming process, with excellent torsion resistance. Track shoes are available in steel and rubber options to adapt to hard rock, municipal road and other different ground conditions.
The swing support adopts double-row ball bearing design, with strong bearing capacity, and the main structural parts have a design service life of more than 15,000 hours under conventional working conditions.

3. Operation Comfort & Safety

The cab is ROPS (Roll Over Protective Structure) and FOPS (Falling Object Protective Structure) certified, which effectively protects the safety of operators in case of accidents.
The cab adopts full floating shock absorption design, with a built-in multi-adjustable shock absorption seat, and the internal operating noise is as low as 74 dB(A), which greatly reduces the fatigue of long-term operation.
The ergonomic control layout, short-stroke low-resistance operating joystick, and 7-inch high-definition LCD display that displays oil temperature, oil pressure, fuel level and fault codes in real time, greatly reduce the difficulty of operation.
The high-efficiency HVAC system with multiple air outlets, USB charging port and large storage space further improve the operating experience.

4. Maintenance Convenience

All daily maintenance points including engine oil dipstick, fuel filter, hydraulic oil filter and air filter are arranged on the side of the fuselage that can be accessed from the ground, and there is no need to climb the upper frame for daily inspection, which saves 40% of daily maintenance time.
The extended maintenance cycle: 500 hours for engine oil replacement, 2000 hours for hydraulic oil filter replacement, 5000 hours for hydraulic oil replacement, which reduces the maintenance cost in the whole life cycle.
It can be optionally equipped with Hitachi Global e-Service remote monitoring system, which supports real-time viewing of equipment operating status, fault early warning and maintenance reminder, effectively reducing non-operating downtime.

5. Application Scenarios

The Hitachi ZX120 is suitable for diversified construction scenarios:

Municipal engineering: pipeline excavation, foundation construction, road renovation
Landscaping: land sorting, tree pit digging, slope trimming
Rural construction: house foundation excavation, water conservancy ditch digging
Small mining sites: material loading and unloading, rock breaking (with optional breaker)It is also the preferred model for construction equipment leasing operators due to its wide applicability, low failure rate and high residual value.

Non flooded

No accident

Original product

Used Hitachi ZX120 Excavator

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