Used Hitachi ZX70Excavator

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🏗️ 1. Overview

The Hitachi ZX70 is a 7-ton class mini excavator manufactured by Hitachi Construction Machinery. It is designed for urban construction, landscaping, utility work, pipe laying, and tight-space operations where larger machines cannot operate. The current generation is the ZX70-6 (launched around 2021), which replaced the ZX70-5G and ZX70-3.

It is one of the most popular compact excavators in its class, known for reliability, fuel efficiency, and operator comfort.

& 2. Key Specifications (ZX70-6 Model)

Parameter	Specification
Operating Weight	~7,000 – 7,300 kg (15,432 – 16,094 lbs)
Engine	Isuzu AA-4HK1XQB 4-cylinder turbodiesel
Engine Power	40.4 kW (54.2 hp) @ 2,000 rpm
Emissions	Stage V / Tier 4 Final (DPF + SCR)
Fuel Tank Capacity	~120 L (31.7 gal)
Max Digging Depth	~3,950 – 4,200 mm (13.0 – 13.8 ft)
Max Digging Reach	~5,800 – 6,000 mm (19.0 – 19.7 ft)
Max Dumping Height	~4,500 mm (14.8 ft)
Bucket Capacity	0.22 – 0.28 m³ (0.29 – 0.37 cu yd)
Hydraulic Pump Flow	~98 L/min (25.9 gpm)
System Pressure	~21 MPa (3,046 psi)
Travel Speed	~4.7 km/h (2.9 mph)
Swing Speed	~8.2 rpm
Ground Pressure	~33 kPa (4.8 psi)
Dozer Blade	Available (width: ~2,220 mm)

🔧 3. Engine Details

Feature	Detail
Make/Model	Isuzu AA-4HK1XQB
Type	4-cylinder, turbocharged, intercooled diesel
Displacement	3.0 L
Aftertreatment	DPF (Diesel Particulate Filter) + SCR (Selective Catalytic Reduction) with AdBlue
Fuel Efficiency	One of the best in class — approx. 4–6 L/hr depending on workload
Cooling	Water-cooled with fan

The engine is compact yet powerful, meeting the latest emissions regulations without sacrificing performance.

🏗️ 4. Hydraulic System

Feature	Detail
System Type	Open-center load-sensing hydraulic system
Pump Type	Variable displacement axial piston pump
Total Flow	~98 L/min (can be split between upper & lower)
Auxiliary Flow	Available for attachments (breakers, augers, etc.)
Quick Coupler	Compatible (hydraulic quick coupler available as option)
Pattern Change Valve	Optional — allows switching between different attachment patterns

📐 5. Dimensions

Dimension	Measurement
Overall Length (w/ blade)	~5,990 mm (19.7 ft)
Overall Width	~2,220 mm (7.3 ft)
Overall Height (to cab top)	~2,600 mm (8.5 ft)
Track Width	Adjustable: 1,200 / 1,400 / 1,600 mm
Ground Clearance	~360 mm (14.2 in)
Tail Swing Radius	~600 mm (ZERO tail swing design!) ⭐

⭐ The zero tail swing (ZTS) is a major advantage — the upper structure stays within the track width, making it ideal for working near walls, fences, and buildings.

🪑 6. Operator Cab & Comfort

Feature	Detail
Cab Type	Fully enclosed ROPS/FOPS certified cab
Air Conditioning	Standard
Suspension Seat	Adjustable, air-suspended (reduces vibration)
Controls	Joystick-type (proportional) with finger-tip controls
Display	7-inch LCD multi-function monitor (engine info, diagnostics, camera)
Rearview Camera	Standard
Noise Level	~70 dB(A) — relatively quiet for its class
Visibility	Excellent all-around visibility with large glass panels
Dozer/Blade Control	Integrated joystick control

🧠 7. Intelligent Machine Control (iMC)

The ZX70-6 features Hitachi's Intelligent Machine Control (iMC) technology:

Technology	Function
3D Machine Guidance Ready	GPS/GNSS-ready for grading & digging accuracy
2D Grade Control	Automatic blade/bucket leveling
Auto Swing Stop	Stops swing at preset angles for alignment
Auto Dig Assist	Assists operators in achieving target depths
Remote Diagnostics	Hitachi SiteConnect — remote machine monitoring via telematics

These features make the ZX70 suitable for precision work even by less experienced operators.

🔩 8. Undercarriage & Track System

Feature	Detail
Track Type	Rubber tracks (standard) — reduces ground damage
Track Width Options	1,200 / 1,400 / 1,600 mm (adjustable)
Shoe Type	Triple-grouser or standard — replaceable
Undercarriage Frame	Reinforced X-frame for durability
Maintenance Access	Easy access to filters, drains, and grease points

🛠️ 9. Attachment Versatility

The ZX70 is highly versatile with a wide range of attachments:

Attachment	Application
🪣 Standard Bucket (200–300mm)	General digging
🔨 Hydraulic Breaker	Demolition, rock breaking
🔩 Auger/Drill	Post holes, piling
🪓 Hydraulic Grapple	Material handling, sorting
🧹 Sweeper	Road cleaning
🔧 Thumb	Pipe handling, log gripping
🪚 Ripper (single shank)	Hard ground breaking
🔀 Tilt Rotator	360° attachment rotation
❄️ Hydraulic Hammer	Light demolition

🆚 10. Comparison with Competitors

Feature	Hitachi ZX70-6	Cat 307 CR	Komatsu PC78US-11	Kubota KX080-4
Weight	~7,100 kg	~7,200 kg	~7,800 kg	~8,000 kg
Power	54 hp	54 hp	57 hp	50 hp
Tail Swing	✅ Zero	✅ Zero	✅ Zero	✅ Zero
Emissions	Stage V	Tier 4 Final	Stage V	Stage V
iMC/Tech	⭐ Excellent	✅ Good	✅ Good	Basic
Price Range	$$$	$$$$	$$$$	$$$

Hitachi is often praised for best-in-class technology (iMC) and fuel efficiency.

✅ 11. Key Advantages

✅ Advantage	Description
🏆 Zero Tail Swing	Works in the tightest spaces
&Fuel Efficient**	Lowest fuel consumption in class (~4-6 L/hr)
🧠 Intelligent Machine Control	GPS-ready, auto-assist features
🪑 Operator Comfort	Air-suspended seat, quiet cab, AC
🔧 Low Maintenance	Easy access, long service intervals (500 hrs)
📡 Telematics (SiteConnect)	Real-time remote monitoring
🔄 High Resale Value	Strong brand reputation & demand
🌍 Emissions Compliant	Stage V / Tier 4 Final

📋 12. Common Applications

🏗️ Application	Details
Residential construction	Foundation, trenching, utility work
Landscaping	Grading, planting, irrigation
Road/utility work	Pipe laying, cable trenching
Demolition	Light demolition with breaker
Rental industry	Very popular in equipment rental fleets
Municipal work	Sidewalk repair, manhole work
Agriculture	Drainage, fence line work

💰 13. Approximate Pricing (2024)

Configuration	Price Range (USD)
New (Basic)	$75,000 – $90,000
New (Fully Loaded w/ iMC)	$100,000 – $120,000
Used (2018-2021)	$50,000 – $75,000
Rental (Daily)	$250 – $450/day

Prices vary by region and dealer.

🔄 14. Model Generations

Generation	Model	Years	Notes
1st	ZX70	1990s	Original 7-ton class
2nd	ZX70-3	2000s	Updated engine & cab
3rd	ZX70-5 / 5G	2012–2020	Tier 4 Interim, improved comfort
4th (Current)	ZX70-6	2021–Present	Stage V, iMC, new cab, Isuzu engine ⭐

🏁 15. Summary

Category	Rating
Performance	⭐⭐⭐⭐☆ (4/5)
Fuel Efficiency	⭐⭐⭐⭐⭐ (5/5)
Technology (iMC)	⭐⭐⭐⭐⭐ (5/5)
Operator Comfort	⭐⭐⭐⭐⭐ (5/5)
Durability/Reliability	⭐⭐⭐⭐⭐ (5/5)
Value for Money	⭐⭐⭐⭐☆ (4/5)

🔑 The Hitachi ZX70-6 is one of the most technologically advanced and fuel-efficient mini excavators in the 7-ton class, ideal for urban and precision work.

Would you like me to go deeper into any specific area — such as maintenance schedule, attachment recommendations, or comparison with a specific competitor? 🚜