Used Hitachi 70 Excavator

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The Hitachi ZX70 (also known as Zaxis 70) is a 7-ton class mini excavator manufactured by Hitachi Construction Machinery Co., Ltd. It is one of the most popular compact excavators in the world, widely used in construction, landscaping, utility work, and urban development.

📋 1. GENERAL OVERVIEW

Parameter	Details
Model	ZX70US-5 / ZX70USLC-5 (North America) / ZX70-5G / ZX70LC-5G (Global)
Class	Mini / Compact Excavator (7-ton)
Manufacturer	Hitachi Construction Machinery (Japan)
Production	Since ~2017 (5th generation "-5" series)
Operating Weight	~6,800 – 7,200 kg (14,990 – 15,870 lbs)
Engine	Isuzu AH-4HK1X (Tier 4 Final / Stage V)
Horsepower	~48 hp (35.8 kW) @ 2,000 rpm
Fuel Tank	~120 L (31.7 gal)
Track Width	400 – 600 mm (adjustable rubber tracks)

🔧 2. ENGINE & POWERTRAIN

Feature	Specification
Engine Model	Isuzu AH-4HK1XQA
Type	4-cylinder, turbocharged, intercooled diesel
Displacement	3.0 L
Emission Standard	EPA Tier 4 Final / EU Stage V
Aftertreatment	DPF (Diesel Particulate Filter) + SCR (Selective Catalytic Reduction) — DEF (Diesel Exhaust Fluid) required
Max Power	48.3 hp (36 kW)
Max Torque	~174 Nm @ 1,400 rpm
Cooling System	Water-cooled with radiator
Fuel Type	Diesel (ULSD)

✅ The engine is known for being fuel-efficient, reliable, and low-emission. The SCR system eliminates the need for DPF regeneration in most operating conditions.

📐 3. DIMENSIONS & WEIGHT

Specification	ZX70US (Zero Tail Swing)	ZX70USLC (Long Counterweight)
Operating Weight	6,800 kg (14,991 lbs)	7,200 kg (15,873 lbs)
Transport Length	5,890 mm	6,680 mm
Transport Width	2,190 mm	2,190 mm
Transport Height	2,590 mm	2,690 mm
Ground Clearance	380 mm	380 mm
Track Length on Ground	2,190 mm	2,190 mm
Tail Swing Radius	~0 mm (Zero Tail Swing) ✅	~1,450 mm

🔑 Zero Tail Swing (ZX70US) is ideal for tight urban spaces — the rear of the machine doesn't swing out during operation.

🏗️ 4. HYDRAULIC SYSTEM

Feature	Specification
Pump Type	Variable displacement axial piston pump (2 pumps)
System Pressure	35 MPa (5,076 psi)
Flow Rate	2 × 45 L/min (total ~90 L/min)
Hydraulic Circuit	Open center / Load sensing
Auxiliary Hydraulic Flow	~40 L/min (for attachments)
Auxiliary Pressure	21 MPa (3,046 psi)
Hydraulic Oil Capacity	~80 L

💪 5. DIGGING PERFORMANCE

Parameter	ZX70US-5	ZX70USLC-5
Max Digging Depth	3,920 mm (12'10")	4,230 mm (13'11")
Max Digging Reach	6,310 mm (20'8")	6,620 mm (21'9")
Max Dumping Height	4,550 mm (14'11")	4,860 mm (15'11")
Max Digging Force (Arm)	36.8 kN (8,273 lbf)	40.2 kN (9,037 lbf)
Max Digging Force (Bucket)	27.8 kN (6,250 lbf)	30.5 kN (6,857 lbf)
Bucket Capacity	0.16 – 0.28 m³ (0.21 – 0.37 yd³)
Blade Dozer Capacity	Optional (available)

🪑 6. CAB & OPERATOR COMFORT

Feature	Details
Cab Type	ROPS/FOPS certified, fully enclosed
Air Conditioning	Standard ✅
Heater	Standard ✅
Seat	Suspension seat with armrests, adjustable
Controls	Joystick-type (proportional) — easy to learn
Display	LCD multi-function monitor (engine info, diagnostics, camera)
Rearview Camera	Standard ✅
Sound Level	~72 dB(A) — relatively quiet
Noise	Low vibration design
Door	Large opening door, wide entry

👍 Hitachi is known for having one of the most comfortable cabs in the mini excavator class.

🛡️ 7. UNDERCARRIAGE

Feature	Specification
Track Type	Rubber tracks (standard)
Track Width Options	400mm / 450mm / 500mm / 600mm
Track Shoe Width	400mm
Number of Rollers	5 per side (top) + 1 idler + 1 drive sprocket
Ground Pressure	~34 kPa (low ground pressure)
Dozer Blade	Optional (width: 1,830mm)
Rubber Track Advantage	No damage to pavement, roads, finished surfaces ✅

🔌 8. ATTACHMENTS (VERSATILITY)

The ZX70 is extremely versatile with quick coupler (standard on most models):

Attachment	Use Case
🪣 Buckets	200mm – 900mm (digging, grading)
🔨 Hydraulic Breaker	Demolition, concrete breaking
🪚 Hydraulic Thumb	Grappling logs, pipes, debris
🔩 Auger	Post holes, drilling (150mm – 600mm)
🧹 Grapple	Sorting, recycling, landscaping
🔧 Tilt Rotator	360° rotation of attachment
❄️ Hydraulic Hammer	Rock breaking
🧹 Sweeper	Street cleaning
🌿 Rake	Landscaping, leveling
🪨 Ripper	Hard ground, frozen soil

⚡ Quick coupler allows attachment change in under 60 seconds without tools.

🆚 9. COMPETITORS COMPARISON

Model	Weight	Engine HP	Max Depth	Zero Tail Swing
Hitachi ZX70US-5	6,800 kg	48 hp	3,920 mm	✅ Yes
Cat 307 E2	7,200 kg	54 hp	4,170 mm	❌ No
Komatsu PC78US-11	7,600 kg	53 hp	4,190 mm	✅ Yes
Kobelco SK75SR-3	7,400 kg	48 hp	3,970 mm	✅ Yes
Doosan DX75R-5	7,450 kg	55 hp	4,320 mm	❌ No
Volvo ECR75	7,300 kg	48 hp	4,050 mm	❌ No
JCB 8065	6,500 kg	48 hp	3,950 mm	✅ Yes

📊 Hitachi ZX70US stands out for its compact size, zero tail swing, fuel efficiency, and excellent resale value.

✅ 10. KEY ADVANTAGES

Advantage	Description
🔄 Zero Tail Swing	Works in tight spaces without hitting walls/fences
⛽ Fuel Efficient	~3.5 – 5 L/hour depending on workload
🔧 Low Maintenance	Long service intervals (500h / 1000h)
💰 High Resale Value	Hitachi holds value very well
🖥️ Smart Technology	Telematics-ready, remote monitoring available
🛡️ Reliable Engine	Isuzu engine — proven worldwide
🪑 Best-in-class Cab	Comfort, visibility, low noise
🌐 Global Parts Network	Easy to find parts anywhere

📊 11. TECHNICAL SUMMARY

Category	Specification
Engine	Isuzu AH-4HK1X, 48 hp, 3.0L, Tier 4 Final
Operating Weight	6,800 – 7,200 kg
Max Dig Depth	3,920 – 4,230 mm
Max Reach	6,310 – 6,620 mm
Bucket Capacity	0.16 – 0.28 m³
Track Width	400 – 600 mm rubber
Fuel Tank	~120 L
Hydraulic Flow	~90 L/min
Transport Height	~2,590 – 2,690 mm
Warranty	2 years / 2,000 hours (varies by region)

🎯 12. TYPICAL APPLICATIONS

Application	Details
🏗️ Residential construction	Foundation, trenches, utility work
🌿 Landscaping	Grading, planting, drainage
🔌 Utility work	Water, gas, electric line installation
🏙️ Urban development	Tight spaces, sidewalks, alleys
🏚️ Demolition	Small building tear-down
🌾 Agriculture	Ditch cleaning, fence installation
🛣️ Road work	Small repairs, curb work
❄️ Snow removal	With snow blade attachment

💰 13. APPROXIMATE PRICING (2024, USD)

Configuration	Price Range (USD)
ZX70US-5 (Basic)	$55,000 – $65,000
ZX70USLC-5 (Long Counterweight)	$58,000 – $68,000
With AC Cab + Aux Hydraulics	$62,000 – $72,000
With Blade + Thumb	$68,000 – $78,000

⚠️ Prices vary by region, dealer, and configuration.

🏁 14. CONCLUSION

The Hitachi ZX70 is widely regarded as one of the best 7-ton mini excavators on the market. Its combination of:

✅ Zero tail swing design
✅ Fuel-efficient Isuzu engine
✅ Excellent operator comfort
✅ High versatility with attachments
✅ Strong resale value
✅ Low operating costs

...makes it a top choice for contractors, rental companies, and small-to-medium construction businesses worldwide.

📞 For the latest specs, visit: Hitachi Construction Machinery Official Website

Would you like more details on any specific aspect — such as maintenance schedule, attachment options, or comparison with a specific competitor? 🚜