Used Hyundai 305-9Excavator

Reading: 23

📋 1. OVERVIEW

Item	Detail
Manufacturer	Hyundai Construction Equipment (Hyundai CE)
Model	R305LC-9 (commonly called "305-9")
Series	Generation 9 (9-Series) — launched ~2019-2020
Class	Medium Excavator (~30-ton class)
Predecessor	R305LC-7 / R305LC-7A (7-Series)
Target Markets	Construction, mining, road building, demolition, land development

The 305-9 is one of the most popular models in Hyundai's 9-Series lineup, designed to replace the proven 7-Series with significant improvements in fuel efficiency, operator comfort, and smart technology.

& 2. ENGINE SPECIFICATIONS

Parameter	Specification
Engine Model	Hyundai D6GA (in-line 6-cylinder turbocharged diesel)
Displacement	6.0 Liters
Rated Power	184 HP (137 kW) @ 1,900 rpm
Max Torque	~660 Nm @ 1,400 rpm
Emission Standard	Tier 4 Final / EU Stage V (via SCR + DPF system)
Fuel Tank Capacity	~400 Liters
AdBlue/DEF Tank	~20 Liters (for SCR system)

✅ The D6GA engine is known for its reliability, fuel efficiency, and low emissions. It uses Selective Catalytic Reduction (SCR) with Diesel Exhaust Fluid (DEF) to meet strict emission standards without sacrificing power.

📐 3. DIMENSIONS & WEIGHT

Parameter	Value
Operating Weight	~30,500 kg (30.5 tonnes)
Overall Length (w/o bucket)	~9,950 mm
Overall Width (tracks)	~3,190 mm
Overall Height (to cab top)	~3,030 mm
Track Gauge	2,590 mm
Ground Clearance	~460 mm
Tail Swing Radius	~2,980 mm

🏗️ 4. WORKING PERFORMANCE (Digging Capacity)

Parameter	Value (Approx.)
Max Digging Depth	6,700 – 7,000 mm
Max Digging Reach	9,700 – 10,000 mm
Max Dumping Height	~7,000 mm
Max Vertical Wall Dig	~5,000 – 5,500 mm
Max Digging Force (Bucket)	~155 kN
Max Digging Force (Arm)	~110 kN
Bucket Capacity (Standard)	1.2 – 1.5 m³ (varies by configuration)

🔧 5. HYDRAULIC SYSTEM

Parameter	Specification
Main Pump Type	Variable Displacement Axial Piston Pump (×2)
Max Flow Rate	2 × 180–200 L/min (total ~360–400 L/min)
System Pressure	350 bar (5,076 psi)
Auxiliary Hydraulic Flow	~40–50 L/min (for attachments)
Hydraulic Circuit	Load-sensing + Negative flow control

✅ The hydraulic system is optimized for smooth operation and high productivity with lower fuel consumption compared to the 7-Series.

🖥️ 6. 9-SERIES SMART FEATURES & TECHNOLOGY

This is where the 305-9 really shines compared to its predecessor:

Feature	Description
🎯 8-inch LCD Monitor	Large, high-resolution color display showing machine status, fuel consumption, maintenance alerts, camera feed
🌿 ECO Mode	Automatically optimizes engine speed & hydraulic flow for up to 10–15% fuel savings
🔄 Work Mode Selector	Choose between P (Power), E (Eco), S (Smooth), B (Breakout) modes via toggle switch
🤖 Auto Idle Shutdown	Engine automatically stops after preset idle time (saves fuel & reduces emissions)
📊 Digital Dashboard	Real-time monitoring of fuel economy, working hours, engine hours, hydraulic temperature
📷 Rear-View Camera	Standard on most configurations for improved safety
🌐 Telematics Ready	Compatible with Hyundai CE telematics system (fleet management, remote diagnostics)
🛡️ Anti-Theft System	Immobilizer & GPS tracking capability

🪑 7. OPERATOR COMFORT (NEW CAB DESIGN)

The 9-Series cab was completely redesigned for operator satisfaction:

Feature	Detail
Cab Type	ROPS/FOPS certified, pressurized with filtration
Seat	Full-suspension air-ride seat with armrests & adjustable lumbar support
Noise Level	~68 dB(A) — significantly quieter than 7-Series (~72 dB)
Air Conditioning	High-capacity auto AC with 4-direction vents
Visibility	30% improved visibility with larger windows, slimmer pillars
Controls	Joystick-type levers with fingertip control, reduced effort by ~30%
Storage	Multiple cup holders, phone holder, USB charging ports
Floor	Flat floor design with rubber mat, anti-slip
Door	Wide-opening door with gas strut assist

🛤️ 8. UNDERCARRIAGE & ATTACHMENTS

Component	Detail
Track Type	Steel track, 600mm width (adjustable: 500/600/700mm options)
Track Shoes	600mm triple-grouser (or single-grouser option)
Dozer Blade	Available (straight blade, ~3,200mm width)
Quick Coupler	Available (hydraulic or mechanical)
Hydraulic Thumb	Compatible
Pipeline Kit	Available for hydraulic breaker
Long Reach Arm	Optional (up to ~13m reach)
High Dump Configuration	Optional (increased dumping height)

📊 9. PERFORMANCE COMPARISON: 305-9 vs 305-7

Parameter	305-7 (Old)	305-9 (New)	Improvement
Engine Power	184 HP	184 HP	Same
Fuel Efficiency	Baseline	~10–15% better	✅ Major upgrade
Noise Level	~72 dB	~68 dB	✅ Quieter
Operator Comfort	Good	Excellent	✅ Redesigned cab
Technology	Basic LCD	8" Smart LCD + Telematics	✅ Major upgrade
Emission	Tier 4i	Tier 4 Final	✅ Cleaner
Maintenance Cost	Standard	~20% lower	✅ Longer intervals
Resale Value	Good	Higher	✅ Newer tech

💰 10. APPROXIMATE PRICING (2024 Estimate)

Region	Price Range (USD)
North America	$180,000 – $220,000
Europe	€170,000 – €210,000
Middle East / Asia	$150,000 – $190,000
China	¥1,100,000 – ¥1,400,000

⚠️ Prices vary significantly based on configuration (blade, coupler, A/C, etc.) and market.

✅ 11. KEY STRENGTHS (SUMMARY)

✅ Strength	Explanation
🏆 Best-in-class fuel efficiency	ECO mode + optimized hydraulics = lower operating costs
🪑 Superior operator comfort	New cab with low noise, great visibility, air-ride seat
🔧 Lower maintenance costs	Extended service intervals (500/1,000/2,000 hr)
📡 Smart & connected	Telematics, 8" display, remote diagnostics
🛡️ Reliable engine	Proven D6GA with Tier 4 Final compliance
💰 Strong resale value	9-Series holds value better than competitors
🏗️ Versatile	Multiple configurations: standard, long reach, high dump, demolition

🆚 12. MAIN COMPETITORS

Competitor	Model	Class
CAT	336 GC / 330	33-ton
Komatsu	PC300LC-11 / PC350LC-11	30–35 ton
Volvo	EC300E / EC350E	30–35 ton
Doosan (Develon)	DX300LC-7 / DX350LC-7	30–35 ton
Kobelco	SK300LC-10 / SK350LC-10	30–35 ton
Hitachi	ZX330-6 / ZX350-6	33–35 ton
JCB	JS330LC / JS370LC	33–37 ton

💡 The 305-9 is generally considered one of the best value-for-money options in the 30-ton class, especially in terms of fuel economy and operator comfort.

🎯 13. IDEAL APPLICATIONS

Application	Suitability
🏗️ General Construction	⭐⭐⭐⭐⭐
🛣️ Road Building	⭐⭐⭐⭐⭐
⛰️ Mining / Quarrying	⭐⭐⭐⭐
🏚️ Demolition	⭐⭐⭐⭐ (with high dump/long reach)
🌊 Dredging / Land Reclamation	⭐⭐⭐⭐
🌳 Forestry	⭐⭐⭐ (with grapple)
🔧 Utility / Pipeline	⭐⭐⭐⭐⭐

📌 CONCLUSION

The Hyundai R305LC-9 (305-9) is a modern, fuel-efficient, and operator-friendly medium excavator that represents a significant generational leap from the 7-Series. With its Tier 4 Final engine, smart 9-Series technology, redesigned cab, and excellent fuel economy, it is one of the top choices in the 30-ton class for contractors who value low operating costs, comfort, and reliability.

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