Used Doosan DX300LC-9CExcavator

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🏗️ Overview

The Doosan DX300LC-9C is a 30-ton class (medium-large) hydraulic crawler excavator belonging to Doosan's Generation 9 (Stage V / Tier 4 Final) lineup. The "9C" designation indicates it is a Stage V emission-compliant model, equipped with advanced aftertreatment systems (DPF + SCR) to meet the strictest environmental regulations in Europe, North America, and other global markets.

It is designed for heavy-duty earthmoving, construction, mining, quarrying, and demolition applications, offering a strong balance of power, fuel efficiency, and operator comfort.

📋 Key Specifications

Parameter	Specification
Model	DX300LC-9C
Class	30-ton (Medium-Large)
Generation	Stage V / Tier 4 Final (Gen 9)
Operating Weight	~29,700 – 30,200 kg (65,470 – 66,580 lbs)
Engine Model	Doosan DV11K-Tier 4 Final (Stage V)
Engine Type	6-cylinder, turbocharged, intercooled diesel
Displacement	11.15 L
Rated Power	~204 kW (274 hp) @ 1,900 rpm
Max Torque	~1,070 Nm @ 1,400 rpm
Fuel Tank Capacity	~550 L (145 gal)
Hydraulic Pump Type	Variable displacement axial piston pump (2 pumps)
System Pressure	350 bar (5,076 psi)
Bucket Capacity (Std.)	1.1 – 1.5 m³ (1.4 – 2.0 yd³)
Max Digging Depth	~7,150 – 7,300 mm (23.5 – 24.0 ft)
Max Reach (Ground Level)	~10,000 – 10,200 mm (32.8 – 33.5 ft)
Max Dumping Height	~7,500 mm (24.6 ft)
Max Digging Force (Boom)	~195 – 205 kN
Max Digging Force (Arm)	~140 – 148 kN
Travel Speed	2.8 / 4.5 / 7.2 km/h (Low / Mid / High)
Ground Pressure	~53 – 55 kPa
Track Width	600 mm (24-inch triple grouser shoes)

⚠️ Specifications may vary slightly by market/configuration. Always verify with the local Doosan dealer.

🔧 Engine — Doosan DV11K (Stage V)

Feature	Detail
Emission Standard	EU Stage V / EPA Tier 4 Final
Aftertreatment	DPF (Diesel Particulate Filter) + SCR (Selective Catalytic Reduction) + DOC (Diesel Oxidation Catalyst)
DEF (AdBlue) Tank	~30–40 L
Advantages	No EGR (Exhaust Gas Recirculation) → cleaner combustion, less soot, better fuel efficiency
Fuel Efficiency	Up to 10–15% improvement over previous Gen 7 models

The DV11K is Doosan's in-house developed engine, known for:

✅ High torque at low RPM → better digging performance
✅ Reduced maintenance (no EGR valve clogging issues)
✅ Lower noise & vibration levels

💪 Hydraulic System & Performance

Feature	Detail
Pump System	Dual variable-displacement axial piston pumps
Flow Rate	~2 × 320 L/min (total ~640 L/min)
Control System	EPOS (Electronic Pump & Oil Control System) — load-sensing + flow-sharing
Attachment Options	✅ Hydraulic breaker ✅ Hydraulic shear ✅ Quick coupler ✅ Thumb ✅ Ripper (optional)
Swing System	Hydraulic swing motor with auto-deceleration

The EPOS system intelligently manages hydraulic flow, ensuring:

🔄 Simultaneous operation of boom, arm, bucket, and swing
⚡ Fast cycle times
🛢️ Optimized fuel consumption

🖥️ Smart Technology & Electronics

System	Function
DoosanConnect™	Telematics — remote machine monitoring, location tracking, diagnostics via smartphone/web
Smart Care System	Real-time engine & hydraulic data, maintenance alerts, hour-meter tracking
Eco Mode	Reduces engine RPM & pump flow during light work → saves up to 10% fuel
Power Mode	Boosts performance for heavy digging tasks
Auto Idle Stop	Engine auto-shuts off after 5 min of inactivity → reduces fuel waste & emissions
LED Work Lights	Bright, energy-efficient lighting for night operations
Rear View Camera	Standard — improves safety & visibility
7-inch LCD Monitor	Multi-function display with camera feed, machine data, and settings

💺 Operator Comfort & Cab

Feature	Detail
Cab Type	ROPS/FOPS certified, pressurized & filtered
Seat	Full air-suspension seat with heating & ventilation
Climate Control	Dual-zone automatic A/C
Noise Level	~67 dB(A) — one of the quietest in its class
Vibration Level	Reduced by 30% vs. previous generation (rubber mounts + air suspension)
Controls	Electronic joystick with multi-function buttons + foot pedal
Storage	Ample storage compartments, USB charging ports, cup holders
Visibility	Large glass area, slim A-pillar design, mirrors

🛡️ Durability & Maintenance

| Feature | Detail ||---|---|| Undercarriage | Heavy-duty X-frame with reinforced rollers & idlers || Track Shoes | 600mm triple-grouser (excellent for mud/rock) || Service Intervals | Engine oil: 500 hrs | Hydraulic oil: 4,000 hrs | Fuel filter: 500 hrs || Ground-Level Service Points | Easy access to filters, drains, and grease points || Boom/Arm | High-strength steel, stress-relieved welds || Counterweight | Designed for stability with heavy attachments (breakers, etc.) |

🆚 Comparison with Competitors

Model	Weight	Power	Bucket	Key Advantage
Doosan DX300LC-9C	~30t	274 hp	1.1–1.5 m³	Fuel efficiency, no-EGR engine, telematics
CAT 330 GC	~30t	269 hp	1.1–1.5 m³	Cat dealer network, Cat Connect
Komatsu PC300LC-11	~30t	241 hp	1.0–1.4 m³	Komatsu Smart Construction
Hyundai R300LC-9S	~30t	261 hp	1.1–1.5 m³	Competitive pricing
Volvo EC300E	~30t	258 hp	1.0–1.4 m³	Volvo Care Cab, safety features

✅ Doosan's edge: Higher power output (274 hp), no EGR (less maintenance), excellent fuel economy, and strong resale value.

💰 Approximate Pricing (2024 Estimate)

Region	Price Range (USD)
North America	$180,000 – $220,000
Europe	€170,000 – €210,000
Middle East / Asia	$160,000 – $200,000

Prices vary by configuration (cab, A/C, bucket, attachment-ready, etc.)

✅ Summary — Who Is It For?

Application	Suitability
🏗️ General Construction	⭐⭐⭐⭐⭐
🪨 Quarrying & Mining	⭐⭐⭐⭐⭐
🏚️ Demolition (w/ breaker)	⭐⭐⭐⭐⭐
🛤️ Road Building	⭐⭐⭐⭐⭐
🌿 Landscaping / Pipeline	⭐⭐⭐⭐
❄️ Cold Climate	⭐⭐⭐⭐ (heated cab, engine preheat)

🎯 Key Selling Points

#	Selling Point
1	🔥 274 hp — best-in-class power for 30t excavator
2	🌱 Stage V, No-EGR engine — cleaner, less maintenance
3	🛢️ Up to 15% fuel saving vs. previous gen
4	📡 DoosanConnect telematics included
5	💺 Best-in-class operator comfort (air seat, quiet cab)
6	🔧 Easy maintenance with ground-level service points
7	🌐 Global dealer network + strong parts availability

The Doosan DX300LC-9C is one of the most competitive 30-ton excavators on the market today, combining raw power, fuel efficiency, smart technology, and operator comfort in a durable, well-engineered package. 🚜💪