Used Kobelco SK350 Excavator

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🏢 1. Overview

Item	Details
Manufacturer	Kobelco Construction Machinery Co., Ltd. (Japan)
Series	SK Series (Super Kobelco)
Model Variants	SK350LC-8 (older gen), SK350LC-10 (current gen)
Class	Large Hydraulic Excavator (30–35 ton class)
Primary Use	Mining, quarrying, large-scale earthmoving, infrastructure

The SK350 is one of Kobelco's flagship large-class excavators, known for fuel efficiency, durability, and operator comfort. It competes with machines like the Cat 336, Komatsu PC350, and Hitachi ZX350.

⚙️ 2. Engine & Powertrain

Specification	SK350LC-8	SK350LC-10
Engine	Isuzu AA-6HK1X	Isuzu AH-6HK1X
Type	6-cylinder, turbocharged, intercooled diesel	6-cylinder, turbocharged, intercooled diesel
Displacement	7.79 L	7.79 L
Rated Power	~247 HP (184 kW) @ 2,000 rpm	~276 HP (206 kW) @ 2,000 rpm
Max Torque	~896 N·m @ 1,400 rpm	~961 N·m @ 1,400 rpm
Emission Standard	Tier 3 / Stage IIIA	Tier 4 Final / Stage IV
Fuel Tank Capacity	~600 L (158.5 gal)	~600 L (158.5 gal)

🔑 The Isuzu AH-6HK1X engine is renowned for its reliability, high torque at low RPM, and excellent fuel economy.

📐 3. Dimensions & Weight

Specification	SK350LC-8	SK350LC-10
Operating Weight	~33,000–33,800 kg (72,750–74,500 lbs)	~34,900 kg (76,940 lbs)
Transport Length	~10,770 mm (35.3 ft)	~10,870 mm (35.7 ft)
Transport Width	~3,190 mm (10.5 ft)	~3,190 mm (10.5 ft)
Transport Height	~3,260 mm (10.7 ft)	~3,260 mm (10.7 ft)
Ground Clearance	~470 mm (18.5 in)	~470 mm (18.5 in)
Track Width	600 mm / 700 mm / 800 mm (adjustable)	600 mm / 700 mm / 800 mm
Track Shoe Width	600 mm	600 mm

🔧 4. Hydraulic System & Performance

Specification	SK350LC-8	SK350LC-10
Main Pump Type	2× Variable displacement axial piston pump	2× Variable displacement axial piston pump
Pump Flow	2× 280 L/min (total 560 L/min)	2× 284 L/min (total 568 L/min)
System Pressure	34.3 MPa (5,000 psi)	34.3 MPa (5,000 psi)
Hydraulic Circuit	Load-sensing + EPC (Electronic Power Control)	Load-sensing + EPC
Swing System	Closed-center hydraulic swing motor	Closed-center hydraulic swing motor
Swing Speed	~7.5 rpm	~7.5 rpm
Swing Torque	~130 kN·m	~130 kN·m
Travel Speed	5.0 km/h / 3.1 mph	5.0 km/h / 3.1 mph
Gradeability	70% (35°)	70% (35°)

🪣 5. Working Range (Digging Performance)

Specification	SK350LC-8	SK350LC-10
Max Digging Depth	~7,070 mm (23.2 ft)	~7,330 mm (24.0 ft)
Max Digging Reach	~10,560 mm (34.6 ft)	~10,770 mm (35.3 ft)
Max Dumping Height	~7,770 mm (25.5 ft)	~7,770 mm (25.5 ft)
Max Digging Radius (Ground Level)	~10,360 mm (34.0 ft)	~10,560 mm (34.6 ft)
Max Vertical Wall Digging Depth	~6,040 mm (19.8 ft)	~6,250 mm (20.5 ft)
Max Force (Boom Cylinder)	~200 kN	~210 kN
Max Force (Arm Cylinder)	~135 kN	~140 kN
Max Force (Bucket Cylinder)	~170 kN	~175 kN

Bucket Capacities (Standard)

Bucket Type	Capacity
Standard (Rock) Bucket	1.4 m³ (1.83 cu yd)
Heavy Duty (Rock) Bucket	1.5–1.6 m³ (1.96–2.09 cu yd)
General Purpose Bucket	1.6 m³ (2.09 cu yd)
Grading Bucket	1.4 m³ (1.83 cu yd)

🖥️ 6. Cab & Operator Comfort

Feature	Details
Cab Type	ROPS/FOPS certified, fully enclosed, pressurized
Air Conditioning	Full auto climate control
Seat	Air-suspended, heated, fully adjustable Grammer seat
Display	7-inch LCD multi-function monitor (SK350LC-10)
Controls	Electronic joystick with auxiliary controls
Noise Level	~69 dB(A) (one of the quietest in class)
Visibility	Large front/side/rear windows, rearview camera (optional)
Smart Control System	✅ Auto engine speed control, auto idle stop, workload management
ECO Mode	✅ Reduces engine RPM during light operations, saving up to 10–15% fuel
LED Work Lights	✅ Standard
USB/Audio	✅ Available

🧠 7. Key Technologies

Technology	Description
🎯 Smart Control (SK350LC-10)	Automatically matches engine output to hydraulic demand, optimizing fuel efficiency by up to 10%
🟢 ECO Mode	Lowers engine speed during idling and light-load operations
📊 KOBELCO Link (Telematics)	Remote machine monitoring, fleet management, maintenance alerts via GPS
🔄 Auto Idle Stop	Engine automatically shuts off after 5 seconds of inactivity
⚡ EPC (Electronic Power Control)	Precise control of engine-pump coordination for smoother operation
🛡️ Anti-Theft System	Engine immobilizer + GPS tracking
🔧 Easy Maintenance Design	Ground-level daily checks, side-mounted radiators, large-opening engine hood

📊 8. Fuel Consumption

Operating Condition	Approximate Fuel Consumption
Heavy Loading	~30–35 L/hr (7.9–9.2 gal/hr)
Medium Loading	~22–26 L/hr (5.8–6.9 gal/hr)
Light Loading / Idle	~8–12 L/hr (2.1–3.2 gal/hr)
Average (Mixed)	~22–25 L/hr (5.8–6.6 gal/hr)

💡 With ECO + Smart Control, fuel savings of 10–15% vs. conventional machines are achievable.

🆚 9. Comparison with Competitors

Spec	Kobelco SK350LC-10	CAT 336 GC	Komatsu PC350LC-11	Hitachi ZX350LC-6
Power	276 HP	314 HP	274 HP	262 HP
Weight	34,900 kg	35,600 kg	34,700 kg	34,800 kg
Bucket	1.4–1.6 m³	1.5–1.7 m³	1.4–1.6 m³	1.4–1.5 m³
Max Dig Depth	7,330 mm	7,450 mm	7,300 mm	7,200 mm
Fuel Efficiency	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐
Resale Value	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐
Cab Comfort	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐

🏆 Kobelco SK350 excels in fuel efficiency, operator comfort, and resale value — making it a top choice for rental fleets and owner-operators.

✅ 10. Strengths & Weaknesses

✅ Strengths	❌ Weaknesses
Excellent fuel efficiency (class-leading)	Slightly lower raw power vs. CAT 336
Outstanding operator comfort & low noise	Higher initial purchase price
Excellent build quality & durability	Parts can be pricier than Chinese brands
High resale value	Limited dealer network in some regions
Smart Control = lower operating cost	Heavier than some competitors
Reliable Isuzu engine
Easy maintenance access

🎯 11. Typical Applications

Application	Suitability
🪨 Mining & Quarrying	⭐⭐⭐⭐⭐
🏗️ Large-scale Earthmoving	⭐⭐⭐⭐⭐
🛣️ Road Construction	⭐⭐⭐⭐⭐
🏢 Demolition	⭐⭐⭐⭐
🚿 Dredging	⭐⭐⭐⭐
🌲 Land Clearing	⭐⭐⭐⭐
🏗️ Foundation Work	⭐⭐⭐⭐⭐

💰 12. Approximate Pricing (2024 Estimate)

Configuration	Price Range (USD)
New SK350LC-10 (Standard)	$280,000 – $320,000
New SK350LC-10 (Long Reach / HD)	$320,000 – $360,000
Used (2015–2018, ~5,000–8,000 hrs)	$130,000 – $180,000
Used (2010–2014, ~8,000–12,000 hrs)	$90,000 – $130,000

(Prices vary significantly by region, condition, and configuration)

📝 13. Summary

	Rating
Power	⭐⭐⭐⭐ (4/5)
Fuel Efficiency	⭐⭐⭐⭐⭐ (5/5)
Operator Comfort	⭐⭐⭐⭐⭐ (5/5)
Durability	⭐⭐⭐⭐⭐ (5/5)
Technology	⭐⭐⭐⭐⭐ (5/5)
Resale Value	⭐⭐⭐⭐⭐ (5/5)
Overall	🏆 9.2 / 10

The Kobelco SK350 is widely regarded as one of the best large-class excavators in the world, especially for operators who prioritize fuel savings, comfort, and long-term value. It's a favorite among rental companies, quarry operators, and mining contractors worldwide.

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