Used Komatsu 350-7Excavator

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📋 Overview

Parameter	Details
Manufacturer	Komatsu Ltd. (Japan) 🇯🇵
Model	PC350-7 (also PC350LC-7 / PC350NLC-7)
Class	Large Hydraulic Excavator (~35-ton class)
Production Years	~2008 – 2015
Predecessor	PC350-6
Successor	PC350-8
Primary Use	Mining, quarrying, heavy construction, demolition, infrastructure

The PC350-7 is one of Komatsu's most popular mid-to-large hydraulic excavators, designed for high-production demanding jobs with excellent fuel efficiency and operator comfort.

⚡ Engine & Powertrain

Specification	Details
Engine Model	Komatsu SAA6D114E-5 (Tier 3/Stage IIIA) or SAA6D114E-3 (Tier 4 Final)
Engine Type	6-cylinder, Turbocharged, Aftercooled Diesel
Displacement	11.66 Liters
Rated Power	194 kW (260 HP) @ 2,000 rpm
Max Torque	~1,080 N·m @ 1,400 rpm
Fuel Tank Capacity	~600 Liters (158 US gal)
Emission Standard	EPA Tier 3 / EU Stage IIIA (earlier); Tier 4 Final (later)
Cooling System	Pressurized water-cooled with fan

✅ The SAA6D114E-5 engine is known for excellent fuel efficiency and reliability, with a ~5-10% fuel savings compared to the PC350-6.

📐 Dimensions & Weight

Parameter	Metric	Imperial
Operating Weight	34,900 – 35,400 kg	76,940 – 78,040 lbs
Transport Length	10,970 mm	36.0 ft
Transport Width	3,190 mm	10.5 ft
Transport Height	3,270 mm	10.7 ft
Ground Clearance	460 mm	18.1 in
Track Width	600 mm triple-grouser shoes	23.6 in
Track Length on Ground	4,050 mm	13.3 ft
Tail Swing Radius	3,090 mm	10.1 ft

🔧 Working Performance (Hydraulic)

Parameter	Value
Max Digging Depth	7,130 mm (23.4 ft)
Max Reach (Ground Level)	10,260 mm (33.7 ft)
Max Dumping Height	7,230 mm (23.7 ft)
Max Digging Radius	10,040 mm (33.0 ft)
Max Vertical Wall Digging	6,320 mm (20.7 ft)
Bucket Capacity (SAE)	1.4 – 1.9 m³ (1.8 – 2.5 yd³)
Bucket Capacity (ISO)	1.5 – 1.7 m³
Max Breakout Force (Boom)	~160 kN (36,000 lbf)
Max Breakout Force (Arm)	~118 kN (26,500 lbf)
Max Breakout Force (Bucket)	~180 kN (40,500 lbf)
Hydraulic System Pressure	34.3 MPa (4,975 psi)
Hydraulic Flow	2 × 270 L/min + 1 × 60 L/min (pilot)
Swing Speed	8.2 rpm
Travel Speed	3.4 / 5.4 km/h (Low / High)

🏗️ Key Features & Technology

🖥️ 1. KOMTRAX® Telematics

Remote machine monitoring via satellite
Track fuel consumption, operating hours, location, fault codes
Enables preventive maintenance and fleet management

🪑 2. Advanced Operator Environment (KOMCAB)

Feature	Description
ROPS/FOPS Cab	Roll-Over & Falling-Object Protective Structure
Air Suspension Seat	Fully adjustable with armrests
LCD Monitor	Multi-function display (engine info, camera, GPS)
Air Conditioning	Auto climate control
Noise Level	~70 dB(A) — relatively quiet for its class
Wide-angle View	Large glass area for excellent visibility

& 3. Hydraulic System

Load-Sensing (LS) Hydraulic System — matches pump output to demand → saves fuel
Power Mode System (PMS) — 3 modes:
- 🟢 L (Light) — fuel saving mode
- 🟡 S (Standard) — balanced performance
- 🔴 H (Heavy) — maximum power for tough conditions

🔧 4. Maintenance-Friendly Design

Feature	Benefit
Side-opening doors	Easy access to engine & filters
Ground-level fuel fill	No ladder needed
Centralized grease points	Quick daily lubrication
Extended service intervals	500-hr or 1,000-hr oil change (vs 250-hr older models)
Dry-type air filter	Longer life, no water issues

🛡️ 5. Undercarriage

Heavy-duty X-frame undercarriage for durability
Triple-grouser track shoes (600mm wide) for excellent traction
Reinforced track rollers, idlers, and sprockets for mining use

📊 Fuel Efficiency

Condition	Approx. Fuel Consumption
Idle	~8 L/hr (2.1 gal/hr)
Light Work	~18–22 L/hr (4.8–5.8 gal/hr)
Heavy Work	~28–35 L/hr (7.4–9.2 gal/hr)
Average (mixed)	~25 L/hr (6.6 gal/hr)

🏆 The PC350-7 achieves ~10% better fuel economy than the PC350-6 thanks to the SAA6D114E engine + improved hydraulics.

🆚 Comparison: PC350-6 vs PC350-7 vs PC350-8

Feature	PC350-6	PC350-7 ✅	PC350-8
Years	2002–2008	2008–2015	2016–Present
Engine	SAA6D112E	SAA6D114E-5	SAA6D125E-5
Power	190 kW (255 HP)	194 kW (260 HP)	206 kW (276 HP)
Weight	35,100 kg	34,900 kg	35,800 kg
Fuel Save	Baseline	~10% vs PC350-6	~15% vs PC350-7
Emission	Tier 2	Tier 3/Tier 4	Tier 4 Final
KOMTRAX	Optional	Standard	Standard

💰 Approximate Pricing (Used Market, 2024)

Condition	Hours	Price Range (USD)
Good Condition	5,000–8,000 hrs	$85,000 – $120,000
Average Condition	8,000–12,000 hrs	$65,000 – $85,000
High Hours / Rough	12,000–18,000 hrs	$45,000 – $65,000

(Prices vary by region, configuration, and market conditions)

✅ Pros & ❌ Cons

✅ Advantages	❌ Disadvantages
Excellent fuel efficiency	Heavier than some competitors (Cat 345)
Highly reliable SAA6D114E engine	Older model (2008–2015) — parts availability declining
Superior operator comfort	Higher initial purchase price than PC350-6
Strong breakout forces	Not as advanced as PC350-8 (no GPS auto-grade)
Wide parts availability globally	Higher maintenance cost vs smaller machines
Excellent resale value	Emission standards may limit use in some regions

🌍 Common Applications

Industry	Usage
🪨 Mining & Quarrying	Rock excavation, loading haul trucks
🏗️ Heavy Construction	Foundation work, trenching, pipe laying
🏚️ Demolition	Building tear-down with hydraulic breaker/crusher
🛣️ Infrastructure	Road building, bridge work
🌳 Land Clearing	Forestry, brush removal
🏭 Material Handling	Scrap yards, recycling

🔧 Popular Attachments

Attachment	Application
Hydraulic Breaker (Hammer)	Rock breaking, demolition
Hydraulic Crusher (Jaw/Concrete)	Concrete/rebar crushing
Thumb (Grapple)	Log handling, scrap picking
Ripper (Single Shank)	Hard ground ripping
Quick Coupler	Fast attachment changeover
Hydraulic Shear	Steel cutting, demolition
Compaction Wheel	Trench backfill compaction

📌 Summary

Rating	Score
⚡ Power	⭐⭐⭐⭐⭐ (260 HP)
⛽ Fuel Efficiency	⭐⭐⭐⭐⭐ (Best in class)
🪑 Operator Comfort	⭐⭐⭐⭐⭐
🔧 Reliability	⭐⭐⭐⭐⭐
💰 Value for Money	⭐⭐⭐⭐½
📈 Resale Value	⭐⭐⭐⭐⭐

🏆 The Komatsu PC350-7 is widely regarded as one of the BEST 35-ton excavators ever made — combining raw power, fuel efficiency, comfort, and reliability. It remains a workhorse on job sites worldwide even years after production ended.

Would you like more details on any specific aspect — such as maintenance schedule, hydraulic schematics, or comparison with Cat 345/349? 🚜