Used Komatsu 450-8Excavator

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🏗️ 1. GENERAL OVERVIEW

Item	Details
Model	PC450-8 (also written as PC450LC-8 / PC450-8MO)
Manufacturer	Komatsu Ltd. (Japan)
Series	-8 Generation (successor to the PC450-7)
Class	Large Hydraulic Excavator (~45-ton class)
Primary Use	Mining, large-scale earthmoving, quarrying, heavy construction
Production	Launched around 2015–2016

The PC450-8 is one of Komatsu's flagship large excavators, designed for maximum productivity and fuel efficiency in demanding applications.

⚙️ 2. ENGINE SPECIFICATIONS

Parameter	Specification
Engine Model	Komatsu SAA6D125E-5
Type	6-cylinder, in-line, turbocharged & aftercooled diesel
Displacement	12.5 liters (12,500 cc)
Rated Power	243 kW (326 hp) @ 1,800 rpm
Max Torque	~1,373 N·m (1,013 lb-ft) @ 1,400 rpm
Emission Standard	EPA Tier 4 Final / EU Stage V (with DPF + SCR)
Fuel Tank Capacity	~750 L (198 US gal)
AdBlue/DEF Tank	~40 L (for SCR system)

✅ The SAA6D125E-5 uses Selective Catalytic Reduction (SCR) + Diesel Particulate Filter (DPF) — no EGR, which improves reliability.

🛢️ 3. HYDRAULIC SYSTEM

Parameter	Specification
Pump Type	2 × Variable Displacement Axial Piston Pumps
Total Flow	2 × 267 L/min = ~534 L/min (141 US gpm)
System Pressure	35 MPa (5,076 psi)
Max Digging Force	~196 kN (44,060 lbf)
Max Breakout Force	~153 kN (34,400 lbf)
Swing System	Hydraulic motor with auto-deceleration
Travel Motors	2 × Variable displacement axial piston motors

📐 4. DIMENSIONS & WEIGHT

Parameter	Specification
Operating Weight	44,900 – 45,400 kg (99,000 – 100,100 lbs)
Transport Length	~11,390 mm (37.4 ft)
Transport Width	~3,190 mm (10.5 ft)
Transport Height	~3,340 mm (11.0 ft)
Ground Clearance	~490 mm (19.3 in)
Track Width	600 mm (23.6 in) shoes
Track Gauge	3,190 mm (10.5 ft)
Dozer Blade Width	~3,660 mm (12.0 ft)

🪣 5. WORKING RANGE & BUCKET CAPACITY

Parameter	Specification
Standard Bucket	1.8 – 2.2 m³ (2.4 – 2.9 yd³)
Heavy-Duty Bucket	Up to 2.4 m³ (3.1 yd³)
Max Digging Depth	~7,250 mm (23.8 ft)
Max Digging Reach	~10,800 mm (35.4 ft)
Max Dumping Height	~7,620 mm (25.0 ft)
Max Vertical Wall Dig	~6,530 mm (21.4 ft)
Swing Speed	~8.5 rpm

🖥️ 6. CAB & OPERATOR COMFORT

Feature	Details
Cab Type	ROPS/FOPS certified, pressurized & filtered
Display	10.4-inch full-color LCD monitor (Komatsu Smart Monitor)
Climate Control	Full air conditioning with auto mode
Seat	Air-suspension seat with heating, armrests
Noise Level	~68 dB(A) inside cab
Visibility	Large glass area, rear-view camera, side cameras
Controls	Electronic joystick with auto-idle, multifunction levers

🤖 7. SMART TECHNOLOGY & FEATURES

Technology	Description
KOMTRAX	Remote machine monitoring, location tracking, diagnostic data via satellite
Komatsu Smart Construction	3D machine control ready (GPS/GNSS compatible)
Auto-Idle	Engine automatically reduces RPM when not working → saves 5–10% fuel
Eco Mode	Optimizes engine & hydraulic output for lower fuel consumption
Power Mode	Maximum performance when needed
Komatsu Auto-Shift	Automatic transmission shifting for smooth operation
Auto-Lube System	Centralized automatic lubrication
Walk-Around Inspection	Guided daily check routine on the monitor

🔧 8. MAINTENANCE ACCESSIBILITY

Feature	Benefit
Ground-level access	Fuel fill, DEF fill, engine oil check — all at ground level
Wide-open engine hood	Easy access to filters, belts, radiators
Extended service intervals	Engine oil: 1,000 hrs / Hydraulic oil: 4,000 hrs
Quick-couplers ready	Attachment change in under 2 minutes

📊 9. PERFORMANCE COMPARISON: PC450-8 vs PC450-7

Parameter	PC450-7	PC450-8	Improvement
Power	240 kW (322 hp)	243 kW (326 hp)	+1.3%
Fuel Efficiency	Baseline	~5–10% better	✅ Significant
Weight	~45,200 kg	~44,900 kg	Slightly lighter
Bucket Capacity	1.8–2.2 m³	1.8–2.4 m³	Slightly larger option
Emissions	Tier 4i	Tier 4 Final	Cleaner
Technology	Basic	Smart Construction ready	✅ Major upgrade

💰 10. APPROXIMATE PRICING (2024–2025)

Condition	Price Range (USD)
New Machine	$550,000 – $750,000+ (depends on configuration)
Used (2016–2019, ~5,000 hrs)	$280,000 – $400,000
Used (2020+, ~3,000 hrs)	$400,000 – $550,000

Prices vary by region, configuration (bucket, quick coupler, GPS, etc.), and dealer.

🏭 11. TYPICAL APPLICATIONS

Application	Details
🪨 Mining	Loading haul trucks (80–120 ton class), bench loading
🏗️ Heavy Construction	Large foundation excavation, highway projects
⛰️ Quarrying	Rock breaking, loading
🏚️ Demolition	With hydraulic breaker or shear attachment
🌊 Dredging	With specialized buckets
🌲 Land Clearing	Tree removal, brush cutting

✅ 12. KEY STRENGTHS SUMMARY

Strength	⭐ Rating
Power & Digging Force	⭐⭐⭐⭐⭐
Fuel Efficiency	⭐⭐⭐⭐⭐
Operator Comfort	⭐⭐⭐⭐⭐
Reliability & Durability	⭐⭐⭐⭐⭐
Technology & Connectivity	⭐⭐⭐⭐⭐
Resale Value	⭐⭐⭐⭐⭐

📌 CONCLUSION

The Komatsu PC450-8 is a world-class large excavator that combines raw power (~326 hp), excellent fuel economy, cutting-edge smart technology, and outstanding operator comfort. It is the go-to machine for mining companies and large contractors who demand high productivity, low operating cost, and maximum uptime.

It represents the pinnacle of Komatsu's -8 generation and remains one of the most competitive machines in the 45-ton class against rivals like the CAT 349 / 349 GC, Hitachi ZX470-6, and Volvo EC480E.