Used Komatsu 50Excavator

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The Komatsu 50-series refers to the 5-ton (5,000 kg) class mini/compact excavators, one of the most popular size categories in the global construction market. The main models include:

Model	Type	Operating Weight
PC50UU-2	Zero Tail Swing	~5,100 kg
PC50MR-2	Mini Radius	~5,200 kg
PC55MR-2	Mini Radius	~5,500 kg
PC56-7	Conventional	~5,600 kg
PC58UU-2	Zero Tail Swing	~5,800 kg
PC59MR-3	Mini Radius	~5,900 kg

📐 1. General Specifications (Typical PC50UU-2)

Parameter	Specification
Operating Weight	5,070 – 5,200 kg
Engine	Komatsu SAA4D95LE-5 / SAA4D95E-5
Engine Power	36.7 kW (49.2 HP) @ 2,200 rpm
Fuel Tank Capacity	80 L
Hydraulic Tank	42 L
Max Digging Depth	~3,400 – 3,800 mm
Max Digging Reach	~5,800 – 6,200 mm
Max Dumping Height	~4,200 – 4,600 mm
Bucket Capacity	0.10 – 0.20 m³
Track Width	800 – 1,100 mm (rubber/steel)
Blade Width	1,670 mm
Travel Speed	2.5 – 4.7 km/h
Ground Pressure	~30 – 34 kPa

🔧 2. Engine — Komatsu SAA4D95LE-5

Feature	Detail
Type	4-cylinder, water-cooled, turbocharged diesel
Displacement	2.494 L
Emission Standard	Tier 4 Final / Stage V (EU)
Power Output	36.7 kW (49.2 HP)
Features	Common rail fuel injection, DPF + SCR (aftertreatment system)
Fuel Efficiency	Excellent — approx. 5–7 L/hr under normal load

✅ The engine is compact, fuel-efficient, and low-emission, meeting the strictest global environmental regulations.

🏗️ 3. Key Features & Highlights

🔹 A. Zero Tail Swing (UU Models)

No rear overhang — ideal for tight urban spaces, narrow alleys, pipelines, and indoor work
Can work close to walls and buildings without risk of collision

🔹 B. Mini Radius (MR Models)

Short rear overhang with excellent maneuverability
Ideal for landscaping, utility work, and confined sites
Counterweight is positioned to reduce tail swing

🔹 C. Conventional Tail (PC56-7)

Maximum stability at full reach
Best for general digging, loading trucks, and heavy-duty tasks

🛠️ 4. Hydraulic System

Feature	Specification
System Type	Open-center load-sensing hydraulic system
Pump Flow	2 × 33.3 L/min (twin gear pump)
Working Pressure	21 MPa (3,046 psi)
Auxiliary Flow	Available (for attachments like hammers, augers, grapples)
Hydraulic Quick Coupler	Optional (pin-grabber or auto-coupler)

🔩 Supports a wide range of attachments: hydraulic breaker, auger, ripper, grapple, thumb, pallet fork, etc.

🪑 5. Operator Comfort & Cabin

Feature	Detail
ROPS/FOPS Certified	✅ Roll-Over & Falling Object Protection
Air-Conditioned Cabin	Standard on most models
Suspension Seat	Adjustable, with armrests
Joystick Control	Smooth, precise operation
LCD Monitor	Engine info, maintenance alerts, hour meter
Noise Level	~72 dB(A) — relatively quiet
Heater	Standard for cold-weather operation
Wiper & Washer	Front windshield wiper

🌎 6. Applications

Industry	Use Cases
🏗️ Construction	Foundation excavation, trench digging, backfilling
🏡 Residential	Swimming pools, septic tanks, landscaping, driveways
🔌 Utilities	Pipe laying, cable trenching, manhole work
🌲 Agriculture	Drainage ditches, fence post holes, land clearing
🏭 Demolition	Small demolition with hydraulic breaker
🌿 Landscaping	Tree planting, grading, garden work
🛣️ Road Work	Roadside ditches, curb work

📊 7. Advantages of Komatsu PC50 Series

✅ Advantage	📝 Explanation
🏆 Reliability	Komatsu is world-renowned for durability — built to last
&Fuel Efficient**	SAA4D95LE engine saves fuel costs significantly
📏 Compact Size	Fits through standard gates, narrow passages
🔄 Versatile	Quick coupler system = easy attachment change
🛡️ Low Maintenance	Easy access to filters, long service intervals (500 hr)
💰 High Resale Value	Komatsu holds value better than most competitors
🌍 Global Parts Network	Easy to find parts worldwide

🆚 8. Competition Comparison

Feature	Komatsu PC50UU-2	Cat 305.5E2	Kubota KX057-4	JCB 56C-1
Power	49.2 HP	51.5 HP	48.1 HP	55.6 HP
Weight	5,100 kg	5,490 kg	5,500 kg	5,650 kg
Dig Depth	3,480 mm	3,690 mm	3,380 mm	3,850 mm
Tail Swing	Zero	Conventional	Zero	Conventional
Emission	Tier 4 Final	Tier 4 Final	Stage V	Stage V
Price (USD)	~$45K–$55K	~$50K–$60K	~$40K–$50K	~$48K–$58K

💡 Komatsu wins on fuel efficiency, build quality, and resale value.

🔧 9. Maintenance Intervals

Item	Interval
Engine Oil Change	Every 500 hours
Hydraulic Oil Filter	Every 500 hours
Fuel Filter	Every 500 hours
Track Adjustment	Every 1,000 hours (check)
Final Drive Oil	Every 2,000 hours
Coolant	Every 2,000 hours / 2 years

💰 10. Approximate Pricing (2024)

Model	New Price (USD)	Used Price (USD)
PC50UU-2	$45,000 – $55,000	$25,000 – $40,000
PC50MR-2	$48,000 – $58,000	$28,000 – $42,000
PC56-7	$50,000 – $60,000	$30,000 – $45,000
PC58UU-2	$55,000 – $65,000	$35,000 – $50,000

(Prices vary by region, configuration, and dealer)

🏁 Summary

Category	Rating
⭐ Overall	⭐⭐⭐⭐⭐ (4.8/5)
💪 Power	⭐⭐⭐⭐ (Good for 5-ton class)
& Economy	⭐⭐⭐⭐⭐ (Excellent)
🛡️ Durability	⭐⭐⭐⭐⭐ (Komatsu quality)
💺 Comfort	⭐⭐⭐⭐ (Very good)
💰 Value	⭐⭐⭐⭐⭐ (Great resale + low running cost)

📌 The Komatsu PC50 series is one of the BEST 5-ton mini excavators in the world — perfect for contractors, landscapers, utility companies, and rental fleets who need a reliable, fuel-efficient, and compact machine.

Would you like more details on any specific model, attachments, or comparison with other brands? 🚜