Used Komatsu 380-3Loader

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📌 1. OVERVIEW

The Komatsu WA380-3 is a mid-size wheel loader and the 3rd generation of Komatsu's popular 380 series (indicated by the "-3" suffix). It succeeded the WA380-1 and WA380-2 models, featuring significant improvements in fuel efficiency, operator comfort, productivity, and emissions compliance (meeting Tier 4 Final / Stage V standards).

It sits between the WA320-3 (smaller) and WA420-3 / WA470-3 (larger) in Komatsu's lineup, making it ideal for general construction, mining, quarrying, and large-scale material handling.

📌 2. KEY SPECIFICATIONS

Parameter	Specification
Operating Weight	~16,800 – 17,500 kg (37,040 – 38,580 lbs)
Rated Bucket Capacity	2.2 m³ (2.9 cu yd) (standard)
Maximum Bucket Capacity	3.0 – 3.8 m³ (4.0 – 5.0 cu yd) (optional)
Engine Model	Komatsu SAA6D125E-5 (6-cylinder turbodiesel)
Engine Power	~195 – 210 hp (145 – 157 kW) @ 2,000 rpm
Max. Breakout Force	~115 – 120 kN (25,850 – 26,970 lbf)
Lift Capacity (Full Reach)	~7,500 – 8,500 kg (16,535 – 18,740 lbs)
Dump Height (Hinge Pin)	~3,200 – 3,400 mm (10.5 – 11.2 ft)
Dump Reach	~1,100 – 1,200 mm (3.6 – 3.9 ft)
Ground Clearance	~480 mm (18.9 in)
Tire Size	23.5-25 (18PR / 20PR optional)
Fuel Tank Capacity	~350 liters (92.5 US gal)
Transmission	Powershift (fully automatic)
Travel Speed (Fwd/Rev)	~11.5 / ~13.5 km/h (7.1 / 8.4 mph)
Gradeability	~30% (60% with rimpull assist)
Turning Radius (Outside)	~6,800 – 7,200 mm

📌 3. ENGINE & EMISSIONS

Feature	Detail
Engine	Komatsu SAA6D125E-5
Displacement	7.15 liters (436 cu in)
Emissions Standard	EPA Tier 4 Final / EU Stage V
Aftertreatment	DPF (Diesel Particulate Filter) + SCR (Selective Catalytic Reduction) with DEF (Diesel Exhaust Fluid) — NO DEF regeneration required in normal operation
Turbocharger	Water-cooled turbo with intercooler

✅ The WA380-3 achieves excellent fuel efficiency thanks to its electronic engine management and load-sensing hydraulic system.

📌 4. HYDRAULIC SYSTEM

Feature	Detail
Pump Type	Load-Sensing Variable Displacement Piston Pump
System Pressure	~34.3 MPa (4,975 psi)
Flow Rate	~330 L/min (87.2 US gpm)
Work Modes	H / L / ECO (High / Low / Economy)
Z-Bar Linkage	Optimized linkage design for excellent bucket fill, lift, and dump performance
Parallel Lift	Maintains bucket angle throughout lift cycle

📌 5. TRANSMISSION & AXLES

Feature	Detail
Transmission	Full Powershift — 4 Forward / 4 Reverse gears
Shift Type	Electronic, push-button or lever-operated
Axles	Oscillating axles with planetary final drives
Differential Lock	Automatic limited-slip differential
Brakes	Wet disc brakes (sealed, oil-cooled)
Steering	Articulated frame steering — oscillating joint with ~40° articulation angle

📌 6. CAB & OPERATOR COMFORT

The WA380-3 features a significantly upgraded cab compared to previous generations:

Feature	Detail
Cab Type	ROPS/FOPS certified (Rollover & Falling Object Protection)
Noise Level	~73 dB(A) (very quiet for its class)
Air Conditioning	Full automatic climate control
Seat	Air-suspended, heated, high-back seat with armrests
Display	7-inch full-color LCD monitor with multi-function display
Controls	Joystick-controlled (single-lever for loader, separate for transmission)
Visibility	Large glass area, excellent all-around visibility
Sound System	AM/FM/USB/Bluetooth radio
Storage	Cup holders, document tray, phone holder
Vibration	Low vibration floor & seat mounting

📌 7. SMART TECHNOLOGY & ELECTRONICS

Technology	Description
🖥️ Komatsu Smart Loader System	Real-time productivity monitoring & guidance
📡 Komtrax®	GPS-based remote machine monitoring, diagnostics & fleet management
🟢 ECO Mode	Automatically reduces engine RPM when load is light — saves up to 10-15% fuel
🔄 Auto Idle Shutdown	Engine auto-shuts off after preset idle time (saves fuel & reduces emissions)
📐 2D/3D Machine Guidance Ready	Compatible with GPS/GNSS grading systems (Topcon, Trimble, Leica, etc.)
🤖 Auto-Carry / Auto-Return	Optional automatic bucket control for repetitive loading
⚠️ Rear Camera / 360° Camera	Optional for improved safety
🔧 Remote Diagnostics	Dealer can diagnose issues remotely via Komtrax

📌 8. UNDERCARRIAGE & TIRES

Feature	Detail
Tire Options	23.5-25 (18PR standard) / 23.5-25 (20PR heavy-duty)
Rim Protection	Standard
Undercarriage Guard	Optional steel guard for abrasive conditions
Tire Inflation System (CTIS)	Optional Central Tire Inflation System
Blade Option	Available with 6-way or straight blade
Forks	Pallet forks available as attachment

📌 9. APPLICATIONS

Industry	Use Case
🏗️ General Construction	Loading trucks, stockpiling, grading
⛏️ Mining (Small-Medium)	Load & haul, stockpile management
🪨 Quarrying	Rock & aggregate loading
🛣️ Road Building	Asphalt & base material handling
🌾 Agriculture (Large Scale)	Grain, silage, biomass handling
🏭 Waste & Recycling	Scrap, wood chips, demolition debris
🌲 Forestry	Log loading (with appropriate bucket)

📌 10. COMPARISON: WA380-3 vs Previous Generations

Feature	WA380-1	WA380-2	WA380-3
Engine Power	~185 hp	~195 hp	~210 hp
Fuel Efficiency	Baseline	+5%	+10-15% vs WA380-1
Cab Comfort	Basic	Improved	Premium (air-suspend seat, LCD)
Emissions	Tier 2/3	Tier 4 Interim	Tier 4 Final / Stage V (DPF+SCR)
Technology	Basic	Komtrax	Smart Loader + Auto-Guidance Ready
Service Intervals	500h	500h	1,000h (extended)
Operating Weight	~16,300 kg	~16,600 kg	~17,000 kg

📌 11. SERVICE & MAINTENANCE HIGHLIGHTS

Item	Interval
Engine Oil Change	500 hours (or 1,000h with Komatsu long-life oil)
Hydraulic Oil Filter	500 hours
Fuel Filter / Water Separator	500 hours
DEF (AdBlue) Refill	~Every 1,000 – 2,000 hours
Grease Points	Centralized auto-lube system available
Ground-Level Service	Most daily checks accessible from ground level
Side-Opening Hood	Easy engine access for maintenance

📌 12. COMPETITORS

Model	Manufacturer	Operating Weight	Bucket Capacity
WA380-3	Komatsu	~17,000 kg	2.2 m³
938M	Caterpillar	~17,800 kg	2.8 m³
L580	Volvo	~16,900 kg	2.5 m³
621R	John Deere	~16,800 kg	2.5 m³
ZL50G-II	XCMG	~17,000 kg	3.0 m³
956K	LiuGong	~17,200 kg	3.0 m³

✅ SUMMARY — WHY CHOOSE THE WA380-3?

✅ Strength	Explanation
🔋 Fuel Efficient	ECO mode + load-sensing hydraulics = lower operating cost
🧠 Smart Technology	Komtrax, Smart Loader, auto-guidance ready
💺 Best-in-Class Cab	Comfort = productivity = less operator fatigue
🔧 Low Maintenance	1,000h service intervals, ground-level access
🌍 Emissions Compliant	Tier 4 Final / Stage V — works in restricted zones
💪 Productive	High breakout force + fast cycle times
🌐 Global Support	Komatsu's worldwide dealer & parts network

📊 The Komatsu WA380-3 is one of the most productive, fuel-efficient, and technologically advanced mid-size wheel loaders in its class — widely used across construction, mining, and quarry operations worldwide.

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