Used Yanmar 55 Excavator

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The Yanmar ViO55 is one of the most popular 5-ton (5.5-ton) class mini excavators in the Yanmar lineup. It is widely used in construction, landscaping, utility work, and urban projects due to its compact size, zero tail swing design, and Yanmar's legendary reliability.

📋 1. GENERAL OVERVIEW

Parameter	Details
Model	Yanmar ViO55 (ViO55-6 / ViO55-6A etc.)
Class	5-ton (Mini Excavator)
Manufacturer	Yanmar Co., Ltd. (Japan) 🇯🇵
Production	Ongoing (updated over generations)
Zero Tail Swing (ZTS)	✅ Yes
Rubber Track Option	✅ Available
Blade Dozer Option	✅ Available

& 2. ENGINE SPECIFICATIONS

Spec	Details
Engine Model	Yanmar 3TNV88A-SNN (Diesel)
Type	3-cylinder, water-cooled, direct injection
Displacement	2.189 L
Power Output	38.6 HP (28.8 kW) @ 2,200 rpm
Emissions	Tier 4 Final / Stage V (EPA compliant)
Fuel Tank Capacity	~90 L (23.8 gal)
Cooling System	Water-cooled with radiator

🔑 The 3TNV88 engine is one of Yanmar's most trusted engines — known for fuel efficiency, low noise, and durability.

📐 3. DIMENSIONS & WEIGHT

Spec	Metric	Imperial
Operating Weight	~5,300 – 5,500 kg	~11,684 – 12,125 lbs
Transport Length	~5,740 mm	~18.83 ft
Transport Width	~1,980 mm	~6.50 ft
Transport Height	~2,580 mm	~8.46 ft
Ground Clearance	~350 mm	~13.8 in
Track Width	~1,800 mm (adjustable)	~5.91 ft

🏗️ 4. PERFORMANCE / WORKING RANGE

Spec	Details
Max Digging Depth	~3,650 – 3,900 mm (12.0 – 12.8 ft)
Max Reach (Ground Level)	~5,700 – 6,000 mm (18.7 – 19.7 ft)
Max Digging Height	~5,800 mm (19.0 ft)
Max Dumping Height	~4,100 mm (13.5 ft)
Bucket Capacity	0.10 – 0.20 m³ (0.13 – 0.26 yd³)
Boom Swing Speed	~10 rpm
Travel Speed	~4.4 km/h (2.7 mph)
Hydraulic Flow	~76 L/min (20.1 gpm)
Max Breakout Force (Bucket)	~35 kN (7,868 lbf)
Max Breakout Force (Arm)	~25 kN (5,620 lbf)

🔧 5. HYDRAULIC SYSTEM

Feature	Details
System Type	Load-Sensing (LS) Hydraulic System
Pump Type	Variable Displacement Axial Piston Pump
Auxiliary Hydraulic Flow	~44 L/min (11.6 gpm) — for attachments
Auxiliary Pressure	~21 MPa (3,045 psi)
Hydraulic Lines	2 main + 1 aux (3rd function available on some models)

✅ The LS hydraulic system ensures smooth operation and fuel efficiency by matching oil flow to demand.

🪑 6. OPERATOR CAB & COMFORT

Feature	Details
ROPS/FOPS	✅ Certified (Rollover & Falling Object Protection)
Air Conditioning	✅ Standard
Heating	✅ Available
Suspension Seat	✅ Fully adjustable
Joystick Control	✅ Proportional (left/right)
LCD Monitor	✅ Digital display (engine info, hours, diagnostics)
Sound Level (Inside Cab)	~72 dB(A) — very quiet for its class
Visibility	Excellent due to ZTS design and large glass area

🛤️ 7. UNDERCARRIAGE

Option	Details
Steel Tracks	Standard — 400mm width (adjustable 300-500mm)
Rubber Tracks	Optional — ideal for urban/pavement work (non-marking)
Track Adjustment	Manual or hydraulic (model dependent)
Blade/Dozer	Optional — for grading & leveling

🔌 8. ATTACHMENT COMPATIBILITY (Quick Coupler)

The ViO55 features a quick coupler system allowing fast switching of attachments:

Attachment	Use
🪣 Standard Bucket (100–200mm)	General digging
🔨 Hydraulic Breaker (Hammer)	Demolition / rock breaking
🪛 Auger / Drill	Post hole, piling
🪒 Grading Bucket	Leveling & grading
🪣 Thumb (Grab Bucket)	Log/material handling
🔧 Ripper (Single Shank)	Hard ground breaking
🧹 Sweeper / Brush Cutter	Cleaning & land clearing
🔩 Pallet Forks	Material handling

🆚 9. COMPARISON WITH COMPETITORS

Feature	Yanmar ViO55	Cat 305.5	Komatsu PC55	Kubota KX057
Weight	~5,500 kg	~5,500 kg	~5,300 kg	~5,500 kg
HP	38.6 HP	45 HP	47 HP	47 HP
Tail Swing	✅ ZTS	✅ ZTS	✅ ZTS	✅ ZTS
Emissions	Tier 4F / Stage V	Tier 4F	Stage V	Tier 4F
Fuel Efficiency	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐
Resale Value	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐
Service Network	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐

🏆 Yanmar's advantage: Best-in-class fuel economy, legendary engine reliability, and the lowest cost of ownership in its class.

💰 10. APPROXIMATE PRICING (2024)

Configuration	Price (USD)
ViO55-6 (Basic, steel tracks)	~$55,000 – $65,000
ViO55-6A (w/ A/C, rubber tracks)	~$70,000 – $80,000
ViO55-6 w/ Blade	~$65,000 – $75,000
Used (2018–2021)	~$35,000 – $50,000

Prices vary by region, dealer, and configuration.

✅ 11. KEY STRENGTHS (Pros)

✅ Pros	Details
🏆 Reliability	Yanmar engines last 10,000+ hours with proper maintenance
&Fuel Efficiency**	~3–4 L/hr (0.8–1.0 gal/hr) — best in class
🔇 Low Noise	~72 dB(A) in cab — works in residential areas
📐 Zero Tail Swing	Works in tight spaces without hitting obstacles
🔧 Easy Maintenance	Ground-level service points, wide-open engine compartment
🌏 Global Support	Yanmar has dealers in 100+ countries
📈 Resale Value	Holds value extremely well

⚠️ 12. LIMITATIONS (Cons)

⚠️ Cons	Details
💪 Less Powerful	38.6 HP vs competitors at 45–47 HP
📦 Smaller Bucket	Max 0.2 m³ vs 0.25 m³ on some rivals
🔨 Not for Heavy Demolition	Better suited for utility/landscaping than heavy demolition

🎯 13. IDEAL APPLICATIONS

Application	Suitability
🏡 Residential construction	⭐⭐⭐⭐⭐
🌳 Landscaping & gardening	⭐⭐⭐⭐⭐
🔌 Utility trench work	⭐⭐⭐⭐⭐
🏙️ Urban/indoor work (narrow spaces)	⭐⭐⭐⭐⭐
🏗️ Light commercial construction	⭐⭐⭐⭐
🪨 Light demolition (w/ breaker)	⭐⭐⭐⭐
🛤️ Road/pavement work (rubber tracks)	⭐⭐⭐⭐⭐
⛏️ Heavy mining/quarrying	⭐⭐ (Not recommended)

📜 14. MAINTENANCE SCHEDULE (Summary)

Interval	Task
Every 250 hrs / 3 months	Engine oil & filter change
Every 500 hrs / 6 months	Hydraulic oil filter, fuel filter
Every 1,000 hrs / 12 months	Full hydraulic oil change, coolant check
Every 2,000 hrs	Final drive oil, swing motor oil
Every 4,000–5,000 hrs	Valve clearance adjustment

🏅 15. SUMMARY / VERDICT

Rating	Score
Reliability	⭐⭐⭐⭐⭐ (5/5)
Fuel Economy	⭐⭐⭐⭐⭐ (5/5)
Comfort	⭐⭐⭐⭐ (4/5)
Power	⭐⭐⭐⭐ (4/5)
Versatility	⭐⭐⭐⭐⭐ (5/5)
Value for Money	⭐⭐⭐⭐⭐ (5/5)

🏆 The Yanmar ViO55 is arguably the BEST 5-ton mini excavator in the world for utility, landscaping, and urban work. It may not be the most powerful, but it is the most reliable, fuel-efficient, and cost-effective — which is why it's the #1 choice for rental companies and contractors worldwide.

Would you like me to compare it with a specific competitor, or go deeper into any specific area (attachments, financing, etc.)? 🚜