Used Sany 155Excavator

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📌 1. GENERAL OVERVIEW

Item	Details
Model	SANY SY155C (also called SY155)
Class	15-ton (Medium-sized) Crawler Excavator
Manufacturer	SANY Group (China) — World's 4th largest construction machinery maker
Application	General construction, earthmoving, road building, municipal works, mining, landscaping
Market Position	Competes with CAT 315, Komatsu PC150, Doosan DX150, XCMG XE155

⚙️ 2. KEY TECHNICAL SPECIFICATIONS

Parameter	Specification
Operating Weight	~15,000 – 15,500 kg (33,069 – 34,172 lbs)
Engine Model	Isuzu AA-6HK1XQA (or SANY engine in some markets)
Engine Power	86 – 100 kW (115 – 134 HP) @ 2,000 rpm
Emission Standard	China III / EU Stage V / EPA Tier 4 Final (market dependent)
Fuel Tank Capacity	~300 L
Hydraulic Tank	~140 L
Engine Oil Capacity	~28 L

🪣 3. WORKING PERFORMANCE

Parameter	Value
Bucket Capacity (Standard)	0.5 – 0.65 m³ (0.65 – 0.85 yd³)
Max Digging Depth	~5,800 – 6,200 mm (19 – 20.3 ft)
Max Digging Reach	~8,500 – 9,200 mm (27.9 – 30.2 ft)
Max Digging Height	~9,500 – 9,800 mm (31.2 – 32.2 ft)
Max Dumping Height	~6,800 – 7,000 mm (22.3 – 23 ft)
Max Digging Force (Boom)	~105 – 110 kN (23,600 – 24,700 lbf)
Max Digging Force (Arm)	~78 – 82 kN (17,500 – 18,400 lbf)
Swing Speed	~10 – 12 rpm
Travel Speed	~4.8 – 5.5 km/h (3 – 3.4 mph)
Ground Pressure	~43 – 47 kPa
Max Climbing Ability	~35° (70%)
Max Trench Depth	~5,300 – 5,500 mm

🏗️ 4. HYDRAULIC SYSTEM

Feature	Details
System Type	Positive Flow Control (PFC) Hydraulic System
Main Pump	Variable displacement axial piston pump (2 pumps)
System Pressure	~34.3 MPa (4,975 psi)
Flow Rate	~2 × 180 – 200 L/min
Control Mode	Electric proportional control + Joystick
Auxiliary Hydraulics	1 – 2 circuits available (for breaker, grapple, thumb)

✅ The PFC system ensures precise control and energy efficiency — matching engine output to hydraulic demand.

🧠 5. INTELLIGENT & SMART FEATURES (i-SANC System)

SANY's proprietary i-SANC (Intelligent SANY Controller) system includes:

Feature	Benefit
🖥️ LCD Monitor	Real-time monitoring of engine, hydraulics, fuel consumption
🛢️ Auto-Idle System	Engine auto-reduces RPM when not working → saves 5–10% fuel
📊 Fuel Efficiency Optimization	Intelligent match of engine & pump output
🔒 Anti-Theft System	GPS tracking + engine immobilizer
🔧 Fault Diagnosis	Self-diagnostic with error codes on display
📈 Working Hour Meter	Accurate tracking for maintenance scheduling
🎯 One-Key Start	Quick engine start
🌡️ Climate-Controlled Cab	AC + heater as standard

🪑 6. OPERATOR COMFORT & CAB

Feature	Details
Cab Type	ROPS/FOPS certified, spacious cab
Seat	Air-suspension seat with armrest (adjustable)
Noise Level	~68 – 72 dB(A) (relatively quiet for class)
Visibility	Large windows, rear-view camera (optional)
Controls	Ergonomic joysticks, pedal-operated travel
Storage	Cup holders, phone holder, glove box
Lighting	LED working lights (front + rear)
Wiper	Single-speed windshield wiper with washer

🔧 7. UNDERCARRIAGE

Component	Details
Track Shoe Width	600 mm (23.6 in)
Number of Rollers (per side)	5 (upper) + 6 (lower)
Track Pitch	191 mm
Number of Track Shoes	46
Ground Contact Length	~2,800 mm

✅ Heavy-duty undercarriage designed for tough terrain — suitable for mud, rocks, and uneven ground.

🛠️ 8. ATTACHMENT OPTIONS

Attachment	Use Case
🪨 Hydraulic Breaker (Hammer)	Rock breaking, demolition
🫳 Hydraulic Thumb	Pipe handling, log grabbing
🦷 Hydraulic Grapple	Scrap metal, wood handling
🔩 Quick Coupler	Fast attachment change
🕳️ Auger Drill	Piling, post hole drilling
🧹 Bucket (various sizes)	0.2 m³ to 0.8 m³ options
🪣 Tiltrotator	Precise grading, pipe laying

🆚 9. COMPARISON WITH COMPETITORS

Model	Weight	Power	Bucket	Price Range (USD)
SANY SY155C	15.5t	115 HP	0.6 m³	$85,000 – $110,000
CAT 315 GC	15.2t	110 HP	0.57 m³	$110,000 – $130,000
Komatsu PC150-8	14.9t	102 HP	0.55 m³	$105,000 – $125,000
Doosan DX150LC-7	14.8t	107 HP	0.55 m³	$100,000 – $120,000
XCMG XE155DK	15.3t	112 HP	0.58 m³	$80,000 – $100,000
Hyundai R150LC-9A	14.9t	106 HP	0.55 m³	$95,000 – $115,000

✅ SANY's advantage: Best price-to-performance ratio, strong after-sales network, smart technology at a lower cost.

✅ 10. KEY ADVANTAGES (Why Choose SY155C?)

#	Advantage
1	💰 Cost-effective — 15–25% cheaper than Japanese/European brands
2	🧠 Smart technology — i-SANC system, fuel-saving features
3	💪 Reliable engine — Isuzu engine (proven globally)
4	🔧 Easy maintenance — Wide service network, affordable parts
5	🏠 Comfortable cab — Air-suspension seat, low noise
6	🛢️ Fuel efficient — Auto-idle + PFC system saves fuel
7	🌐 Global support — SANY has dealers in 150+ countries
8	📦 Strong resale value in Asian, African, South American markets

⚠️ 11. POTENTIAL CONCERNS

Concern	Details
🔩 Parts availability	Good in Asia/Africa/SA, but may be slower in Europe/NA
📉 Resale value	Lower than CAT/Komatsu in Western markets
🏭 Perceived quality	Still catching up with Japanese brands in some users' perception
🖥️ Software	Occasionally firmware updates needed for i-SANC system

📋 12. SUMMARY

Category	Rating (out of 5)
Power & Performance	⭐⭐⭐⭐
Fuel Efficiency	⭐⭐⭐⭐
Operator Comfort	⭐⭐⭐⭐⭐
Build Quality	⭐⭐⭐⭐
Value for Money	⭐⭐⭐⭐⭐
After-Sales (Asia/Africa)	⭐⭐⭐⭐⭐
After-Sales (Europe/NA)	⭐⭐⭐

🎯 CONCLUSION

The SANY SY155C is an excellent mid-size excavator offering Japanese-level performance at Chinese pricing. With its Isuzu engine, intelligent i-SANC system, and comfortable cab, it's ideal for contractors who want high productivity without the premium price tag of CAT or Komatsu. It's particularly popular in Asia, Africa, the Middle East, South America, and Eastern Europe.

Would you like more details on pricing in a specific country, maintenance schedule, or comparison with a specific competitor? 🚜