Used Sany 135Excavator

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🏢 Overview

Item	Details
Manufacturer	SANY Group (三一重工) — China's #1 construction machinery maker
Model	SY135C / SY135H (varies by market)
Class	Mid-size Crawler Excavator (~13.5 tonne class)
Production	2010s–Present (continuously updated)
Target Use	General construction, earthmoving, road building, municipal works, mining

The SANY SY135 is one of SANY's best-selling mid-size excavators, competing directly with machines like the CAT 313, Komatsu PC130, Hitachi ZX135, and Doosan DX140LC.

🔧 Key Technical Specifications (SY135C)

Parameter	Specification
Operating Weight	13,300 – 13,800 kg
Engine	Isuzu AJ-4HK1X (Tier 4 Final / Stage V)
Engine Power	98 kW (≈ 131 HP) @ 2,000 rpm
Displacement	5.193 L, 4-cylinder, turbocharged, intercooled
Bucket Capacity	0.45 – 0.65 m³ (standard)
Max Digging Depth	5,850 – 6,050 mm
Max Digging Radius	8,550 – 8,800 mm
Max Dumping Height	6,500 – 6,800 mm
Max Digging Force	~90 kN (boom) / ~62 kN (arm)
Travel Speed	2.8 – 5.0 km/h
Ground Pressure	~48 kPa
Fuel Tank	~260 L
Hydraulic System	Load-sensing, dual variable displacement pump
Hydraulic Flow	2 × 170 L/min (main) + 45 L/min (pilot)

🧠 Engine — Isuzu AJ-4HK1X

Feature	Detail
Type	Inline 4-cylinder, turbocharged, intercooled diesel
Displacement	5.193 L
Power	98 kW @ 2,000 rpm
Emission	EPA Tier 4 Final / EU Stage V
Fuel Efficiency	~12–15 L/hr (varies with load)
Features	Common rail injection, DPF + SCR aftertreatment

✅ Why Isuzu? SANY uses Isuzu engines in many of its mid-size models for reliability, fuel efficiency, and low maintenance cost. Some markets offer Cummins B3.9 or Yanmar as alternatives.

🏗️ Hydraulic System & Work Modes

The SY135 features 3 work modes (selectable via cab switch):

Mode	Description
P (Power)	Full power for heavy digging — maximum performance
S (Standard)	Balanced power & fuel efficiency — general use
E (Economy)	Reduced engine speed & pump flow — low fuel consumption for light work

Hydraulic Highlights:

✅ Load-sensing system — pump flow matches demand → saves fuel
✅ Dual variable displacement piston pumps — smooth, precise control
✅ Boom regeneration circuit — faster cycle times
✅ Auto-idle — engine drops to idle when not working → saves fuel

🛡️ Structure & Undercarriage

Component	Detail
Boom	High-strength steel, reinforced stress points
Arm	Box-section, thick wear plates
Bucket	Reinforced with side cutters & teeth (optional thumb)
Track Width	600 mm triple-grouser shoes (adjustable: 500/600/700 mm)
Undercarriage	Heavy-duty X-frame, sealed & greased track rollers
Counterweight	Cast iron, optimized for stability
Swing Mechanism	Planetary final drive, sealed swing motor

🖥️ Cab & Operator Comfort

Feature	Detail
Cab Type	ROPS/FOPS certified, full-enclosed, pressurized
Air Conditioning	Standard (with filter)
Seat	Air-suspension, heated, adjustable armrests
Controls	Joystick with finger-tip buttons (proportional)
Display	LCD monitor — engine info, fuel consumption, fault codes, camera feed
Sound Level	≤ 72 dB(A) — relatively quiet
Visibility	Large glass area, rear-view camera standard
Safety	Seat belt, emergency stop, anti-theft system

📱 Smart Features (SANY Intelligent System)

Feature	Description
SANY IoT / Telematics	GPS tracking, remote diagnostics, working hours monitoring
SANY APP	Phone app to check machine status, location, maintenance alerts
Weight Management System	Prevents overloading — alerts operator
Auto-lubrication	Centralized grease system for pins & bushings
Hydraulic Quick Coupler	Optional — switch attachments in seconds

🔄 Attachments (Quick Coupler Compatible)

Attachment	Use Case
🪨 Hydraulic breaker	Rock demolition
🪵 Hydraulic grapple	Log/scrap handling
🦷 Hydraulic thumb	Pipe, log, scrap gripping
🕳️ Auger drill	Pile driving, fencing
🪣 4-in-1 bucket	Digging, grading, cleaning, dozing
🔨 Hydraulic shear	Demolition, metal cutting
🧹 Tiltrotator	360° rotation of any attachment

📊 Performance Comparison

Spec	SANY SY135C	CAT 313	Komatsu PC130	Doosan DX140LC
Weight (kg)	13,500	13,800	13,100	14,000
Power (kW)	98	100	96	100
Dig Depth (m)	5.9	6.1	5.8	6.0
Bucket (m³)	0.55	0.54	0.50	0.58
Price (approx.)	$65K–$80K	$85K–$95K	$80K–$90K	$75K–$88K

💰 SANY's biggest advantage = Price-to-Performance ratio. Typically 15–25% cheaper than Japanese/European brands with comparable specs.

✅ Advantages

Advantage	Explanation
💰 Cost-effective	15–25% cheaper than CAT/Komatsu
🔧 Easy maintenance	Isuzu engine = widely available parts
📱 Smart/IoT ready	Telematics, remote monitoring standard
⛽ Fuel efficient	Load-sensing + auto-idle + E-mode
🌐 Global service network	SANY has 150+ countries coverage
🔄 Quick coupler	Fast attachment change = more productivity
🛡️ Durability	SANY machines are known for heavy-duty Chinese steel

⚠️ Considerations

Point	Detail
📉 Resale value	Lower than CAT/Komatsu in Western markets
🔧 Parts availability	Good in Asia/Africa/Middle East; improving in Europe/Americas
🏗️ Perception	Still seen as "budget" by some Western contractors (though quality has improved drastically)

🌍 Markets

Region	Popularity
🇨🇳 China	⭐⭐⭐⭐⭐ (Home market — #1 seller)
🌍 Southeast Asia	⭐⭐⭐⭐⭐
🌍 Middle East & Africa	⭐⭐⭐⭐⭐
🇪🇺 Europe	⭐⭐⭐⭐ (Growing fast)
🌎 South America	⭐⭐⭐⭐
🇺🇸 North America	⭐⭐⭐ (Growing, still niche)

🔑 Summary


Class	13.5-ton mid-size crawler excavator
Best For	General construction, road building, utilities, rental fleets
Engine	Isuzu 98 kW (Tier 4 Final)
Bucket	0.45–0.65 m³
Dig Depth	~5.9 m
Price Range	$65,000 – $80,000 USD (varies by market & config)
Warranty	2 years / 2,000 hours (standard)

🏆 The SANY SY135 is arguably the BEST VALUE mid-size excavator on the market today — offering 90% of the performance of a CAT 313 at 75% of the price, with modern smart features that even premium brands are still catching up to.

Would you like more details on any specific aspect — pricing in your country, rental rates, vs. a specific competitor, or maintenance schedule? 😊