Used Sany 155 Excavator

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SANY SY155 Series Crawler Excavator Detailed Introduction

The SANY SY155 series is a benchmark 15-ton class medium crawler excavator independently developed by SANY Heavy Industry for global markets. It is offered in two core configurations to meet diverse operational needs: the standard tail-swing SY155C for high-load general construction scenarios, and the zero tail-swing SY155U for confined-space operations. All models comply with latest global emission regulations including China Stage IV, EU Stage V and U.S. Tier 4 Final, and are widely praised for their balanced performance, low fuel consumption, high durability and user-friendly design.

1. Core Technical Specifications

Item	Standard SY155C	Zero Tail-Swing SY155U
Operating Weight	15,200 – 15,800 kg	15,000 – 15,600 kg
Engine Model	Isuzu 4JJ1-X turbocharged diesel engine (common rail injection)	Same as SY155C
Net Rated Power	86 kW @ 2,200 rpm	86 kW @ 2,200 rpm
Bucket Capacity	0.58 – 0.75 m³	0.55 – 0.7 m³
Max. Digging Depth	5,530 mm	5,480 mm
Max. Digging Height	8,650 mm	8,600 mm
Max. Dumping Height	6,150 mm	6,100 mm
Max. Digging Radius	8,250 mm	8,200 mm
Tail Swing Radius	2,350 mm	1,890 mm
Travel Speed (Low/High)	3.2 / 5.4 km/h	3.1 / 5.2 km/h
Swing Speed	12.5 rpm	12.2 rpm
Ground Pressure	42 kPa	40 kPa
Rated Bucket Breaking Force	99.3 kN	98 kN
Rated Arm Digging Force	64.7 kN	63 kN

2. Core Features & Advantages

2.1 High Efficiency & Ultra-low Fuel Consumption

Equipped with SANY’s proprietary positive flow hydraulic system, which matches engine output with hydraulic demand in real time, reducing energy loss by 12% compared to traditional negative flow systems, and delivering 10% faster action response.
Three adjustable work modes: Heavy (H) mode for high-load excavation, Standard (S) mode for general operations, and Economy (E) mode for light-duty finishing works, cutting comprehensive fuel consumption by 10-15% compared to peers in the same class (actual operation fuel consumption is only 8-11 L/h).
Standard auto-idle and auto-stop functions automatically reduce engine speed or shut off the engine after a period of inactivity, further reducing unnecessary fuel waste.

2.2 Superior Durability & Reliability

Key structural components (boom, dipper arm, X-type undercarriage) are made of high-strength wear-resistant steel, and have passed 12,000 hours of extreme working condition tests (quarry, mountain, frozen soil etc.), with anti-torsion performance 20% higher than industry average.
The reinforced track system uses high manganese steel track shoes and heavy-duty carrier rollers, extending service life by 30% under abrasive working conditions.
Dual-stage air filtration system adapts to high-dust scenarios such as quarries and dry construction sites, reducing engine wear caused by dust inhalation.

2.3 Comfortable & Safe Operating Experience

The cab is certified with ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure), effectively protecting operator safety in case of rollover or falling objects.
Equipped with multi-directional adjustable air suspension seat, fully automatic constant-temperature air conditioning, and 360° sound insulation design, the operating noise inside the cab is only 76 dB(A), reaching passenger car-level comfort.
The 7-inch high-definition touch display provides real-time monitoring of equipment operating parameters, fault self-diagnosis and alarm functions, and is equipped with standard rear-view camera to eliminate blind spots.
The electronic pilot control lever has light operating force and high action accuracy, which greatly reduces operator fatigue during long hours of work. The hydraulic safety lock cuts off all action power when turned on, effectively preventing misoperation.

2.4 Easy Maintenance & Low Operating Cost

All daily maintenance points (oil filter, fuel filter, hydraulic oil filter, lubrication points) are centrally arranged on the side of the fuselage, accessible directly from the ground without climbing the equipment, cutting daily maintenance time by 40%.
The service life of hydraulic oil is extended to 5,000 hours, and the air filter replacement cycle reaches 1,000 hours, greatly reducing long-term maintenance costs.
Standard SANY Remote Monitoring System supports real-time tracking of equipment location, working hours, fuel consumption and fault warnings, which greatly improves fleet management efficiency for contractors.

3. Typical Application Scenarios

The SY155 series is versatile for a wide range of working scenarios:

Municipal engineering: road repair, pipeline laying, small building demolition, urban greening
Confined space operations (for SY155U): old urban area renovation, indoor demolition, tunnel construction, narrow site work
Agricultural and water conservancy projects: canal excavation, farmland consolidation, pond and dam construction
Small infrastructure: residential foundation excavation, rural road construction
Auxiliary operations: quarry working face cleaning, material transfer, construction waste removal

4. Global After-sales Support

SANY has established service networks in more than 200 countries and regions around the world, providing 24/7 after-sales response:

Core components (engine, hydraulic system, main pump) enjoy a 1-year/2,000-hour warranty
Spare parts warehouses are set up in core markets around the world, ensuring that more than 95% of common parts can be delivered within 24 hours
Customized financial services and operator training services are available for customers of different scales

Thanks to its high cost-effectiveness, reliable performance and low whole-life cycle cost, the SANY SY155 series has become one of the best-selling 15-ton excavator models in the global market, and is widely recognized by individual operators and large engineering contractors alike.

Non flooded

No accident

Original product

Used Sany 155 Excavator

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