Used Sany 155 Excavator

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SANY SY155 Crawler Excavator Detailed Introduction

The SANY SY155 is a 15-ton class medium-small crawler excavator developed by SANY Heavy Industry, tailored for both construction and municipal engineering scenarios. As one of the best-selling models in SANY's mid-sized excavator lineup for global markets, it balances high working efficiency, low operation cost, and operator comfort, and is widely praised by users in Europe, Southeast Asia, North America, and the Middle East for its reliable performance under complex working conditions.

1. Core Specifications (Standard Version)

Parameter	Specification
Operating Weight	14,800 – 15,500 kg
Rated Power	86 kW / 2200 rpm
Emission Standard	Euro Stage V / China National IV
Standard Bucket Capacity	0.58 – 0.71 m³
Max Digging Depth	~5,560 mm
Max Digging Reach	~8,250 mm
Max Digging Height	~8,670 mm
Travel Speed (High/Low)	5.2 / 3.1 km/h
Swing Speed	12.5 rpm
Gradeability	35° (70%)
Fuel Tank Capacity	280 L
Hydraulic Oil Tank Capacity	150 L

Note: SANY also offers the SY155U zero-tail swing version for extremely narrow operation scenarios, with a rear swing radius of only 1480 mm, suitable for urban street construction, indoor demolition and other space-limited sites, and its core performance parameters are basically consistent with the standard version.

2. Power System

The SY155 is equipped with an Isuzu 4JJ1-X turbocharged intercooled diesel engine, a proven powertrain with more than 10 years of market verification:

High low-speed torque output, sufficient power reserve for heavy load operations such as hard soil excavation and rock loading;
Electronic high-pressure common rail fuel injection system and multi-stage fuel filtration, 8-10% higher fuel efficiency than previous generation models, comprehensive fuel consumption is only 9-11 L per hour under standard working conditions;
Excellent low-temperature adaptability, can start normally at -25℃ without preheating auxiliary devices.

3. Hydraulic System

It adopts SANY's exclusive positive flow hydraulic control system, with core components supplied by international first-tier brands (Rexroth, Kawasaki, etc.):

Precise matching between pump output flow and operator control demand, greatly reducing pressure loss and energy waste;
Load-sensitive control system realizes smooth composite actions (simultaneous boom lifting, arm retracting, swing), 15% faster response speed than similar products, excellent fine operation performance suitable for precision work such as pipe laying and landscaping;
High-quality sealing components, effectively avoid oil leakage failure, extend service life of the hydraulic system.

4. Working Performance

The reinforced boom and arm are made of high-strength welded steel plates, with thickened stress points, which can withstand long-term impact loads during heavy-duty operations;
X-type torsion-resistant undercarriage, equipped with reinforced track shoes, support wheels and tensioning devices, high passability on muddy, rocky and uneven construction sites;
Supports a variety of optional attachments: breakers, augers, grapples, rippers, narrow trench buckets, etc., to meet the needs of different operation scenarios.

5. Operator Cabin & Comfort

ROPS/FOPS certified safety cabin provides maximum protection for operators in case of rollover or falling object impact;
Fully adjustable air suspension seat reduces vibration by more than 40% compared with ordinary seats, supports multi-directional adjustment to fit operators of different heights;
8-inch high-definition LCD monitor displays real-time operating data, fault warnings and maintenance reminders visually;
Fully automatic air conditioning system with 10 air outlets maintains a comfortable cabin temperature at -30℃ to 50℃;
Sealed design reduces interior noise to below 75dB, equipped with USB charging port, large storage box, cup holder and other humanized configurations to reduce long-term operation fatigue;
270° panoramic view through wide front and side glass, eliminating operation blind spots.

6. Durability & After-sales

All key maintenance points are accessible from the ground, daily maintenance such as oil level check, filter replacement, and water discharge can be completed without climbing the machine, shortening maintenance time by 30%;
Extended wearing parts service cycle: hydraulic oil replacement cycle up to 5000 hours, engine oil replacement cycle up to 1000 hours, greatly reducing later operation cost;
SANY provides global after-sales service with more than 200 overseas service outlets, spare parts supply response within 24 hours in most regions, and the whole machine enjoys a 2-year / 3000-hour warranty policy.

7. Main Application Scenarios

The SY155 is widely used in municipal construction, road and bridge repair, landscaping, trench digging, small house demolition, material handling, farmland improvement, and small mining operations. Its moderate size is suitable for narrow urban construction sites, and also has sufficient power for heavy load construction in suburban and rural areas.

Compared with European, American and Japanese brands of the same class, SANY SY155 has obvious advantages in cost performance, failure rate and operating cost, and has become the first choice for many small and medium-sized engineering contractors around the world.

Non flooded

No accident

Original product

Used Sany 155 Excavator

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