SY225C medium-sized hydraulic excavator

The new 4M50 engine system

The high-pressure common rail electronic fuel injection system is adopted for precise control to enhance combustion efficiency and power.

Water-cooled EGR reduces exhaust emissions and fuel consumption by less than 10%.

The 4-valve structure increases the intake volume of the cylinder, enhancing the combustion efficiency by 8% and achieving high power.

Exclusive customization

The SY225 dedicated parallel pump increases power output by 10% compared with the traditional series pump, has a more compact layout structure and is more convenient for maintenance and upkeep.

We have launched a domestic self-circulating "large-scale multi-stage filtration system" to deal with various domestic oil products and meet the requirements of National III emission standards.

In response to the individualized demands of users of this tonnage, this product can offer over 20 types of working device combinations and various variant products to enhance the profitability of customers.

Through the optimized design of structural components, stress testing, welding and plate research, durability tests, UT flaw detection of key parts and two-axis fatigue tests, etc., the service life of key structural components has been comprehensively enhanced.

Equipped with the "Yiweixun" system independently developed by Sany, a "thinking" construction management system covering "factory - agent - boss - operator" is established, making the construction management of the project low-cost, low-risk and high-efficiency.