三一重工 SY 35 U

The Sany SY35U is a highly maneuverable compact excavator that excels in confined spaces and urban environments. As part of Sany's popular mini excavator lineup, it has earned a reputation for reliability, fuel efficiency, and operator comfort in small-scale construction projects. Powered by the efficient Yanmar 3TNV88F-ESS 3-cylinder turbocharged diesel engine, the SY35U delivers 18.2–20.2 kW (24.4–27.1 HP) at 2,200 rpm, providing sufficient power for small earthmoving tasks while maintaining excellent fuel economy. The engine meets Tier 3/Stage IIIA emission standards and features advanced combustion technology for optimized power output and reduced emissions. The excavator's hydraulic system uses a variable displacement axial piston pump with a flow rate of 40–45 l/min, ensuring smooth, precise operation and fast cycle times. With 24.5 MPa hydraulic pressure, bucket digging force of 30.4 kN, and arm digging force of 21.6 kN, the SY35U handles various materials including soil, sand, gravel, and light rock with ease. It offers a maximum digging depth of 2,770–2,850 mm and maximum reach at ground level of 4,850–5,000 mm, making it suitable for trench digging, foundation work, and material handling tasks in tight spaces. The compact undercarriage with 300 mm standard track shoes provides excellent stability and traction across different terrains, while maintaining a low ground pressure of 32 kPa for working on sensitive surfaces. The zero tail swing design (rear swing radius < 1.0 m) enables safe operation in confined urban environments where space is limited. The excavator features a 58% climbing capacity for working on sloped terrain. The spacious cab is ergonomically designed with an adjustable seat, intuitive controls, climate control (optional), and excellent visibility for operator comfort during long workdays. Safety features include ROPS/FOPS certified cab, travel alarm, rearview mirrors, and optional rearview camera for increased job site safety. Maintenance is simplified with grouped filters, ground level service access, and centralized lubrication points, reducing downtime and operating costs. With its balance of compact size, power, and efficiency, the Sany SY35U is a popular choice among contractors, rental companies, and homeowners for a wide range of urban construction, landscaping, utility installation, and indoor demolition applications.