3.5-ton backhoe loader

This 3.5-ton backhoe loader, with its compact and flexible design and versatile operational performance, has become an ideal choice for small and medium-sized engineering projects. It is widely applicable to scenarios such as municipal maintenance, agricultural transformation, and small-scale infrastructure construction, significantly improving construction efficiency through its "dual-function in one machine" feature.

The core power is equipped with a Yunnei YN25GB engine, adopting a direct injection, four-stroke design. The 4-cylinder structure with a 90mm bore can output a strong power of 37KW at a rated speed of 2400r/min, ensuring stable power output and excellent fuel economy. The transmission system is equipped with a ZL28F torque converter and a fixed-shaft power shift gearbox, providing 2 forward gears and 2 reverse gears. Combined with hydraulic transmission technology, it not only ensures precise control during low-speed operations but also achieves a transfer speed of 25Km/h, reducing the loss of non-operational time.

In terms of operational performance, the dual functions of excavation and loading work together efficiently. The excavation end is equipped with a bucket with a width of 400mm and a capacity of 0.1m³, with a maximum digging depth of 2000mm and a digging radius extending to 2700mm. The maximum digging force of 25KN can easily handle materials such as hard soil and gravel; the 180° swing angle makes the operation range more flexible, and with an excavation unloading height of 1800mm, it can accurately complete tasks such as ditch digging and foundation pit trimming. The loading end is equipped with a bucket with a width of 1800mm and a capacity of 0.5m³. The maximum breakout force of 36KN ensures efficient material grabbing. The maximum unloading height of 2800mm and unloading distance of 800mm can directly unload materials into small and medium-sized trucks, eliminating the need for secondary transfer; the maximum loading lift height of 3300mm and the total front shovel operation time of 12 seconds further increase the workload per unit time.

The passability and stability of the equipment provide reliable protection for complex working conditions. The total machine weight is 3500Kg, and the overall dimensions are controlled at 5500mm×1750mm×2650mm. The 2070mm wheelbase and 1475mm track width form a reasonable support, and the minimum turning radius of 3500mm allows flexible steering in narrow spaces. It is equipped with 20.5-16 specification tires, with both front and rear tire pressures of 250KPa. The wide tire surface ensures grip on terrains such as mud and slopes, and the maximum climbing ability of 25° easily copes with complex environments such as hilly terraces; the minimum ground clearance of 250mm effectively avoids collisions between the chassis and ground protrusions, protecting core components.

The detailed design balances durability and safety. It adopts an Isuzu-type axle, with enhanced load-bearing capacity and impact resistance. Cooperating with the oil-brake drum-type service brake and manual parking brake, the braking distance of 330mm ensures safety during operation and driving. The 30L fuel tank and 30L hydraulic oil tank capacity meet the needs of all-day continuous operation. The system pressure of 16MPa enables quick response of hydraulic actions, and the 33° steering angle of the articulated full-hydraulic steering further improves operational flexibility. Whether it is precise excavation, efficient loading, or maneuvering through narrow spaces, this 3.5-ton backhoe loader can create higher operational value for small and medium-sized projects with its strong power, flexible control, and reliable performance.