8-ton backhoe loader

In medium-sized engineering scenarios such as municipal pipeline network expansion, mine tunnel cleaning, and large-scale farmland water conservancy transformation, the 8-ton backhoe loader, with its all-round performance of "heavy-load operation + bidirectional efficiency", has become a key equipment connecting small and medium-sized equipment with large machinery. The operating weight of 8000kg provides a stable operational foundation, and the transport dimensions of 6120×2410×3763mm balance road passage and on-site operation needs. It can not only transfer through regular highways but also complete the dual tasks of deep excavation and heavy-load loading on the construction site, providing an integrated "one machine replacing multiple machines" solution for medium-sized projects.

Power and Transmission: Strong Output, Efficient Adaptation

The equipment is equipped with a Yuchai 75W (optional) inline four-stroke engine, adopting direct injection combustion technology, with a powerful 45-55KW power output and excellent fuel efficiency. The single-stage three-element YJ280 torque converter is matched with a fixed-shaft power transmission gearbox, and the maximum efficiency of 84.4% ensures minimal power loss. The two forward and two reverse gear design not only meets the transfer speed of 28Km/h but also provides the large torque required for heavy-load operations through low gears.

The rated load capacity of 8t for the front axle and 18.5t for the rear axle, combined with 14-17.5/19.5L-24 specification tires, provides both load-bearing capacity and grip. The scientific setting of 0.55Mpa front tire pressure and 0.223Mpa rear tire pressure ensures heavy-load stability while reducing damage to hardened roads. The maximum traction force of 39KN can easily tow small trailers, expanding the operation scenarios.

Loading Performance: Stable Lifting Under Heavy Load, Efficient Transfer

The loading device demonstrates strong material handling capabilities: the 1.0m³ bucket capacity can load 1.5 tons of materials at a time (about 50 bags of cement), the 38KN breakout force can easily shovel high-density materials such as wet clay and gravel, and the 2500kg loading lifting capacity meets the loading and unloading needs of medium-sized trucks.

The unloading height of 2700mm can connect to 3-meter-high silos or truck compartments, and the unloading distance of 925mm avoids material spillage. Combined with smooth lifting actions, the entire process of loading, lifting, and unloading is efficiently connected, with an hourly loading capacity of up to 80 cubic meters, which is 60% higher than that of 5-ton models. The bucket edge is welded with wear-resistant alloy, extending the service life to more than 3000 hours, adapting to harsh working conditions with many gravels.

Excavation Efficiency: Deep Area Operation, Precise Control

The excavation device focuses on medium and deep hole operation needs: the maximum excavation depth of 3800-4500mm can meet the excavation of municipal sewage pipes and small foundation piles, and the 0.3m³ bucket capacity is suitable for medium-sized earthwork transfer. The 190° swing angle reduces the frequency of body adjustment, and with the precise operation accuracy of 52mm, it can complete the trimming of ditch slopes and the leveling of trench bottoms for pipeline embedding.

The excavating arm is made of high-strength alloy steel, and the key hinge points are quenched, increasing the deformation resistance by 40%. Even when operating in hard rock interlayers or weathered rock formations, it can maintain a stable excavation rhythm. With the optional breaker attachment, it can directly break stones with a diameter of less than 500mm, reducing secondary crushing procedures.

Structure and Safety: Stable and Reliable, Strong Adaptability

The overall machine weight of 8000kg and the wheelbase design of 2246mm ensure stability during heavy-load operations and avoid the risk of "tail lifting"; the minimum ground clearance of 300mm can pass through bumpy roads, and the cab height of 2900mm from the ground provides a wide field of vision, facilitating observation of the operation surface and the surrounding environment.

The emergency braking system responds quickly to ensure parking safety in emergency situations; key structural components adopt a box-section design, increasing torsional strength by 30%, and the body has excellent sealing performance, with dust and water resistance reaching IP65, adapting to dusty or muddy environments such as mines and farmlands.

Operation and Maintenance: Intelligent and Convenient, Cost-Controllable

The operating system adopts a dual-mode switching design, with excavation and loading functions controlled by a unified joystick. The switching process does not require complex operations, and new operators can get started after simple training. The cab is equipped with a suspended seat and air conditioning to reduce fatigue during long-time operations.

The maintenance design is user-friendly: centralized lubrication points reduce maintenance working hours, the oil pressure range of 1373-1569Kpa for the gearbox clutch is convenient for daily inspection, the engine inspection hatch opens at an angle of 90°, and vulnerable parts such as filters and oil pipes are easy to replace. The single-stage final drive has a simple structure and low failure rate, saving nearly 5000 yuan in maintenance costs every year.

Multiple Adaptation: One Machine with Multiple Uses, Covering All Scenarios

By quickly replacing attachments, the equipment can be extended to more scenarios: in addition to the standard bucket, it can be equipped with a log grapple to carry logs, a hydraulic breaker to handle concrete blocks, a dozer blade to level the site, etc., realizing the whole process of "excavation-loading-crushing-transportation". The unified hydraulic interface supports attachment replacement within 10 minutes, and one machine can replace excavators, loaders, and small crushing trucks, reducing equipment investment by more than 40% for medium-sized engineering teams.

Whether it is underground pipeline construction in municipal engineering, short-distance transportation in mines, or irrigation channel excavation in large farmlands, the 8-ton backhoe loader, with its core advantages of "heavy-load dual capabilities + efficient integration", has become the core equipment of medium-sized projects, ensuring that each operation can balance efficiency and economy while guaranteeing strength.