At present, two U-shaped fully-attached rear-reversing dump trucks have completed assembly in the workshop, undergone multiple rounds of performance tests and empty-load lifting tests. They have now been securely loaded onto transport flatbeds and are ready to be dispatched to Zambia. These heavy-duty trailers are mainly responsible for the transportation of sand, gravel, mining materials, construction waste and crushed stone building materials. They are highly suitable for the material transportation needs of local mining operations, rural road construction and urban infrastructure projects. They can provide local engineering contractors with stable and reliable material transportation solutions.

Many engineering procurement companies in Zambia are having doubts about whether the heavy-duty trailers can adapt to the dusty and muddy roads in the remote mining areas of the country. These trailers were manufactured in full accordance with the standards for exporting engineering equipment in Africa. Every welding point, hydraulic pipeline, and axle component was thoroughly inspected and debugged. The exclusive U-shaped body structure can reduce the residue of adhered materials. Whether for short-distance site transportation or long-distance heavy-load transportation between mining areas, the trailers can maintain a smooth and stable working state. The lifting hydraulic assembly is the most crucial rear-mounted lifting power component of the trailer. The entire hydraulic pipeline has undergone pressure-resistant sealing treatment. The lifting speed is smooth and powerful, and there will be no problems such as lifting stalling or hydraulic oil leakage. How many operators have been stranded in remote mining areas due to the failure of the discharge system? The optimized rear-mounted lifting structure is evenly stressed and can still stably support the body even when fully loaded with mining materials, and is suitable for all-weather and continuous site discharge work.

The three-axle balanced chassis of the trailer, as a three-bearing heavy-duty traveling structure, can distribute the overall load under full load conditions, preventing any single axle from bearing excessive pressure. The balanced load distribution can enhance the tire grip on slippery muddy roads, avoid the risk of rollover caused by heavy loads and sudden turns, slow down the wear rate of components such as tires, steel plate suspensions, and axles, extend the service life of the entire traveling components, and enable them to cope with the complex and harsh outdoor driving conditions in the Zambian mining area with ease.

The complete set of trailer components includes a high-pressure hydraulic protection unit, a heavy-duty air brake device, and a body buffer and collision prevention accessory. The hydraulic protection device can absorb the pressure shock generated during lifting. The air brake system responds quickly and can achieve smooth deceleration even on slippery and gravel-covered roads. Various supporting components reduce the vibration impact transmitted from bumpy road conditions to the three-bearing heavy-duty walking frame structure, minimizing the damage caused by vibration fatigue to the U-shaped wear-resistant cargo box and the main frame. This ensures that two U-shaped fully-attached rear-reversing trailers can stably undertake infrastructure and mining transportation tasks in various parts of Zambia.