Rear-tipping semi-trailers handle heavy bulk materials such as coal, ore, rock and gravel for mines, quarries and construction works, with tank volumes ranging from 30CBM to 35CBM and maximum loading capacity up to 80 tons. Thick high-tensile steel frames and strengthened cargo boxes effectively resist impact and deformation under harsh working conditions. Reliable hydraulic lifting structures support large-angle rear unloading to shorten cargo turnover time. Multiple axle layouts including 3-axle and 4-axle structures are available, with lift axles optional to balance weight and maintain stable running on rough roads. Low-gravity structural design and standard braking systems fully comply with international export criteria. Wear-resistant lining, anti-rust coating and customized tank sizes can be configured to satisfy diverse heavy haul demands from global transport fleets.