Barn semi-trailer is used to pull simple goods, such as vegetables, fruits, clothing, electrical appliances, and other daily necessities. It also plays a very important role in power engineering and communication engineering. For engineering equipment, they are transported by barge semitrailer. Semi Trailer

　　自卸半挂车按用途可分为两大类:一类归于非公路运送用的重型和超重型自卸挂车首要承担大型矿山、工程等运送任务，一般和挖掘机配套运用。另一类归于公路运送用的轻中型一般自卸挂车首要承担砂石、泥土、煤炭等松懈货品运送，一般与装载机配套运用。

　　1、车厢选用侧翻和后翻自卸办法，可有效地进步装卸机运送散装零星货品的运送功率。

　　2、车架和车厢纵梁均选用优质锰板焊接而成，货箱有簸箕和矩形两种。具有强度高、举升力强、刚度、韧性好，承载能力强，

　　3、工艺精巧:首要部件选用先进设备加工而成，纵梁有全自动埋弧焊接而成，选用装置机进行轮轴、钢板簧的精确装置。

　　Dump semi-trailers can be divided into two categories according to their uses: one is heavy and super-heavy dump trailers used in off-road transportation, which mainly undertake large-scale mining, engineering and other transport tasks, usually used with excavators. Another kind of light and medium-sized ordinary self-unloading trailer used for highway transportation mainly bears loose cargo transportation such as sand, clay, coal and so on, usually used in conjunction with loaders.

　　1. Carriage rollover and backward self-unloading can effectively improve the transport efficiency of bulk cargo.

　　2, the frame and carriage longitudinal beam are all welded by high quality manganese plate, and the container has two kinds of dustpan and rectangle. It has high strength, strong lifting force, good rigidity and toughness, and strong bearing capacity.

　　3. Excellent technology: the main components are processed by advanced equipment, and the longitudinal beam is welded by fully automatic submerged arc welding. The assembly machine is used to accurately assemble the wheel shaft and leaf spring.