This side tipper dump trailer is used to transport and tipping sand, stone, grain, etc. 1) High quality steel makes trailer itself lighter but strong enough for heavy cargo, so that transport company can load more tons. 2) The most skilled workers make welding of this dump trailer more frequent and strong. 3) Dump box dimensions and U-shape, box thickness, HYVA hydraulic cylinder and optional accessories(two pieces spare tire carriers, water tank, fuel tank, etc.) are all customized by different cargo needs which build modern