The side tipper trailers can do left tipping and right tipping. To increase the bearing ability of the side tipper semi trailer engineers design and workers welding small details special for our side tipping semi trailers to satisfy side tipper trailers buyer transport demand. The main bean build with thicker steel sheet and one sheet not welded two thin sheets. Side tipper trailers main bean by this way can service 100 tons payload for many years and without bend.