The actual shape can vary, from a squarer cross section to a more rounded cross section. The corners of the body can be bent in various ways.

The main method of forming the corners is to use a press brake, which is more flexible and can bend a longer section than a roller bending machine. Because the U-shape does not have any corners and the load distribution is over the entire design, the stress is not centered. The risk of placing welds in high-stress areas is therefore lower with the U-shape design. Finally, because the U-shape lacks sharp corners, it usually has a longer service life.

U-shape tipper body design