As usually unload materials from vehicle is consider as the various pneumatic cylinder act to powered operation to tipper backside in one direction. That conditions blockage problem in work area is

limited. To overcome can be used as pneumatic cylinder as multi directional dumper. Our review is focus as several gears in automobile and exposed the fact some complicated method adopted in trailer. The trailer has been loaded one direction. It is difficult to handle. From the research could be be decided to rectified that problem by design and analysis of suitable operation condition.