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By observing the older dumper or tipper trailers, themajordifficulty is, unloading the constructionmaterials. Ourresearch in the several building sites, uncovered the fact that thematerialswereunloadedfromthetrailerinthemostdifficultwaypossible. Traditional trailers dump materials just one way that isat the posterior of the vehicle. It is hard to empty the materials inlittle minimized roads and little streets. In our task, these arecorrected to empty the trailer on the whole three sides by usinghydraulics.Thehydraulicpumpisconnectedtointernalcombustion engine, with the help of engine power, the workingfluid were pressurized. This compressed fluid is utilized to enactthe chamber, when the valve is turned on. By this project work, itissimpleforthedriver toemptythedumping trailerand itdecreasestheenergyandtime.