PERANCANGAN, PEMBUATAN DAN PENGUJIAN MESIN PENGAYAK PASIR DENGAN METODE EKSITASI MASSA TIDAK SEIMBANG

Abstract

Sands with homogenous size are really needed for building construction. Sands with homogenous size are got from manual screening process which needs human physical power that cause long duration screening process, so that sand screening machine is needed to minimize human physical power use and to increase production capacity. In this research, designing, manufacturing and testing for Sand screening machine with unbalance mass excitation are conducted. Unbalance mass excitation caused the screening vibrates, so that the sand are elaborated base on the same grain size of the sand with screen mesh size. For those purposes, sand screening machine design which consists of several machine elements: screen box with several levels of mesh size, shaft, rotor with unbalance mass, motor, propeller shaft and spring are conducted. From design process, the sand screening machine with unbalance mass excitation and capacity of 578 kg/hour then manufactured. The sand screening machine testing determined that the increasing of unbalance mass (200 gram, 240 gram, 300 gram, 332 gram and 384 gram) caused vibration amplitude and machine capacity are raised.