The Development of a Small Paddy Winnowing Machine for Community

Abstract

In this research, a small paddy winnowing machine for the community has been developed to solve the problem of traditional machines that require manual labor to rotate the fan by hand. As a result, the resulting wind is uneven, resulting in poor efficiency of paddy winnowing. Therefore, the researcher designed and built the machine by installing a motor as a power source for blowing unfilled grain, straw and rice husk are removed from paddy grain to be used for making seeds. The results of the experiment from the preparation of 15 kilograms of experimental paddy were obtained by mixing 13 kilograms of full-grain paddy, 1 kilogram of unfilled grain and 1 kilogram of rice husk. 3.67 kg/min The measured wind speed is 2.52 m/s. which is able to sort 12.96 kilograms of full grain paddy (99.69%), 0.92 kilograms of unfilled grain (92%) and 0.97 kilograms of rice husk, with the weight of paddy lost due to dust diffusion of 0.15 kilograms with an average time of 4.09 minutes (=4.37). On a case-by-case basis, it was found that users were satisfied with the small paddy winnowing machine for the community in descending order: usage (=4.38) followed by structure and production (=4.37)