The Factorial Design with the type of Plackett-Burman to Determine the Optimization in the Brown Rice Production Process

This research aims to improve the paddy husking process by experimenting with Hom Nin rice. By designing a factorial experiment, placket-Berman type, to determine the optimum value in the husking process to obtain the lowest and best percentage of broken rice in the husking process. By controlling factors two variables are the spindle of speed,and the clearance of rubber forthe two rubbers.The process model was formulated based on analysis of variance (ANOVA) and regression of coefficient.The results showed that both variables were pvalue is greater than alpha value (0.278> 0.05). The percentage of broken rice was at 8.76 at the confidence level 95 percent significance between the two factors That are, the spindleof speedis equal to 1,420 rpm and the clearance rubber between the two rubbers are equal to 1 millimeters.