| dc.description.abstract |
The process of sorting coffee beans is a crucial step because at this stage, the coffee beans are separated from dirt, debris and sand. Sorting is carried out twice, before and after roasting, to ensure the coffee beans remain good and clean. This research aims to design machine tools that can improve the cleanliness and efficiency of the coffee sorting process by considering ergonomic aspects. In this research, the methods applied include RULA (Rapid Upper Limb Assessment), REBA (Rapid Entire Body Assessment), and NBM (Nordic Body Map) to identify worker complaints. Analysis of NBM questionnaires revealed complaints at sorting workstations. The score from the REBA calculation is 6 in table A, 5 in table B, and 8 in table C (high), while the score from the RULA method is 4 in table A, 5 in table B, and 7 in table C (high). Because the results of both methods showed high scores and indicated an urgent need to improve working posture, an automatic sorting machine was designed. The research results recommend creating a tool that can simplify the process of sorting coffee beans, so that operators can work more comfortably and reduce the risk of injury. Keywords: coffee sorting machine, machine design, work posture, REBA, RULA | en_US |
