Quality Control on Bucket Production Process Using Quality Tools Method (Case Study: A Medium Sized Company)

Abstract

Abstract This study aims to identify and solve the root causes of the defective products in the injection production line in a company that produces bucket and pipe-related products made from plastic ores. In order to maintain the quality of their products, this company has to figure out what to do in order to pay attention more in their actions to minimize the defects occurred from the production process. Good quality products are also very important to maintain the good relation with their customers. The samples for this research are taken directly from the field and analyzed using the quality tools method which are control chart and pareto diagram, also an addition method of the five-whys analysis to figure out the root causes. Based on the research results, the defective products that occurred in the production process are still in control but still needs to be improved right away. Another result also shows that the root causes are categorized to four groups varies from man, machine, method, and material. Therefore, there are two ways to overcome this problem: preventive and repressive action. The results of this study can be used as a reference in the future for a quality control applied in various companies.