Application of six sigma in quality control process at Indonesian cement company

In the research used DMAIC processes, namely encompasses Define, Measure, Analyze, Improve and Control. The research’s results found that the existing process quality of cement packing in the company is out of control. So that the improvement process is needed by eliminating the causes of its. The main cause that must be a priority in its improvement is the machine (belt-conveyor) condition in the cement packing process. The main solution to prevent the occurrence of the main cause namely by checking the machine (belt-conveyor) before and after shift exchange by using a checksheet periodically.