Analyze of mitigation waste in reconditioning process of Iron Drum with Lean Six Sigma (Case study at PT Mulya Adhi Paramita)

Abstract

PT. Mulya Adhi Paramita is a chemical company that focuses on the distribution of chemicals, but also performs the process of reconditioning used iron drums. In the process of reconditioning drum is still found some waste, for that this research using lean six sigma concept which aims to reduce waste on drum recondition process. This research uses DMAIC stage and using Waste Assessment Model method with the result of 2 biggest waste identification is waste motion and defect which will become priority improvement, using Defect Per Million Opportunity to know sigma level that is equal to 3,77 sigma, Value Stream Mapping with percentage result PCE on CVSM of 16.31%; Process Activity Mapping result is value added time of 60.22 minutes, non value added time of 9.74 minutes, and necessary non value added time of 21.88 minutes. After performing the improvement implementation can be seen the result is the increase in PCE on FVSM of 21.5%, decreased percentage defect by 0.72% and DPMO with sigma level of 3.81 sigma.