Analysis of Quality Control of the Production Process of Rotary Kiln III Using the Lean Six Sigma Method at PT. XYZ Southeast Sulawesi

Abstract

Quality control is a verification system from a process level to measure the characteristics of product quality, compare specs and ensure quality in accordance with the predetermined standards. PT. XYZ Southeast Sulawesi is one of the FeNi (FerroNickel) processing factory companies that really pay attention to the quality of the products produced, in the work division at PT. XYZ Southeast Sulawesi still has defective products, one of which is the Rotary Kiln III section. Therefore, research is carried out in that section to detect out what factors cause product failures and seek improvement suggestions to minimize the types of failures that occur. The method used is Lean Six Sigma. The stages in this analysis use the define, measure, analyze, improve, and control (DMAIC) stage. The average value of the Sigma level in the Rotary Kiln III section is 4028 with a DPMO value of 5745. In the Rotary Kiln III section, the root cause analysis of the problem with a Fishbone diagram is then executed to improve using the FMEA method.