Studing the Influence of Six Main Industrial Losses on Overall Equipment Effectiveness in Cold Rolling Unit of Mobarakeh Steel Complex

Overall Equipment Effectiveness (OEE) is a key indicator and a basis for evaluating the effectiveness of equipments as well as assessing the effectiveness of the Total Productive Maintenance (TPM) system. This indicator together with overall equipment performance can be used in production lines such as steel production. The aim of this article is to study the influence of six main industrial losses on the OEE indicator. For this purpose، the OEE has been calculated in the cold rolling production lines of Mobarakeh Steel Complex; the gap between production lines and the global industrial standards has been studied; the causes of production system inefficiency has been investigated; and the effectiveness of TPM system، equipments'' bottlenecks and the influence of the main industry losses on OEE have been studied. The findings imply that the influence of the variation of availability and performance rates on OEE is high، while the influence of the variation of quality rate on OEE is not considerable.