STRUCTURING A PREVENTIVE MAINTENANCE PLAN WITH A FOCUS ON OPERATIONAL RELIABILITY: A CASE STUDY IN THE METALLURGICAL SECTOR

Maintenance and reliability systems are relevant in all business sectors, as effective maintenance contributes to efficient operational performance, reducing risks and costs. The objective of this study was to identify quality tools applicable to maintenance planning and to support the proposition of a plan aimed at restructuring and optimizing existing processes. This descriptive research adopted an approach based on a biblioFigureic review, followed by its application in a case study conducted in a medium-sized company in the iron and steel sector, with 15 years of experience in the market. The company provides a wide range of products and services, including longitudinal and transverse cutting, flat steel, galvanized steel, and heavy plates, complying with strict industrial standards and maintaining a high level of quality. The results showed that the application of quality tools, such as the Pareto Diagram and the Ishikawa Diagram, is essential for identifying critical failure points and for developing a prototype preventive maintenance plan. Although the complete development of the plan was not possible within the scope of this study, the proposed prototype provides a solid basis for the future implementation of preventive actions, directing efforts toward the most critical components of the Slitter and allowing replication in other equipment and systems of the company.