This study aims to identify bottlenecks in the gas cylinder manufacturing process and implement lean manufacturing tools to improve the OEE (Overall Equipment Effectiveness). The research methodology involved a systematic review of scientific articles related to lean manufacturing and the gas cylinder industry, as well as an analysis of the current state of the industry. The results show that the bottleneck in the gas cylinder manufacturing process was the forming process, which caused rework, failures, and losses. The implementation of lean manufacturing tools, such as TPM and 5S, helped to improve the performance of the operators, reduce the forming machine failures and incorporate capacitive proximity sensors that avoid operator’s errors. The main results showed that the principal indicator, OEE was improved significantly, increasing from 63% to 76%, which represents a growth of 13 percentage points. The study recommends the adoption of lean manufacturing practices to optimize the gas cylinder manufacturing process and improve the quality of the final product. The findings of this study can be used by industry stakeholders and researchers to develop strategies for the sustainable development of the gas cylinder industry in Peru.