El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado. / Nowadays, SME industries in the plastics sector fail to work with their maximum installed capacity, among the main factors are lack of market, normal or inevitable and conventional or technical stops, will be dealt with in this investigation. The problem is evident in 71.45%, the average percentage of capacity used in the plastics industries in Peru. Therefore, this article proposes the development of a three-phase production model and complements the Planned Maintenance pillar with Lean tools that seek to improve the capacity used by 17% in industries in the sector. The model starts with the 5S as a basis and support to standardize the ordering and cleaning habits to continue with SMED and Planned Maintenance of TPM. The model was validated with an implementation, an 18% increase in the production capacity used, so it can be concluded that the proposal for improvement presented serves as a reference for future research.