Desarrollo de estrategias mediante análisis de fiabilidad, disponibilidad, mantenibilidad para mejorar el rendimiento de las máquinas críticas de la biofábrica in vitro ROSTLINA Cía. Ltda. - Macará

Abstract

The objective of this study was to develop maintenance strategies through analysis of reliability, availability, maintainability to increase the performance of the critical machines at BIOFÁBRICA IN VITRO ROSTLINA CIA. LTDA. – MACARA. The methodology to determine the operational context of the biofactory was through data collection and field observation, then criticality analysis was performed with the qualitative method. The reliability block diagram of the Invitro vegetable production process was designed, from which two systems were determined: media preparation and culture propagation, production capacity was calculated. RAM methodology then was applied based on failure history and finally strategies are established to increase availability of critical equipment. As a result of the criticality analysis, six machines were found in category A, considered more critical. The result of the calculation of the production capacity for the first system is 35 units per hour, with availability of 87%, the mean time between failures of 5904 hours and a mean time to repair of 920 hours. Whereas in the second system, the production capacity is 17 units per hour, with 98% availability, the mean time between failures of 10,376 hours and the mean time to repair of 248 hours. It is concluded that the most critical equipment is autoclave with 88% availability. Based on the root cause analysis, it was determined that not having a maintenance plan and not performing autonomous maintenance led the biofactory to stop its operation; For this reason, it is recommended to implement autonomous maintenance, a preventive maintenance plan and the 5S, in order to mitigate these problems and thereby increase the availability of machines by at least 2 hours a day, which would represent an annual utility of approximately 11,000.00 dollars.