Implementação da metodologia SMED na manutenção preventiva de uma centrifuga HFB 130

Abstract

With the increase in competitiveness between companies, the search for continuous improvement is growing more and more. It is necessary to adapt innovative management models, capable of providing increased productivity with reduced costs, as in the case of Lean philosophy. The maintenance sector is integrated into this market and also requires competitiveness. In view of this scenario, it is vital to reduce the waste associated with preventive machine maintenance in a production process, using Lean principles and practices, such as the SMED methodology. This article aims to implement the methodology called SMED (Single Minute Exchange of Die) also known as Rapid Tool Change (TRF) reducing the time for preventive maintenance in a centrifuge. The implementation of this methodology created within the thought of the Just in Time system, emphasizes separation and the transfer of internal maintenance activities to external activities, thus obtaining a reduction in preventive maintenance time on the machines. This reduction in maintenance time allows the company to have more productive hours. The case study was carried out on a HFB 130 centrifugal machine from a food factory. During the application of the methodology, 3 maintenance teams were used and in each team a monitor counting the times of each activity. The main finding is that through the implementation of SMED the preventive maintenance time of this machine has reduced considerably by 83%, thus resulting in a gain of 30 hours of production of the centrifuge.