Usulan Perbaikan Tata Letak Fasilitas dengan Menggunakan Algoritma Corelap dan Algoritma Differential Evolution pada PT. Industri Invilon Sagita

Abstract

PT. Industri Invilon Sagita is a manufacturing company engaged in the processing of PVC into final products such as PVC door and PVC pipe. This company has a general problem such as failure to achieve the annual production target. this general problem is caused by problems with the facility layout namely there is backtracking, cross movement and the distance between the departments is too far. This problem can be solved by improving the facility layout using the CORELAP algorithm and Differential Evolution algorithm. this study aims to design a facility layout that can minimize the total moment of movement and material handling costs, with a line efficiency rate above 75%. The results of the study indicate a decrease in the total moment of movement from 11.656,58 m/month to 9.166 m/month using the CORELAP algorithm and 10.240,41 m/month using the Differential Evolution algorithm. Material handling costs also decreased from Rp.36.975.708/month to Rp. 28.311.226/month using the CORELAP algorithm and Rp. 30.749.692/month using the Differential Evolution algorithm. By comparing the total moment of movement and material handling costs int the actual layout, the CORELAP algorithm layout and the Differential Evolution algorithm layout, the layout using the CORELAP algorithm is the chosen proposed layout. The Line Efficiency Rate calculation for the chosen proposed layout is 81,68%, so it can be said to be an efficient facility layout.