Usulan Perancangan Ulang Tata Letak Fasilitas Menggunakan Metode Pairwise Exchange dan Algoritma CORELAP pada CV. Chandra Jaya

Abstract

CV. Chandra Jaya is a company engaged in furniture that produces guest chairs, guest tables, and wardrobes. The company has a common problem, namely the company's inability to complete the production target within the specified timeframe. The common problem is the result of an inefficient production trajectory because there is backtracking, by-passing, cross movement, and material movement between stations that are far apart. This problem can be solved by using an improved production floor layout using the Pairwise Exchange Method and CORELAP Algorithm. This research aims to design a production floor layout that can minimize distance, total displacement moments, and material handling costs, with a line efficiency rate above 75%. The results of this study show a decrease in the total displacement distance on the production floor from 297.70 meters to 263.58 meters using the Pairwise Exchange method and by 231.24 meters using the CORELAP Algorithm. The total moment of movement on the production floor also shows a decrease from 21,197.23 meters / month to 17,776.44 meters / month using the Pairwise Exchange method and by 15,820.93 meters / month using the CORELAP Algorithm. Material Handling Costs on the production floor also decreased from Rp 2,500,000/month to Rp 2,096,553/month using the Pairwise Exchange method and by Rp 1,865,920/month using the CORELAP Algorithm. The selected layout using the CORELAP Algorithm with a line efficiency rate of 81.94. Based on the selected proposed layout, the number of products previously increased from 24 units to 32 units and there was an increase in profits over a 5-year period of Rp 518,957,097. The proposed facility layout is able to increase productivity as seen through an increase in the achievement of production targets by 38.93% for guest chair products, 43.53% for guest table products and 54.84% for wardrobe products.