Rancangan Usulan Optimalisasi Kuningan Melalui Aliran Material Sirkular pada Produksi Fitting PT XYZ

Abstract

Kuningan merupakan salah satu bahan baku utama dalam produksi fitting di industri manufaktur sanitasi, termasuk di PT XYZ. Proses produksi menghasilkan limbah berupa scrap kuningan yang belum dimanfaatkan secara optimal. Penelitian ini bertujuan untuk mengusulkan rancangan optimalisasi pemanfaatan scrap kuningan melalui pendekatan aliran material sirkular. Metode yang digunakan mencakup analisis Material Flow Analysis (MFA), pendekatan ekonomi sirkular, serta analisis biaya-manfaat terhadap rancangan sistem pemulihan kuningan. Hasil penelitian menunjukkan bahwa usulan sistem recovery melalui tahapan sentrifugasi dapat mengurangi limbah dan menghasilkan efisiensi biaya produksi. Analisis keekonomian menunjukkan rancangan ini layak secara finansial dengan nilai Net Present Value (NPV) Rp52.785.433.000,00. Implementasi aliran material sirkular pada proses produksi diharapkan mendukung praktik produksi berkelanjutan serta meningkatkan efisiensi pemanfaatan material di PT XYZ.

Brass is one of the main raw materials used in the fitting production process in the sanitary manufacturing industry, including at PT XYZ. The production process generates brass scrap, which has not been optimally utilized. This project aims to propose an optimization design for the utilization of brass scrap through a circular material flow approach. The method includes Material Flow Analysis (MFA), circular economy principles, and cost-benefit analysis of the proposed brass recovery system. The results show that the proposed recovery system using centrifugation stages can reduce waste and improve production cost efficiency. The economic analysis demonstrates financial feasibility with a Rp52.785.433.000,00 Net Present Value (NPV). The implementation of circular material flow in the production process is expected to support sustainable manufacturing practices and improve material utilization efficiency at PT XYZ.