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All Journal Serambi Engineering Jurnal Keilmuan dan Aplikasi Teknologi Industri
Rabbani Sumitra, Naufal
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Computer Science & IT Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Perancangan Minimum-Maximum Level Stok Material Consumable APD Berdasarkan Data Historis di PT XYZ Rabbani Sumitra, Naufal; Hapid Maksum, Apid; Nugraha, Billy
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol. 25 No. 1 (2025): Regular Issue
Publisher : SEKOLAH TINGGI TEKNOLOGI INDUSTRI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/gajjxn73

Abstract

Pengelolaan persediaan material consumable seperti Alat Pelindung Diri (APD) memiliki peran penting dalam mendukung kelancaran proses produksi, terutama dalam industri otomotif yang memiliki kebutuhan operasional tinggi. Penelitian ini bertujuan untuk merancang standar Level Stock material APD dengan pendekatan kuantitatif menggunakan metode minimum-maximum stock level. Pendekatan ini mengacu pada data penggunaan aktual, kedatangan barang, serta lead time pengiriman. Lima Item APD dipilih sebagai sampel utama untuk dianalisis, dan hasilnya dijadikan dasar dalam penyusunan standar Level Stock yang optimal. Perhitungan meliputi kebutuhan harian rata-rata, fluktuasi pemakaian dan kedatangan, buffer stock, serta safety stock. Hasil simulasi menunjukkan bahwa kelima Item berada dalam batas Level Stock yang ditentukan tanpa mengalami stockout atau overstock. Perancangan standar Level Stock baru berdasarkan data historis dan simulasi menghasilkan efisiensi biaya penyimpanan dengan penghematan maksimal sebesar Rp22.484.013. Dengan demikian, penerapan metode minimum-maximum stock level berbasis data historis terbukti efektif dalam meningkatkan akurasi pengendalian persediaan, mengurangi potensi pemborosan, serta meningkatkan efisiensi operasional di lingkungan industri manufaktur.
Review of Problem Tooling Breakdown Fixes at the Op10 Part Panel Anniversary, RR W/House Inn, RR L/R (RH) at Pt. Summit Adyawinsa Indonesia Tiara Wijaya, Elika; Herwanto, Dene; Rabbani Sumitra, Naufal
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Anniversary damage in the stamping process is a critical problem that can affect product quality and hinder smooth production in the automotive industry. This study aims to identify the main cause of damage to the OP10 Anniversary of the RR W/House Inn RR L/R (RH) at PT. Adyawinsa Indonesia Summit and formulate the right improvement steps to reduce the frequency of breakdowns. The research uses a case study approach through direct observation, structured interviews with Maintenance Tooling personnel, as well as analysis of OEE data and damage history for the period June–December 2024. The data were analyzed using the Root Cause Analysis method (Fishbone Diagram and 5 Why) as well as technical evaluation on the insert dies component. The results showed that scratch defects  in parts were caused by damage to the blank holder insert in the form of pin holes and peeling hardchrome layers, which was exacerbated by less effective preventive maintenance and technical inspections that were only visual. This condition caused 39 breakdown events with a total downtime of 41 hours. Repair recommendations are carried out through insert redesign, precision machining, hardening process, re-hard chrome, and improvement of inspection flow and tooling monitoring. In conclusion, improving the quality of inserts and strengthening the preventive maintenance system has been proven to be able to reduce the potential for repeated damage and increase the reliability of the stamping process.
Co-Authors Dene Herwanto Hapid Maksum, Apid Nugraha, Billy Tiara Wijaya, Elika