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All Journal Industrika : Jurnal Ilmiah Teknik Industri
Aksyal Abi Maulana
Universitas Singaperbangsa Karawang
Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering

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Reduksi Limbah Kertas dan Kardus di Kabupaten Karawang Menjadi Eko Briket Melalui Usulan Perancangan Mesin Skala Produksi Yamandito Mario Nugroho; Aksyal Abi Maulana; Gading Adithia Famella; Wahyu Fitrianto
Industrika : Jurnal Ilmiah Teknik Industri Vol. 10 No. 3 (2026): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/eq0q5p55

Abstract

The problem of increasing waste generation in Indonesia, particularly in Karawang Regency, poses a serious environmental threat if not properly managed. One sustainable alternative is to utilize paper and cardboard waste as raw materials for eco-briquettes. This study aims to develop eco-briquette products and design a production machine capable of improving the efficiency of non-hazardous waste processing. The research method applied was experimental and engineering design. The experiment was conducted by producing several briquette samples with different compositions of paper, cardboard, and tapioca starch, which were then tested through burn duration and physical performance evaluation. The results showed that briquettes with a composition of 80% cardboard and 20% tapioca starch performed best, with a burn time of 21 minutes. Furthermore, a production system design was proposed, consisting of cutting, mixing, pressing, crushing, second mixing, and molding machines, with a production target of 100 briquettes per day. This design is projected to reduce paper and cardboard waste by approximately 1.197 tons per month. Therefore, this study demonstrates that utilizing non-hazardous waste for eco-briquette production not only provides a solution for waste reduction but also supports economic value and environmental sustainability. Keywords: Briquette, Design, Experiment, Paper, Waste  
Penentuan Komponen Kritis untuk Track Shoe Assy Excavator T200 Menggunakan Metode Analytical Hierarchy Process (AHP) di PT XYZ Aksyal Abi Maulana; Winarno Winarno; Wahyudin Wahyudin; Yamandito Mario Nugroho
Industrika : Jurnal Ilmiah Teknik Industri Vol. 10 No. 4 (2026): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/emt48w17

Abstract

At PT XYZ, the mismatch between Procurement lead time and continuously changing production demand increases the risk of material Procurement delays, which may disrupt the assembly process of the T200 Excavator Track Shoe Assy. This study aims to identify the most critical component that has the potential to cause production delays using the Analytical Hierarchy Process (AHP) method. The evaluation was conducted based on five criteria: Procurement lead time, annual demand, Procurement frequency, usage quantity, and cost. Data were obtained from the company’s internal information system and subjective assessments provided by three experienced Procurement staff. All data were systematically analyzed using AHP to determine the priority weight of each component. The results indicate that the nut component has the highest priority weight among all alternatives, making it the primary component requiring attention in the company’s Procurement planning and strategy. All pairwise comparison matrices achieved a Consistency Ratio below 0.1, indicating that the results are valid and consistent. This study provides a quantitative basis for supporting decision-making in developing an efficient and responsiveProcurement strategy under dynamic production demand. Keywords: AHP, Critical Component, Procurement, SCM
Co-Authors Gading Adithia Famella Wahyu Fitrianto Wahyudin Wahyudin Winarno Winarno Yamandito Mario Nugroho