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All Journal Unistek: Jurnal Pendidikan dan Aplikasi Industri Industrika : Jurnal Ilmiah Teknik Industri International Journal of Oil Palm
Nadiahun Nasywa
Universitas Singaperbangsa Karawang
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering

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Pengaruh Implementasi TQM Terhadap Penurunan Tingkat Cacat Produk Di PT. Ciptaunggul Karya Abadi Nadiahun Nasywa; Apid Hapid Maksum; Wahyudin; Billy Nugraha; Seka Pertiwi
UNISTEK Vol. 12 No. 2 (2026): Agustus 2025 - Februari 2026
Publisher : UNIVERSITAS ISLAM SYEKH YUSUF TANGERANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33592/unistek.v12i2.8296

Abstract

Ciptaunggul Karya Abadi is a private company engaged in the Manufacturing of Metal Stamping Parts, Tools and Dies. In the face of fierce industry competition, the consistency of product quality is a determining factor for competitiveness. The high rate of product defects is a major concern for companies as it impacts cost, efficiency, and customer satisfaction. This study aims to analyze the effect of the implementation of Total Quality Management (TQM) on reducing the level of product defects. The method used was a case study with data collection through direct observation, interviews with stakeholders, and document analysis over a period of four months. The results show that the application of TQM elements such as customer focus, obsession with quality, scientific approach, long-term commitment, teamwork, continuous system improvement, education and training, controlled freedom, unity of purpose, and employee involvement and empowerment have a significant effect in reducing product defects. The implementation of TQM is also able to create a better quality culture in the production environment. Based on the results of the analysis, it can be concluded that PT. Ciptaunggul Karya Abadi has implemented all elements of Total Quality Management (TQM) as an effort to improve product quality and reduce the level of defects, but the implementation is not fully optimal. Therefore, it can also be concluded that Total Quality Management (TQM) is an effective strategic approach to improve product quality in a sustainable manner.
Valorization of Palm Oil Mill Effluent (POME) for Renewable Energy: A Systematic Review on Biogas Potential and Policy Implications in Indonesia Billy Nugraha; Nadiahun Nasywa; Melodi Laora Putri; Soma Satria; Yoga Ulya Mubarok
International Journal of Oil Palm Vol. 9 No. 1 (2026)
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35876/ijop.v9i1.159

Abstract

Palm Oil Mill Effluent (POME) represents one of the most significant by-products of the palm oil industry, often perceived as a major environmental pollutant due to its high organic load and greenhouse gas (GHG) emissions. However, its valorization as a biogas source offers a promising pathway toward sustainable energy transition in Indonesia. This study presents a systematic literature review (SLR) to evaluate the biogas potential of POME and to explore policy frameworks that support its implementation in the Indonesian context. The review was conducted based on PRISMA guidelines by screening peer-reviewed articles from 2013 to 2024 using databases such as Scopus, ScienceDirect, and Google Scholar. A total of 38 relevant studies were analyzed, covering techno-economic feasibility, conversion efficiency, environmental impacts, and regulatory perspectives. Findings indicate that POME has a high potential for biogas production, with methane yields ranging between 15–28 m³ per m³ of POME under optimized anaerobic digestion processes. Furthermore, several pilot-scale and industrial implementations in Sumatra and Kalimantan demonstrate technical viability. However, challenges remain in terms of infrastructure investment, fragmented policies, and lack of integration with national energy targets. Current regulations, including the Presidential Regulation on Renewable Energy and Ministry of Energy’s roadmap, provide a partial foundation, but clearer incentives and decentralized support mechanisms are needed. This review highlights the urgency of aligning technological potential with comprehensive policy support to accelerate the adoption of POME-to-biogas initiatives, especially among small and medium-scale palm oil mills. The valorization of POME not only contributes to Indonesia’s renewable energy mix but also addresses environmental and socio-economic concerns within the palm oil sector.
Analisis Pengendalian Kualitas Arm Rear Brake KWBF pada Industri Otomotif Roda Dua dengan Pendekatan Seven Tools Seka Pertiwi; Sukanta Sukanta; Nadiahun Nasywa
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/r3127g71

Abstract

In the two-wheeled automotive manufacturing industry, product quality has a significant influence on customer confidence as well as production efficiency. Therefore, this research was carried out to apply the Seven Tools method to provide effective solutions in quality control, so that the production process can run smoothly and meet the set quality standards. This study aims to analyze the quality control of KWBF arm rear brake products using the Seven Tools method. The three types of defects found are scratch material, rust, and blank minus. The main causes of such defects include human, machine, method, material, and environmental factors. As an improvement effort, the researcher suggests regular training for machine operators, regular machine maintenance, selection of raw materials before production, and monitoring of environmental conditions during the production process. The application of the Seven Tools method has been proven to help companies systematically detect defects and provide more targeted repair solutions to improve product quality. Keywords: Product Defect, Quality Control, Seven Tools
Co-Authors Apid Hapid Maksum Billy Nugraha Billy Nugraha Melodi Laora Putri Seka Pertiwi Seka Pertiwi Soma Satria Sukanta Wahyudin Yoga Ulya Mubarok