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Simulasi sistem produksi injection molding untuk menurunkan produk cacat pada komponen plastik Tri Ngudi Wiyatno; Indra Setiawan; Opie Oktavia Yuliani; Wiwi Wiliyanti Fadillah; Junus Parulian Gultom
JENIUS : Jurnal Terapan Teknik Industri Vol 7 No 1 (2026): JENIUS: Jurnal Terapan Teknik Industri
Publisher : LPPMPK - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jenius.v7i1.2215

Abstract

Proses injection molding merupakan salah satu metode utama dalam industri manufaktur plastik yang menuntut tingkat kualitas produk yang tinggi dan konsistensi proses yang stabil. Tingginya tingkat produk cacat pada proses injection molding dapat menyebabkan pemborosan material, peningkatan biaya produksi, serta penurunan efisiensi sistem produksi. Penelitian ini bertujuan untuk menganalisis dan menurunkan tingkat produk cacat pada komponen plastik melalui pendekatan simulasi sistem produksi. Metode penelitian yang digunakan adalah simulasi sistem berbasis pendekatan kuantitatif dengan memodelkan alur produksi injection molding sesuai dengan kondisi aktual di lapangan. Data diperoleh melalui observasi langsung, pengukuran waktu proses, serta data historis produksi dan kualitas. Model simulasi dikembangkan, diverifikasi, dan divalidasi sebelum dilakukan eksperimen dengan beberapa skenario perbaikan. Hasil penelitian menunjukkan bahwa penerapan skenario perbaikan berupa penyesuaian waktu siklus, pengaturan aliran material, dan keseimbangan beban kerja mesin mampu menurunkan tingkat produk cacat dari 6,8% menjadi 3,9%, serta meningkatkan output dan utilisasi mesin. Penelitian ini membuktikan bahwa simulasi sistem produksi dapat digunakan sebagai alat bantu pengambilan keputusan yang efektif dalam pengendalian kualitas dan peningkatan kinerja proses injection molding secara berkelanjutan.
Design and performance analysis of a stick making machine to support the sustainability of palm oil leaf waste Wahyudi; Indra Setiawan; Eduardus Dimas Arya Sadewa; Fattiya Hamada Sakti Isa Putri; Muhammad Rifa'i; Ibnu Ferianto; Nurani Adristi Bunga Nirvana; Gusti Ivan Indie Mahardika
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 13 No 1 (2026): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK- Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v13i1.2014

Abstract

The palm oil industry is a key sector in Indonesia, yet it produces significant amounts of leaf waste, which has been underutilized and has the potential to pollute the environment. The fundamental problem currently lies in the largely manual process of utilizing leaf waste, making it inefficient for large-scale production. This research aims to design a machine for making palm leaf stick-making from palm leaf waste to support sustainability principles. The method used is Reverse Engineering to analyze and improve the existing machine design, with a focus on the function, capacity, and safety aspects. This data collection was done through field surveys and Focus Group Discussions (FGD). The expected result of this research is a more efficient palm leaf and frond separating machine design, with a target performance of 1.5 kg per 10 minutes (9 kg/hour). The design's advantage lies in the ease of maintenance, especially in removing and replacing shaft and chopping blade components. This research can answer the needs of industry and society for environmentally friendly appropriate technology, thus supporting sustainable waste management. The palm oil industry is a cornerstone of Indonesia's economy, yet it generates substantial amounts of leaf waste that remain largely underutilized, presenting a significant environmental management challenge. The fundamental problem lies in the reliance on manual processing methods, which are inefficient and unsuitable for large-scale waste valorization. This study aimed to design and analyze a stick machine to process palm oil leaf waste, thereby supporting sustainability principles and circular economy initiatives. The research methodology applied was Reverse Engineering, which was used to systematically evaluate and improve upon an existing machine design, with specific attention to enhancing function, operational capacity, and safety. Data collection was conducted through comprehensive field surveys and Focus Group Discussions (FGD) with stakeholders to ensure the design met practical needs. The resulting prototype, powered by a 3 HP electric motor, demonstrated a calculated processing capacity of 9 kg per hour (equivalent to 1.5 kg per 10 minutes). Structural analysis confirmed the machine's robustness, with a calculated shaft safety factor of 3.48, ensuring reliability under operational loads. The design prioritizes ease of maintenance, featuring a mechanism that simplifies the removal and replacement of the shaft and chopping blade components. Furthermore, the machine's operation is environmentally friendly, contributing to waste reduction. In conclusion, this research successfully developed a feasible, efficient, and sustainable technical solution for managing palm oil leaf waste, offering a valuable appropriate technology for both industry and local communities.