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All Journal Turbo : Jurnal Program Studi Teknik Mesin International Journal of Engineering, Science and Information Technology
Harjuma, Harjuma
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Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Development of Plastic Shredder Technology to Support Plastic Waste Reduction Harjuma, Harjuma; Tahir, Abdul; Sirama, Sirama; Aswar, Aswar
International Journal of Engineering, Science and Information Technology Vol 5, No 1 (2025)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i1.643

Abstract

The plastic waste problem in Indonesia has reached a severe level. Data from the National Waste Management Information System shows that Indonesia produces around 17 million tons of plastic waste yearly. However, only approximately 66.47% of this plastic waste undergoes recycling, with the remainder ending up in landfills or polluting the sea. This condition places Indonesia in second place in the world after China in terms of the amount of plastic waste produced, making it a country with a plastic waste emergency. This article discusses the development of plastic recycling machine technology as a solution to overcome the plastic waste problem in Indonesia. With a production of around 17 million tons of plastic waste per year, Indonesia faces significant challenges in plastic waste management. Low efficiency often constrains the effectiveness of plastic recycling as a solution. Therefore, this study aims to design and improve the efficiency of a plastic shredder machine. This machine uses specially designed rotating blade technology to produce high-precision plastic flakes. Additionally, we have updated the transmission system to reduce vibration and implemented other innovations to enhance the machine's capacity to shred various types of plastic. We expect this machine to decrease greenhouse gas emissions from the recycling process and lower operational costs. This study shows that the developed plastic shredder machine can work effectively and efficiently, meeting the research objectives of producing plastic flakes quickly. Thus, we expect this machine to significantly reduce plastic waste in Indonesia and support environmental conservation efforts.
Kajian Optimasi Material Pengganti Berbahan Baja Karbon AISI 1018 Pada Perbaikan Planetary Gear Mesin Mixer UMKM An-Nur Aswar, Aswar; Naim, Muhammad; Harjuma, Harjuma; Parekke, Simon
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.4083

Abstract

Penelitian ini bertujuan untuk mengatasi masalah kerusakan yang terjadi pada komponen roda gigi mesin pengaduk (mixer) milik UMKM An-Nur di Kecamatan Towuti melalui pendekatan teknologi. Hasil investigasi awal menunjukkan bahwa material asli dari besi tuang memiliki keterbatasan kekuatan dan distribusi kekerasan yang tidak merata, menginisiasi kerusakan dini dan retakan pada profil gigi. Untuk mengatasi masalah tersebut, baja karbon rendah (AISI 1018) dipilih sebagai material pengganti karena aspek teknis, ketersediaan, efisiensi biaya, dan kemudahan dalam proses permesinan. Roda gigi berbahan baja karbon dimanufaktur meliputi proses pemotongan, pembubutan, pembentukan profil gigi, dan perlakuan panas, diikuti dengan pemasangan roda gigi ke dalam gearbox. Hasil pengujian kekerasan menujukkan peningkatan kekerasan sebsedar 37,9 HRC pada roda gigi pengganti berbahan baja karbon (AISI 1018) yang dikeraskan diperoleh kekuatan meningkat signifikan dari roda gigi mula dengan kekerasan 19,3 HRC yang berbahan besi tuang. Hasil rakitan diuji fungsi menunjukkan kinerja yang yang baik pada variasi putaran. Penelitian ini memberikan solusi untuk meningkatkan performa mixer dan memperpanjang umur pakai komponen planetary gear pada mesin, menawarkan model perbaikan bagi industri kecil lainnya dengan tantangan yang serupa.
Co-Authors Aswar Aswar Naim, Muhammad Parekke, Simon Sirama, Sirama Tahir, Abdul