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All Journal Rotasi FLYWHEEL : Jurnal Teknik Mesin Untirta Jurnal Rekayasa Mesin Jurnal Penelitian Pertanian Terapan JTT (Jurnal Teknologi Terpadu) JTM-ITI (Jurnal Teknik Mesin ITI) Machine : Jurnal Teknik Mesin JURNAL KAJIAN TEKNIK MESIN Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Jurnal Pengabdian Teknologi, Ekonomi dan Humaniora Jurnal Sains & Teknologi Fakultas Teknik Universitas Darma Persada Metalik: Jurnal Manufaktur, Energi, Material Teknik
Siregar, Rolan
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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Design and Development of a Vertical-Shaft Organic Waste Chopper Machine with a Top-Mounted Agitator Susanto, Herry; Chan, Yefri; Pratama, Juan; Siregar, Rolan; Ferdiansyah, Rio; Mustofa, Hidayat; Mubarok, Muhammad Fauzan
Jurnal Rekayasa Mesin Vol. 21 No. 1 (2026): Volume 21, Nomor 1, April 2026
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v21i1.7431

Abstract

Conventional organic waste chopping machines predominantly utilize horizontal shaft configurations, which are highly susceptible to asymmetric load distribution and present ergonomic challenges during maintenance. As an innovative solution, this study presents the conceptual design of a vertical-shaft chopping machine integrated with a hydraulic-actuated top-head system to enhance the efficiency of particle size reduction. The scope of this research is strictly confined to theoretical mathematical modeling and numerical simulations. The design process complies with the ASME B106.1M standard for transmission shafts and EN 13683 for operational safety parameters, excluding experimental fabrication. A comprehensive analysis was conducted on three primary materials—Mild Steel (MS), Stainless Steel 304 (SS 304), and Stainless Steel 316L (SS 316L)—under fluctuating waste loads ranging from 10 kg to 35 kg. The analytical results demonstrate several crucial findings: the minimum safe shaft diameter ranges from 16 mm (utilizing SS 316L at a 10 kg load) to 28 mm (utilizing MS and SS 304 at a 35 kg load). Furthermore, the agitator's power requirement exhibits a strictly linear increase corresponding to the applied load (from 1.34 kW to 4.68 kW), whereas the hydraulic system operates efficiently with a constant power profile of 0.25 kW. Overall, the vertical shaft configuration significantly promotes symmetrical force distribution, while the hydraulic system ensures safe and immediate access to the chopping chamber. The proposed design demonstrates substantial structural, operational, and ergonomic advantages, establishing a robust theoretical foundation for future development and experimental fabrication.
Co-Authors ADE SUPRIATNA Ade Supriatna Alvi Akhsan Maulana Asy'ari Firdaus Asyari Darius Atik Kurnianto Bagus Tri Mahardika Budiarjo, Wisnu Didik , Didik Didik Sugiyanto Dwiki , Dwiki Dwiki Novandi Erwin Eva Novianti Fandikurnia, Ade Ferdiansyah, Rio Firdaus, Asy'ari Hafizh Guntur Jabbaruladli Halus Satriawan Herry Susanto Herry Susanto Husen Asbanu Iwan Susanto Juan Pratama Mubarok, Muhammad Fauzan Mustofa, Hidayat Saurnida Siahaan Asianna , Adriani Siahaan, Herbert Hasudungan Susanto, Herry - Tatun Hayatun Nufus Todaro, Muhammad Toha Abidin Trisna Ardi Wiradinata yefri chan Yendi Esye