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All Journal BULLET : Jurnal Multidisiplin Ilmu
Harry Prayoga Setyawan
Politeknik Negeri Bandung
Humanities Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing

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Rancang Bangun Mesin Pencacah Untuk Pengolahan Limbah Pertanian Pasca Panen Harry Prayoga Setyawan
BULLET : Jurnal Multidisiplin Ilmu Vol. 4 No. 6 (2025): BULLET : Jurnal Multidisiplin Ilmu (INPRESS)
Publisher : CV. Multi Kreasi Media

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Abstract

The agricultural sector faces significant challenges in managing abundant post-harvest residues that have not been optimally utilized. This study aims to design and develop a hammer mill-type agricultural waste shredder with a target capacity of 100 kg/hr to support farmer mobility in local agroclimatic regions. The methodology encompasses 3D model design, technical calculation analysis, and independent manufacturing using mild steel materials. Technical analysis results indicate a design power of 6.72 kW with a torque of 35,653.3 N-mm, powered by a 7.5 HP gasoline engine at 1,800 RPM. Functional testing on rice straw and corn stalks demonstrated operational stability with an actual production capacity reaching ±99.7 kg/hr. A slight mass reduction of approximately 3.5% in the final output was attributed to moisture evaporation caused by mechanical heat during the shredding process. This innovation provides a practical solution for farmer groups in accelerating organic decomposition and improving the efficiency of livestock feed provision.
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