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All Journal Jurnal Teknik Mesin
Vian Anugrah
Prodi Teknik Mesin, Fakultas Teknik, Universitas Pamulang
Automotive Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering

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Rancang Bangun Mesin Pencetak Briket Metode Screw Extruder Semi-Otomatis Vian Anugrah; Irwan Aranda
Jurnal Teknik Mesin Vol. 18 No. 2 (2025): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.18.2.1882

Abstract

Global dependence on fossil fuels has driven the search for environmentally friendly alternative energy sources. One promising solution is the utilization of biomass into briquettes as a form of renewable solid fuel. This study aims to design and develop a semi-automatic screw extruder briquette machine intended for Micro, Small, and Medium Enterprises (MSMEs). The machine is designed with a production capacity of 20 kg/hour, using a screw with an outer diameter of 70 mm, shaft diameter of 16 mm, 70 mm pitch, and 460 mm length. Technical calculations show a torque requirement of 31.23 Nm and power of 59.51 W, thus a 0.25 HP electric motor (1400 rpm) was selected. The main materials include stainless steel SS 304 for critical parts such as the hopper, mold, screw chamber, screw blade, and shaft; and ASTM A36 steel for the machine frame. Theoretical analysis indicates a maximum stress of 112.2 MPa, displacement of 0.36 mm, and a safety factor of 2.2. Meanwhile, simulation using Finite Element Analysis (FEA) with SolidWorks 2025 resulted in a maximum stress of 96.14 MPa, displacement of 0.74 mm, and a minimum safety factor of 2.6. These results confirm that the machine design is structurally safe and supports the utilization of biomass-based renewable energy
Co-Authors Irwan Aranda