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All Journal Jurnal Konversi Energi dan Manufaktur AMMA : Jurnal Pengabdian Masyarakat
Fauzi Widyawati
Politeknik Negeri Bandung
Aerospace Engineering Humanities Automotive Engineering Chemistry Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing

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Pembinaan Dan Penerapan Mesin Pencacah Limbah Pertanian Bagi Kelompok Petani Di Kab. Rejang Lebong Harry Prayoga Setyawan; Fauzi Widyawati; Apri Setiawan; Hanni Maksum
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 12 : Januari (2026): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

The agricultural sector in Babakan Baru Village faces significant challenges in managing crop residues, which are traditionally burned, leading to environmental pollution. This Community Service (PkM) program implements Appropriate Technology (TTG) through an agricultural waste shredding machine to enhance farmers' productivity and self-sufficiency. The methodology involves partner coordination, CAD-based design, manufacturing, technical assistance, and operational training. The project successfully developed a shredder unit with a 100 kg/hour capacity powered by a 7.5 HP gasoline engine. This implementation delivers transformative impacts: technically, it increases the efficiency of converting waste into compost raw materials, while economically, it reduces dependence on commercial chemical fertilizers. Furthermore, the training improved the farmer groups' human resource capacity regarding machine maintenance and Occupational Health and Safety (OHS) procedures. Overall, the program fosters sustainable agricultural modernization that is environmentally friendly and economically beneficial in Rejang Lebong Regency.
Effectiveness of Epoxy Coating on Metal Surfaces of NEW773CAT Heavy Equipment Units Agus Subeno; Angga Setiawan; Toni Okviyanto; Herlin Sumarna; Dibyo Setiawan; Fauzi Widyawati
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 1 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.1.6

Abstract

This study investigates the effectiveness of the epoxy coating system on NEW773CAT heavy equipment unit operating in a mining environment. The research primarily focuses on the influence of surface preparation methods, dry film thickness (DFT), and coating type on corrosion resistance and adhesion strength. Field case studies, thickness measurements, and visual inspections were employed to assess the performance of coating system. The results reveal that average coating thickness of 396 μm significantly exceeds the minimum ISO 12944 category C5-I standard, which specifies a DFT of 320-400 μm for high corrosivity environments. The surface preparation process using high-pressure cleaning and power tool cleaning (ST 3.0) was found to produce an ideal substrate for epoxy coating application. The use of high-built epoxy mastic as the primer and Aliphatic Polyurethane as the top coat demonstrated excellent corrosion protection and optimal interlayer adhesion. The spray application technique resulted in a uniform coating with no visible defects. This study emphasizes the importance of combining effective surface preparation and precise coating specifications to ensure long-term protection of metal surfaces in harsh environments. The findings suggest that epoxy coating systems, when correctly applied and prepared, can provide robust protection against corrosion, extending the service life of heavy equipment exposed to aggressive conditions like those found in mining operations.
Co-Authors Agus Subeno Angga Setiawan Apri Setiawan Hanni Maksum Harry Prayoga Setyawan Herlin Sumarna setiawan, Dibyo Toni Okviyanto