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All Journal Jurnal Ilmiah Poli Rekayasa Jurnal Pengabdian kepada Masyarakat Nusantara
Riki Rahman
Politeknik Negeri Padang
Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Social Sciences

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PENINGKATAN KINERJA MESIN PRESS BAGLOG JAMUR TIRAM MELALUI MODIFIKASI SISTEM KONTROL TEKANAN SILINDER MENGGUNAKAN MAGNET CLUTCH Junaidi -; Riki Rahman; Sir Anderson; Eko Priyanda; Ramadani Safitri
Jurnal Ilmiah Poli Rekayasa Vol 21, No 1 (2025): Oktober
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.21.1.422

Abstract

Manual and semi-mechanical baglog production for oyster mushrooms in Indonesia, particularly in Padang West Sumatra, has suffered from low capacity, inconsistent quality, and operator fatigue. In this study evaluated performance improvements of a baglog pressing machine through modification of magnetic clutch integration and cylinder pressure control mechanism. The modification included installing a magnet clutch with supporting components (bushing, plate disk, clutch housing), motor and gearbox shafts, redesign of the pressing plate, and dual-opening chamber. Several technique was employed such as reducer speeds (30 to 90 rpm) and threaded rod adjustments distance (1.5 to 6.5 cm). Production capacity, cycle time, efficiency, and baglog density were investigated. Based on results, the  production capacity increased from approximately ±20 baglogs/hour (manually)to 120–270 baglogs/hour after modification, while the pressing cycle time decreased to as low as 13.33 s/baglog. The baglog density increased from about ±0.65 g/cm³ to ~0.709–0.900 g/cm³, with 80–90% process efficiency. Therefore, the magnetic clutch enabled precise engagement/disengagement control, enhancing safety and cycle precision. Overall, the modified machine provided an efficient for improving productivity, quality, and ergonomics for for SME’s sector mushroom production.
Pelatihan Teknik Pengoperasian Mesin Milling Vertical untuk Masyarakat Nota Effiandi; Nasirwan Nasirwan; Nusyirwan Nusyirwan; Eko Priyanda; Syafira Salsabila; Alif Rifqi Fadilah; Riki Rahman
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 7 No. 1 (2026): Edisi Januari - April
Publisher : Lembaga Dongan Dosen

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Abstract

Pengembangan kompetensi permesinan pada sektor industri kecil dan menengah (IKM) merupakan langkah strategis dalam meningkatkan produktivitas dan daya saing industri nasional, khususnya bagi peserta didik tingkat menengah dan vokasi. Namun, keterbatasan fasilitas praktik dan metode pelatihan yang masih bersifat demonstratif menyebabkan rendahnya penguasaan keterampilan praktis. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan keterampilan dasar pengoperasian mesin milling vertical melalui pelatihan berbasis praktik langsung (hands-on training) serta mengevaluasi efektivitasnya secara kuantitatif. Kegiatan melibatkan 12 peserta yang terdiri atas 2 peserta MA, 6 peserta SMA, dan 4 peserta SMK. Metode pelatihan mengacu pada job sheet industri dan SOP keselamatan kerja. Evaluasi dilakukan melalui penilaian kualitas benda kerja hasil milling meliputi akurasi dimensi, ketepatan proses, kepatuhan K3, dan kerapian hasil. Hasil menunjukkan bahwa 83,3% peserta mampu menghasilkan benda kerja dengan deviasi dimensi ≤ ±0,5 mm dan tingkat kepatuhan K3 sebesar 91,7%. Temuan ini menunjukkan bahwa metode hands-on training efektif dalam meningkatkan keterampilan pengoperasian mesin milling vertical. Program ini diharapkan dapat menjadi model berkelanjutan untuk penguatan kapasitas pendidikan vokasi dan peningkatan kompetensi teknis, khususnya di sektor IKM
Co-Authors Alif Rifqi Fadilah Eko Priyanda Junaidi - Nasirwan Nasirwan Nota Effiandi Nusyirwan Nusyirwan Ramadani Safitri Sir Anderson Syafira Salsabila