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All Journal Jurnal Ilmiah Poli Rekayasa Teknomekanik Jurnal Pengabdian kepada Masyarakat Nusantara
Priyanda, Eko
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Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Mechanical Engineering Social Sciences

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Lean six sigma methodology for waste reduction in ship production Priyanda, Eko; Sutanto, Agus
Teknomekanik Vol. 6 No. 1 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (613.103 KB) | DOI: 10.24036/teknomekanik.v6i1.24172

Abstract

This study was conducted to reduce the amount of waste in ship production and assembly processes at PT ES. Several wastes during the ship production process result in the actual ship completion time being longer than the planning time set by the process planner. Therefore, accurate analysis is required to reduce waste. In this way, contributing factors can be identified, and more effective solutions can be obtained to reduce waste. This is done by implementing the Lean Six Sigma method (DMAIC processes) and several tools and methods, such as Pareto and fishbone diagrams and the FMEA method. The results show that the most critical potential root cause affecting production delays comes from the potential causes with the highest Risk Priority Number (RPN) value. The causes are welders who do not understand the WPS (RPN 432), unstable welding transformers (RPN 432), and unproductive loader movements (RPN 384). The recapitulation of welding defects produced in the production process at a sigma level of 2.48. Recommendations for the three potential critical wastes were made and planned for implementation. The estimated average RPN impairment for the three critical root causes was 32.3%. This condition will impact the total ship production time, which is 6% shorter (equivalent to 14 days) than the previous production time with a new sigma level of 2.55.
PENINGKATAN KINERJA MESIN PRESS BAGLOG JAMUR TIRAM MELALUI MODIFIKASI SISTEM KONTROL TEKANAN SILINDER MENGGUNAKAN MAGNET CLUTCH -, Junaidi; Rahman, Riki; Anderson, Sir; Priyanda, Eko; Safitri, Ramadani
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 Effiandi, Nota; Nasirwan, Nasirwan; Nusyirwan, Nusyirwan; Priyanda, Eko; Salsabila, Syafira; Fadilah, Alif Rifqi; Rahman, Riki
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 7 No. 1 (2026): Edisi Januari - Maret IN PROGRESS
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar

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 Fadilah, Alif Rifqi Junaidi Junaidi Nasirwan Nasirwan Nota Effiandi Nusyirwan Nusyirwan Riki Rahman Safitri, Ramadani Salsabila, Syafira Sir Anderson Syamsiar, Syamsiar