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All Journal Journal mechanical and manufacture technology (JMMT) IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Irsyadul Ibad, Mochamad
Unknown Affiliation
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PENINGKATAN EFEKTIVITAS PRODUKSI MELALUI EVALUASI OVERALL EQUIPMENT EFFECTIVENESS DAN STRATEGI PREVENTIVE MAINTENANCE PADA MESIN THERMOFORMING MIKA PLASTIK Irsyadul Ibad, Mochamad; Bashori, Hasan
JMMT Vol 6 No 2 (2025)
Publisher : Prodi Teknik Mesin Universitas Yudharta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35891/nqqyvv18

Abstract

Penelitian ini bertujuan mengevaluasi efektivitas program preventive maintenance dalam menurunkan jumlah produk cacat pada proses produksi mika plastik tray berukuran 120×65 mm menggunakan mesin thermoforming di PT Trass Anugrah Makmur. Permasalahan tingginya cacat produksi membutuhkan analisis menyeluruh terhadap kinerja mesin dan implementasi pemeliharaan yang lebih terukur. Metode penelitian meliputi pengamatan langsung, wawancara dengan operator dan teknisi, serta pengumpulan data produksi selama kegiatan magang. Kinerja mesin dievaluasi menggunakan parameter OEE (Overall Equipment Effectiveness), MTBF, dan MTTR untuk memberikan gambaran mengenai produktivitas dan keandalan peralatan. Hasil penelitian menunjukkan bahwa nilai OEE mencapai 91,16%, terdiri dari availability 93%, performance 99%, dan quality 99%. Jenis cacat yang dominan meliputi bibir produk tidak rata, produk berjatuhan saat proses operasi, dan bintik pada permukaan, yang dipengaruhi oleh kondisi mesin, keterampilan operator, serta kualitas bahan baku. Temuan ini mengindikasikan bahwa penerapan preventive maintenance secara konsisten berpotensi meningkatkan efisiensi produksi dan menekan tingkat defect. Rekomendasi perbaikan mencakup penjadwalan pemeliharaan yang terstandar, peningkatan kompetensi operator, dan penguatan pengendalian kualitas bahan baku agar keandalan proses produksi dapat terus ditingkatkan.      
Karbon Aktif Berkelanjutan dari Limbah Bonggol Pisang: Karakterisasi dan Kinerja Adsorpsi untuk Limbah Industri Irsyadul Ibad, Mochamad; Bashori, Hasan
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.314

Abstract

This study investigates the use of banana corm waste as a raw material for producing activated carbon for textile wastewater treatment. The objective of the research was to produce activated carbon from banana corms using potassium hydroxide (KOH) and sulfuric acid (H₂SO₄) as activating agents, and to evaluate its adsorption performance on methylene blue dye. The activated carbon was prepared through carbonization at 250°C, followed by chemical activation using KOH and H₂SO₄, washing to neutral pH, and drying. The characterization included moisture content, ash content, iodine adsorption capacity, methylene blue adsorption, and UV-Vis spectrophotometric analysis. The results showed that H₂SO₄-activated carbon exhibited higher methylene blue adsorption capacity compared to KOH-activated carbon, while KOH-activated carbon had lower ash content. Overall, the activated carbon derived from banana corms met the quality standards for activated carbon in terms of moisture, ash, and iodine adsorption. These findings indicate that banana corm-based activated carbon has potential as an eco-friendly, effective adsorbent for removing dye pollutants from textile wastewater.
Co-Authors Hasan Bashori