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All Journal Nusantara of Engineering (NOE) JURNAL RUMPUN MANAJEMEN DAN EKONOMI
Indra Prasetia
Universitas Teknologi Yogyakarta
Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Social Sciences

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ANALISIS KERUSAKAN DAN PERAWATAN MESIN INVESTMEN CASTING MENGGUNAKAN METODE PREVENTIVE MAINTENANCE OPTIMIZATION (PMO) PADA DEPARTEMEN DIE CASTING PT. MITRAMETAL PERKASA Indra Prasetia
JURNAL RUMPUN MANAJEMEN DAN EKONOMI Vol. 3 No. 4 (2026): Juli
Publisher : CV. KAMPUS AKADEMIK PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jrme.v3i4.10713

Abstract

Production machine reliability is a fundamental factor in maintaining operational continuity within the manufacturing industry. PT. Mitrametal Perkasa, specifically in the Die Casting Department, faces challenges due to the high rate of sudden breakdowns in investment casting machines. This condition results in significant downtime and increased operational costs because the current maintenance strategy remains largely reactive. This study aims to analyze machine failure patterns and determine optimal maintenance intervals using the Preventive Maintenance Optimization (PMO) method. Research data were sourced from the 2025 machine maintenance performance reports, analyzed using reliability parameters such as Mean Time To Failure (MTTF) and Mean Time To Repair (MTTR). The results indicate that determining maintenance intervals based on historical data through the PMO approach provides more accurate maintenance schedule recommendations compared to conventional schedules. The implementation of this strategy is expected to enhance machine availability, minimize sudden failures, and optimize long-term maintenance cost efficiency at PT. Mitrametal Perkasa.
Analisis Kerusakan dan Optimalisasi Perawatan Mesin Investment Casting Menggunakan Metode Reability Centered Maintenance (RCM) Indra Prasetia; Ari Zaqi Al-Faritsy
Nusantara of Engineering (NOE) Vol 9 No 02 (2026): Volume 9 Nomor 2 - 2026
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/noe.v9i02.29323

Abstract

Penelitian ini bertujuan untuk mengoptimalkan sistem perawatan pada mesin Investment Casting BD TOYO 350 V4 T di PT. XYZ yang sering mengalami tingginya unplanned downtime pada mesin investment casting akibat strategi perawatan yang bersifat reaktif (corrective maintenance), sehingga mengganggu pasokan komponen ke Departemen Machining. sistem pemeliharaan menggunakan integrasi Preventive Maintenance Optimization (PMO) dan Reliability Centered Maintenance (RCM) berdasarkan data historis MTTF, MTTR, dan matriks FMEA. Hasil analisis menunjukkan komponen Ladle paling kritis dengan MTTF terendah 32,00 jam dan RPN tertinggi 324, diikuti oleh Pump Plunger dengan MTTF 67,55 jam. Melalui RCM Selection Task, dirumuskan strategi proaktif terintegrasi. Aktivitas Condition Directed (CD) didelegasikan secara harian/per shift kepada operator untuk pembersihan kerak sisa aluminium pada Ladle dan Pump Plunger guna mengidentifikasi gejala kegagalan secara dini. Sementara itu, aktivitas Time Directed (TD) direkomendasikan secara rigid untuk teknisi, meliputi kalibrasi sensor limit posisi Ladle setiap interval 32,00 jam kerja, penggantian seal ring Pump Plunger setiap 67,55 jam kerja, serta replasmen elemen filter cartridge Sistem Hidrolik setiap 74,25 jam kerja. Penerapan usulan jadwal preventif proaktif ini terbukti secara teoritis dapat memotong laju degradasi sebelum kerusakan fatal terjadi, mereduksi downtime, serta menjaga kelancaran rantai pasok internal perusahaan
Co-Authors Ari Zaqi Al-Faritsy