Claim Missing Document
Check
Articles

Found 2 Documents
Search

Perancangan Pemeliharaan Preventif Pada Sistem Kelistrikan Agitator Untuk Tangki Seed Precipitation Di PT Borneo Alumina Indonesia Putra Rahmatullah; Muh Yusan Naim; Arif Jaya
Jurnal LOGITECH Logika Technology Vol. 8 No. 1 (2025)
Publisher : Program Studi Teknik Elektro Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64109/4ydm4s77

Abstract

PT. Borneo Alumina Indonesia merupakan perusahaan pengolahan bauksit menjadi alumina, di mana keandalan sistem agitator pada tangki seed precipitation sangat penting untuk kelancaran produksi. Kegagalan sistem ini dapat menyebabkan downtime signifikan, berdampak pada efisiensi produksi dan kerugian operasional. Penelitian ini bertujuan merancang jadwal pemeliharaan preventif guna meningkatkan keandalan sistem kelistrikan agitator. Metode yang digunakan meliputi Failure Mode and Effect Analysis (FMEA), Risk Based Maintenance (RBM), dan Reliability Centered Maintenance (RCM) yang didukung simulasi Weibull. Pendekatan ini bertujuan untuk meningkatkan keandalan sistem serta mengoptimalkan produktivitas operasional di fasilitas produksi. Hasil penelitian menunjukkan bahwa rancangan pemeliharaan preventif yang diusulkan mampu meningkatkan reliabilitas sistem hingga 113% dibandingkan tanpa pemeliharaan. Jadwal yang diterapkan mencakup inspeksi rutin harian, penggantian komponen kritis dalam interval satu hingga tiga tahun, serta pengujian isolasi motor saat overhaul tahunan. Implementasi strategi ini berhasil menekan downtime tahunan menjadi 3,84%, memungkinkan produksi alumina mencapai 96% dari kapasitas teoritis sebesar 1.000.000 ton per tahun.
Design of Preventive Maintenance on the Electrical System of Agitator for Seed Precipitation Tank at PT Borneo Alumina Indonesia Muhammaad Yusan Naim; Arif Jaya; Putra Rahmatullah
International Journal of Mechanical, Electrical and Civil Engineering Vol. 3 No. 3 (2026): July: International Journal of Mechanical, Electrical and Civil Engineering.
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijmecie.v3i3.414

Abstract

PT Borneo Alumina Indonesia is a company engaged in processing bauxite into alumina, where the reliability of the agitator system in the seed precipitation tank plays a crucial role in maintaining continuous production. However, failures in the agitator electrical system can lead to significant downtime, resulting in operational losses and decreased production efficiency. Therefore, this study aims to design an effective preventive maintenance schedule to improve system reliability and optimize production performance. The research applies Failure Mode and Effects Analysis (FMEA), Risk-Based Maintenance (RBM), and Reliability-Centered Maintenance (RCM), supported by Weibull distribution analysis to evaluate failure characteristics and determine optimal maintenance intervals. The results show that the proposed preventive maintenance strategy is effective in improving system reliability, with an increase of up to 13% compared to conditions without preventive maintenance. The maintenance plan includes routine inspections of critical components, as well as scheduled replacements at one-, two-, and three-year intervals integrated with annual overhauls. In addition, the implementation of this maintenance schedule reduces annual downtime to 3.84%, enabling alumina production to reach up to 96% of the theoretical capacity of 1,000,000 tons per year. In conclusion, the proposed maintenance strategy not only enhances equipment reliability but also supports sustainable operational efficiency in alumina production processes.