Arief Setyawan, Mohamad (2024) Analisis Reability Komponen Kritis dengan Metode Fault Tree Analysis dan Perhitungan Umur Bantalan (22334 Cc/C3/W33) pada Centrifugal Fan - Cooler PT. Semen Indonesia (Persero) Tbk. Pabrik Tuban. Project Report. [s.n], [s.l.]. (Unpublished)
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Abstract
Laporan ini merupakan hasil magang industri yang dilaksanakan di PT Semen Indonesia (Persero) Tbk. Pabrik Tuban, khususnya pada bagian Machine Maintenance Section of Kiln Coalmill 1–2. Fokus kegiatan adalah menganalisis keandalan komponen kritis centrifugal fan–cooler menggunakan metode *Fault Tree Analysis* (FTA) dan melakukan perhitungan umur bantalan tipe 22334 CC/C3/W33. Centrifugal fan memiliki peran penting dalam proses pendinginan dan aliran udara di sistem produksi semen. Jika terjadi gangguan, maka proses produksi dapat terganggu dan menyebabkan penurunan efisiensi. Melalui metode FTA, dianalisis penyebab-penyebab utama kegagalan fan. Ditemukan 20 *basic event* yang menjadi faktor kerusakan, seperti kerusakan impeller, poros tidak seimbang, suhu bearing terlalu tinggi, rpm motor tidak stabil, serta kerusakan pada pulley dan V-belt. Selain itu, dilakukan perhitungan umur teoritis bantalan berdasarkan data teknis di lapangan. Dengan asumsi putaran fan sebesar 1.500 rpm dan beban dari impeller, umur teoritis bantalan dapat mencapai 50.000 jam. Namun, hasil evaluasi menunjukkan umur aktual lebih pendek akibat kondisi kerja seperti suhu tinggi dan pelumasan yang tidak optimal. Berdasarkan hasil analisis, disarankan adanya pemeliharaan prediktif seperti pemantauan getaran dan suhu, serta perbaikan SOP pemeliharaan fan dan bearing. Peningkatan keterampilan teknisi juga diperlukan agar penanganan komponen lebih tepat dan efisien. Melalui magang ini, mahasiswa mampu mengaplikasikan teori teknik pemeliharaan ke dunia industri secara langsung. Hasil penelitian ini diharapkan dapat meningkatkan keandalan mesin, mengurangi downtime, serta memberikan kontribusi terhadap efisiensi dan keberlanjutan proses produksi di industri semen.
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This report presents the results of an industrial internship conducted at PT Semen Indonesia (Persero) Tbk, Tuban Plant, specifically within the Machine Maintenance Section of Kiln Coalmill 1–2. The main focus of the internship was to analyze the reliability of critical components in the centrifugal fan–cooler system using the *Fault Tree Analysis* (FTA) method and to calculate the theoretical lifespan of the 22334 CC/C3/W33 bearing. The centrifugal fan plays a crucial role in the cooling and air circulation process within cement production. A failure in this system can significantly disrupt production flow and reduce overall efficiency. Through the FTA method, the root causes of fan failure were systematically analyzed. The study identified 20 basic events contributing to system failure, including impeller damage, unbalanced shafts, excessive bearing temperatures, unstable motor rpm, and failures in the pulley and V-belt systems. In addition, a theoretical bearing life calculation was carried out based on field data. With an assumed rotational speed of 1,500 rpm and loads transferred from the impeller, the theoretical service life of the bearing can reach up to 50,000 operating hours. However, actual observations revealed a shorter service life, primarily due to factors such as high operating temperatures, fluctuating loads, and suboptimal lubrication. Based on the findings, it is recommended to implement predictive maintenance practices, such as vibration and thermal monitoring, and to revise the fan and bearing maintenance Standard Operating Procedures (SOPs). Enhancing technician skills is also necessary to ensure proper handling and installation of components, ultimately minimizing the risk of premature failure. This internship provided an opportunity for students to directly apply academic theories related to machine reliability in a real industrial setting. The outcomes of this study are expected to enhance machine reliability, reduce downtime, and contribute to more efficient and sustainable operations within the cement manufacturing process.
| Item Type: | Monograph (Project Report) |
|---|---|
| Uncontrolled Keywords: | Analisis Pohon Kesalahan, Keandalan Mesin, Umur Bantalan, Centrifugal Fan, Pemeliharaan Prediktif Fault Tree Analysis, Machine Reliability, Bearing Life, Centrifugal Fan, Predictive Maintenance |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ174 Maintenance and repair of machinery T Technology > TJ Mechanical engineering and machinery > TJ217.6 Predictive Control T Technology > TJ Mechanical engineering and machinery > TJ919 Centrifugal pumps--Design and construction. |
| Divisions: | Faculty of Vocational > Mechanical Industrial Engineering (D4) |
| Depositing User: | Mohamad Arief Setyawan |
| Date Deposited: | 30 Jun 2025 07:59 |
| Last Modified: | 30 Jun 2025 07:59 |
| URI: | http://repository.its.ac.id/id/eprint/119276 |
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