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Analisis Coal Plugging Atau Penyumbatan Batu Bara Pada Mesin Coal Feeder Unit 1-4 Dengan Metode FTA (Fault Tree Analysis) Di PT. ABZ Muhamad Bob Anthony
JATI UNIK : Jurnal Ilmiah Teknik dan Manajemen Industri Vol 3, No 2 (2020): April
Publisher : Industrial Engineering, Engineering of Faculty, Universitas Kadiri

PT. ABZ is one of the big companies that runs its main business in the field of power generation in Indonesia. The company is experiencing problems in one of its equipment, namely coal feeder units 1-4 which often occurs coal plugging or coal blockage. Coal feeder is one of the main equipment that serves to regulate the amount of coal entering the pulverizer. This study aims to determine the root cause of problems from coal plugging or coal obstruction in coal feeder equipment at PT. ABZ using the FTA (Fault Tree Analysis) Method and provides a proposed improvement with the 5W + 1 H Method (what, why, who, when, where and how). Based on the analysis using FTA, it was found that the cause of coal plugging or blockage that occurs in coal feeder machines is due to contamination of the coal used, low calorific value of coal, the machine operates continuously, the machine is old, lack of control from the workers and coal wet when you want to use. Proposed improvements have been made and one of them is by separating wet coal from dry coal automatically using a coal online analyzer. PT. ABZ merupakan salah satu perusahaan besar yang menjalankan bisnis utamanya dibidang pembangkit tenaga listrik di Indonesia. Perusahaan ini mengalami permasalahan di salah satu peralatannya yaitu coal feeder unit 1-4 yang sering terjadi coal plugging atau penyumbatan batubara. Coal feeder merupakan salah satu peralatan utama yang berfungsi untuk mengatur jumlah batubara yang masuk ke pulverizer. Penelitian ini bertujuan untuk mengetahui akar penyebab masalah dari gangguan coal plugging atau peyumbatan batubara di peralatan coal feeder di PT. ABZ dengan menggunakan Metode FTA (Fault Tree Analysis) dan memberikan usulan perbaikan dengan Metode 5W + 1 H (what, why, who, when, where dan how). Berdasarkan analisa menggunakan FTA, didapatkan bahwa penyebab coal plugging atau penyumbatan yang terjadi pada mesin coal feeder adalah dikarenakan adanya kontaminasi pada batubara yang digunakan, nilai kalori batubara yang rendah, mesin beroperasi secara terus menerus, mesin sudah tua, kurangnya kontrol dari pihak pekerja dan batubara basah saat akan digunakan. Usulan perbaikan telah dibuat dan salah satunya adalah dengan cara memisahkan batubara basah dengan batubara yang kering secara otomatis menggunakan alat coal online analyzer.

Pengukuruan Produktivitas Dengan Menggunakan Metode Objective Matrix di PT.ABC Muhamad Bob Anthony
JATI UNIK : Jurnal Ilmiah Teknik dan Manajemen Industri Vol 3, No 1 (2019): October
Publisher : Industrial Engineering, Engineering of Faculty, Universitas Kadiri

PT. ABC is a chemical company that produces emulsions. Evaluation of performance development in the production department requires a measurement of productivity with the aim of knowing the level of productivity in the production section that has been achieved based on the criteria that are indicators of productivity in the form of ratios, identifying the causes of the decline in productivity and making improvement plans in an effort to continuously increase productivity. The method used in measuring productivity in this study is the Objective Matrix method so the steps in this study refer to the need for matrix formation. Based on the measurement of the productivity value in the production section before making improvements with the Objective Matrix method for the 6 months period July 2017 to December 2017 the lowest productivity value was obtained in December 2017. The factor that caused this lowest productivity value was the very long reactor washing for 24 hours. Washing the reactor is very long because the washing method is still done manually. The productivity value increased after there was an improvement by shortening the reactor cleaning time by using the 300 bar pressurized water jet cleaner method, namely in January 2019 to 738 or 560.76% compared to the previous period and an increase of 146.0% compared to the standard productivity value. PT.ABC merupakan salah satu perusahaan kimia yang memproduksi emulsi. Evaluasi perkembangan kinerja di bagian produksi memerlukan suatu pengukuran produktivitas dengan tujuan mengetahui tingkat produktivitas di bagian produksi yang telah dicapai berdasarkan kriteria-kriteria yang menjadi indikator produktivitas dalam bentuk rasio, mengidentifikasi penyebab terjadinya penurunan produktivitas dan melakukan perencanaan perbaikan sebagai upaya peningkatan produktivitas secara berkesinambungan. Metode yang digunakan dalam pengukuran produktivitas dalam penelitian ini adalah metode Objective Matrix sehingga langkah-langkah pada penelitian ini mengacu pada kebutuhan pembentukan matrik. Berdasarkan pengukuran nilai produktivitas di bagian produksi sebelum dilakukan perbaikan dengan metode Objective Matrix selama 6 bulan periode Juli 2017 sampai Desember 2017 diperoleh nilai produktivitas terendah di bulan Desember 2017. Faktor yang menyebabkan nilai produktivitas terendah ini adalah pencucian reaktor yang sangat lama yaitu selama 24 jam. Pencucian reaktor ini sangat lama dikarenakan metode pencucian masih dilakukan secara manual. Nilai produktivitas mengalami peningkatan setelah ada perbaikan dengan mempersingkat waktu pencucian reaktor dengan menggunakan metode water jet cleaner bertekanan 300 bar yaitu pada Januari 2019 menjadi 738 atau 560.76% dibandingkan periode sebelumnya dan mengalami peningkatan 146.0% dibandingkan nilai produktivitas standar.

Analisa Risiko Keselamatan Dan Kesehatan Kerja Menggunakan Standar AS/NZS 4360:2004 Di Perusahaan Pulp&Paper Muhamad Bob Anthony
JATI UNIK : Jurnal Ilmiah Teknik dan Manajemen Industri Vol 2, No 2 (2019): April
Publisher : Industrial Engineering, Engineering of Faculty, Universitas Kadiri

This research has the purpose to find out the value of the risk of the potential dangers of work and level of risk of the potential dangers of working and know the potential dangers of dominant work that led to the occurrence of accidents at the company's pulp paper process in & area the production of paper. This research approach by using the method of HIRA (Hazard Identification and Risk just my Assesment) using the standard AS/NZS4360:2004 to calculate values before there is risk control (basic risk) until after control of risk (existing risk). The results of the activities of the production process on the company PT. XYZ is acquired 16 basic risk activity that consists of a category acceptable risk as 6, priority 3 category 2 category, substantial risk (priority 2) as many as 3 risk, priority 1 category 4 category of risk and very high risk as much as 1. After control of the risk (the existing risk) obtained a decrease risk category can be received (acceptable) a total of 10 risk (62.5%), priority 3 as much as 5 risk (31.25%) and substantial category (priority 2) as much as 1 risk (6.25%) While the priority categories 1 and very high risk categories have been lost after a controlling or mitigating risk Penelitian ini memiliki tujuan untuk mengetahui nilai risiko potensi bahaya kerja dan level risiko potensi bahaya kerja serta mengetahui potensi bahaya kerja dominan yang menyebabkan terjadinya kecelakaan kerja di perusahaan pulp&paper pada proses di area produksi kertas. Penelitian ini menggunakan pendekatan dengan metode HIRA (Hazard Identification and Risk Assesment) dengan menggunakan standar AS/NZS4360:2004 untuk menghitung nilai-nilai risiko sebelum ada pengendalian (basic risk) sampai setelah dilakukan pengendalian terhadap risiko (existing risk). Hasil penelitian dari kegiatan proses produksi pada perusahaan PT. XYZ ini didapatkan 16 kegiatan basic risk yang terdiri dari kategori acceptable sebanyak 6 risiko, kategori priority 3 sebanyak 2 risiko, kategori substantial (priority 2) sebanyak 3 risiko, kategori priority 1 sebanyak 4 risiko dan kategori very high sebanyak 1 risiko. Setelah dilakukan pengendalian terhadap risiko (existing risk) didapatkan penurunan resiko yaitu kategori dapat di terima (acceptable) sebanyak 10 risiko (62,5%), priority 3 sebanyak 5 risiko (31,25%) dan kategori substantial (priority 2) sebanyak 1 risiko (6,25%) sedangkan kategori priority 1 dan kategori very high risk telah hilang setelah dilakukan pengendalian atau mitigasi resiko.

Analisis Penerapan Total Productive Maintenance (TPM) Menggunakan Overall Equipment Efectiveness (OEE) Dan Six Big Losses Pada Mesin Cold Leveller PT. KPS Muhamad Bob Anthony
JATI UNIK : Jurnal Ilmiah Teknik dan Manajemen Industri Vol 2, No 2 (2019): April
Publisher : Industrial Engineering, Engineering of Faculty, Universitas Kadiri

PT. KPS is one steel company in Indonesia that produces steel products in the form of slab and plate that is marketed in the country up to foreign countries. Cold leveller machine is a machine that serves to flatten the surface of the plate. Problems occurred in the machinery that is often experienced a breakdown so that the plate with uneven surfaces more and more because of the time machine working on the wane. This research aims to quantify the value of the overall equipment effectiveness (OEE), calculating the factor of six big losses and figure out the root cause of the problem, the dominant factor of the six big losses with the fishbone diagram. The OEE value obtained on the engine cold leveller is 82%. The biggest factor that causes the low effectiveness of the machine that is the reduced speed losses amounting to 11.59% and equipment failure losses amounted to 6.04%. The proposed corrective actions is prioritizing the main TPM pillar 3 that is autonomous maintenance, quality maintenance, training and education.PT. KPS adalah salah satu perusahaan baja di Indonesia yang memproduksi produk baja berupa slab dan plate yang dipasarkan di dalam negeri hingga ke luar negeri. Mesin cold leveller merupakan mesin yang berfungsi meratakan permukaan plate yang tidak rata. Permasalahan yang terjadi pada mesin tersebut yaitu sering mengalami breakdown sehingga plate dengan permukaan yang tidak rata semakin banyak karena waktu bekerja mesin semakin berkurang. Penelitian ini bertujuan untuk menghitung nilai overall equipment effectiveness (OEE), menghitung nilai faktor six big losses dan mengetahui akar penyebab masalah yang dominan dari faktor six big losses dengan fishbone diagram. Nilai OEE yang didapat pada mesin cold leveller adalah sebesar 82%. Faktor terbesar yang menyebabkan rendahnya efektifitas mesin yaitu reduced speed losses sebesar 11,59% dan equipment failure losses sebesar 6,04%. Tindakan perbaikan yang diusulkan adalah memprioritaskan 3 pilar utama TPM yaitu autonomous maintenance, quality maintenance, training dan education.

Analisa Risiko Keselamatan Dan Kesehatan Kerja Menggunakan Metode HAZOPs Di Area Gas Cleaning System Di PT. RK Muhamad Bob Anthony
JATI UNIK : Jurnal Ilmiah Teknik dan Manajemen Industri Vol 3, No 1 (2019): October
Publisher : Industrial Engineering, Engineering of Faculty, Universitas Kadiri

PT. RK is one of the major international steel producing companies. This study aims to determine the potential hazards and the value of the level of risk that is likely to occur in the new plant owned by PT. RK i.e. the gas cleaning system area which is currently in the process of entering 95% progress. This study uses the Hazard & Operability Study (HAZOPs) method in analyzing risks in the gas cleaning system area of PT. RK. The Hazard & Operability Study (HAZOPs) method was used in this study because this method is very suitable for a new plant to be used. Based on the identification of potential hazards and risk analysis that has been done in the area of gas cleaning system using the HAZOPs method, it was found that 11 deviations that might occur from all existing nodes, i.e. for extreme risk levels of 1 (one) deviation or 9%, level high risk of 2 (two) deviations or 18%, moderate risk level of 6 (six) deviations or 55% and low risk level of 2 (two) deviations or 18%. PT. RK merupakan salah satu perusahaan manufaktur besar penghasil baja berskala internasional. Penelitian ini bertujuan untuk mengetahui potensi bahaya dan nilai level risiko yang kemungkinan terjadi di plant baru milik PT. RK yaitu area gas cleaning system yang saat ini proses pekerjaannya sudah memasuki progress 95%. Penelitian ini menggunakan metode Hazard & Operability Study (HAZOPs) dalam menganalisa risiko di area gas cleaning system PT. RK. Metode Hazard & Operability Study (HAZOPs) digunakan dalam penelitian ini dikarenakan metode ini sangat cocok untuk sebuah plant baru yang akan digunakan. Berdasarkan identifikasi potensi bahaya dan analisa risiko yang telah dilakukan di area gas cleaning system dengan menggunakan metode HAZOPs, didapatkan bahwa 11 penyimpangan yang kemungkinan terjadi dari semua node yang ada yaitu untuk level risiko extreme sebanyak 1 (satu) penyimpangan atau sebesar 9%, level risiko high risk sebanyak 2 (dua) penyimpangan atau sebesar 18%, level risiko moderate sebanyak 6 (enam) penyimpangan atau sebesar 55% dan level risiko low risk sebanyak 2 (dua) penyimpangan atau sebesar 18%.

PENGARUH TEKANAN DAN SUHU TERHADAP FAKTOR KOMPRESSIBILITAS GAS ALAM (STUDI KASUS GAS ALAM RUMAH TANGGA) Muhamad Bob Anthony; Prawoto Prawoto
SINERGI Vol 21, No 2 (2017)
Publisher : Universitas Mercu Buana

Penggunaan rumus perhitungan faktor kompressibilitas gas alam secara manual dan hanya menggunakan satu parameter saja yaitu tekanan (Pa) oleh pihak penjual gas untuk pelanggan rumah tangga mengakibatkan adanya ketidaknyamanan dan pertanyaan dari masyarakat sebagai pelanggan gas terhadap keakuratan, keabsahan dan kehandalan rumus tersebut dikarenakan seharusnya faktor kompressibilitas gas alam dipengaruhi juga oleh suhu (Ta). Penelitian ini dilakukan di badan metrologi gas jakarta yang mempunyai standar internasional yaitu EN 12405 dan AGA NX19. Data yang didapat kemudian diolah dan dianalisa menggunakan program SPSS versi 16. Berdasarkan hasil pengolahan data dan analisa tersebut didapat bahwa suhu (Ta) juga mempunyai pengaruh terhadap faktor kompressibilitas (Zb/Zm) akan tetapi karena nilainya sangat kecil sekali maka pengaruh ini dapat diabaikan.

Pengaruh Budaya 5R dan Kinerja Karyawan terhadap Lingkungan Kerja di Sinter Plant PT.XYZ Muhamad Bob Anthony
Jurnal Media Teknik dan Sistem Industri Vol 4, No 2 (2020)
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jmtsi.v4i2.1031

Abstract— PT. XYZ is one of the large and multinational companies engaged in steel production in Indonesia and in the first half of 2019 PT. XYZ faces a challenge that is the many employees in the sinter plant do not implement the 5R culture. Sinter plant is the main supplier plant for the blast furnace plant at PT. XYZ which functions to combine a raw material mixture at high temperatures to produce a product known as sinter ore. This research was conducted at PT. XYZ. The data obtained was then processed and analyzed using the SPSS version 26 program. Based on the results of data processing and analysis, it was found that all indicators used in this study had good validity and reliability. The results of data processing and analysis in this study also found that 5R culture (X1) and employee performance (X2) had an influence on the work environment (Y).Keywords— 5R Culture, Employee Performance, Work Environment. Abstrak— PT. XYZ adalah salah satu perusahaan besar dan multinasional yang bergerak di bidang produksi baja di Indonesia dan pada semester pertama tahun 2019 PT. XYZ menghadapi tantangan yaitu banyaknya karyawan di sinter plant yang tidak melaksanakan budaya 5R. Sinter plant merupakan plant pemasok utama untuk blast furnace plant di PT. XYZ yang berfungsi untuk menggabungkan suatu raw material mixture pada temperatur tinggi sehingga menghasilkan produk yang dikenal dengan nama sinter ore. Penelitian ini dilakukan di sinter plant PT. XYZ. Data yang didapat kemudian diolah dan dianalisis menggunakan program SPSS versi 26. Berdasarkan hasil pengolahan data dan analisa tersebut didapat bahwa semua indikator-indikator yang digunakan dalam penelitian ini memiliki keabsahan (validitas) dan keandalan (reliabilitas) yang baik. Hasil pengolahan data dan analisa dalam penelitian ini juga mendapatkan bahwa budaya 5R (X1) dan kinerja karyawan (X2) mempunyai pengaruh terhadap lingkungan kerja (Y).Kata kunci— Budaya 5R, Kinerja Karyawan, Lingkungan Kerja.

Analisis Postur Pekerja Pengelasan Di CV. XYZ dengan Metode Rapid Entire Body Assessment (REBA) Muhamad Bob Anthony
JATI UNIK : Jurnal Ilmiah Teknik dan Manajemen Industri Vol 3, No 2 (2020): April
Publisher : Industrial Engineering, Engineering of Faculty, Universitas Kadiri

CV. XYZ is one of the welding workshops that serves the manufacture of iron products with 4 (four) welding workers. Welding work carries risks for experiencing Musculoskeletal Disorders (MSDs) for the welding worker. This can be caused by work posture factors that often bend and squat when doing welding. Based on the calculation results, REBA score results obtained with action level 3 (three) which states that the welding work in the CV. XYZ is at a high level of risk so immediate corrective action is needed by CV. XYZ Proposed improvement of the worker's posture when welding work is a redesign of the work station or the addition of work aids based on ergonomic principles such as the procurement of a work table for the welding work process so as to reduce the risk of workers' posture to a low risk level. CV. XYZ merupakan salah satu bengkel pengelasan yang melayani pembuatan produk besi dengan 4 (empat) orang pekerja pengelasan. Pekerjaan pengelasan memiliki risiko untuk mengalami Musculoskeletal Disorders (MSDs) bagi pekerja pengelasan tersebut. Hal ini dapat disebabkan oleh faktor postur kerja yang sering membungkuk dan jongkok saat melakukan pengelasan. Berdasarkan hasil perhitungan, didapatkan hasil skor REBA dengan action level 3 (tiga) yang menyatakan bahwa pekerjaan pengelasan di CV. XYZ berada pada level risiko tinggi sehingga diperlukan tindakan perbaikan secepatnya oleh CV. XYZ. Usulan perbaikan postur tubuh pekerja saat pekerjaan pengelasan adalah perancangan ulang stasiun kerja atau penambahan alat bantu kerja berdasarkan prinsip-prinsip ergonomi seperti pengadaan meja kerja untuk proses pekerjaan pengelasan sehingga dapat mengurangi risiko postur tubuh pekerja menjadi level risiko rendah.

Analisis Penyebab Kerusakan Hot Rooler Table dengan Menggunakan Metode Failure Mode And Effect Analysis (FMEA) Muhamad Bob Anthony
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 4 No. 1 (2018)
Publisher : Universitas Serang Raya

This research was conducted in an international company engaged in iron and steel products manufacturing industries. One of the equipment that is often damaged is a hot roller table machine in the furnace section mill unit. The availability results obtained in hot roller table equipment is 96.571% and is still below the company standard which is set at 98%. Therefore, we need an analysis of the root causes of the problem and search for the best solution to fix the existing problem by applying the method of Failure Mode and Effect Analysis (FMEA). FMEA is a method that can systematically and structurally analyze and identify the consequences of a system or process failure, and also reduce or analyze the probability of failure. The purpose of this study is to identify and analyze the level of damage and its causes with the application of the FMEA method. Based on the pareto diagram the damage to the hot roller table machine, it was found that the highest frequency of damage was in the rotary coupling with a down time percentage of 26.9%. From the FMEA Analysis, two components that have very high RPN values are categorized as potential severit i.e. bearing as the first with an RPN value of 392 and the second is a seal ring with an RPN value of 294. The two components are the main priority for repair of the furnace section. mill, especially for machine and human aspects.

Usulan Penurunan Tingkat Kecacatan Produk Pelat Baja dengan Metode Six Sigma Muhamad Bob Anthony
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 3 No. 2 (2017)
Publisher : Universitas Serang Raya

This study aims to maximize the decline in the level of product defects to lead to zero defects. Researchers use the six sigma method through 5 stages of completion, namely, define, measure, analyze, improve, and control. Based on the results of the study it can be concluded that the sigma level and the value of DPMO (Defect per Million Opportunities) of the company amounted to 3.47 with possible damage of 24,239 sheets for one million productions. After further analysis using the Pareto diagram, it found that the cutting fault transfer defect was the most common with a percentage of damage of 43%. And based on the results of the analysis of fishbone diagrams, it can be seen that the main factors causing contamination in the production process come from the worker factor (human), followed by machine factors, material, and work methods. The proposed improvements that can be made by the company include updating existing methods and SOPs (standard operating procedures) and monitoring the operator's performance and developing knowledge and planning proper maintenance scheduling.

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