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All Journal J@TI (TEKNIK INDUSTRI) Jurnal Sistem dan Manajemen Industri Jurnal INTECH Teknik Industri Universitas Serang Raya Jurnal InTent: Jurnal Industri dan Teknologi Terpadu International Journal of Multidisciplinary Research and Literature (IJOMRAL)
Gina Ramayanti, Gina
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Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Journal : Jurnal INTECH Teknik Industri Universitas Serang Raya

 1 
Analisis Time Series Perencanaan Inventory Naphtha dan Penentuan Reorder Point pada Crude C4 Kuncoro, Kefin Rendi; Ramayanti, Gina; Rosihin, Rosihin
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol 2, No 1 (2016)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/intech.v2i1.863

Abstract

The raw material used by this company is the result of refining petroleum in the form of naphtha and crude c4. In this discussion, there was often a buildup of ships in the Anchorage area before leaning on the Jetty because there was no ready storage of raw materials to receive cargo. To overcome the problem in inventory naphtha, it uses the exponential smoothing method by finding the smallest MAD. And to overcome the difficulty in C4 crude using the reorder point method to determine the existing safety stock. Based on the results of calculations using the exponential smoothing method, the smallest MAD is obtained which is 5099.66 with a value of α 0.9. And with the estimate of safety stock for naphtha tanks that is equal to 11898.5 tons with a safety factor of 95%. The results of the reorder point calculation on Crude C4 obtained a safety stock of 1959 Tons with ROP (Reorder Point) of 3959 Tons which means that when supplies have reached ROP, it is recommended to send the Crude C4 product to the shipment so that excessive production does not accumulate in the tank.
Perbaikan Waktu Set Up dengan Metode Single Minute Excange of Dies pada Mesin Die Casting Ariyanto, Muchamad Septi; Ramayanti, Gina; Sahrupi, Sahrupi
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol 3, No 1 (2017)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/intech.v3i1.874

Abstract

The time needed to set up the production machine is 55 minutes. The high set-up time is caused by the non-differentiation of internal set-up and external set-up so that all set-up activities are carried out when the engine stops (internal set up). When viewed from the effectiveness of the company, the setup activities carried out at the time of the engine stop will significantly harm the company, which in turn will have an impact on the high bottleneck which results in delays in the production process in specific capacities. Research activities are carried out by direct measurement of die casting machines using a stopwatch. In this study, the authors conducted a study to apply the SMED method when setting up die casting machines at PT Mitsuba Indonesia. The SMED (Single Minute of Exchange Die) method as an approach is considered as one of the solutions used to reduce the setup time of the machine. From the results of the study, it was found that the set-up time was 35 minutes, or efficient by 64% on the set-up time before the repair.
Usulan Perbaikan Kualitas Produk Pipa Api 5L PSL2 Menggunakan Metode Six Sigma Nalhadi, Ahmad; Aida, Nur; Ramayanti, Gina
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 4 No. 2 (2018)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.322 KB) | DOI: 10.30656/intech.v4i2.1083

Abstract

The production process of API 5L PSL2 pipes in Pipe Companies in 2017 happened to defect products at 7%. This defect is still above the standards set by the Company at 4%. The study aims to determine the value of sigma and provide recommendations for improvement with the six sigma method. Based on the results of the DMAI analysis, the amount of the pipe sigma level was 3.65 with the value of DPMO 14448. Types of defects identified in the process such as open welding defects, high lows, contact marking, scarring, and under dimension Proposed improvements were made by designing recommendations for improvements using 5W + 1H by checking the condition of the forming machine and changing bearing components before the bearing lifetime, performing preventive maintenance every week and adding coolant bursts to the cutting tool.
Co-Authors Ahmad Nalhadi, Ahmad Amanda Putra, Levi Ariyanto, Muchamad Septi Aulia Kusumawati, Aulia Herkuntarto, Fajar Hidayatul Ulum, Hidayatul Kuncoro, Kefin Rendi Laila Latisa Lailatul Fitriyeni, Lailatul Nur Aida, Nur Pujianto, Rio Putri, Hidayatul Saskya Romi Afriansyah, Romi Rosihin Rosihin, Rosihin Safitri, Salsabila Sahrupi, Sahrupi Shofa, Mohamad Jihan Solly Aryza Supriyadi Supriyadi Yulistyari, Eka Indah