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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

Unknown Affiliation

Author-ID : 626815

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

Published : 8 Documents Claim Missing Document

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Articles

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

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 Î± 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

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

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.

Sistem Penentuan Supplier Kawat Las Dengan Metode Analitycal Hierarchy Process (AHP) dan Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) Ramayanti, Gina; Ulum, Hidayatul
Jurnal Sistem dan Manajemen Industri Vol. 1 No. 1 (2017)
Publisher : Universitas Serang Raya

Supplier selection is being a strategic activity, especially when the supplier is supplying materials that will be used in the long term. In the world of construction, one part of the supply chain which has a significant contribution to the improvement of the company's effectiveness is the efficiency in the procurement of materials (raw materials) from suppliers. In the research found the problem of 50 TON of welded wire failed. This study aims to determine the criteria based on the company needs in determining the supplier of welding wire and provide the ranking of suppliers as a material consideration in determining the supplier. The study used the Analytical Hierarchy Process (AHP) method for the selection of criteria and the Technique For Order Performance By Similiar To Ideal Solution for rating or evaluating alternative suppliers. Based on the results of AHP calculation we get the weight of each criteria as follows, for the quality of 0.0644, the price 0.056, the delivery time of 0.158, the quantity 0.053, the response to the claim of 0.093, and from the criteria are made reference to the calculation of vendor selection using TOPSIS. Results obtained supplier S2, i.e., PT.Esabindo Pratama ranked first as a priority supplier with a preference value of 0.322. Excellence which is owned by supplier S2 (PT.Esabindo Pratama) are the criteria of quality, price, quantity

MEASUREMENT OF RESTAURANT SERVICE QUALITY USING MODIFICATION METHOD OF SERVICE QUALITY AND IMPORTANCE PERFORMANCE ANALYSIS Putri, Hidayatul Saskya; Shofa, Mohamad Jihan; Ramayanti, Gina
International Journal of Multidisciplinary Research and Literature Vol. 1 No. 1 (2022): INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND LITERATURE
Publisher : Yayasan Education and Social Center

The purpose of this study is to determine the quality of services provided through customer satisfaction and determine the priority of attributes for improvement. In this study, the modification of Service Quality with 9 dimensions is used (Tangible, Reliability, Responsiveness, Assurance, Empathy, Cleansliness, Health, Safety and Environment Sustainability) and Importance Performance Analysis (IPA). Assessment of service level is given using a questionnaire of 100 samples from customer of sate tegal restaurant in Cilegon City, Banten. This restaurant does not only provide satay culinary, but also provides a variety of other food and beverage culinary menus. The results of the study using the Modified Service Quality Gap method resulted in a negative value, it states that the services provided by restaurants do not provide satisfaction to customers. In an effort to increase customer satisfaction with the services provided by using the Importance Performance Analysis (IPA) method, in quadrant A (top priority) there are 4 service quality attributes that are included in the top priority and must be improved

REUSE OF SPUN PILE PRODUCTION WASTE FOR PAVING BLOCK DEVELOPMENT BY TAGUCHI METHOD Wajdi, Farid; Herkuntarto, Fajar; Ramayanti, Gina
J@ti Undip: Jurnal Teknik Industri Vol 19, No 1 (2024): Januari 2024
Publisher : Departemen Teknik Industri, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jati.19.1.1-11

The production of precast spun piles generates solid and liquid waste products. The solid waste consists of stone, sand, and mud materials, while the liquid waste consists of K-600 grade concrete cement mixed with water. It is poured into a 1m3 container and solidifies within 3 hours. The production process of precast concrete piles is fast, which results in quick waste accumulation in the factory area. This research aims to transform the waste into paving blocks suitable for road construction. The Taguchi method is employed to determine the optimal strength of the paving blocks using three variables: (1) the ratio of solid to liquid waste in three levels - 70:30%, 60:40%, and 50:50%, (2) mixing time in three levels - 5, 10, and 15 minutes, and (3) curing time in three levels - 3, 7, and 14 days. The strength of the paving blocks is tested by measuring the maximum compressive strength. The results indicated that the best combination for achieving maximum compressive strength was using (1) a 50%:50% ratio of solid to liquid waste, (2) a curing time of 14 days, and (3) a mixing time of 5 minutes, resulting in a maximum compressive strength of 125.72 Kg/cm2. It is equivalent to Grade D paving blocks that are suitable for road application.

ANALISIS PENYABAB KERUSAKAN MESIN DENGAN MENGGUNAKAN METODE FAILURE MODE AND EFFECT ANALYSIS (FMEA) DI PT. SULFINDO ADIUSAHA Kusumawati, Aulia; Safitri, Salsabila; Amanda Putra, Levi; Ramayanti, Gina
Jurnal Intent: Jurnal Industri dan Teknologi Terpadu Vol. 7 No. 2 (2024): INDUSTRIAL
Publisher : Prodi Teknik Industri, Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47080/intent.v7i2.3898

PT Sulfindo Adiusaha is a chemical company focused on operational efficiency and quality. The main issue faced is frequent machine breakdowns, particularly mechanical seal leakage, which disrupts production processes. This study aims to analyze the causes of damage using the Failure Mode and Effect Analysis (FMEA) method to determine repair priorities. The analysis results show that mechanical seal leakage has the highest Risk Priority Number (RPN) of 504, making it the top repair priority. The main causes of damage include human factors, maintenance methods, materials, and machine wear. Recommendations for improvement include operator training, replacing components with heat-resistant materials, and structured periodic maintenance. These steps are expected to enhance productivity and reduce downtime risks.

PENGENDALIAN KUALITAS PRODUK CEPLIS DENGAN PENDEKATAN SIX SIGMA DAN KAIZEN ramayanti, gina; Laila Latisa
Jurnal Intent: Jurnal Industri dan Teknologi Terpadu Vol. 8 No. 1 (2025): INDUSTRIAL
Publisher : Prodi Teknik Industri, Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47080/7gsark34

This research was conducted at PT. Sartika Barka Berlimpah which is one of the centers for typical Cilegon souvenirs and one type of product that is prepared with processed melinjo, namely ceplis. In the original ceplis production process at this company, there are often product defects with the types of defects, namely texture, color and oiliness. In the production process, this company has not implemented six sigma, so there is no measurement of the sigma level. If you continue to ignore it, it will have a detrimental impact on the company, such as increasing operational costs and decreasing profits. This research aims to improve the quality of ceplis products so that losses from production can be reduced, as well as to determine the characteristics of product defects that occur. This research uses the six sigma method with a kaizen approach. The results of this research are that the average Defect Per Million Opportunities (DPMO) value in the July- December 2023 period is 17245.76 with a sigma value of 3.61 which is in the industry average category. The highest defects in ceplis products are defects in texture and color. Based on the Five M-Checklist analysis, to overcome the quality of ceplis products, this can be done by providing a break of 5-10 minutes for rest at 9.30 and 15.30, more thorough and stringent inspections for the quality of melinjo seeds, providing a stainless-steel oil container next to the fryer, and carry out routine cleaning of the melinjo seed storage area every week.

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

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