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All Journal Jurnal Teknik Industri Jurnal Teknoin Jurnal Ilmiah Teknik Industri Journal of Mechanical Engineering Science and Technology Conference on Innovation and Application of Science and Technology (CIASTECH) Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat Jurnal Sains dan Aplikasi Keilmuan Teknik Industri Prosiding Seminar Nasional Teknik Industri Jurnal Pengabdian Masyarakat Charitas Metris: Jurnal Sains dan Teknologi Journal of Integrated System
YURIDA EKAWATI, YURIDA
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Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Social Sciences Transportation

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Journal : Jurnal Sains dan Aplikasi Keilmuan Teknik Industri

 1 
Penentuan Prioritas Kriteria dan Peringkat Pemasok Menggunakan AHP-TOPSIS di PT Sutindo Raya Mulia Gunawan, Evelyn; Oktiarso, Teguh; Ekawati, Yurida
Jurnal Sains dan Aplikasi Keilmuan Teknik Industri (SAKTI) Vol. 3 No. 1 (2023): June 2023
Publisher : Teknik Industri Universitas Ma Chung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33479/jtiumc.v3i1.45

Abstract

Sutindo Raya Mulia is a stockist company that purchases, stores, and resells it to consumers. PT Sutindo Raya Mulia is headquartered in the city of Surabaya and has branch offices in Jakarta, Semarang, Balikpapan, and Samarinda. One of the products offered by SRM is a stainless steel plate. Plate products have 3 series (S200, S300, and S400) and have different suppliers consisting of both local and international. Some of the weaknesses of the purchasing process can be caused by the selection of suppliers that are not fixed when purchasing products from suppliers. This is because the company does not have priority criteria in selecting suppliers. Priority criteria are determined using the Analytical Hierarchy Process method. Supplier assessment is determined using the Technique for Order Preference by Similarity to Ideal Solution method. The results of the AHP method obtained the weight and order of these criteria, price (0.261), availability (0.206), quality (0.200), position (0.106), quantity (0.102), MOQ (0.060), delivery (0.038), payment method (0.027). The results of the TOPSIS method obtained the value and sequence of suppliers, AB (0,587 - 21,0%); AC (0,764 - 27,3%); AD (0,565 - 20,2%); AE (0,490 - 17,5%); AF (0,397 - 14,1%).
Penerapan Metode Fault Tree Analysis Untuk Mencegah Kegagalan Pada Departemen Interior di PT X Yolanda, Metta; Ekawati, Yurida; Noya, Sunday
Jurnal Sains dan Aplikasi Keilmuan Teknik Industri (SAKTI) Vol. 3 No. 1 (2023): June 2023
Publisher : Teknik Industri Universitas Ma Chung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33479/jtiumc.v3i1.49

Abstract

The Interior Department is one of the departments of PT X that produces bus and minibus interior parts. During the interior production process there are still quite a lot of defective products. There are six types of defects, namely air bubbles, not 100% printed, double tip insulation does not stick, torn, too dense/less dense, and color striped. The main focus of this research is to analyze the causes of failure of a process and make recommendations for improvements that can be made using the Fault Tree Analysis (FTA) method. From the FTA, improvements are needed to reduce defects in the Interior Department. Recommendations for improvement that can be given to the company are to create a checklist form to make it easier for operators to clean the mattress regularly, to check that the non-stick liquid has been sprayed twice, to ensure that the mattress has been heated every morning, to ensure that the paint has been shaken before use so that there are no striped colors, and to ensure that the paint has been sprayed twice. Then the next improvement recommendations are to provide and attach a standard description to each injection number on each product, make a machine maintenance schedule, replace the non-stick liquid with an old model that is not too strong, provide a timer on the mattress that is used as a reminder when waiting for the paint to dry, procure a mattress equipped with a sound sensor, and procure a generator.
Perancangan Perbaikan untuk Mengurangi Cacat Produk pada Departemen Fiber PT XYZ dengan Metode FTA Soejanto, Jessica Clarissa; Ekawati, Yurida; Purnomo, Purnomo
Jurnal Sains dan Aplikasi Keilmuan Teknik Industri (SAKTI) Vol. 3 No. 2 (2023): December 2023
Publisher : Teknik Industri Universitas Ma Chung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33479/jtiumc.v3i2.50

Abstract

The fiber department is one of the departments in the PT XYZ produces bus panels and appliances. Based on the fiber production data on August 1 - September 23, 2022, there are 92 defects out of 547 products. It is important to analyze the root cause of the failure in the production process. There are seven types of defects in the manufacturing process that is, fiber is too thick or thin, the fiber surface is rough, fiber has white spots, fiber needs a long time to dry, fiber rejects (liquid/burn), the putty result is imperfect, and the paint is imperfect. The root cause analysis was conducted using Fault Tree Analysis (FTA) method. Based on FTA, defective products can be caused by human, machine, or equipment factors. From that, it will be used for improvement recommendations to improve the quality. Examples of the corrective recommendations are periodic drain engine water, emptying water form, products-checkout form, and roll-cleaning form, using a measuring cup for the catalyst, and a new container for acetone.
Analisis Efektivitas Mesin Cetak Flexo menggunakan Metode Overall Equipment Effectiveness Berbasis Six Big Losses: Studi Kasus: Industri Corrugated Box Saw Shu Zhen, Angelica Audrey; Purnomo, Purnomo; Ekawati, Yurida
Jurnal Sains dan Aplikasi Keilmuan Teknik Industri (SAKTI) Vol. 4 No. 1 (2024): June 2024
Publisher : Teknik Industri Universitas Ma Chung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33479/sakti.v4i1.71

Abstract

PT X is a manufacturing company operating in the integrated cardboard industry, utilizing various machines, including flexography machines. This study aims to analyze the primary causes of production deficiencies in the flexography process and provide improvement recommendations using the Six Big Losses-based Overall Equipment Effectiveness (OEE) method. The OEE analysis revealed that the average availability ratio is 88.8%, falling short of the world-class standard of 90%. A deeper analysis using the Six Big Losses methodology identified that the primary cause for not achieving the desired availability ratio is the high percentage of setup and adjustment losses, which stands at 7%. To address these issues, several recommendations are proposed. Firstly, conducting comprehensive training for operators on the proper and correct operation of flexography machines is essential. This training will enhance their technical skills and reduce the time lost during setup and adjustments. Secondly, implementing daily briefings for operators before shifts begin, coupled with regular supervision, will ensure consistent adherence to operational standards. Moreover, establishing a routine and time-limited cleaning schedule for machines and work locations will minimize unexpected downtimes due to maintenance issues. Finally, developing and enforcing standardized machine operation protocols will promote discipline among operators, ensuring that all procedures are followed meticulously. These recommendations aim to improve the overall efficiency of flexography machines, thereby increasing the availability ratio to meet or exceed the world-class standard. By addressing the root causes of production inefficiencies, PT X can enhance its operational performance and maintain its competitive edge in the cardboard industry.
Defect Analysis Using Failure Mode and Effects Analysis and Fault Tree Analysis: Case Study: Secondary Section PT PID Ongkowijoyo Pramono, Elvina; Noya, Sunday; Ekawati, Yurida
Jurnal Sains dan Aplikasi Keilmuan Teknik Industri (SAKTI) Vol. 4 No. 1 (2024): June 2024
Publisher : Teknik Industri Universitas Ma Chung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33479/sakti.v4i1.88

Abstract

Quality control is a vital aspect of product manufacturing, ensuring adherence to predefined standards and meeting consumer expectations. This study focuses on quality control within the cigarette production process, specifically in PT PID Ongkowidjojo, a prominent manufacturer located in Malang, Indonesia. Despite meticulous production processes, defects in cigarette sticks persist, leading to waste of resources, time, and potential degradation in product quality. The research employs Failure Mode and Effects Analysis (FMEA) and Fault Tree Analysis (FTA) to identify, analyze, and propose solutions for defects occurring in the maker machine division. Initial analysis reveals common defects such as glue inadequacy, tears in wrappers, and tobacco density inconsistencies, prompting the need for systematic improvements. Through FMEA and FTA methodologies, root causes of defects are pinpointed, and corrective actions are proposed. Implementation of these measures results in a reduction of Risk Priority Number (RPN) values for major defects, indicating a positive impact on production quality. However, limitations in utilizing gate symbols within FTA are acknowledged, suggesting avenues for future research to optimize analytical techniques. This study contributes to the ongoing discourse on quality control in manufacturing industries, particularly in addressing common defects in cigarette production. By integrating FMEA and FTA methodologies, it offers insights into effective defect mitigation strategies, highlighting the importance of continuous improvement in maintaining product quality and operational efficiency.
Optimization of Tobacco Warehouse Temperature to Reduce Defects in Hand-Rolled Kretek Cigarette Products at PT XYZ Margaretha, Natasha; Ekawati, Yurida; Oktiarso, Teguh
Jurnal Sains dan Aplikasi Keilmuan Teknik Industri (SAKTI) Vol. 4 No. 2 (2024): December 2024
Publisher : Teknik Industri Universitas Ma Chung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33479/sakti.v4i2.92

Abstract

The quality of tobacco is a critical component in cigarette production, with moisture content standards ranging from 18% to 19% to prevent production issues caused by tobacco being too dry or too moist. At PT XYZ, a cigarette manufacturing company, storage room temperature was identified as a key factor affecting tobacco moisture content. This study aimed to determine the optimal storage room temperature to maintain tobacco quality using quality control techniques and experimental design. A correlation test revealed a very strong negative relationship (91.812%) between storage room temperature and tobacco moisture content. Using a Completely Randomized Design (CRD) and a one-way ANOVA test, the analysis showed that the storage room temperature significantly impacted moisture content. The optimal temperature for maintaining tobacco quality was found to be 21˚C. These findings underscore the importance of precise temperature control in ensuring tobacco quality, contributing to improved production processes and product consistency in the cigarette industry.
Co-Authors Azaria, Tabitha Bilianto, Bernandus Yoseph Clarissa Soejanto, Jessica Dharmawan, Lauretius Danny Gunawan, Evelyn Margaretha, Natasha Natasha, Felisitas Nugroho, Didit Prasetyo Oxamudra, Levana Prabowo, Muhammad Sigit Pramono, Elvina Purnomo , Purnomo Purnomo Putrianto, Novenda Putrianto, Novenda K. Putrianto, Novenda Kartika Sasmitha, Cendana Anggun Saw Shu Zhen, Angelica Audrey Soejanto, Jessica Clarissa Sunday Noya Sutrisno, Iddo Christian Tawiri, Ndeva Helmi Teguh Oktiarso, Teguh Valevi, Rendriana Rosa Yolanda, Metta Yuswono Hadi