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Jurnal Ilmiah Teknik Industri
Published by Universitas Muhammadiyah Surakarta
ISSN : 14126869     EISSN : 24604038     DOI : -
Core Subject : Engineering,
Industrial & Manufacturing Engineering
Jurnal Ilmiah Teknik Industri is a scientific journal that aims to participate in developing the scientific field of Industrial Engineering, contains the results of research and theoretical study from lecturers, researchers and industry practitioners. Jurnal Ilmiah Teknik Industri is administered by the Department of Industrial Engineering, Faculty of Engineering, Universitas Muhammadiyah Surakarta and published by the Muhammadiyah University Press (MUP).
Arjuna Subject : -
Articles 22 Documents
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Search results for , issue "Vol. 21, No. 2, December 2022" : 22 Documents clear
Selecting The Best Broiler Chicken Supplier of PT Sentral Unggas Perkasa Using Analytical Hierarchy Process and Weighted Product Methods Yuniar Farida; Putri Krismadewi; Dian Yuliati; Hani Khaulasari
Jurnal Ilmiah Teknik Industri Vol. 21, No. 2, December 2022
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v21i2.18045

Abstract

PT SUP is one of the companies engaged in trading broiler chicken products. Supplying broiler chickens to PT SUP sometimes results in product instability, and some conditions are inadequate; the financing process is not by income or obstacles that occur when serving customers. So this can disappoint the customers of PT SUP. This study aims to select suppliers for 4 out of 6 breeders chosen as the best suppliers and will get a reward from PT SUP to improve the performance and product results of the suppliers. The selection of the best supplier is based on the criteria that have been owned, namely Based on Curriculum Vitae (CV), location of the cage, capital, and service. The six suppliers come from 3 (each city has two suppliers), namely Lumajang, Lamongan, and Kediri. In this study, the author uses the AHP (Analytic Hierarchy Process) method to produce a consistent value of comparison results. It can be continued with the WP (Weighted Product) approach to get the value of the V vector for ranking alternatives. PT SUP will beard the results of the selection of the best four suppliers. The best supplier of PT SUP are Y1, Y4, Y2 dan Y3. Combining these two methods is a form of contribution to the MCDM enrichment.
Selection of Non-Thermal Technology for Honey Pasteurization Machine Using Multi-Criteria Decision Making Muhammad Dani Setiawan; Lobes Herdiman; Taufiq Rochman
Jurnal Ilmiah Teknik Industri Vol. 21, No. 2, December 2022
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v21i2.19606

Abstract

Abstract.  Honey is a natural food product from a sweet viscous substance formed from flower nectar by honey bees. Honey processing using the pasteurization method has limitations, one of which is temperature. As a result, fungi and spores present in honey have not been eliminated. Non-thermal technology (NTT) is a solution to this limitation, because NTT is a process that applies little or no heat, with the aim of food receiving microbial inactivation, and can extend life, maintain physical quality, nutrition, and sensory freshness. NTT is commonly used in industry, namely in High-Pressure Processing (HPP), Pulsed Electric Field (PEF), Pulsed Light, Cold Plasma (CL), and Ultra Sound (US). Adjustment to the characteristics of honey is the reason for choosing non-thermal technology. The selection was carried out using the MCDM method, which integrates AHP-TOPSIS. The result is PEF being the selected NTT with a relative closeness of 0.773.
Integrating Lean Implementation and Relayout Design for Efficiency Improvement Muhammad Ikhlasul Amal; Nina Aini Mahbubah
Jurnal Ilmiah Teknik Industri Vol. 21, No. 2, December 2022
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v21i2.19748

Abstract

Eliminating non-value-added (NVA) activities is a comprehensive solution to achieve efficiency in manufacturing industry production processes. Inefficiency arises whether the production facility and equipment are recent or timeworn. Division. Soybean Production PT. YZ seeks to evaluate the inefficiencies in the relatively new soybean production and packaging plan. The incompatibility of the layout of the production floor facilities was identified as the leading cause of the inability of the Soybean Production Division to meet consumer demands. This study aims to make the production floor layout based on material handling costs, provide good layout alternatives, minimize lead times, and increase cycle efficiency in production processes. The research method integrates Systematic Layout Planning (SLP) and the Lean Manufacturing approach. Value Stream Map (VSM) as a study result distinguishing waste, namely motion and waiting for the material transfer process, which leads to non-value added activity. The best alternative layout proposal was obtained, namely the second Alternative, with the results of minimizing material handling costs by 26% and time-wasting by 19%. VSM and Relayout design provide significant improvement in eliminating losses as well as efficiency improvement.
The Effectiveness Level Analysis of Flask Less Molding Machine Using Overall Equipment Effectiveness (OEE) as An Improvement of Machine Productivity Much. Djunaidi; Calvin Athallaric; Hafidh Munawir
Jurnal Ilmiah Teknik Industri Vol. 21, No. 2, December 2022
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v21i2.20633

Abstract

CV. Okabawes Karya Logam is a metal foundry company in Ceper, Klaten, Central Java, Indonesia that uses automatic moulding machines. This company has implemented Total Productive Maintenance which is useful for increasing the overall effectiveness of the company. The use of Flask Less Horizontal Moulding Machine in production to make product moulds is one of the breakthroughs to achieve this effectiveness. However, the usage of the Flask Less Horizontal Moulding Machine cannot be maximized due to several problems. This research was conducted on the Flask Less Horizontal Molding Machine due to the large number of defects and downtime that often occur on machines which aim to measure the value of effectiveness by collecting some supporting data. This research begins by measuring the Overall Equipment Effectiveness (OEE) value, then identifies the root of the problem with the Fishbone Diagram which has 5 main factors that influence it and continues to provide solutions to the five root causes of the problem. The results showed that the Overall Equipment Effectiveness (OEE) value on the Flask Less Horizontal Moulding Machine was 58,53%, this value is below the standard because the Japan Institute of Plan Maintenance (JIPM) set a standard of 85%. There are also 5 main root causes of the Fishbone Diagram identification that have been given solutions.
Human Reliability Analysis on Fresh Fruit Bunches Sorting Workers Agustina Hotma Uli Tumanggor; Chynthia Eka Fayuning Tjomiadi; Madschen Sia Mei Ol Siska Selvija Tambun
Jurnal Ilmiah Teknik Industri Vol. 21, No. 2, December 2022
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v21i2.19713

Abstract

Demand for Crude Palm Oil (CPO) at PT. Wijaya Borneo Tiganna for this year has increased. However, the increase in production was not in line with human error of 74% in the Fresh Fruit Bunches (FFB) Sorting Department from the 80% minimum percentage desired by the company. The purpose of this study was to analyze the reliability value of sorting workers. The method used is the Human Reliability Assessment Method seen from related tasks and context related to identify Human Error Probability (HEP) with a fault tree to provide recommendations for reducing human error. There are 3 types of rework in the TBS Sorting Section. The HEP using the HEART method is 1.1103148 while the CREAM method is 0.10608. The reliability of workers in carrying out tasks can still be improved with skills and accuracy in the sorting and grading of FFB.
Ergonomic Risk Evaluation to Minimize Musculoskeletal Disorders in SMEs Leather Shoes at Indonesia Indah Pratiwi; Tiara Adhitama
Jurnal Ilmiah Teknik Industri Vol. 21, No. 2, December 2022
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v21i2.19502

Abstract

This study was carried out at SME for the purpose of making leather shoes in the manufacturing process. Pattern, upper printing, finishing, and 16 other workstations are among the three workstations. Production operations are performed manually in a seated position that includes squatting, bending, or standing position that is repeated, and workers operate at average to rapid speeds for 7 hours each day. This signifies that the action is hazardous and may result in Musculoskeletal Disorders (MSDs). The Job Strain Index (JSI) and Muscle Fatigue Assessment (MFA) methodologies will be used in this study to identify working posture conditions. The MFA method is used to analyze the level of effort, duration of labor, and frequency of work motions in order to determine muscle tiredness in each section of the worker's body. The 14 activities were subjected to the JSI method investigation, and the high risk was achieved by printing the top right hand SI 20.25 and installing the right-hand sole 13.5. The MFA approach was used to accept high to extremely high-risk body parts, such as the back, neck, and right hand, and make recommendations for how to reduce muscle fatigue in each body part. The findings of this study can be used to improve the upper printing station's design, as well as the table design for designing and drawing patterns and the chair design for sewing activities.
Experimental Ergonomic Approach in Analysis of Student Mental Workload in Using Learning Management System Aiza Yudha Pratama; Achmad Zaki Yamani; Syauqie Muhammad Marier; Nurchasanah Nurchasanah; Muhammad Alim Safa'at
Jurnal Ilmiah Teknik Industri Vol. 21, No. 2, December 2022
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v21i2.19742

Abstract

Student interactions with the devices and software used can result in excessive mental workload, which of course also has an impact on decreasing productivity and work functions and indirectly harms student health, as well as student interactions in using the Learning Management System (LMS). Which is expected to continue to be utilized and developed to achieve greater convenience and profit, LMS is expected to continue to be developed and utilized optimally. This study is intended to analyze the mental workload felt by students in the learning process through LMS. An experimental ergonomics approach is used in this study by applying the modified NASA-TLX method. The results of the research experiment show that students feel a high mental workload when using the assignment module, quiz module, and forum module on the LMS, these modules produce a high mental workload due to cognitive difficulty, instruction complexity, and work habits.
Factors Affecting Green Purchase Behavior of AMDK Aqua Life on College Student Consumers in Surakarta City Evy Nuryudhiani; Lobes Herdiman; Susy Susmartini
Jurnal Ilmiah Teknik Industri Vol. 21, No. 2, December 2022
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v21i2.19608

Abstract

The fundamental accomplishment of the Sustainable Packaging Coalition (SPC) concept is to replace unnecessary plastics used in the packaging and towards a green packaged product concept that is sustainable and environmentally friendly. Aqua Life's innovative bottled water contributes to achieving sustainability with packaging made from recycled and recyclable materials. Consequently, this study extended the Value Attitude Behavior (VAB) model by using the following construct: environmental consciousness, attitudes toward environmental issues, attitudes toward eco-social benefits, green product information, green product quality, availability of desired green packaged products, and green product attributes; to explain consumers’ green purchase behavior. This study was to survey 251 college students in Surakarta city. The data were analyzed using the Partial Least Square-Structural Equation Model (PLS-SEM) method. The results show that environmental consciousness, attitudes toward environmental issues, green product information, availability of desired green packaged products, and green product attribute as a significant predictor
Green Supply Chain Management Performance Measurement in Palembang Rubber Industry Masayu Rosyidah; Anindita Rahmalia Putri
Jurnal Ilmiah Teknik Industri Vol. 21, No. 2, December 2022
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v21i2.19624

Abstract

Rubber is one of the non oil-gas product from South Sumatera. However, several companies in this sector are not yet concerned with environmental aspects. Most companies have a profit-oriented goal regardless of environmental aspects especially waste management. The environmental aspect has not been integrated into the supply chain in practice so that its implementation has not been effective. Green supply chain management is a way to integrate it. Applications of green supply chain management in companies could help to minimize the impact of environmental pollution. However GSCM performance measurement has not been widely carried out in the rubber processing industry, especially those located in South Sumatra. So the aim of this research is to analyze the performance of GSCM using the green SCOR model. The results showed that the value of GSCM performance in PT. Sunan Rubber Palembang is categorized as average with a value of 64.03.
A Stochastic Integrated Inventory Model Single Supplier-Single Retailer in Periodic Review with Losing Flexibility Cost Rizqi Afrizal; Utaminingsih Linarti
Jurnal Ilmiah Teknik Industri Vol. 21, No. 2, December 2022
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v21i2.19752

Abstract

Efficiency in the supply chain can be established by integrating the supplier-retailer inventory policy. This article proposes the integrated inventory model between supplier-retailer under stochastic demand. This model aims to determine the optimal review period and calculate the total inventory cost, including some defective items, backorder price discounts, and losing flexibility costs. We assume that the retailer can order  'n' times for every 'm' shipment from supplier to retailer in each production cycle under a periodic review. Stochastic conditions can cause sudden changes in orders by the retailer in large quantities, eventually forcing the supplier to reduce their setup policies. This condition makes the retailer be charged a losing flexibility cost as compensation for the reduction setup pushed by the supplier in a long-term partnership contract. Based on numerical examples and sensitivity analysis, the percentage of defective items in each shipment from supplier to retailer significantly affects integrated total inventory cost.

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