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Jurnal Teknik Industri : Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri
Published by Universitas Islam Negeri Sultan Syarif Kasim Riau
ISSN : 2460898X     EISSN : 27146235     DOI : http://dx.doi.org/10.24014/jti
Core Subject : Science, Social, Engineering,
Computer Science & IT Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering
(ISSN : 2460-898X) JTI merupakan jurnal akademik yang dipublikasikan 2 kali setahun, meliputi bulan Juni dan Desember. Tujuan jurnal ini menyediakan tulisan yang memiliki yang fokus pada bidang Teknik Industri. lebih lanjut jurnal ini dipulikasikan oleh Jurusan Teknik Industri Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan syarif Kasim Riau. Tulisan yang diterima merupakan hasil originalitas dan memberikan kontribusi yang belum pernah dipublikasikan sebelumnya.
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 373 Documents
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Measurement of Physical Workload Ergonomic Risk Levels in Work Postures Using the Owas and Reba Methods at PLN UP3 Gresik Hidayati, Nurul; Hidayat, Hidayat; Priyana, Efta Dhartikasari
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.31911

Abstract

This research was conducted at PLN UP3 Gresik to evaluate the sitting posture of employees and determine its alignment with ergonomic standards. The study aimed to improve employee posture to ensure a safer and more comfortable work environment. Sixteen workers participated in the study, which involved observations, interviews, and the distribution of questionnaires to identify issues related to work posture. The OWAS (Ovako Working Posture Analysis System) and REBA (Rapid Entire Body Assessment) methods were employed based on established literature. The findings revealed a mismatch between the design of tables and chairs and ergonomic requirements. According to the OWAS method, the work posture code was 2, indicating the need for corrective action. The REBA method showed angular values of 7 for group A, 4 for group B, and 8 for group C, all suggesting a need for improvement due to musculoskeletal complaints. Data were gathered through Nordic Body Map (NBM) questionnaires and photo analyses of workers' postures. The study concludes that corrective actions are necessary, recommending that the company design seats based on workers' anthropometric data and conduct periodic evaluations to ensure ongoing comfort and safety. Keywords: Ovako Work Analysis System (OWAS), Rapid Entire Body Assessment (REBA), Ergonomics, Work Posture Evaluation
Prevention of Musculoskeletal Disorder (MSDs) at Kakimoto House Japan Lumber Mill Using the Ovako Working Analysis System (OWAS) Method and Design of Work Facilities Janaprasetya, Jip Rayhan Xavier; Ekoanindiyo, Firman Ardiansyah
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.32102

Abstract

The timber industry heavily relies on its workforce, making worker well-being and posture maintenance essential to prevent musculoskeletal disorders (MSDs) resulting from repetitive tasks, non-ergonomic environments, and constrained working conditions. MSDs significantly impact productivity and worker health, necessitating ergonomic interventions like the Ovako Work Analysis System (OWAS). This anthropometric method evaluates worker postures by categorizing body movements into intervals, focusing on the back, arms, and legs, and identifying postures that pose a high risk of injury. At Kakimoto House Japan, where manual material handling (MMH) is predominant, OWAS was applied to analyze and address workers' physical strain, ensuring comprehensive data collection through sufficiency testing. Data analysis using the 5th, 50th, and 95th percentiles provided valuable insights into posture distribution and workload impact. Implementing a new carriage design enabled workers to carry more wood with less effort, reducing physical strain and improving task efficiency. This ergonomic improvement highlights the potential for enhanced productivity and health outcomes in the timber industry.Keywords: Ergonomic, OWAS,MSDs
Designing Standard Operating Procedure (SOP) for Planning and Implementing Machine Maintenance for the Implementation of ISO 9001:2015 Clause 7.1.3 using the Business Process Management (BPM) Method in Hijab Printing Production Kunanti, Rahmi Anugrah; Wiyono, Wiyono; Salma, Sheila Amalia
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.32674

Abstract

Maintenance management is important for production companies that rely on machines as the main infrastructure. UMKM Meflanna, as a printed hijab producer, has not managed machine maintenance routinely and effectively, which impacts the cessation of the production process and the failure to achieve several production targets. This study aims to compile a Standard Operating Procedure (SOP) for planning and implementing machine maintenance using the Business Process Management (BPM) method. The BPI method supports business process improvement by analysing the gap between actual conditions and the requirements of ISO 9001:2015 clause 7.1.3, which is the basis for designing process improvements. This study produces an SOP for Machine Maintenance Planning and Implementation, which includes preventive maintenance planning procedures and corrective and preventive maintenance implementation. It also provides supporting forms to document maintenance information. With structured procedures and better documentation, UMKM Meflanna is expected to maintain production continuity and achieve the set targets. Keywords: Business Process Management (BPM), ISO 9001:2015 clause 7.1.3, maintenance management, Standard Operating Procedure (SOP)
Designing A New Miruki Way Business Branch by Carrying Out A Feasibility Analysis Sofie, Kayla Fadiana; Chumaidiyah, Endang; Suryana, Nanang
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.32074

Abstract

Miruki Way is a culinary business located at Jl. Sukapura No. 14, Dayeuhkolot District, Bandung Regency. It offers various sweet drinks and side dishes accessible to a broad audience. The business owner was planning to open a new branch and is considering various aspects such as market analysis, technical feasibility, and financial viability. Based on the design results, the NPV value obtained using the MARR value of 10.7% is $1,151,288, the IRR value is 44.09%, and the payback period is 4.02 years. Sensitivity testing shows that the new branch is sensitive to decreasing product demand, decreasing selling prices, increasing raw materials, and increasing labor costs. Considering the risk factor of 18.37%, the NPV value is $1,496,970, the IRR value is 44.09%, and the payback period is 4.30 years. In conclusion, the branch opening is deemed feasible based on the positive NPV, IRR exceeding MARR, and the payback period falling within the expected range. Keywords: Feasibility Analysis, Market Aspect, Technical Aspect, Financial Aspect, Sensitivity and Risk Analysis
Predictive Maintenance on Dry 8 Production Machine Line Using Support Vector Machine (SVM) Rasyid, Mohammad Andi; Sukmono, Tedjo; Jakaria, Ribangun Bamban
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.29802

Abstract

Machines are the main element in manufacturing companies, and the role of machine performance is vital in the production process. Downtime problems caused by machine damage can significantly affect company productivity. This research implements the support vector machine (SVM) method for predicting Dry 8 production machine line maintenance, which aims to reduce downtime and increase productivity. The SVM method is known for its high accuracy and low error rate. The evaluation process used four kernel functions: linear, radial basis function (RBF), polynomial and sigmoid. The linear kernel function performed best with 99.8% accuracy, 83% precision, recall, and f1-score. These results show that the SVM method can be a viable solution to improve the efficiency of machine maintenance. Keywords: Confusion Matrix, Machine Learning, Predictive Maintenance, Support Vector Machine 
Jersey Production Quality Control Using Six Sigma and FMEA Methods To Minimize Product Defects Jasmine, Indy Aurelia; Salma, Sheila Amalia; Susanto, Hadi
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.30774

Abstract

CV. Genethics is a company engaged in the field of clothing with a primary focus on product quality and customer satisfaction. Based on production data for September 2022 to September 2023, defective products were still found in the jersey production process, with the percentage of defects exceeding the company's tolerance limit of 2%. The defects often occur include white spots, wrinkles, ink buildup, faded ink, non-uniform color, and shadow lines. This research aims to identify the causes of defects in the production process, find the root of the problem, and provide improvement recommendations to reduce the percentage of defects so that it approaches the tolerance limit set by the company. The research uses Six Sigma and Failure Mode and Effect Analysis (FMEA) methods to analyze the problem. The main factors that cause defects are people, information, and methods. Based on the FMEA analysis, it was found that the cause of failure with the highest RPN value was the absence of written information regarding standard work procedures, which could potentially cause various types of defects. The proposed solution is to design a new Standard Operating Procedure (SOP) supported by additional documentation. This recommendation is expected to reduce the defect rate and improve quality control in the jersey production process. Keywords: Quality, Defects, FMEA, Six Sigma, Jersey Products
Analysis of Body Posture of Rice Processing Warehouse Workers Using OWAS Method (Ovako Working Analysis System) Nopanto, Topan; Rahayu, Ade Astuti Widi; Fathurohman, Fathurohman
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.32541

Abstract

This research assessed the body posture of rice processing workers using the Ovako Working Analysis System (OWAS) method to identify postures leading to high musculoskeletal disorder (MSD) risks. The study observed seven workers in a rice processing warehouse, where 60% of work postures were classified as high-risk (Action Code 4). These postures, frequently involving lifting heavy loads and prolonged bending, significantly contribute to the prevalence of MSD symptoms such as back, arm, and leg pain. Data collection included systematic observation and analysis categorized by OWAS Action Codes. Immediate corrective actions, including ergonomic adjustments and improved training, are essential to mitigate these risks. The findings emphasize the need for ergonomic interventions to enhance worker safety, reduce injury risks, and improve productivity. This research provides valuable insights into the ergonomic challenges in rice processing environments, underlining the importance of regular posture assessments and proactive measures to create safer workplaces.Keywords: Musculoskeletal, Ovako Working Analysis System, Work posture
Designing the Performance Measurement System for A Digital Enterprise using Balanced Scorecard Putri, Salsabila Katya; Sulistyo, Budi; Suryana, Nanang
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.32577

Abstract

The main issue is the absence of a comprehensive KPI system to effectively measure the performance of digital products. Currently, the company PT XYZ unit tracks only two KPIs, such as revenue and total sales. This narrow focus overlooks aspects of achieving business success such as ensuring business fulfillment, business assurance, and employee competence in a growth and agile focus environment. As a result, performance targets are not fully met, and customer satisfaction declines in meeting service level agreements and service level guarantees. This research aims to fill these gaps by designing a performance measurement system using a Balanced Scorecard, and AHP is used for weighing the level of importance. Based on the research, the measurement system was developed, consisting of 7 Strategic Factors (SF), 9 Strategic Objectives (SO), and 12 KPI that are assessed on a quarterly basis. AHP analysis assigns the highest weight to financial perspective (56.60%), SF “market expansion and product innovation” (56.60%), SO “increase the revenue” (29.88%), and KPI “net profit margin growth” (26.72%). Once implemented, this system will standardize digital product performance measurement, aligning with company goals to drive revenue growth and operational efficiency. Keywords: BSC, AHP, KPI, Performance Measurement, and Digital Product
Feasibility Analysis of Cicalengka Tofu Factory Expansion Alam, Adelia Shanty; Hasun, Farda; Suryana, Nanang
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.31540

Abstract

Tofu is a popular and affordable protein source widely consumed across Indonesia. The Cicalengka Tofu Factory in Bandung Regency is experiencing increasing demand, resulting in frequent overtime to meet production requirements. The factory plans to expand its production area by utilizing adjacent vacant land to address this challenge. This study evaluates the feasibility of the expansion, forecasting tofu demand until 2026 using time-series analysis with a single moving average method. The proposed expansion aims to increase production capacity from 264 to 396 tofu planks per day, requiring an investment of IDR 1,551,129,586. Financial analysis reveals that without expansion, the Net Present Value (NPV) over the next three years would be IDR 825,211,554, with an Internal Rate of Return (IRR) of 121%. With the expansion, the NPV increases to IDR 972,087,040, with an IRR of 43%. Incremental IRR analysis further supports the expansion, yielding an IRR of 22%, which exceeds the Minimum Attractive Rate of Return (MARR) of 16.36%. These findings validate the expansion plan as a financially viable strategy to enhance production capacity, minimize overtime, and ensure the factory’s long-term sustainability.Keywords: Feasibility Analysis, Expansion, Cicalengka Tofu Factory, Incremental Analysis
Analysis Of Work Posture Using The Rapid Office Strain Assessment (ROSA) And Rapid Upper Limb Assessment (RULA) Methods In Office Administration Employees Nurul Fajria, Miranti Dewi Sartika; Ismiyah, Elly
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.33569

Abstract

In the modern era, the use of computers has become the main tool in office activities. Employees who spend long periods of time in a sitting position and operating a computer are at risk of various health problems, especially when they do not pay attention to ergonomic aspects while working. Even though ergonomic risks can affect employee health and productivity in the long run. The results of the initial identification with the distribution  of the Cornell Musculoskeletal Discomfort Questionnaire (CMDQ) questionnaire to office administration employees at PT Karya Sidorukun Santosa showed that they experienced complaints such as pain in the head, neck tension, back pain, and difficulty concentrating. This study was conducted to analyze ergonomics risks in office administration employees at PT Karya Sidorukun Santosa using the Rapid Upper Limb Assessment (RULA) and Rapid Office Strain Assessment (ROSA) methods. The results of the RULA analysis showed that 50% of employees needed further investigation with a score of 4, 33.3% needed immediate change with a score of 5, and 16.7% needed immediate action with a score of 7. The ROSA score ranged from 4 to 7, indicating the need to upgrade facilities and workspace layouts to reduce the risk of musculoskeletal disorders. These improvements are important to improve the comfort and productivity of administrative employees. Keywords: Ergonomics, RULA, ROSA, Administrative Employees.

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