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Redaksi INDUSTRIKA : JURNAL ILMIAH TEKNIK INDUSTRI Fakultas Teknik Universitas Tulang Bawang (UTB) Lampung Jl. Gajah Mada. No. 34 Kotabaru, Bandar Lampung 35121 Tel / fax : (0721) 252 686 / (0721) 254 175
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INDONESIA
Industrika : Jurnal Ilmiah Teknik Industri
Published by Universitas Tulang Bawang
ISSN : 27764745     EISSN : 25795732     DOI : https://doi.org/10.37090/indstrk.v5i1
Core Subject : Economy, Science, Engineering,
Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering
INDUSTRIKA is a research journal which facilitates the publication of scientific articles in the field of Industrial Engineering. The published articles in INDUSTRIKA can be the result of research and literature review. Some of the topics are including: Business and strategy; decision analysis Engineering economy; Environmental issues Facility location; layout; design; materials handling Forecasting; production planning/control Human factors; ergonomics; safety Human resources management ICT and information systems Innovation; knowledge management; organizational learning Inventory; logistics; transportation; Manufacturing; control; automation Product/process design and management Project/operations management; Service systems/management; modeling/simulation
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 345 Documents
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Analisis Kualitas Briket Biomassa dari Limbah Sekam Padi dan Daun Kering sebagai Sumber Energi Baru Terbarukan Apriani, Enda; Andika, Markus Nanda
Industrika : Jurnal Ilmiah Teknik Industri Vol. 9 No. 1 (2025): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v9i1.1635

Abstract

Rice husk waste and dry leaves can be found all around us. If not managed properly, it can pollute the environment. For this reason, this waste can be used to make products with economic value, for example briquettes are an alternative energy source. The trial design for making briquettes in this study used a comparison ratio (75: 25). Mixing rice husk charcoal and ground dry leaves with a ratio of 75% rice husk charcoal and 25% dry leaf charcoal, as well as adding 5% tapioca adhesive and 30% water. The briquette compression test results show that sample 1 with a maximum force of 6038.5 N has the highest compression value of 9.67 Mpa. Sample 2 with a maximum force of 713.46 N produces a compression value of 1.88 Mpa, while sample 3 with a maximum force of 1121.14 N has a compression value of 3.00 Mpa. The result is that sample 1 has the highest pressure value. The results of observing the microstructure using SEM testing showed that the size was larger, namely at 50x magnification compared to other particle size magnifications (300x, 500x 800x, and 1,000x), namely 500 µm.  Keywords: Briquettes, dry leaves, pressure test, rice husk waste, SEM test  
Perencanaan Bahan Baku Produksi Menggunakan Metode Material Requirement Planning (MRP) Studi Kasus Teh Botol Sosro Simanjuntak, Sarah Stefhanie; Zaharuddin, Zaharuddin; Puspita, Riana
Industrika : Jurnal Ilmiah Teknik Industri Vol. 8 No. 4 (2024): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v8i4.1636

Abstract

Raw material inventory is a serious problem for manufacturing companies. Shortages of raw materials can stop production, while inventories that are too large cause high storage costs and result in idle capital. Therefore, research entitled "Planning Raw Materials for Production of Sosro Bottled Tea Using the Material Requirement Planning (MRP) Method at Sinar Sosro Deli Serdang" was carried out. The aim of this research is to determine the planning of the amount of raw materials needed for production. This research is descriptive with primary and secondary data. The research results show that the raw material requirements for the production of Teh Botol Sosro for the period January 2022-December 2022 are as follows: Sugar 5,213,184 kg, Dry Tea 365,329 kg, Water 6,455,592,000 ml, Bottle Cap/Crown Cork 2,934,600 pcs, Bottles 2,934. 600 pcs, and Krat 1,222,650 pcs. Lot size calculations using the Lot for Lot (LFL) and Period Order Quantity (POQ) methods show that the POQ method is more economical with a minimum cost of IDR 1,944,412.59. Keywords: Lot For Lot, Material Requirement Planning (MRP), Period Order Quantity, Raw Material Planning
Minimasi Waktu Tunggu pada Proses Disassembly Engine dengan Pendekatan Lean Manufacturing di PT OPQ Seviolla, Geyska; Muqimuddin, Muqimuddin; Purba, Arini Anestesia; Ismail, Andi Idhil
Industrika : Jurnal Ilmiah Teknik Industri Vol. 8 No. 4 (2024): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v8i4.1669

Abstract

Balikpapan is one of the regions in Indonesia that has a remanufacturing business center. PT OPQ is one of the remanufacturing companies with an engine disassembly process that experiences over lead time for 3 years which reaches 2,003 minutes which exceeds the standard for 1,845 minutes due to non-value added activities such as idling, waiting for components, waiting for component files, arranging components, and chatting in the engine disassembly process. This research aims to minimize the time of non-value added activities in the engine disassembly process. This research method uses lean manufacturing with identification stages with process activity mapping, value stream mapping, pareto diagram, and fault tree analysis, as well as providing proposed recommendations. The results showed a decrease in engine disassembly cycle time from 1,874 minutes to 1,615 minutes. Proposed improvements that can be recommended in the form of engine scheduling produce production capacity per month for 1 operator can complete 6 engines, arrange components according to the type of engine components that have been divided for each area, and the application of shortest job first which results in a decrease in lead time between processes which originally reached 1,985 to 1,051 minutes or decreased by 1,900 minutes for the total from before and after improvement. Keywords: Lead Time, Lean Manufacturing, Waste Waiting
Rancang Bangun Alat Pengering Helm Berbasis QFD beserta Analisis Keuangan Kamal, Naufal Izzul; Riskianto, Aldinu; Pradana, Raihan Yufi; Akhyar, Muhammad Faiq Nadhliful; Nugroho, Dony Satriyo
Industrika : Jurnal Ilmiah Teknik Industri Vol. 9 No. 1 (2025): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v9i1.1675

Abstract

UMKM Helmet and Care is a type of business engaged in the field of helmet-washing services. The helmet drying process is still done manually, resulting in the business process not being able to run optimally. So a solution is needed in the form of a helmet dryer that suits the needs of UMKM. The design of the helmet dryer using the QFD method resulted in the helmet dryer being equipped with a DHT22 sensor and a Thermostat sensor. , the material used is Stainless Steel, the price of the helmet dryer is IDR 5,500,000, the dimensions of the tool are based on worker anthropometry, namely 140 cm = frame height, 70 cm = frame width, 64 cm = frame leg height, 60 cm = frame length, 60 cm = frame length, 83 cm = frame length. The automatic helmet dryer has proven effective in reducing humidity from 80% to 30% in 30 minutes. During the process, the temperature inside the helmet rises from 25°C to 35°C, thus accelerating the drying and showing a positive correlation between decreasing humidity and increasing temperature, Cost analysis calculation using BEP and NPV methods, namely, Investment cost = 3,550,000 can be met for 1.6 months calculated using the BEP method, the results of the NPV calculation in the 36th month produce Pv of proceed = 48,472,051. NPV of 44,922,571. NPV is positive, so the project proposal should be accepted. Keywords: Automation, BEP, NPV, QFD
Model Sistem Antrean Menggunakan Pola Single Channel-Single Phase Dengan Promodel Pada Antrean SPBU 34.31349 Karawang, Jawa Barat Anbiya, Muhammad Primasuri; Ibrahim, Ibrahim; Purwani, Ayu Putri
Industrika : Jurnal Ilmiah Teknik Industri Vol. 8 No. 4 (2024): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v8i4.1704

Abstract

This study aims to optimize the queuing system at SPBU 34.41349 Karawang, Jawa Barat by using a single channel-single phase pattern model using ProModel software. An efficient and effective queuing system is essential to minimize customer waiting time and increase customer satisfaction. In this study, analyzed queue data at SPBU 34.41349 to understand the characteristics of queues and modeled them using ProModel.  Identify factors affecting customer wait times and estimate queuing system performance based on simulations performed with ProModel. The results showed that the productivity rate of operators was 96% and the unemployment rate was 4%. This shows that the operator's productivity level is quite good. However, because there is only 1 filling station for motor vehicles, the type of pertalite fuel causes a buildup of queues. Therefore, to reduce queuing time and maximize service is to add one counter on each server which is expected to increase the efficiency and effectiveness of the queuing system at SPBU 34.41349 Karawang, West Java. Keywords: Promodel, Queuing system, Single channel, Statistical test
Analisis Risiko Kecelakaan Kerja Menggunakan Metode JSA dan HIARO di Departemen Energy Center PT. Indo Bharat Rayon Nopiasadi, Muhamad Nugrah; Kusuma, Bintang Nidia; Akbar, Muhammad Ali
Industrika : Jurnal Ilmiah Teknik Industri Vol. 9 No. 1 (2025): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v9i1.1709

Abstract

This study aims to analyze the potential risks of workplace accidents in the Energy Center Department of PT. Indo Bharat Rayon using the Job Safety Analysis (JSA) and Hazard Identification Assessment of Risk and Opportunities (HIARO) methods. The research identifies the risks faced by employees, assesses the impact of these risks, and provides appropriate control recommendations. The research methodology involves collecting workplace accident data, conducting risk analysis using JSA and HIARO, and assessing risks before and after the implementation of controls. The results show that high-level risks were reduced from 1 to 0, and medium-level risks from 48 to 0 after the controls were applied. The remaining risks were categorized as low risks, which do not require immediate action. The recommended risk controls include elimination, substitution, engineering controls, administrative controls, and the use of personal protective equipment. The implementation of safety culture programs, such as the Safety Program and Job Safety Training, is also suggested to enhance workplace safety. This study provides benefits to the company by identifying and reducing workplace accident risks, and to researchers and universities by increasing knowledge and offering practical references on workplace safety. Keywords: HIARO, JSA, Occupational Accident Risk, OHS, Risk Control
Analisis Simulasi Sistem Antrian Pemesanan Makanan di Restoran di Kota Cilegon Syaharani, Alifhia Desta; Saputro, Muhammad Rifki; Noor, Firmansyah Muhammad; Dellanovia, Sifa; Shofa, Mohamad Jihan
Industrika : Jurnal Ilmiah Teknik Industri Vol. 8 No. 4 (2024): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v8i4.1710

Abstract

The purpose of this study is to assess the level of crowding in service in restaurants in Cilegon City and to propose improvements to the queue system based on the appropriate queue model for the restaurant. The method used is the Discrete Event Simulation (DES) method. The simulation approach allows for an in-depth and direct analysis of the system over a period of time, providing a realistic picture of the situation on the ground.  The data used in this study is primary data, including customer arrival time data and service time (server) data measured using a stopwatch. The results of the study showed that there was a queue with an average of 10 people and a server busyness rate  of 99.32%. This high level of busyness can result in a decrease in customer satisfaction due to long waiting times. Based on the results of the two scenarios tested, namely scenario one with the addition of 1 server and scenario two with the addition of 2 servers, the first scenario involving the addition of one server/cashier was chosen because it succeeded in reducing the number of customers with a busy level of 70.68%. Keywords: Arena, restaurant queue system, simulasion, server, utilization
Evaluasi Pengiriman Dangerous Goods: Metode Analisis Six Sigma-DMAIC Somadi, Somadi
Industrika : Jurnal Ilmiah Teknik Industri Vol. 8 No. 4 (2024): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v8i4.1741

Abstract

During the delivery process of dangerous goods, several problems were found which caused company losses and consumer dissatisfaction. The aim of this research is to identify problems, factors causing problems and efforts to improve the dangerous goods delivery process. The research uses the six sigma analysis method with the DMAIC concept. Based on the results of the analysis, there were three problems that occurred, namely containers and trucks being rejected by customers, PIC not inputting MSDS and expired MSDS, and transporting dangerous goods not using trucks that had a B3 permit. The factors causing these three problems are supervision, behavior of drivers and PICs, feasibility and suitability of containers and trucks, timing of container selection, updating and merging MSDS, B3 permits, and number of B3 trucks. Efforts to improve delivery of dangerous goods include training on dangerous goods, socialization of HSE standards, maintenance of containers and trucks, changing container selection schedules, managing MSDS, obtaining B3 vehicle permits, auditing trucking vendors, and collaborating with other trucking vendors. Keywords: Dangerous Goods, DMAIC, Freight Forwarder, Six Sixma
Optimasi Logistic Cost dari Perusahaan Crossdock Menggunakan Pendekatan Linear Programming dengan Permintaan Stokastik Maryadi, Deri
Industrika : Jurnal Ilmiah Teknik Industri Vol. 9 No. 1 (2025): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v9i1.1752

Abstract

Efficiency within a company must be enhanced to maintain competitiveness and business sustainability, particularly in logistics firms. In logistics processes, minimizing costs is a critical indicator of operational efficiency. This study applies optimization through linear programming to a cross-dock company characterized by fluctuating demand, focusing on a fast-moving product. The analysis begins by calculating the minimum and maximum demand based on twice the standard deviation from the mean, followed by determining the optimal scenarios for each depot. The results indicate that, for the eight depots, the majority of the truck selection involved using single-axle trucks. Consequently, the total cost from the first to the seventh week was Rp. 1,785,000,000, while the LP simulation results indicated a total cost of Rp. 1,214,000,000, representing a potential cost saving of Rp. 554,000,000. Keywords: Cross-Dock, Linear Programming, Logistic Cost, Optimization
Strategi Peningkatan Rantai Pasok UMKM Repro dengan Pendekatan Interpretive Structural Modelling Sari, Lidia Puspita; Aulia, Arshinta Wilda; Talitha, Tita
Industrika : Jurnal Ilmiah Teknik Industri Vol. 9 No. 1 (2025): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v9i1.1767

Abstract

The maggot cultivation industry managed by Repro MSMEs experiences various challenges such as, there is no integration between supply chain actors and Repro MSMEs are directly involved as producers and retailers because they market directly without going through intermediaries. The research respondent is an expert in the supply chain field totaling 5 people, data collection is carried out by a brainstorming process then Focus group discussion (FGD) and through a closed questionnaire. This research aims to create a strategy to improve the supply chain that is comprehensive and data-based in order to be more optimal. The ISM method is a strategic decision-making step to identify the interrelationships between the most influential variables. ISM data processing uses the help of ISM Professional 2.0 software. This research has successfully identified and modeled supply chain strategies from ten variables. Based on ISM modeling, the most significantly influential variable is variable A1, and at the top level is variable A9, this means that variable A9 becomes an entity with a low level of urgency. This research is expected to facilitate MSME owners to make decisions in determining priorities as a reference for implementing strategies that must be used in optimizing the supply chain system. Keywords: Interpretive Structural Modeling, MSMEs, Supply Chain

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