Jurnal Sains Ilmu Teknologi Industri (JUSTIN) yang diterbitkan pada pada bulan Oktober 2021 ini, berisi 6 buah jurnal yang merupakan hasil penelitian dari Mahasiswa, Dosen dan Staff Pengajar yang terdiri dari disiplin ilmu teknologi industri. Melalui Jurnal Sains Ilmu Teknologi Industri (JUSTIN) ini, diharapkan dapat memberikan dalam perkembangan ilmu pengetahuan, melalui penelitian empiris dan kajian konsep yang dapat dimuat di Jurnal Sains Ilmu Teknologi Industri (JUSTIN). Pembina : Dr. Ita Mariza (Direktur Politeknik Gajah Tunggal) Ketua Redaksi : Tita Latifah Ahmad, S.T., M.T. Reviewer : Adik Susilo Wardoyo, S.Pd.,M.T. (Internal) Dr. Dharmanto (Internal) Dr. Eng. Ari Kuswantori, S.T., M.T. (External) M. Ridwan Arif Cahyono, S.T., M.T. (Internal) Henry Prasetyo, S.T., M.T. (Internal) Iham Taufik Maulana, S.T., M.T. (Internal) Puguh Elmiawan, S.Pd., M.T. (Internal) Ahmad Zohari, S.T., M.Eng. (Internal) Muhammad Ibnu Rusydi, S.Pd., M.Pd. (Internal) Indah Puspa Murni, S.T., M.Sc. (Internal) Ir. Ardiyanto, S.T., M.Sc., Ph.D., AEP., IPM (External) Dr. Ir. Euis Nina Saparina Yuliani, ST., MT., IPM (External) Zakiyyan Zain Alkaf, S.T., M.Sc. (External) Yusita Attaqwa, S.Pt., M.T (External) Editor Dendi Kurniawan, S.T. Aluysius Marwoto, S.E. Rafika Risanty, S.Hum., M.M. Muhammad Rikza As-subhy, A.Md.
Analisis Cycle Time dan Waste Pada Proses Extruder dengan Pendekatan Lean Manufacturing
Perusahaan industri terus berupaya mengembangkan proses produksi dengan harapan proses tersebut mampu menyeimbangkan perkembangan yang ada. Salah satu harapan yang diinginkan dalam suatu perusahaan industri adalah meningkatkan produktivitas perusahaan. PT. BIN, sebuah perusahaan manufaktur yang bergerak di bidang produksi Fan belt/V-belt dan conveyor belt, mendapat tekanan untuk terus meningkatkan produktivitas akibat penurunan produktivitas dan banyaknya pemborosan pada mesin extruder yang terlihat pada cycle time yang tidak seimbang dengan takt time. Hal ini mengakibatkan loss time dan loss material yang cukup banyak dalam prosesnya. Oleh karena itu, perlu dilakukan analisis terkait pengurangan waktu siklus yang berlebihan tersebut. Analisis ini akan membantu dalam mengidentifikasi faktor-faktor penyebab ketidakseimbangan dan mencari solusi yang efektif untuk meningkatkan efisiensi dan produktivitas mesin extruder, sehingga perusahaan dapat mengurangi pemborosan dan meningkatkan kinerja keseluruhan.
Hak Cipta (c) 2026 Jurnal Sains Ilmu Teknologi Industri
KAJIAN PENGURANGAN WAKTU SETUP DI MESIN FLIPPING DENGAN PENDEKATAN LEAN MANUFACTURING
Penelitian ini bertujuan untuk mengurangi waktu setup pada mesin flipping di departemen long size PT BIN dengan pendekatan Lean Manufacturing. Permasalahan yang dihadapi adalah sistem penyimpanan canvas yang tidak terorganisir, menyebabkan pekerja harus mencari dan memindahkan tumpukan material, sehingga meningkatkan waktu setup dan menyebabkan waste. Metode Single Minute Exchange of Die (SMED) digunakan untuk mengidentifikasi dan mengubah aktivitas internal menjadi eksternal serta menyederhanakan proses setup. Selain itu, dilakukan perancangan rak penyimpanan canvas yang sesuai dengan jumlah kebutuhan dan menerapkan sistem First In First Out (FIFO) untuk memastikan aliran material lebih teratur. Hasil penelitian menunjukkan bahwa waktu setup mengalami penurunan dari 815,90 detik menjadi 695,70 detik atau berkurang sebesar 15%. Selain itu, aktivitas kerja setup flipping berkurang dari 14 aktivitas kerja menjadi 12 aktivitas kerja dengan menghilangkan aktivitas non-value added. Hal ini menunjukkan peningkatan efisiensi proses setup. Sehingga penelitian ini memberikan kontribusi terhadap peningkatan produktivitas dan efisiensi aliran material di lini produksi.
Rancang Bangun Alat Inspeksi Green Tire dengan Pendekatan Ergonomi pada PT.XYZ
Industri manufacturing mengalami peningkatan pesat yang ditandai dengan munculnya sektor industri di berbagai daerah. Peningkatan ini tidak terlepas dari penggunaan teknologi canggih, terutama dalam produksi. Namun, teknologi juga menghadirkan masalah, terutama terkait alat bantu. Beberapa kasus penyakit akibat kerja disebabkan oleh ketiadaan atau penggunaan alat bantu yang tidak ergonomis. PT. XYZ, salah satu pemain utama di industri manufacturing, mengalami masalah serupa, yaitu tidak adanya alat bantu di area assembly line untuk pemeriksaan green tire. Hal ini menyulitkan pekerja atau inspector dalam melakukan inspeksi. Oleh karena itu, diperlukan alat bantu inspeksi green tire agar pemeriksaan dapat dilakukan dengan mudah. Tujuan penulisan ini adalah mengetahui tingkat risiko proses inspeksi sebelum adanya alat pendukung, merancang alat inspeksi green tire yang memenuhi standar keamanan, dan menemukan alat pendukung inspeksi yang ergonomis sesuai postur tubuh pengguna. Metodologi yang digunakan adalah metode eksperimen dengan merancang alat inspeksi green tire berdasarkan data dimensi tubuh yang dianalisis secara ergonomi. Hasil penelitian menunjukkan keberhasilan dalam merancang alat inspeksi green tire. Berdasarkan analisa postur tubuh bagian atas dengan Metode RULA, sebelum rancang bangun, skor risiko adalah 7 (tinggi) dan turun menjadi 4 (rendah) setelah rancang bangun alat inspeksi green tire.
Analisis Kegagalan Mesin (CR02) Menggunakan Failure Mode And Effect Analysis
PT Natra Mining is a mining company that focuses on processing metallic minerals, including gold. The processing of metallic minerals is crucial to ensure the sustainability of the mining business, involving advanced technical and technological stages to convert raw minerals into commercial final products. One of the important machines in this process is the Cone Crusher (CR02), which functions to crush rocks into smaller sizes. This machine faces the problem of high downtime due to various factors, such as damage to the liner, spring feeder, and difficulty in crushing materials mixed with mud. This research aims to analyze the causes of downtime and offer a more effective maintenance strategy using the FMEA (Failure Mode and Effect Analysis) method which helps identify problems, including the use of composite rubber springs which are more durable than steel springs. The analysis results show that replacing parts with composite rubber can reduce downtime and maintenance costs. This research is expected to increase operational efficiency and support the achievement of PT Natra Mining's production targets.
MONITORING DEBIT ALIRAN SISTEM PENDINGIN MESIN COOL RUNNER 2000 CC DEPARTEMENT MOLD PT RIC
Penelitian ini bertujuan untuk meningkatkan efisiensi produksi di departemen mold PT RIC dengan fokus pada monitoring debit aliran sistem pendingin mesin cold runner 2000 cc. Masalah utama yang dihadapi adalah penyumbatan aliran air pada Water Temperature Control (WTC), yang menyebabkan overheat dan produk tidak sesuai standar (NG), serta peningkatan waste, terutama pada part FASI-007. Penelitian ini menguji perbedaan jumlah NG sebelum dan sesudah pemasangan flowsensor menggunakan uji Wilcoxon, dan menghitung payback period untuk investasi tersebut. Hasil penelitian menunjukkan bahwa pemasangan flowsensor signifikan mengurangi jumlah NG. Selain itu, perhitungan payback period menunjukkan bahwa investasi ini memiliki jangka waktu pengembalian yang layak. Dengan penggunaan flowsensor dan sistem Programmable Logic Controller (PLC), monitoring aliran air WTC menjadi lebih akurat dan efisien, meningkatkan produktivitas, dan mengurangi jumlah produk NG serta waste. Hasil penelitian ini memberikan kontribusi positif terhadap daya saing industri, memajukan teknologi produksi, dan menciptakan lingkungan produksi yang lebih efisien dan berkelanjutan di PT RIC.
ANALISIS PERANCANGAN POSISI VALVE PADA PENAMBAHAN JALUR RAW WATER DENGAN MENGGUNAKAN METODE REBA DAN ANTROPOMETRI
Each pump that is installed has a piping system that functions as a place for liquid or fluid to flow. Each series of pipes has a valve as a tool to regulate flow and is often operated manually without the use of any tools, so it is necessary to design valve positions according to body posture to prevent Occupational Diseases (PAK). Currently, PT ARN has a pump with a valve position that is below so that the operator has to bend down when operating the valve. The position of the valve on the pump has the potential for occupational diseases because only 3 operators can open and close the valve. This study aims to design a new raw water line valve position design that is ergonomic and reduces fatigue and the risk of injury at work. The method used to analyze body posture is the Rapid Entire Body Assessment (REBA). This research was carried out by taking photos of workers' body positions when the valve opening and closing activities took place. The anthropometric data used to design the work aids needed is the data of all people working in the reagent mixing area, namely as many as 5 people. The Rapid Entire Body Assessment (REBA) score for the initial valve position work posture obtained a score of 11, with a high level or high level this work position has a high risk of injury to the muscles and the need for a change in work position as soon as possible or right away. Improvement of work posture by making a new valve position for the raw water line, and assessing the working posture of the worker when opening and closing the valve for the new raw water line, the final result is a REBA score of 3 with a low level indicating a very good position and does not cause injury to the muscles. There is a decrease in the REBA score by 8 points from the valve position on the old raw water line.
Hak Cipta (c) 2025 Jurnal Sains Ilmu Teknologi Industri
ANALISIS POSTUR TUBUH MENGGUNAKAN METODE REBA DAN PERANCANGAN TIRE LIFTER MENGGUNAKAN METODE ANTROPOMETRI
This research was conducted at the On Vehicle Test (OVT) Department which is part of the R & D PT. XYZ, assigned at the Proving Ground, Karawang. There is a problem that exists when employees are changing SUV tires. Rapid Entire Body Assessment (REBA) is a method in the field of ergonomics that is used quickly to assess the posture of the neck, back, arms, wrists and legs of an employee. REBA will be used to evaluate employee posture. In the measurement before repairs were carried out, a REBA value of 11 was obtained, which means that this condition is dangerous, so inspection and changes are needed right now. After submitting a proposal to design a Tire Lifter, improvements will be made using the Anthropometric approach, so that the dimensions of the Tire Lifter are 84 cm, 82 cm wide, and 135 cm table height. After making repairs, REBA testing was carried out. Based on testing, the REBA value after repair is 1, so it is very acceptable and no further action is needed
RANCANG BANGUN LIFT HOIST KAPASITAS 1 TON PADA MESIN IS-10 DI PT. XYY DENGAN METODE QFD
The purpose of this study is to provide an overview of the design of the tool and the steps for designing the proposed tool for the material lifting process on the IS-10 machine using the HOQ (house of quality) method. The use of the method in this study is to design a tool that suits the needs of workers on the IS-10 machine and this study uses a questionnaire, in this study the following results are that consumers or operators want tools that can support work, such as tools that do not cause back pain. , Practical tools, tools do not drain energy, tools do not cost a lot of money, from customer requirements are changed into design requirements and tool manufacture is prioritized based on column weight, namely the lift hoist system (33.45), tool dimensions (32.75), capacity (27.33), materials and tools (18.36)
PERANCANGAN SISTEM ORDER BERBASIS WEB DENGAN BLACK BOX TESTING PADA BAGIAN BONDING AGENT DI PT. RCI
Perkembangan teknologi yang cepat mengubah pelaku industri, mendorong perlunya adaptasi untuk meningkatkan efisiensi dan produktivitas. Penggunaan website sebagai media informasi krusial di industri manufaktur, seperti di PT. RCI. PT. RCI menghadapi tantangan dalam proses pemesanan dan monitoring stok pada Departemen Mould, terutama pada bagian bonding agent yang mengelola proses chemlock. Permasalahan utama adalah efisiensi dan transparansi proses pemesanan yang masih manual, seperti proses order yang dilakukan dengan menghampiri secara langsung atau melakukan komunikasi melalui WhatsApp dan pelaporan mingguan dengan kertas. Kurangnya integrasi dan monitoring real-time menyebabkan ketidakpastian dalam manajemen stok dan kesulitan memenuhi kebutuhan produksi tepat waktu. Penulis merancang website order berbasis Unified Modeling Language (UML) dengan Use Case Diagram dan Activity Diagram untuk mengatasi masalah ini penulis melakukan perancangan untuk pembuatan website untuk proses order dan monitoring. Website ini memfasilitasi proses order dari produksi curing mould dengan database untuk meningkatkan efisiensi operasional PT. RCI, mendukung digitalisasi, dan implementasi prinsip Quality Control Circle (QCC).
ANALISA DAN PERANCANGAN ULANG TATA LETAK GUDANG LOGISTIK PT. INDEXIM COALINDO DENGAN METODE CLASS BASED STORAGE
Rapid Upper Limb Assessment (RULA) is one of the tests commonly used to evaluate working posture for the upper body part. RULA will be used to evaluate the posture of employees when using a desk in the PRL Department at the PT LSA Head Office. In measurements before improvements were made, the value of RULA 5 was obtained, which means that employees have a risk of injury when using a work desk. After making improvements with the Anthropometric approach, a new table size was obtained, namely 160 cm for the length of the table, 65 cm for the width of the table, and 75 for the height of the table. After making repairs to the work desk, the RULA test was carried out. Based on the test, the RULA value is 2, so it can be categorized as safe and low risk of injury when it used.
OPTIMALISASI PRODUKSI ARMREST PT ADD DENGAN LEAN SIX SIGMA
Penelitian ini bertujuan meningkatkan produktivitas produksi armrest RR di PT ADD menggunakan metode lean six sigma dan Value Stream Mapping (VSM). Studi dilakukan di factory I PT ADD Karawang, fokus pada line 6 production covering 56XX yang tidak mencapai target produktivitas 6,4 pcs/MH selama September 2023-Februari 2024. Penelitian mengidentifikasi dua jenis pemborosan utama: produk cacat (kerugian Rp 24.353.889/bulan) dan proses berlebihan (kerugian Rp 17.445.120/bulan). Implementasi lean six sigma melibatkan tiga strategi: pengelompokan aktivitas proses, pengurangan waktu produksi melalui speed up dengan katagami skin, dan relokasi kerja man power. Hasilnya, efisiensi produksi meningkat dari 81,25% menjadi 97,87%, menunjukkan peningkatan 16,62%. Pendekatan ini terbukti efektif dalam mengoptimalkan alur kerja, meningkatkan produktivitas, dan membuka peluang perbaikan berkelanjutan. Temuan ini menegaskan potensi signifikan lean six sigma dalam meningkatkan daya saing PT ADD di industri pengolahan armrest RR melalui streamlining proses dan eliminasi waste.
Analisa Waktu Kerja Pendataan Buku Tamu Pada Gedung PT. HSH Dengan Menerapkan Desain UML
PT HSH yang terus bertahan hingga saat ini salah satunya dengan memberikan pelayanan yang optimal. Pada pelayanan di resepsionis gedung HSH membutuhkan alat bantu pada proses pemdataan identitas tamu yang saat ini masih kurang efektif disebabkan pencatatan masih dilakukan dengan manual yaitu resepsionis menginput ke dalam buku tamu fisik. Sehingga proses ini dikatakan tidak efektif. Hal ini memicu solusi untuk membuat aplikasi dengan menerapkan desain uml juga melakukan perhitungan waktu kerja untuk menganalisa apakah terdapat perbandingan waktu kerja sebelum dan sesudah adanya rancang bangun aplikasi, rata rata waktu pendataan identitas sebelum adanya rancang bangun yaitu 165.15 sekom dan setelah adanya rancang bangun yaitu 69.54 sekon.
USULAN MENGURANGI WAKTU SET UP WIND UP MESIN ABC-1 DENGAN METODE SMED
Bias cutting process is a process of cutting treatment into ply, breaker, chaffer, and flipper. However, in the production of breaker production targets are often not achieved. Field observations made on the ABC-1 machine that produces breakers show that the setup time in the win up process is quite long and can be reduced so that the production process time increases. To reduce setup time, wind up modifications, design and construction of empty storage liners were carried out and the application of the SMED method in the setup process. The total setup time for changing the empty liner and filling the previous empty storage liner is 378.62 seconds. After modifying the wind up, designing an empty storage liner and applying the SMED method to the setup process, the setup time decreased to 262 seconds or 30.8% decrease from the previous time.
Hak Cipta (c) 2022 Jurnal Sains Ilmu Teknologi Industri
ANALISIS PROSES PEMBUATAN ALAT UNTUK PENGUKURAN DIMENSI TIRE MOTORCYCLE STUDI KASUS DEPARTEMEN LABORATURIUM QA TIRE PERFORMANCE TESTING PLANT A PT. PPP
Based on the results of interviews conducted on workers measuring motorcycle tire dimensions, workers experienced back and neck pain caused by a bent position when taking measurements. In this study, an analysis of the body posture of workers measuring motorcycle tire dimensions was carried out using the REBA (Rapid Entire Body Assessment) method, table design based on anthropometry and standard time analysis using the Stopwatch Time Study method. The results of the analysis resulted in a change in the REBA score which was originally 10 (High Risk), after designing the REBA score to 3 (Low Risk). The results of the table design based on the dimensions of the worker's body, the length of the table is 60 cm, the width of the table is 48.5 cm, and the height of the table is 80 cm. The standard time produced by workers before the design is 9 minutes and after the design is 8 minutes.
PERANCANGAN RACK LIFTER SEBAGAI UPAYA INTERVENSI BEBAN KERJA FISIK DI FA PT RY (STUDI KASUS RAK KUNING UNTUK JENIS BAN LIGHT TRUCK)
Aktivitas penanganan material merupakan suatu aktivitas penting bagi perusahaan dalam mendukung kegiatan suatu proses. Aktivitas penanganan material yang tidak tepat dapat menimbulkan kerugian seperti risiko cidera, kecelakaan dan Penyakit Akibat Kerja (PAK). Penelitian ini dilakukan pada proses pengerakan di FA PT RY. Proses pengerakan merupakan suatu aktivitas penyusunan ban kedalam rak di FA. Ban yang paling banyak disusun adalah jenis ban Light Truck 7,50-16 14PR SU88N dengan berat 22,26 kg. Proses pengerakan dilakukan dengan cara didorong dan diangkat. Proses tersebut dilakukan secara berulang selama 8 jam/hari, sehingga berpotensi menimbulkan risiko cidera dan Penyakit Akibat Kerja (PAK) bagi para pekerja. Penelitian ini dilakukan untuk menganalisa proses pengerakan dari segi beban kerja menggunakan metode NIOSH Lifting Equation. Berdasarkan analisa, proses pengerakan menghasilkan nilai Lifting Index > 3 yang berarti proses tersebut dapat menyebabkan peningkatan risiko cidera pada banyak pekerja. Sehingga diperlukan pengecekan dan perbaikan sesegera mungkin pada proses tersebut. Untuk menurunkan nilai Lifting Index penulis merancang sebuah usulan alat bantu angkat bernama Rack Lifter. Usulan alat bantu tersebut, dapat menurunkan nilai Lifting Index menjadi < 1 yang berarti proses pengerakan apabila dilakukan dengan menggunakan alat bantu maka proses pengerakan menjadi aman dan tidak menyebabkan risiko cidera dan Penyakit Akibat Kerja (PAK) bagi para pekerja.
Hak Cipta (c) 2021 Jurnal Sains Ilmu Teknologi Industri
PERANCANGAN ALAT BANTU MEJA DENGAN PENDEKATAN ANTHROPOMETRI DALAM MENDUKUNG SISTEM KERJA ONE PIECE FLOW (STUDI KASUS PROSES PENGEMASAN TUBE RADIAL UKURAN LIGHT TRUCK)
Waste merupakan segala aktivitas yang tidak memberikan nilai tambah selama dalam proses kerja. Berdasarkan observasi yang telah dilakukan pada proses pengemasan tube, gerakan menumpuk barang WIP (Work In Process) merupakan waste yang paling banyak dilakukan oleh operator dan menjadi waste prioritas untuk diselesaikan karena memiliki frekuensi sebanyak 520 kali. Hal itu dikarenakan proses kerja masih menerapkan sistem kerja full batch flow. Dalam penelitian ini dilakukan analisa dengan memberikan usulan perbaikan sistem aliran proses kerja serta usulan perancangan meja kerja sebagai pendukung sistem yang bertujuan untuk mengurangi waste gerakan menumpuk barang WIP sehingga proses kerja menjadi lebih mengalir (one piece flow). Hasil penelitian menunjukkan bahwa dengan dilakukannya usulan sistem kerja one piece flow dan penggunaan usulan perancangan meja kerja dengan pendekatan anthropometri sebagai pendukung sistem kerja pada proses pengemasan tube dapat mengurangi waste gerakan menumpuk barang WIP terutama pada proses mengikat tube, proses memasukkan ikatan tube ke dalam karung, dan proses menjahit karung tube.
PERANCANGAN SISTEM KANBAN AREA COMPOUNDING DEPARTEMENT PREPARATION PT XYZ
The preparation department is a department that produces materials that will be used for the production process such as ADR, UCR, and canvas friction. The preparation area supplies materials to four production departments, namely the long size, short size, raw edge, variable speed department. Therefore, to meet the demand for production materials and so that production runs smoothly, the Kanban system is used. Kanban system is an information system that is used to control the production process of the required product, the amount needed, and when it is needed. The Kanban system used in the preparation area is a manual Kanban system. Therefore, this research will design a web-based Kanban system. To simplify the Kanban system process in the preparation area, the researchers created a web-based Kanban system. This web will later function to store and access data to make it easier to supervise what materials have been and will be produced in the preparation area. The information system that will be used in making the web is PHP and MySQL as data storage. In making this web-based Kanban system, researchers used Microsoft visual studio code as the design design and software to create the web page. With a web-based Kanban system, it is expected to reduce cycle time when the operator wants to check ROP and reduce motion waste when the operator returns the Kanban card to the board.
Hak Cipta (c) 2024 Jurnal Sains Ilmu Teknologi Industri
ANALISA PENYEBAB TERJADINYA DEFECT LENGKET PADA PROSES COATING POWDER DI PT XYZ DENGAN PENDEKATAN SIX SIGMA
One type of cable produced at PT XYZ is the low-voltage NYY cable. One of the most important processes in the production process is the sheating process. The problem that is often encountered in the sheating process is the occurrence of visual defects with a percentage of 63.3% of the total defects that occur throughout 2021. Visual defects are divided into several types, including: sticky, wavy outer sheat, dull outer sheat, porous outer sheat, color does not match, and so on. The type of visual defect that often occurs is sticky defect with a percentage of 31.75%. Throughout 2021 the sticky defect was caused by the stickiness of the insulation layer with the outer sheat layer due to the non-coated insulation layer with non-stick material. By analyzing using a six sigma approach, the results obtained in the form of proposed improvements by designing a powder applicator machine. The design is done by making a powder applicator machine with a tub system and there is a mixer with an electric motor drive on the inside of the tub and using a heater on the outside of the tub. The results obtained after the installation of the tool in June 2022 were that no sticky defects were found.
Hak Cipta (c) 2023 Jurnal Sains Ilmu Teknologi Industri
PERANCANGAN TATA LETAK MENGGUNAKAN METODE CLASS-BASED STORAGE DI GUDANG MATERIAL
Warehouse is a place to store raw materials or finished goods. So that the warehouse requires sufficient and adequate space for the storage process. A good layout is needed so that all activities in the material warehouse can run optimally. PT SNTY is a company engaged in the automotive sector. Researchers assessed that PT SNTY's material warehouse was not optimal, so it was necessary to redesign it to increase the effectiveness and efficiency of PT. SNTY. So that makes researchers analyze and redesign the layout of the warehouse PT. SNTY and classifying materials based on the type and frequency of material usage.
PENGARUH PENERAPAN SISTEM MONITORING REAL-TIME BERBASIS CITECT SCADA PADA OXYGEN PLANT TERHADAP WAKTU KERJA
The gold extraction process in the leaching tank is strongly influenced by the Oxygen Plant, so the value of the Oxygen Plant parameter needs to be monitored to determine the quality of the oxygen taken into the leaching tank. Previously, the Oxygen Plant monitoring process was carried out by manually recording the Oxygen Plant parameter data in the Oxygen Plant area. However, the operator's Post to the location of the Oxygen Plant is quite far so that causes the operator to take a long time (about 18 minutes) to carry out these activities. This research was conducted to analyze and wait for the operator's working time after the implementation of a real-time monitoring system on the Oxygen Plant. This study uses the method of measuring working time, which is carried out on operators who record Oxygen Plant data both before and before the application of the system. Based on the results of the research data obtained, the operator's working time, which previously averaged 6,11 minutes, decreased after the implementation of the real-time monitoring system to an average of 1,86 minutes. The implementation of the real-time monitoring system provides a storage time of 4,25 minutes or 69,5% for the operator. The results of the T-test conducted show that the implementation of a real-time monitoring system at the Oxygen Plant affects the operator's working time in recording data.
RANCANG BANGUN MEJA DAN RAK PENYIMPANAN JOINT SLEEVE DILENGKAPI ALAT UKUR BERBASIS SENSOR ULTRASONIK
Non-Value Added activities and non-ergonomic working conditions can result in reduced productivity. in this case the Dept. Raw Edge PT XYZ has problems in the curing process where at the time of installation of the joint sleeve there are non-value added activities such as searching and checking. The conditions of storage racks and work tables that are not ergonomic make it difficult for operators to store the joint sleeve according to their identity so that when they want to take the joint sleeve, a search and inspection process occurs with a time of 231 seconds. This study aims to create a design to assist operators in retrieving, storing and reaching the joint sleeve by making more ergonomic tables and shelves, improving shelf identity and making ultrasonic sensor-based measuring instruments. There are 3 non-value added activities, namely reaching, searching and checking. Obtained an ergonomic table size with a length of 80cm, width 110cm and height 90cm as well as the division of shelf size classifications, namely <8cm, 8-12cm, and >29cm
ANALISA CYCLE TIME PADA PROSES CURING DI BAGIAN LINE 6 BIG DAN DENGAN METODE TIME STUDY PADA PT XYZ
The existence of NVA activity can have an impact on high cycle time. In this case, PT XYZ has a problem where the cycle time exceeds the takt time, namely the curing process on line 6 of the Raw Edge Department. After observing the curing process, the highest cycle time was obtained, namely the joint leeve taking with a time of 231 seconds. In this process, there are activities that do not add value, such as searching and inspecting. This study aims to assist operators in retrieving, storing and reaching joint sleeves by making improvements such as classified shelves and ultrasonic measurement system. Before and after the repair, a time study was conducted to see the level of improvement based on production capacity and as a new standard for the curing process. Based on the results of research from improvements to the process resulted in the elimination of 2 elements of process work and inspection. There is an increase in production capacity of 2.58 slabs with a reduction in standard time of 175 seconds. This affects the cycle time of the curing process which was originally 845 seconds to 670 seconds.
ANALISIS WASTE PADA PROSES PEMANTAUAN POSISI LOKASI OPERATOR TERHADAP MESIN DI PT.XYZ
PT. XYZ is one of the cable manufacturing companies in Indonesia, PT. XYZ has a production process in making a cable. The production process consists of drawing, stranding, insulating, cabling, inner sheating, outer sheating and packing, these processes require operators to carry out all these processes. PT.XYZ has 3 groups in the production process where each group has 78 to 79 operators, each group is led by a supervisor. The supervisor before production starts provides the production schedule and operator location on the machine through the whatsapp group application to the operators, after the supervisor shares the operator's location on the machine the supervisor is in charge of manually checking the operator's location on the machine by going down to the production area. Supervisors need a lot of time when checking the location of the operator on the machine because the checking process is still done manually. In the process of checking the operator's location on the machine, we analyze the process using a lean manufacturing and 5 why’s approach to analyze the waste that occurs in the process. The author conducts an analysis using value stream mapping and process activity mappin to determine the actual time that occurs in each process of checking the operator's location on the machine and the time after repair. The author makes a scanner application and operator location monitoring on an android-based machine to eliminate waste that occurs in the process of checking the operator's location on the machine and the process becomes more efficient.
PERANCANGAN SISTEM MONITORING DAN PENGEMBANGAN PROGRAM SISTEM PENJADWALAN DEPARTEMEN MATERIAL BAGIAN TREAD, SIDEWALL DAN STEEL BELT BERBASIS VBA MACRO EXCEL
Pada Departemen Material yang paling sering mengalami shortage adalah tread, sidewall dan steel belt. Dari hasil analisis pareto chart, 80% masalah pada bagian tread, sidewall dan steel belt adalah permasalahan mengenai penjadwalan. Dengan analisis fishbone diagram diketahui akar permasalahan pada sistem penjadwalan, yaitu perangkat keras hanya tersedia 2-3 komputer, proses pembuatan jadwal hanya 2 kali dalam 1 shift, stok awal masih berdasar estimasi dan running program schedule system memerlukan 3 tahapan. Oleh karena itu dilakukan perancnagan sistem monitoring jadwal dan modifikasi program sistem penjadwalan di bagian tread, sidewall dan steel belt yang diharapkan dapat mempermudah dan mempercepat kegiatan running jadwal pada sistem untuk mencapai tujuan secara maksimal. Dalam mencapai target yang diinginkan maka dilakukan perancangan sistem aplikasi yang lebih sederhana, mudah digunakan, lebih aktual dan sistem yang lebih dekat dengan pengguna. Dengan pengembangan sistem penjadwalan bagian tread, sidewall dan steel belt maka dapat menampilkan data di monitor & menghilangkan proses print jadwal, dapat update jadwal setiap saat dengan fitur realtime, dapat memproses jadwal pada sistem dengan satu tahapan dan mempercepat proses pembuatan jadwal menjadi 40,06 detik dari 276,62 detik.
PERENCANAAN JADWAL PENGADAAN RAW MATERIAL ADITIVE DENGAN METODE MATERIAL REQUIREMENT PLANNING (STUDI KASUS PT SGB)
PT.SGB is a new factory that will operate. So that maximum efforts are needed in optimizing when the factory is in production and in the future. These efforts include increasing the effectiveness of the procurement of materials to be used. During the cement production process, several additive materials were purchased from third party vendors, including gypsum, fly ash and pozzolan (PT.SGB, 2021 With the MRP, the accuracy of the amount and timing of materials will ensure that the company's activities are effective and efficient. October amounted to 15,344 tons, while May amounted to 7,672 tons, and in November and December amounted to 18,412. while the gypsum material in December 20021 to March 2022, and also May to September 2022 amounted to 5,834 tons, while April was 2,912 tons, and in October and November 2022 amounted to 6,989 tons. For fly ash in December 20021 to March 2022, and also May to September 2022 amounted to 3,662 tons, while April amounted to 1,831 tons, and in October and November 2022 amounted to 4,394 tons. And for pozzolan in December 20021 to March 2022, and also May to September 2022 amounted to 2,929 tons, while April amounted to 1,465 tons, and in October and November 2022 amounted to 3,515 tons.
PERANCANGAN TATA LETAK AREA RECEIVING GUDANG BAN B DI PT. AE DENGAN MENGGUNAKAN METODE SYSTEMATIC LAYOUT PLANNING DAN SOFTWARE BLOCPLAN
This study focuses on designing production facility layouts using the Systematic layout planning (SLP) method and Blocplan software. The main problem encountered is an inefficient layout, leading to high travel time and low productivity. The aim of this research is to design a proposed layout that is more efficient in terms of Material Handling and workflow. Research methods include analysis of material flow, Relationships between activities, and the development and evaluation of various layout scenarios using SLP and Blocplan. The research findings indicate that the proposed layout can reduce travel time by 27% and reduce Material Handling cost by 28%. The conclusion of this study is that the application of the SLP method and the use of Blocplan software can result in a more efficient facility layout, with positive implications for increased productivity and overall efficiency.
ANALISIS KEBUTUHAN TENAGA KERJA DENGAN METODE WORKLOAD INDICATOR STAFFING NEED DAN SIMULASI TATA LETAK MENGGUNAKAN SOFTWARE PROMODEL PADA PERANCANGAN TATA LETAK FASILITAS AREA RECEIVING GUDANG BAN B DI PT. AE
Analisis kebutuhan tenaga kerja dilakukan pada sebuah perancangan tata letak dengan tujuan untuk merumuskan kebutuhan ideal tenaga kerja pada setiap stasiun kerja yang digunakan untuk rancangan usulan perbaikan tata letak yang baru. Analisis dilakukan menggunakan metode Workload Indicator Staffing Need dengan menggunakan cycle time sebagai parameter utamanya. Hasil perhitungan yang didapat ialah perbaikan yang diusulkan dapat mereduksi jumlah karyawan yang semula berjumlah 12 orang menjadi 11 orang dengan penghematan yang bisa dicapai oleh perusahaan sebesar Rp 4.760.289 per bulan atau sebesar Rp. 57.123.468 per tahun. Selain itu, pengujian hasil rancangan tata letak juga dilakukan guna memvalidasi tingkat keberhasilan perbaikan yang dicapai dengan cara melakukan simulasi model tata letak menggunakan software ProModel. Simulasi yang dilakukan menunjukkan adanya perbaikan yang dilihat dari peningkatan jumlah kapasitas keluaran produk yang semula berjumlah 2.976 pcs/shift menjadi 3.435 pcs/shift.
PERANCANGAN UNIFIED MODELING LANGUAGE WEBSITE E-SURVEILLANCE CUT SECTION
This research aims to design an e-Surveillance Cut Section website using the unified modeling language (UML) approach in the Research & Development (R&D) department of PT RD. With technological advancements, improving product quality has become crucial for industrial competitiveness. One effort to enhance quality is through control involving continuous verification, maintenance, and inspection. The main issue is the abnormality of surveillance cut section data that has not been studied, leading to inconsistent patterns and varying trends, which affect tire efficiency and performance. Therefore, this study proposes designing a website application based on Statistical Process Control (SPC) to detect data abnormalities early and provide notifications. The implementation of SPC uses control charts and cause-and-effect diagrams to analyze with the eight Nelson rules and find the root causes of problems. The research results show the successful design and development of an e-surveillance application using UML modeling to optimize the quality of PT RD's tire products with early identification and timely alerts. A user satisfaction survey was conducted, achieving a feasibility rate of 92%.
ANALISIS MESIN CONE CRUSHER (CR02) DENGAN METODE OVERALL EQUIPMENT EFFECTIVENESS (OEE)
The Cone Crusher Machine (CR02) has an important role in the company's success to support the production process. PT Natra Mining is an industrial company that produces Ore (rock) into precious metals. In the production process at PT Natra Mining, the use of various production machines is very important to support the sustainability of the production process. These machines also play a role in supporting the production process. However, often the machine is damaged which can lead to high downtime during production The method to overcome this problem involves a Total Productive Maintenance (TPM) analysis using the Overall Equipment Effectiveness (OEE) method as well as a 5W1H analysis to provide repair recommendations. The results of the analysis show that the average OEE value of the Cone Crusher machine (CR02) is 54%, with 54% availability, 100% performance, and 100% quality. The proposed improvements are, making SOPs in the work area, carrying out preventive maintenance, namely by inspecting machine parts that can be carried out by the operator and assisted by experts such as the mechanical team, ensuring that the material before production is dry and cleaning the material before entering the Cone Crusher (CR02).
OPTIMALISASI PERSEDIAAN PERSONAL PROTECTIVE EQUIPMENT DI PT. IMK
Kecelakaan kerja di industri pertambangan adalah masalah global yang signifikan, dengan tingkat kecelakaan tinggi dan sering fatal, serta dampak negatif pada kesehatan mental pekerja. Berbagai solusi telah diterapkan, termasuk teknologi otomatisasi. Statistik ILO menunjukkan bahwa teknologi dan sistem manajemen keselamatan efektif dalam mengurangi kecelakaan fatal di beberapa negara, meskipun tantangan tetap ada di negara berkembang. Studi kasus PT. IMK menyoroti APD dan manajemen persediaan yang efisien. Penelitian ini menerapkan metode ABC Analysis menunjukkan bahwa 10 dari 47 item APD termasuk dalam klasifikasi A, dengan penggunaan anggaran 56,69%, menunjukkan perlunya pengendalian ketat, Metode Forecasting menggunakan Metode exponential smoothing (α=0,1) memprediksi permintaan APD dengan akurasi tinggi, seperti item code PPES100025 diramalkan sebanyak 756 doz untuk Juli 2024.