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Susilawati, Dera
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Rancang Bangun Kerangka Dudukan Panel dan Perhitungan Daya Motor Susilawati, Dera; Prasetyo, Henry; Nugroho, Joko Wahyu
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 1 (2024): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Industri kendaraan berkembang pesat, menjadikannya kebutuhan utama dalam kehidupan sehari-hari. PT. XYZ di Tangerang, Indonesia, mengkhususkan diri dalam produksi ban untuk truk dan bus di Plant A, yang melibatkan tahapan pembuatan dan pengecekan kualitas menggunakan Drum Test untuk menilai ketahanan ban dalam kondisi tertentu. Dengan 10 mesin Drum Test yang memiliki spesifikasi berbeda, terutama dalam hal kecepatan motor (RPM), Alat Master Tachometer digunakan untuk memastikan nilai RPM sesuai standar. Namun, alat ini memerlukan kalibrasi eksternal karena tidak tersedianya media kalibrasi internal. Penelitian ini bertujuan untuk mengatasi masalah tersebut dengan merancang dan membangun kerangka dudukan panel serta menghitung daya motor yang diperlukan, memungkinkan kalibrasi internal yang lebih efisien dan efektif. Kesimpulannya, alat kalibrasi dengan massa total 25,936 kg dan Factor of Safety sebesar 79,164, jauh melebihi nilai minimum, memastikan hasil pengukuran yang konsisten dan akurat meskipun terpengaruh getaran atau gangguan eksternal, berkat presisi dalam desain dan konstruksi.
RANCANG BANGUN ALAT PENGADUK CEMENT MARKING PADA SECTION EXTRUDER DI PLANT C MENGGUNAKAN PENDEKATAN ERGONOMI Susilawati, Dera; Prasetyo, Henry; Kurniawan, Iqbal Rizky
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 1 (2024): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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T XYZ adalah perusahaan manufaktur ban yang berfokus pada peningkatan kualitas produk. Di Plant C, yang memproduksi Automobile Tube dan Bladder, proses extruding sering mengalami kendala pada tahap marking line. Pengadukan dan penyaringan cement dan solvent dilakukan secara manual, menyebabkan postur kerja tidak ergonomis dan berpotensi menyebabkan rework pada green stick tube. Dengan metode RULA, diidentifikasi risiko tinggi pada postur operator). Posisi badan membungkuk, jika dilakukan secara berulang tentu akan mengakibatkan musculoskeletal disorder apabila tidak dilakukan penanganan ataupun pencegahan. Untuk solusi, dirancang alat pengaduk cement marking menggunakan Motor Pneumatic Rotary yaitu air grinder yang di kontrol dengan sistem kontrol elektro pneumatik sehingga alat pengaduk akan bekerja secara otomatis mengaduk selama 15 menit dan mati secara otomatis selama 8 jam ketika push button on di tekan, hal tersebut akan terus berulang sampai push button off atau emergency switch di tekan. Jumlah total energi yang di habiskan oleh alat ini dalam satu hari yakni 1,54 Kwh..
Modifikasi HMI Dan Program PLC Sebagai Monitoring Debit Aliran Cooling Sistem Mesin Cold Runner 2000CC (20pt) Susilawati, Dera; Yogi Tama Muhammad Ardiyansyah; Ari Kuswantori
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 2 (2025): Mei
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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This research discusses monitoring the flow rate used as a cooling medium for a cold runner type curing machine which is equipped with a flow sensor and integrated with an Omron PLC and HMI TS1100 to increase production results in the IMD-50 curing machine. This system is designed to monitor and control coolant flow accurately, so as to maintain product quality. Tests were carried out using the Wilcoxon test method to analyze NG data before and after implementing the modification to add the SM7000 IFM floe sensor, to ensure a significant increase in production efficiency and quality. The research results show that the use of the IFM SM7000 floe sensor on a 2000 cc cold runner curing machine and the integration of the Omron PLC and HMI TS1100 significantly improves process control and reduces torn and short mold NG products. In addition, payback period analysis shows that investments in this system can be returned in a relatively short time, making it an economical andeffective solution for the manufacturing industry. Thus, the implementation of this technology not only provides technical benefits but also significant financial benefits for companies.
Merancang Bangun Aplikasi e-JO Berbasis Website Departemen Instalasi PT. ANDS Cahyono, M. Ridwan Arif; Aurora, Diva Herna; Susilawati, Dera
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 2 (2025): Mei
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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The submission of job orders for repairs, new machine installations, modifications, and machine relocations is currently done manually using paper. This manual process causes delays in job order delivery, difficulties in monitoring the progress of job orders, and challenges in finding and archiving job order forms. To address these issues, this study designed a web-based e-JO system using the CodeIgniter framework and MySQL database. The system aims to make the process more efficient and structured. After implementing the e-JO system, data was collected to measure potential time savings. The results showed that before the change, the job order submission process took 17,287 seconds, whereas after the new system was implemented, it only took 1,137 seconds. Thus, it can be concluded that the e-JO system significantly reduced the job order submission time, making the process faster and more efficient.
Modifikasi sistem pressure pada Air Brake Roll Treatment Let off Bias cutting menggunakan Sensor Distance IFM O1D100 Susilawati, Dera; Rusydi, Muhammad Ibnu; Firdausi, Muhamad Kahlil; Widiantoro, Rahmat
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 2 (2025): Mei
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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At PT XYZ, the Bias cutting process plays a crucial role in tire production, particularly in the handling ofTreatment rolls involving the Air Brake Roll Treatment system. Currently, pressure adjustment on the Bias cutting machine at the Let Off section is performed manually by operators, often leading to inaccuracies in pressure reduction. These inaccuracies result in uneven compression of the Treatment rolls, leading to increased scrap rates and reduced production efficiency. This study aims to modify the pressure system by replacing the manual method with an automated system using the IFM O1D100 Distance Sensor. This modification involves automatically adjusting pressure based on the distance of the Treatment roll, thereby reducing the risk of unwanted compression and enhancing the consistency of the Bias cutting process. The study results show that using an electro-pneumatic system controlled by the Distance Sensor allows for more precise pressure adjustment, contributing to reduced scrap rates and improved production efficiency.
Rancang Bangun Sistem Kontrol Elektro Pneumatik Pada Alat Bantu Pemotong Green stick tube Arif Cahyono, M. Ridwan; Syifa Amalia Azzahra Putri Wardoyo; Henry Prasetyo; Susilawati, Dera
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 6 No. 2 (2025): Mei
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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The current process for cutting green stick tubes at the company is still done manually by operators using scissors because the extruder machine cannot cut sizes below 1,000 mm. As a result, sizes 6.00-9 and 6.50-10 must be cut manually before the splicing process. The green stick tubes coming out of the extruder often exceed the splicing machine’s cutting tolerance of 20 mm. According to the data, sizes 6.00-9 and 6.50-10 with a length of 1010 mm need to be cut to 840 mm and 910 mm, respectively. The average cutting time per shift is 164.6 seconds, influenced by the time operators take to find scissors and the lack of efficient cutting tools. The main issues in this cutting process are caused by three factors: Machine, Material, and Man. The extruder machine cannot cut green stick tubes smaller than 1,000 mm. The green stick tube material of sizes 6.00-9 and 6.50-10 needs to be cut because their length exceeds the requirement. Additionally, inconsistencies among operators when cutting occur due to the lack of proper tools or guides. To address these issues, a cutting aid tool using a heater and pneumatic system is designed. This tool is expected to facilitate the cutting process of green stick tubes. The design of this tool aims to overcome the extruder machine’s inability to cut smaller sizes, reduce unnecessary additional time, ease the cutting process for operators, decrease the variation in cutting time, and improve the workflow in the splicing section, so the green stick tubes can be processed directly without additional hindrances.
PERANCANGAN SISTEM INFORMASI STOCK COMPOUND BERBASIS WEBSITE DENGAN PENDEKATAN UNIFIED MODELLING LANGUAGE Susilawati, Dera; Zohari, Ahmad; Ali Darmawan, Ferdy; Wahyu Sudrajat, Danar
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 7 No. 1 (2025): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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PT RCI faces challenges in managing FIFO stock compound information in the mixing department, the system currently used is still manual with a coin board as a tool for recording and visualizing data. This condition makes it difficult to monitor stock in real time, increases the risk of compound taking errors, and takes a long time to update data every day. To overcome this problem, this study designs a website-based stock information system using UML (Unified Modeling Language) as a visual modeling language to make it easier for users to understand and interact with the system. UML design is carried out as an initial step before website development begins. This system is designed to make the process more efficient and structured. The UML used includes 4 types of diagrams, namely Use Case Diagram, Activity Diagram, Sequence Diagram, and Class Diagram. The design of a website- based stock information system was successfully built using UML, which involved 2 actors, namely: Operator and Staff.
Rancang Bangun Kontrol Otomatis Penyemprotan Chemical Menggunakan Motorized Valve Pada Discharge Conveyor Susilawati, Dera; Ibnu Rusydi, Muhammad; Prasetyo, Henry; Waqis Tianto, Akbar; Caesar Fistiansyah, Najwan
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 7 No. 1 (2025): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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The coal transportation system using conveyor belts at PT AFY generates airborne coal dust, particularly in the discharge conveyor area, which poses a risk of environmental pollution and endangers workers' health. To address this issue, an automatic chemical spraying control system was designed using motorized valves operated by signals from the discharge conveyor. The airborne dust generated during coal transport consists of PM2.5 and PM10 particulates. Based on measurements using an air quality detector in the discharge conveyor (DC) area, PM2.5 concentrations ranged from 78 to 243 μg/m³ and PM10 from 102 to 318 μg/m³, categorized as unhealthy to very unhealthy. The chemical spraying system uses motorized valves to control the opening and closing of chemical flow. This research aims to design and implement an automatic chemical spraying system to reduce coal dust in the discharge conveyor area. The system is designed with motorized valves controlled by discharge conveyor signals. The development process includes planning and designing the control system. Dust level measurements before the system was installed showed an average of 168.2 μg/m³ for PM2.5 and 332.3 μg/m³ for PM10 (very unhealthy category). After implementation, the dust levels decreased to 19.4 μg/m³ for PM2.5 and 53.5 μg/m³ for PM10 (moderate to good category), with a reduction efficiency of 88.46% for PM2.5and 83.90% for PM10.
Modifikasi Sistem Kontrol Motor Listrik Menggunakan Inverter dengan Distance Sensor Pada Alat Penggulung Side Gume. Susilawati, Dera; Dharmanto; Kahlil Firdausi, Muhammad; Aldisar Syarifudin, Ahmad
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 7 No. 1 (2025): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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The high level of scrap in the bias cutting process at PT. ADM, particularly caused by ineffective side gume rolling, has impacted production efficiency. This final project aims to overcome this issue by modifying the side gume roller system on the DBC-03 machine. The original pneumatic motor was replaced with a three-phase induction motor, controlled by a PLC system integrated with a distance sensor and inverter to automatically adjust motor speed based on the diameter of the rolled material. The modification process included designing, assembling, and implementing the control system, followed by field testing. The results show that the new system significantly improves the roller's pulling strength, increases the rolling capacity, and enhances ease of operation. The distance sensor accurately detects changes in material diameter, and the inverter ensures stable speed control. Overall, the modified system has proven effective in reducing scrap, supporting continuous production, and providing a reliable solution for the bias cutting process in the tire manufacturing industry.
Co-Authors Aldisar Syarifudin, Ahmad Ali Darmawan, Ferdy Ari Kuswantori Arif Cahyono, M. Ridwan Aurora, Diva Herna Caesar Fistiansyah, Najwan Cahyono, M. Ridwan Arif Dharmanto Firdausi, Muhamad Kahlil Henry Prasetyo Henry Prasetyo, Henry Ibnu Rusydi, Muhammad Kahlil Firdausi, Muhammad Kurniawan, Iqbal Rizky Nugroho, Joko Wahyu Rusydi, Muhammad Ibnu Syifa Amalia Azzahra Putri Wardoyo Wahyu Sudrajat, Danar Waqis Tianto, Akbar Widiantoro, Rahmat Yogi Tama Muhammad Ardiyansyah Zohari, Ahmad