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Nanang Fatchurrohman
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INDONESIA
Jurnal Teknologi
Published by Universitas Putra Indonesia YPTK Padang
ISSN : 23014474     EISSN : 25411535     DOI : https://doi.org/10.35134
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering
Jurnal Teknologi The scope areas covered by the journal are Chemical & Bioprocess Engineering, Civil & Architecture Engineering, Computer Engineering, Electrical & Electronics Engineering, Industrial Engineering, Marine Engineering, Material & Metallurgical Engineering, and Mechanical Engineering. Additionally the aim of the journal focuses on publishing scientific articles from research results and analytical studies in the fields: - Economics - Computers - Technologies, and related fields as well as interdisciplinary between these fields.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 74 Documents
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Perawatan Mesin Crusher Menggunakan Metode RCM dan MVSM di PT. Galatta Lestarindo Sijunjung Meldia Fitri; Mohammad Farid; Hermanto
Jurnal Teknologi Vol. 13 No. 1 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i1.92

Abstract

PT. Gallata Lestarindo, which is located across Sumatra, Sei Lansek, Kec. Kamang Baru, West Sumatra which is committed to providing quality and useful products, namely the manufacture of organic fertilizer from dolmite stone or limestone, PT. Gallata Lestarindo Recognized as a growing, superior and trusted World Class Company as a fertilizer supplier, with the main focus on customer satisfaction. Based on preliminary observations made at PT. Galatta Leastarindo Sijunjung. While carrying out research at PT. Galatta Leastarindo Sijunjung, the crusher machine was often damaged which resulted in delays in the production process. Based on the problems above, this research was made to solve the problem of crusher machine maintenance using the Reliability Centered Maintenance (RCM) method and Maintenance Value Stream Map (MVSM) with Failure Modes and Effect Analysis (FMEA) calculations in an effort to increase production targets for smoothness in processing minerals, especially in mines dolomite rock. the results of maintenance intervals in 1 (one) month the company must provide time for maintenance on the machine with time on unit 1 for 82,24 hours, unit 2 for 29,72 hours and unit 3 for 2,82 hours.  
Beban Kerja Operator Menggunakan Metode CVL dan NASA-TLX PT. Batanghari Barisan Windi junialdo
Jurnal Teknologi Vol. 13 No. 1 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i1.93

Abstract

Batang Haribarisan is a company engaged in the processing of raw rubber into semi-finished goods (work in process). The type of product produced is crumb rubber. PT. Batanghari Barisan still has a lot of work that is done manually which can cause workload both physically and mentally, therefore it is necessary to measure the physical and mental workload for workers to find out whether the work carried out is included in the workload category that is safe to do in long period of time. The methods that can be used are the Cardio Vascular Load (CVL) and National Aeronautics and Space Administration Task Load Index (NASA-TLX) methods. It is known that the measurement of physical workload using the CVL method, there is workload in the category that needs to be repaired, namely breaker and hammermill operators, with a percentage of 32.05% and 32.65%. Both types of work require high physical labor because most of the work is done standing, monotonous and repetitive. and secondly, the operator's age is considered old, namely 56 years and 47 years, so that it affects the perceived workload. Based on the results of mental workload calculations using the NASA-TLX method that has been carried out. Whereas the mental workload with indicators is Mental Needs (MD) of 170, Physical Needs (PD) of 540, Time Requirements (TD) of 280, Work Performance (OP) of 390, Level of Effort (EF) of 510, and Frustration Level (FR) of 180.  
Pengembangan Aplikasi Manajemen Peserta Penerima Program Keluarga Harapan Pada Dinas Sosial Kota Banjarbaru Ihsanul Fikri
Jurnal Teknologi Vol. 13 No. 1 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i1.94

Abstract

The Banjarbaru City Social Service Office handles and processes data on the Family Hope Program (PKH) located in the Banjarbaru City area. need an aplication that manages data that determines which participants deserve assistance and the need for a system that can provide data that can reach PKH assistance. From the existing problems, it was analyzed and designed an management application for PKH recipients at the Banjarbaru City Social Service, which was built using the waterfall method, with stages including system requirements analysis and ongoing system analysis, design or design using the UML method, interface design, writing program code, testing, and implementation stages. This system produces an management application for PKH recipients at the Banjarbaru City Social Service. Forming neatly stored documentation and performance power in information systems. Documented data is stored neatly in a form database so that it is easy to find when needed.
Investigation on the Performance in Tire Repair Operation – A Case Study for Semi Automation in MSMEs Maidawati; Purnama, Adji; Mahendrawan, Sidik
Jurnal Teknologi Vol. 14 No. 1 (2024): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v14i1.97

Abstract

This investigation involved Micro, Small, and Medium Enterprises (MSMEs) specializing in tire repair services. The conventional methods employed by tire patchers using manual tools with heating systems fueled by gasoline, kerosene, or spirit have raised concerns regarding safety, as they are prone to fire hazards. In response to these challenges, some tire repairs have adopted modern tire patching devices equipped with electric heating systems, which not only demand lower electric power but also offer enhanced safety features. The utilization of electric heating systems in modern tire patching devices not only addresses safety concerns but also contributes to the overall improvement of patch quality. The electric heating systems are designed to provide a controlled and measurable amount of heat, ensuring a more robust adhesion of tire patches and, consequently, a higher quality repair. The objective of this report is to advocate for the optimization of tire repair performance through the implementation of tire patching process semi automation. The result shows that by applying semi automation, MSMEs in the tire repair can enhance the efficiency of the patching process, and significantly reduce safety risks associated with traditional heating methods. This optimization contributes to a safer working environment but also leads to a more sustainable and higher in quality of tire repair service.  
Bead Characterization for Wire Based Laser Directed Energy Deposition Fabrication Process Sidun, Muhammad Irfan Syahmi; Ishak, Ismayuzri
Jurnal Teknologi Vol. 13 No. 2 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i2.98

Abstract

A three-dimensional, solid object of almost any shape or design can be created using metal additive manufacturing, often known as metal 3D printing. One of the most popular materials utilized in additive manufacturing is metal. The far more complicated procedure of directed energy deposition (DED) is frequently employed to upgrade or repair existing components. DED fabrication process will be able to construct a 3D metal object with consideration of the weld bead characteristics. Without knowing the weld bead characteristics, the mechanical integrity will not hold as the bead size is not suitable for the product. In the current study, we will study the effect of variation of parameters of the DED machine to be able to print in a continuous deposition and we will also investigate the weld bead characteristics printed by the variation of parameters with the use of DED machine. The variation of parameters of the machine are the laser power with the unit of Watt and the feedrate of the machine with the unit of mm per minute. Nine preliminary samples are printed to check whether the bead can be printed in a continuous line or not. The value of variation of parameters that bring about a continuous deposition will be jotted and continued to be taken to bead characterization for study. Six samples were printed, and the bead width and height are calculated based on the variation of parameters. Based on the result, we found that laser power will increase the bead width, but the bead height needs optimal laser power which is at 473 Watt and optimal feedrate which is on 60 mm per min to reach optimal bead height which is at 2.1162 mm. The effect of the machine feedrate on the other hand is inconsistent, thus more samples need to be gathered.
Performance Analysis of Object Placement Systems Based on Siemens S7-1200: Evaluation of Effectiveness and Accuracy: Performance Analysis of Object Placement Systems Based on Siemens S7-1200: Evaluation of Effectiveness and Accuracy Siswoyo, Agus; Artanto, Dian
Jurnal Teknologi Vol. 13 No. 2 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i2.99

Abstract

The evolution of industrial automation systems has led to innovative solutions for efficient and precise object manipulation. This study introduces a groundbreaking "Object Placement System Based on Siemens S7-1200," designed to enhance object positioning tasks in manufacturing environments. The system's core control unit is the Siemens S7-1200 Programmable Logic Controller (PLC), seamlessly integrated with a network of sensors and actuators for coordinated operations. Operators can easily define target positions and parameters for object placement through a user-friendly human-machine interface. The PLC facilitates real-time data exchange with sensors, enabling accurate object detection and adjustments during placement. The system's implementation involves meticulous PLC programming, sensor integration, and interface design. Experimental results validate its capability to achieve precise and repeatable object placements. The Siemens S7-1200 is a versatile PLC supporting controlled positioning of electrically driven axes and technology objects, tailored for small automation systems requiring simple or advanced Human-Machine Interface (HMI and communication capabilities. The object placement system leverages the capabilities of the S7-1200 PLC for integrated sensor and actuator coordination, ensuring accuracy and repeatability. The study concludes that the innovative system utilizing the Siemens S7-1200 PLC underscores its potential for optimizing production processes and enhancing operational efficiency in industrial automation systems. The demonstrated ability to achieve precise and repeatable object placements highlights the viability of the Siemens S7-1200 platform for advancing object manipulation in industrial settings. The S7-1200 system manual provides specific information about the operation and programming of the PLC. Additionally, the system is supported by the TIA Portal programming software, which offers flexibility and ease of use.  
Investigasi Pengaruh Flow terhadap Pembacaan Suhu Air Sensor DS18B20 pada Shower Therapy Arianto, Eko
Jurnal Teknologi Vol. 13 No. 2 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i2.100

Abstract

The shifting lifestyle trends towards prolonged periods of sitting have led to an increase in health issues such as stress, depression, and even hypertension. In the pursuit of maintaining health, therapy, particularly shower therapy, has become a popular choice for its perceived ability to provide warmth, relaxation, and alleviate fatigue. However, questions arise regarding whether the water temperature in shower therapy changes as water flows at specific rates and how this might influence the therapy's effectiveness. This research aims to observe whether the water temperature in shower therapy is affected by the flow rate using the DS18B20 temperature sensor. The method involves measuring the water temperature at rest and while it flows at various flow rates. Water flow is controlled using a dimmer on the booster pump, while temperature measurements are taken using the DS18B20 temperature sensor and water flow meter sensor. The test results indicate that water at temperatures of 38-43°C flowing through pipes experiences an average temperature decrease of approximately 1.53°C. However, the temperature decrease does not exhibit a linear relationship with the flow rate. These findings suggest the possibility of other factors, such as the surface area of the conduit (pipes), influencing the temperature reduction in shower therapy. Hence, further research to examine the impact of the surface area of the conduit on the temperature reduction in shower therapy is warranted to obtain a more comprehensive understanding.
From Corn to Cassava: Unveiling PLA Origins for Sustainable 3D Printing Fatchurrohman, Nanang; Muhida, Rifki; Maidawati
Jurnal Teknologi Vol. 13 No. 2 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i2.101

Abstract

The focus of this paper is to review the polylactic acid (PLA) sourcing for 3D printing and investigating with a specific emphasis on corn starch, sugarcane, and cassava starch. PLA is recognized for its biodegradable nature and versatility as a thermoplastic, has witnessed a notable evolution in the global context of material selection for 3D printing. While regions such as the United States and Canada have traditionally derived PLA from corn starch, there is a growing trend in Asia where cassava starch have emerged as prominent alternatives. This study seeks to discover the complexities of the of PLA origins, looking into the sustainability considerations that contribute to the selection of source materials. By shedding light on the diverse trajectories of PLA sourcing, this study provides valuable insights into the ever-changing dynamics of material preferences for 3D printing on a worldwide scale. Moreover, the understandings generated through this study are composed to play a pivotal role in shaping the trajectory of future practices in additive manufacturing. As the industry continues to evolve and grapple with the imperative of environmental responsibility, a nuanced understanding of the sustainability dimensions of PLA sourcing becomes a compass guiding researchers, practitioners, and manufacturers toward ecologically sound choices. Ultimately, the study serves as a valuable resource, empowering participants to navigate the complex landscape of PLA-based 3D printing with a thorough judgement on sustainability, thereby fostering a more environmentally responsible future for additive manufacturing.
Optimalisasi Line Balancing Menggunakan Metode Ranked Positional Weight, Moodie Young, dan J-Wagon Yetrina, Mutiara; Fitri, Meldia; Susriyati; Laurenza, Soviana
Jurnal Teknologi Vol. 13 No. 2 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i2.103

Abstract

CV. Cahaya  Furniture is an industry engaged in  Furniture, which is located in Kampung Jua, Lubuk Begalung Nan XX District. In the teak cupboard production process, there is an imbalance in the teak cupboard production. This study aims to deterine the performance of the production line balance using the Ranked Positional Weight, Moodie Young, and J-Wagon methods. The results show that the current track efficiency is 76.83%, Balance Delay is 32.17%, Smoothness Index is 36.13 with 5 work stations, whereas after calculating with the Line Balancing method, the result is that using the Ranked Positional Weight method the increased efficiency value increased to 96.04%, the balance delay decreased to 3.96%, the smoothness index was 5.32 with withdrawals being 4 work stations. In the Moodie Young method, the recovery efficiency value is the same as the initial condition, which is 76.83%, the balance delay is 23.17%, the smoothness index is 14.39 with 5 work stations. In the J-Wagon method, the track efficiency value decreased to 64.03%, the balance delay increased to 35.97%, the smoothness index was 19.65 with 6 work stations. The results of this study indicate that the most effective method used is the Ranked Positional Weight method because there is a reduction in work stations to 4, and increases transfer efficiency to 96,04%, decreases balance delay from 3.96%, and smoothness index decreases to 5.32.
Penjadwalan Pemeliharaan Mesin Produksi Menggunakan Reliability Centered Maintenance Sastriawan, Alun
Jurnal Teknologi Vol. 14 No. 1 (2024): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v14i1.113

Abstract

CV. ABC is a furniture business that produces home equipment which includes all items, namely chairs, tables, cupboards, beds, nightstands, wooden stairs, etc. The aim of this research was to determine maintenance scheduling for production machines, namely wood cutting machines and drilling machines, and provide suggestions for improving the maintenance scheduling of production machines, namely wood cutting machines and drilling machines, which are more effective. The advantage of the Reliability Centered Maintenance (RCM) method is that it prioritizes the main action of preventive maintenance, namely preventing and minimizing the consequences of failures that arise, so that it can increase the reliability and safety of the equipment used. Failure Modes and Effects Analysis (FMEA) is a technique for evaluating the level of reliability of a system to determine the effects of failure of the system. Based on the results of data processing and research discussion regarding production machine maintenance scheduling using RCM at CV. ABC, a conclusion can be drawn, namely, the Cutting Machine has a breakdown frequency of 26 times with the Bearing component having the most breakdown frequency, namely 8 times, the highest Risk Priority Number (RPN) calculation is Solenoid component with a value of 105,  Mean Time to Failure (MTTF) calculation with a value of 111.5385 and Mean Time to Recovery (MTTR) with a value of 0.769231. The drilling machine has a breakdown frequency of 24 times with the Drill Bit component having the highest breakdown frequency, namely 6 times, the highest RPN calculation is the Drill Bit component with a value of 105, MTTF calculation with a value of 120.8333 and MTTR with a value of 0.8333. 

Page 6 of 8 | Total Record : 74

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