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Jurnal Kendali Teknik dan Sains
Published by International Forum of Researchers and Lecturers
ISSN : 29864429     EISSN : 29863228     DOI : 10.59581
Core Subject :
Jurnal Kendali Teknik dan Sains dengan e-ISSN : 2986-3228, p-ISSN : 2986-4429 adalah jurnal yang ditujukan untuk publikasi artikel ilmiah yang diterbitkan oleh International Forum of Researchers and Lecturers. Redaksi menerima artikel berbasis teori dan penelitian. Cakupan keilmuan Jurnal ini meliputi pengetahuan dan informasi riset atau aplikasi riset dan pengembangan terkini dalam bidang teknologi. Ruang lingkup meliputi bidang Informatika, Teknik Mesin, Teknik Elektro,Teknik Sipil, Teknik Industri, Ilmu Komputer dan Sains. Jurnal ini terbit 1 tahun 4 kali (Januari, April, Juli dan Oktober).
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Articles 181 Documents
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Analisis Pengaruh Rake Angle dan Kecepatan Putaran Spindle Menggunakan Pahat HSS terhadap Kekasaran Permukaan pada Material ST 41 Junaidi Arifin
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6440

Abstract

This study aims to analyze the effect of variations in rake angle and spindle speed using HSS (High-Speed Steel) cutting tools on surface roughness during the turning process of ST 41 steel. ST 41 steel is a low-carbon steel widely used in industry due to its ductility and machinability; however, its surface finish is significantly influenced by cutting parameters. In this study, three rake angle variations were used, namely 15°, 20°, and 25°, as well as three spindle rotational speed variations, namely 360 rpm, 560 rpm, and 800 rpm. The research method employed was an experimental design using a factorial approach, in which the turning process was performed using a conventional lathe. The surface roughness of the turned parts was measured using a Surface Roughness Tester, and the results were statistically analyzed to determine the effect of each variable. The results showed that both the rake angle and spindle speed had a significant effect on the surface roughness value (Ra). The lowest surface roughness value was obtained with a combination of a 25° rake angle and a spindle speed of 360 rpm, which produced the smoothest surface. This indicates that the rake angle and spindle speed can influence surface roughness, as the cutting process becomes more efficient and chip formation is smoother.
Analisis Risiko Kesehatan dan Keselamatan Kerja menggunakan Metode Hirarc pada Area Loading Point PT Megah Bara Sejahtera Kabupaten Sarolangun Jambi Andini Rahmania; Ridho Yovanda; Dedi Yansen
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6566

Abstract

Loading point activities in mining areas have high potential hazards and occupational accident risks due to slope conditions, the use of heavy equipment, and material loading activities. This study aims to identify hazards, assess risk levels, and determine risk control measures in the loading point area at PT Megah Bara Sejahtera, Sarolangun Regency, Jambi, using the Hazard Identification, Risk Assessment and Risk Control (HIRARC) method. The research method used was descriptive qualitative with data collection techniques through field observations, interviews, and documentation. Risk assessment was carried out by determining the likelihood and severity values for each work activity in the loading point area. The results showed that there were 5 potential risks in loading point activities, consisting of 1 Extreme risk category and 4 High risk categories. The percentage of risk levels showed that 20% were included in the Extreme category and 80% were included in the High category. The main risks identified included slope failure, falling materials, slipping or overturning heavy equipment, as well as soft soil conditions and steep working areas. Risk control measures were implemented through the application of safety benches, slope condition inspections, work area supervision, the use of personal protective equipment (PPE), and increased supervision of heavy equipment operations. Based on the results of the study, it can be concluded that loading point activities at PT Megah Bara Sejahtera have a high level of risk, therefore stricter risk control measures are needed to minimize the potential for work accidents.
Perancangan Sistem Monitoring Arus dan Tegangan Listrik Rumah Tangga Berbasis ESP32 Murdi Murdi; Dwi Sari Ida Aflaha
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6671

Abstract

This study aims to design and implement a household electrical current and voltage monitoring system based on the ESP32 microcontroller. The system integrates an ACS712 current sensor and a ZMPT101B voltage sensor to acquire electrical parameters, while the ESP32 processes the sensor data and displays the results through an LCD and an Internet of Things (IoT) platform, ThingSpeak, for remote monitoring. An experimental quantitative approach was used. The system was tested by comparing sensor measurements with a Sanwa CD800a digital multimeter under household electrical load conditions. Measurement error was calculated from the absolute difference between sensor and multimeter readings relative to the multimeter value. The voltage test consisted of ten measurements and produced an average error of 3.82%, with the highest error of 13.64% and the lowest of 0.90%. The current test consisted of fifteen measurements using 100 W, 133 W, and 300 W loads and produced an average error of 6.30%, with the highest error of 11.11% and the lowest of 2.21%. Calculated power ranged from 85.72 W to 285.02 W and increased consistently with the applied load. The integrated system successfully displayed local measurements and transmitted data through IoT, with a response time of approximately 1–3 seconds. These findings indicate that the developed prototype can provide real-time household electrical monitoring with practical measurement performance, while further sensor calibration is recommended to improve accuracy.
Pengaruh Variasi Jumlah Belokan Pipa terhadap Karakteristik Kinerja Pompa Sentrifugal Tunggal Mujiburrahman Mujiburrahman; Muhammad Suprapto
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6672

Abstract

Centrifugal pumps are widely used to transport water, oil, and other fluids in industrial and utility systems, making pump performance an important consideration in system design and maintenance. This experimental study evaluates the performance characteristics of a single centrifugal pump under two unidirectional piping configurations, namely three elbows and five elbows. Testing was conducted in the Mechanical Engineering Laboratory of Universitas Islam Kalimantan MAB using a 1-inch PVC pipe installation equipped with a flow meter, pressure gauge, ammeter, and voltmeter. The analysis covered flow velocity, discharge, static head, friction head loss, elbow head loss, total head, and electrical power. The three-elbow system produced a discharge of 530 L/h, pressure of 0.14 MPa, current of 22 A, voltage of 230 V, and power of 50.6 W. The five-elbow system produced 420 L/h, 0.10 MPa, 27 A, 260 V, and 70.2 W. The results indicate that additional elbows increase hydraulic losses, reduce discharge and pressure, and increase electrical power requirements, supporting simpler piping layouts for more efficient pump operation. These findings provide practical guidance for minimizing unnecessary bends in centrifugal pump installations.
Karakteristik Hasil Pengecatan pada Benda Kerja Baja SS400 dan Aluminium dengan Variasi Suhu Benda Kerja dan Tekanan Penyemprotan Ach. Muhib Zainuri; Wildhan Hidayatullah
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6677

Abstract

The coating industry is shifting from solvent-based to water-based paints due to lower Volatile Organic Compound (VOC) content, making them more environmentally friendly. However, water-based paint film characteristics are highly sensitive to workpiece temperature and spraying pressure, requiring careful process parameter evaluation to achieve optimal coating quality. This experimental study employed spray coating on SS400 steel and aluminum with varying workpiece temperatures (30°C, 40°C, 50°C) and spraying pressures (2.0, 2.5, 3.0 bar). Coating hardness was measured using a durometer (Shore A, ASTM D2240) and adhesion via cross-cut test (ASTM D3359); data were analyzed using two-way ANOVA (α = 0.05). Hardness on SS400 steel increased from 84.5–86.5 HA at 2.0 bar to 89.5–91.5 HA at 3.0 bar; on aluminum, from 85.5–87.0 HA to 92.0–94.0 HA. Adhesion on SS400 improved from 2B to 4B–5B, and on aluminum from 1B–2B to 4B–5B across the same pressure range. Workpiece temperature was the most dominant factor influencing both hardness and adhesion, while spraying pressure significantly affected hardness but not adhesion. Optimal coating quality was achieved at 50°C and 3.0 bar. Precise control of both parameters is essential for producing high-quality water-based paint coatings on metallic substrates.  
Analisis Penerapan SMK3 Berbasis Job Safety Analysis (JSA) pada Aktivitas Pemuatan Batu Andesit di Crushing Plant PT Anugrah Langgeng Mukti Elen Elfi Alfi Yonika; Suhardiman Gumanti; Ridho Yovanda
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6691

Abstract

The activities of loading andesite material from the stockpile to dump trucks at the crushing plant unit pose significant occupational accident risks, such as falling material, heavy equipment collisions, and dust from processing, necessitating a measurable implementation of the Occupational Health and Safety Management System. This study aims to analyze the implementation of OHSMS with a focus on the creation and execution of Job Safety Analysis (JSA) as an instrument for accident prevention during loading activities at PT Anugrah Langeng Mukti. The research method used is descriptive qualitative through field observations, interviews, and documentation to map work stages starting from unit preparation and equipment maneuvering to material loading. Based on the analysis, hazard identification indicates critical risk potentials during the loading phase and reversing maneuvers of heavy equipment, which require strict control in the form of standard operating procedures, complete personal protective equipment (PPE) usage, and continuous supervision. The conclusion of this study shows that the OHSMS implementation based on JSA is functioning well but still requires optimization in regular hazard socialization for operators to minimize human error. This strategy is expected to enhance the effectiveness of labor protection and operational smoothness in the crushing plant area.
Analisis Prosedur Perawatan Penyangga pada Lubang Sawah Luwung di Tambang dalam Unit Penambangan Ombilin PT Bukit Asam Tbk Iman Akbar; Reni Arisanti; Ridho Yovanda
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6692

Abstract

The stability of underground mine openings depends heavily on the effectiveness of the support systems installed. tunnel sawah luwung at PT Bukit Asam Tbk Ombilin Mining Unit is a long-standing opening currently utilized as a natural laboratory and mining tourism destination. As the tunnel ages, support materials undergo degradation due to both natural and environmental factors, necessitating systematic maintenance procedures to ensure operational safety. This study aims to analyze the physical condition of existing supports, evaluate the maintenance procedures implemented in the field, and identify constraints in the maintenance process. The research method involves field observations, interviews, and literature studies regarding the standard operating procedures (SOP) for support maintenance. The results are expected to provide an overview of the level of support damage and the effectiveness of maintenance actions taken, as well as offer recommendations for procedural improvements to maintain the long-term stability of tunnel sawah luwung. These recommendations can serve as a basis for the company to evaluate and improve safety, maintain the stability of the Lubang Sawah Luwung, and ensure the sustainability of its long-term utilization.
Kajian Teknis Sistem Pemompaan dalam Upaya Penanganan Air di Area Tambang Bawah Tanah PT Bukit Asam Unit Pertambangan Ombilin Muhamad Alfikri Ramadhani; Aris Susilo; Ridho Yovanda
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6693

Abstract

The drainage system is a crucial aspect of underground mining operations at PT BA UPO to keep the work area dry and safe from the threat of high water discharge that could potentially hamper production activities. This research aims to conduct a technical study of the pumping system by calculating the total water discharge entering from groundwater and rain runoff, evaluating the actual pump capacity, and determining the optimal pump head requirements. Through field observation metphods and technical data analysis, the research results indicate that the current pumping system requires optimization in operational duration and settling pond management to improve efficiency. Based on the calculation of the total dynamic head, technical parameters were obtained that can serve as a reference for the company in adjusting pump performance to maximize the discharge of accumulated water out of the mine, ensuring that underground mining operations can be maintained more effectively. The expected optimization can reduce the risk of air pollution and improve the distribution system to support the safety and continuity of underground mining operations.
Analisis Pengelolaan Air Asam Tambang Menggunakan Kapur Tohor (CaO) di KPL 18 Stockpile PT Royaltama Mulia Kontraktorindo Kabupaten Muara Enim Neli Purwanti; Rodiyah Nursani; Aris Susilo
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6694

Abstract

Acid mine drainage (AMD) is one of the negative impacts of mining activities that can significantly reduce environmental quality due to its low pH and high concentration of dissolved heavy metals. Therefore, proper and effective treatment is required before the water is discharged into the surrounding environment. This study aims to analyze the management of acid mine drainage using an active treatment method with quicklime (CaO) and to determine the appropriate dosage required at KPL 18 Stockpile of RMKO (RMKO), Muara Enim Regency. The research methods include field observations and data collection consisting of primary data such as pH, water discharge, pond volume, and lime dosage, as well as secondary data including location maps and rainfall data. Data analysis was carried out through pH measurements at the inlet and outlet channels and supported by jar test experiments to evaluate the effectiveness of lime addition. The results indicate that the pH values at the inlet range from 4.41 to 4.47, while at the outlet they range from 7.81 to .94, which comply with environmental quality standards (pH 6–9). The treatment process involves water flow through channels, processing in settling ponds with the addition of quicklime , followed by discharge into receiving water bodies. The use of quicklime has proven effective in increasing pH and facilitating the precipitation of dissolved metals, indicating that this method is efficient and applicable for AMD management.
Analisis Postur Kerja pada Aktivitas Penggorengan UMKM Kerupuk Jangkar Menggunakan Metode Nordic Body Map, RULA, dan REBA Sofhan Sopyan; Asih Setyo Rini; Eka Lailita Eti Varina
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6721

Abstract

This study examines the level of musculoskeletal risk faced by workers of the home-industry business (UMKM) Kerupuk Jangkar during the frying and packing activities, which are performed almost entirely manually. Preliminary observation indicated postures inconsistent with ergonomic principles, yet no formal posture assessment had previously been conducted at this business. This study aimed to identify the subjective musculoskeletal complaint pattern of five workers using the Nordic Body Map (NBM) questionnaire, and to measure the postural risk level of the frying activity using the Rapid Upper Limb Assessment (RULA) and Rapid Entire Body Assessment (REBA) methods. Body-segment angles were measured from field photographs across two observation sessions using the Angulus photo-based joint-angle measurement application, covering the upper arm, elbow, trunk, and neck; the wrist, wrist-twist, and leg parameters were estimated from direct field observation using the standard criteria of each worksheet because they were not captured photographically. The NBM results from three workers with representative response variation indicated complaints concentrated in the lower back, waist, and buttock region. Consistent with this pattern, the frying activity, characterized by sustained forward trunk flexion, an elevated and extended upper arm, and a nearly straight elbow while operating a long-handled stirring tool, produced a RULA score of 7 and a REBA score of 12, both in the highest action category requiring immediate posture correction. These findings imply that immediate ergonomic intervention, including work-station height adjustment and tool redesign, is required to reduce the musculoskeletal risk faced by the workers.

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