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All Journal Jurnal Teknik Mesin Jurnal Mechanical Jurnal Teknik Kultivasi Journal of Dynamics Jurnal Teknik Mesin Indonesia G-Tech : Jurnal Teknologi Terapan Jurnal Teknik Industri Terintegrasi (JUTIN) Quantum Teknika Jurnal Teknik Mesin OrchidAgro Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) International Journal of Advanced Multidisciplinary Jurnal Sains dan Ilmu Terapan Journal of Community Service in Science and Engineering Jurnal Rekayasa Proses dan Industri Terapan Abdimas Terapan: Jurnal Pengabdian Kepada Masyarakat Terapan Jurnal Polimesin Indonesia Bergerak: Jurnal Hasil Kegiatan Pengabdian Masyarakat
Romiyadi
Politeknik Kampar
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Perancangan Sistem Kendali Untuk Penyiraman dan Pemupukan Lahan Pertanian Berbasis Smartphone Purnama Irwan; Romiyadi Romiyadi; Adi Febrianton; Purnama Putri, Indah; Dwianda, Yudi
Jurnal Sains dan Ilmu Terapan Vol. 8 No. 1 (2025): Jurnal Sains dan Ilmu Terapan
Publisher : Politeknik Kampar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59061/jsit.v8i1.888

Abstract

ChatGPT said: The processes of irrigation and fertilization in agriculture are time-consuming and physically demanding, as farmers typically irrigate twice daily and fertilize every three to four days. These repetitive tasks can lead to fatigue and reduced efficiency. To address this, we have developed an automated system for irrigation and fertilization that enables farmers to manage these activities remotely via smartphone. The system utilizes a microcontroller programmed based on specific agricultural needs and connected to the internet through Wi-Fi. This connectivity allows farmers to activate irrigation or fertilization with a single tap on their smartphones, anytime and from anywhere. The system aims to increase efficiency, reduce labor, and provide a more cost-effective and precise method of managing agricultural land. By automating routine tasks, farmers can better allocate their time and energy while ensuring optimal crop growth. The final outcome of this research is expected to be applicable directly in the field, allowing for real-world testing and refinement. Furthermore, the findings will be shared through a scientific publication to support knowledge.
Tinjauan Pengembangan Pemukiman dan Tantangan untuk Kota yang Berkelanjutan Romiyadi, Romiyadi; Fatmayati, Fatmayati
Jurnal Sains dan Ilmu Terapan Vol. 8 No. 1 (2025): Jurnal Sains dan Ilmu Terapan
Publisher : Politeknik Kampar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59061/jsit.v8i1.1017

Abstract

Rapid urbanization in Indonesia presents various environmental and social challenges, including increased disaster risk, urban heat island effects, and social disparities in urban settlements. This study examines the role of green infrastructure, sustainable spatial planning, and risk mitigation policies in addressing the adverse impacts of urban growth. Utilizing a literature review and spatial data analysis, findings indicate that implementing sustainable development strategies and integrating disaster risk data into urban planning can enhance urban resilience and improve the quality of life for city residents. The study emphasizes the importance of collaboration among government, communities, and stakeholders to achieve inclusive, environmentally friendly, and climate-adaptive urban development.
Perawatan Mesin untuk Meningkatkan Performa dan Keandalan Mesin dan Peralatan Romiyadi, Romiyadi
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 3 (2025): July
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i3.47078

Abstract

Machine maintenance is a critical component in the industrial and manufacturing sectors to ensure that equipment operates efficiently and has a prolonged lifespan. This study aims to explore the various types of machine maintenance implemented across different industrial sectors, along with the benefits and challenges associated with their application. Utilizing a literature review approach, the study identifies four main types of maintenance: preventive, corrective, predictive, and redesign. Each maintenance type plays a crucial role in enhancing machine performance, reducing downtime, and extending the service life of industrial equipment. Effective maintenance practices offer several advantages, including improved operational performance, reduced repair costs, and enhanced workplace safety. However, the implementation of maintenance strategies presents several challenges, such as high costs, limited availability of skilled labor, and the time required for maintenance procedures. Despite these obstacles, with the adoption of appropriate strategies, such challenges can be effectively managed, enabling companies to achieve greater operational efficiency and long-term sustainability.
Impact of spindle tilt and machining parameters on surface roughness in milling Romiyadi, Romiyadi; Febrianton, Adi
Jurnal Polimesin Vol 23, No 5 (2025): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i5.7258

Abstract

This study aims to analyze the influence of spindle tilt and machining parameters (feed rate, depth of cut, and spindle speed) on surface roughness in milling operations using a Knuth UFM 2 universal milling machine. A parametric experimental approach was used, where parameters were varied systematically to assess their influence on surface quality. Results show that increasing spindle tilt, feed rate, and depth of cut generally raises surface roughness, while higher spindle speeds reduce it, producing smoother surfaces. The optimal surface quality was achieved during the first up-milling test with a spindle inclination of 30°, feed rate of 108 m/min, spindle speed of 720 rpm, and depth of cut of 0.50 mm, yielding a surface roughness (Ra) of 0.258 µm. In contrast, higher tilt angles and cutting loads significantly degraded surface finish, with roughness increasing by up to 95.91% when spindle tilt was raised from 30° to 60°, by 52.86% when depth of cut increased from 0.50 mm to 1.50 mm, and by 79.25% when feed rate rose from 45 m/min to 233 m/min. Conversely, increasing spindle speed from 148 rpm to 720 rpm reduced Ra by 99.81%. These findings highlight the importance of selecting appropriate parameter combinations to achieve precision, efficiency, and sustainability in milling. The results also provide practical reference for industrial applications and vocational training in manufacturing engineering.
Kegagalan Poros Input Gearbox Screw Decanter pada Unit Pengolah Limbah Kelapa Sawit adi, Adi Febrianton; Sepfitrah; Romiyadi; Yuvendius, Hazra; Irwan, Purnama
JURNAL TEKNIK Vol. 17 No. 1 (2023): Edisi April 2023
Publisher : JURNAL TEKNIK UNILAK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/teknik.v16i2.11049

Abstract

The use of Centrifuge Decanter as a waste treatment in industry has been widely used. Centrifuge Decanter separates waste in the form of a mixture of solids and liquids (slury) by utilizing the centrifugal force generated by the difference in the rotation of the tube (bowl) and screw conveyor. The rotation of the screw conveyor is reduced through a cycloidal gearbox. The shaft in the cycloid breaks during operation, for that it is necessary to conduct research to determine the cause of this shaft fracture. This research starts from a literature study that discusses the working mechanism of the decanter and the causes of the failure of the cycloidal gearbox shaft. For completeness of the analysis, data collection includes data on engine operation, physical and mechanical properties of the shaft material, fractography of the shaft and the stresses acting on the shaft. From the results of data analysis, it is known that the shaft has ductile fracture due to overload. The load that causes the shaft to break is the torsional load that comes from the rotation of the decanter tube at the initial start of the engine. Torque due to the rotation of the tube produces a shear stress that exceeds the yield stress of the shaft material plus a stress concentration factor in the fractured shaft fillet area.
Pengaruh Kedalaman Potong Menggunakan Insert Radius 0,4 mm cnmg 120404n Terhadap Kekasaran Permukaan (Surface Roughness) Baja Karbon S45C Febrianton, Adi; Putri, Indah Purnama; Romiyadi, Romiyadi; Irwan, Purnama; Sihotang, Psalmen
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 7 No. 3 (2024): July
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v7i3.28567

Abstract

In the practical and sophisticated world of the manufacturing industry, the best product results are needed. To answer market needs that want products with maximum results and produce them in a short time, the non-conventional Computer Numerical Controlled Lathe (CNC) is available as a machine tool production tool that is controlled using a computer system to cut workpieces which are rotated to determine the roughness value on the workpiece surface. The aim of this research is to obtain the lowest surface roughness results. Using S45C carbon steel material with Sumitomo CNMG 120404-N-Gu-AC8025 brand insert with a Radius of 0.4 mm on the SKT 160A CNC Turning machine. The next process is the process of turning the workpiece with variations in cutting depth of 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm , 0.9mm, 1.0mm, 1.1mm. Using the G96 program code, the feed movement is 0.15 mm/rev with a constant spindle speed of 2700 rpm and using a Stylus as a measure of surface roughness value. By carrying out 1 test on 11 samples, each sample consisting of 3 test points. Based on the results of surface roughness data, the lowest average Ra roughness results for an insert radius of 0.4 mm were 1,115 µm at a cutting depth of 0.6 mm and was included in the roughness tolerance value N6.
Analisis kekuatan tarik pada proses pengelasan SMAW baja selindris AISI 1045 dengan variasi merek elektroda Febrianton, Adi; Putri, Indah Purnama; Irwan, Purnama; Romiyadi, Romiyadi; Dwianda, Yudi
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 7 No. 4 (2024): October
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v7i4.36080

Abstract

Pembuatan papan blockboard menggunakan limbah batang kelapa sawit sebagai upaya pelestarian lingkungan Romiyadi, Romiyadi; Frinaldi, Aldri; Lanin, Dasman; Rembrandt, Rembrandt
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 7 No. 4 (2024): October
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v7i4.36802

Abstract

This study was conducted to make blockboard using oil palm trunk waste as raw material. The purpose of this study was to determine the physical and mechanical properties of blockboard made from oil palm trunk raw materials and compared with the physical and mechanical properties of blockboard available on the market. The mechanical properties tested were tensile strength, flexural strength and air absorption. The oil palm trunk used was waste from rejuvenation that was 25-30 years old. The results showed that blockboard made from oil palm trunk waste had higher tensile strength and flexural strength values ??than market blockboard. Meanwhile, the water absorption capacity of market blockboard is better than the water absorption capacity of blockboard made from oil palm trunk waste. This study was conducted to implement one of the government policies in the context of utilizing oil palm waste, especially oil palm trunk waste as an effort to preserve the environment.
Pelatihan Penerapan Standar K3 untuk Meningkatkan Keamanan dan Kesehatan Kerja pada UMKM Pengelasan di Desa Kampar Adi Febrianton; Purnama Irwan; Romiyadi, Romiyadi; Indah Purnama Putri; Yudi Dwianda; Widya Sinta Mustika
ABDIMAS TERAPAN : Jurnal Pengabdian Kepada Masyarakat Terapan Vol. 3 No. 2 (2025): Desember: ABDIMAS TERAPAN: Jurnal Pengabdian Kepada Masyarakat Terapan
Publisher : Politeknik Kampar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59061/abdimasterapan.v3i2.1254

Abstract

Occupational safety and health (K3) is very important to be applied in small and medium industries. In addition to reducing the risk of work accidents, the implementation of K3 can also provide benefits for the industry, such as increasing productivity, maintaining the quality of work results, and creating a safe and comfortable work environment. Kampar Village, Kampa District, has five MSMEs engaged in welding. Based on the survey, almost all of these MSMEs have not implemented the implementation of K3 properly, especially due to the lack of employee awareness in implementing safe work behavior. The lack of employee knowledge about the principles of K3 is also the cause of low concern for occupational safety. In addition, MSMEs have not provided complete personal protective equipment (PPE), so the risk of work accidents is higher. Therefore, training related to the implementation of K3 standards is needed to improve employee welfare while supporting the progress of MSMEs. This training is given to MSME owners in Kampar Village, Kampa District, so that they are able to implement K3 standards consistently and sustainably in welding business activities.
Implementation of Preventive Maintenance for CNC Machines in Vocational Education Facilities: A Case Study at Politeknik Kampar Romiyadi Romiyadi; Adi Febrianton
G-Tech: Jurnal Teknologi Terapan Vol 9 No 4 (2025): G-Tech, Vol. 9 No. 4 October 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i4.7951

Abstract

This research aims to optimize the preventive maintenance system for CNC machines in the context of vocational education, with a focus on improving practice efficiency and reducing downtime. The study was conducted at Politeknik Kampar using a quantitative-descriptive approach integrated with a case study method. Quantitative data were obtained from machine performance logs, including total operating hours, number of breakdowns, and maintenance time before and after preventive maintenance implementation. Descriptive data were gathered through structured interviews and direct observation of CNC training sessions. The research focused on two types of machines, namely the CNC Milling HURCO VM 10 and the CNC Turning Center SKT 160A, which are intensively used in practical training activities. Prior to the implementation of the preventive maintenance protocol, the existing maintenance system was reactive and unscheduled, leading to frequent breakdowns and extended operational downtime. Following the implementation of the preventive maintenance program over a six week period, the frequency of machine breakdowns decreased by approximately 45%, and average downtime was reduced from 6.2 hours to 3.4 hours per week. Consequently, practice efficiency increased by about 28%, as reflected in the higher completion rate of student machining tasks within the allocated schedule. Student involvement in daily maintenance also contributed to building practical awareness of the importance of maintenance in industrial settings. The findings demonstrate that preventive maintenance not only enhances machine reliability but also strengthens vocational learning processes based on hands-on skills.
Co-Authors Adi Febrianton Adi Febrianton Adi Febrianton Adi Febrianton adi, Adi Febrianton Ai Komariah -, Ai Komariah Aldri Frinaldi Anna Dhora Danger, Crobertha Oba Doa Rathu Dasman Lanin Dwianda, Yudi Dyah Setya Wuryani Emon Azriadi Fatmayati Fatmayati Febrianton, Adi Hazra Yuvendius Indah Purnama Puilltri Indah Purnama Putri Irwan, Purnama Lia Amalia Luthful Hakim Masriyanto, Masriyanto Muhammad Subandi Mustika, Widya Sinta Noertjahyani Noertjahyani Nopriadi Nopriadi Nurul Hanati, Ayu Purnama Irwan Purnama Irwan Purnama Irwan Purnama Putri, Indah Putri, Indah Purnama Putri, Indah Purnama Ramaddan, Arya Imansyah Rembrandt, Rembrandt Ria, Elly Roosma Sepfitrah Sihotang, Psalmen Suseno Amien Tulus Swasono Yudi Dwianda Yudi Dwianda