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All Journal SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Prosiding Semnastek JITTER (Jurnal Ilmiah Teknologi Informasi Terapan) AGROSCIENCE Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat BERNAS: Jurnal Pengabdian Kepada Masyarakat Unram Journal of Community Service (UJCS) Industrial Research Workshop and National Seminar Journal of Mechanical and Manufacture J-ENSITEC (Journal of Engineering and Sustainable Technology) Seminar Nasional Teknologi dan Multidisiplin Ilmu Greenation International Journal of Engineering Science SEMINAR TEKNOLOGI MAJALENGKA (STIMA) International Journal of Applied Information Systems and Informatics
Engkos Koswara
Universitas Majalengka
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PROSES PEMBUATAN HEADING PC-BAR MENGGUNAKAN MESIN HEADING PANAS DI PT WIJAYA KARYA BETON TBK PPB MAJALENGKA Febriyanto, Muhammad Rival; Koswara, Engkos
SEMINAR TEKNOLOGI MAJALENGKA (STIMA) Vol 9 (2025): Seminar Teknologi Majalengka (STIMA) 9.0 Tahun 2025
Publisher : Universitas Majalengka

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Abstract

This Practical Work Report explains the process of making PC Bar heading using a hot heading machine and the quality control process of PC Bar head quality at PT. Wijaya Karya Beton Tbk PPb Majalengka. The goal is to make PC Bar heads using hot heading machines and carry out quality control of PC Bar quality. In making PC Bar headings using hot heading machines, there are several stages from air supply, oil supply, workpiece clamping, workpiece heating, hammer forming, workpiece removal and cooling. In addition, this report discusses the quality control process of PC Bar head quality. PC-Bar headings that pass the Engineering and Quality process have a head diameter of 13-14 mm and a head thickness of 5-6 mm. Through this practical work report, it is hoped that readers can gain insight into the process of making PC Bar heads using hot heading machines and the company's contribution in maintaining product quality.
PROSES KERJA MESIN STRESSING SIMULTAN (MSS) PADA PRODUK TIANG PANCANG TIPE MIDDLE PILE DIAMETER 500 MM DI PT WIKA BETON PPB MAJALENGKA Hidayat, Adam; Koswara, Engkos
SEMINAR TEKNOLOGI MAJALENGKA (STIMA) Vol 9 (2025): Seminar Teknologi Majalengka (STIMA) 9.0 Tahun 2025
Publisher : Universitas Majalengka

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Abstract

Simultaneous Stressing Machine is one of the stages in the prestressed concrete process, namely by providing tension on the steel wire (PC Bar or PC Wire) to overcome the weakness of concrete in withstanding tensile force. The purpose of this study focuses on the working stages of the stressing machine and the calculation of mechanical parameters. The work process of the simultaneous stressing machine consists of several stages starting from preparation, machine inspection, rod installation to the MSS, parameter input, stressing process, and technique and quality. The results of mechanical parameters such as tensile force, elongation, and strain are measured to evaluate the stressing results. With a tension parameter of 50 bar, the process produces a tensile force of 2,800 N, elongation of 0.055 m, and strain of 0.5%. This study provides technical insight into operating the MSS, supporting improved quality and efficiency in prestressed concrete production.
PEMBUATAN PIN 49JPH CAPACITY UP MENGGUNAKAN MESIN BUBUT TA SHING CROWN-4 Wahidin, Dendi; Koswara, Engkos
SEMINAR TEKNOLOGI MAJALENGKA (STIMA) Vol 9 (2025): Seminar Teknologi Majalengka (STIMA) 9.0 Tahun 2025
Publisher : Universitas Majalengka

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Abstract

This research discusses the manufacturing process of the 49JPH Capacity Up Pin using the Ta Shing Crown-4 lathe machine at PT. Tri Jaya Teknik Karawang. The material used is S45C steel, which has mechanical properties that support strength and wear resistance. The pin production process includes planning, material and tool selection, and several turning steps: facing, straight turning, chamfering, thread cutting M24x3, taper turning, and fillet finishing. Machining parameters were calculated to determine spindle speed, cutting speed, depth of cut, and feed rate. Quality inspection was carried out using a vernier caliper and screw pitch gauge with a tolerance of 0.01 mm. The results show that the manufacturing process successfully produced pins according to design, with product quality meeting standards without surface defects. This indicates that the combination of Ta Shing Crown-4 lathe, S45C steel, and carbide cutting tools is effective in producing precise and durable pins for industrial applications.
PROSES PEMBUATAN SPROCKET DI PT. AMANAH JAYA PERSADA MAJALENGKA Muhammad Setiyo Surya Darma; Koswara, Engkos
SEMINAR TEKNOLOGI MAJALENGKA (STIMA) Vol 9 (2025): Seminar Teknologi Majalengka (STIMA) 9.0 Tahun 2025
Publisher : Universitas Majalengka

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Abstract

The process of making sprockets using a lathe begins with rolling a suitable raw material, such as steel or another metal alloy. The raw material is then installed on the lathe machine table and clamped tightly. After that, the lathe knife is placed near the workpiece and regularly moved in the specified direction, cutting off excess material until it reaches the desired shape and size. Operating a lathe requires a skilled operator to produce sprockets with tight tolerances. The purpose of writing a practical work report at PT. Amanah Jaya Persada is to know the process of making sprockets and know the lathe and CNC processes in making sprockets. The conclusion from this research is that there are 4 processes for making sprockets at PT. Amanah Jaya Persada, namely making drawings using Solidwork, forming shaft holes using a lathe, forming chamfers using a lathe, forming a chain release (Undercut) using a lathe, and forming sprocket teeth using a CNC milling machine.
Assessing The Impact of Water Quality on Freshwater Aquaculture: A Systematic Literature Review Bastian, Ade; Mardiana, Ardi; Koswara, Engkos; Rifki, Muhammad
Journal of Applied Information System and Informatic (JAISI) Vol 3, No 1 (2025): MEI 2025
Publisher : Deparment Information System, Siliwangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/jaisi.v3i1.14180

Abstract

Water quality is a critical determinant of ecosystem sustainability and the productivity of freshwater aquaculture. This study performed a systematic literature review (SLR) to assess the impact of water quality on the growth, health, and yield of freshwater fish. The research examines contemporary technical advancements, such as Internet of Things (IoT) systems, unmanned aerial vehicles (UAVs), machine learning prediction models, and biotechnological methods for monitoring and managing water quality. The literature selection procedure employed the PRISMA framework and encompassed 136 articles sourced from the SCOPUS database. Following rigorous screening processes, three primary publications were chosen for additional examination. The review findings indicate that parameters like dissolved oxygen (DO), pH, ammonia, and temperature significantly influence fish health and production. Contemporary technologies, such IoT and UAVs, have demonstrated their capacity to enhance the effectiveness of water quality monitoring, whilst biotechnology provides novel options for the sustainable treatment of aquaculture waste. This research offers significant insights for scholars, policymakers, and practitioners in the advancement of more efficient and sustainable aquaculture methodologies.
RANCANG BANGUN ALAT PENGERING KERUPUK UBI UNGU UNTUK MENINGKATKAN KAPASITAS PRODUKSI Whydiantoro; Engkos Koswara; Budiman; Asep Rachmat
Jurnal Ilmiah Teknologi Infomasi Terapan Vol. 11 No. 2 (2025)
Publisher : Universitas Widyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33197/jitter.vol11.iss2.2025.2415

Abstract

The raw cracker dryer is designed against several problem identifications found in the surrounding environment so that it can be utilised and used as effectively and efficiently as possible, the tool made takes less than 50 minutes as a whole in the roasting room to reach a temperature of more than 43°C streamline the time and place of heating crackers. In this research, it will be studied how to design a purple sweet potato cracker dryer that suits the needs of the community, which does not require excessive electrical energy. Because the capacity of electrical energy owned by umkm is very limited at a maximum of 900 VA. The heating device is designed with the main frame using Stinles Steel 400 can also be called hollow iron connected with a welding process with a size of 1200 mm long, 700 mm wide, 900 mm high and the distance between the pans is 300 mm. The test results show that the heating device takes less than 60 minutes as a whole in the heating chamber to reach a temperature of more than 43°C.
Pelatihan Dan Pendampingan Digitalisasi Persuratan Desa Kepuh Untuk Meningkatkan Efisiensi Layanan Administrasi Harun Sujadi; Dony Susandi; Engkos Koswara; Budiman Budiman; Whydiantoro Whydiantoro; Ardi Mardiana; Ade Bastian; Asep Rachmat; Dipa Subandi; Tsaqib Ilham Nur; Jujun Badrujaman
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 3 (2026)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v7i3.15985

Abstract

Kegiatan pengabdian masyarakat ini dilaksanakan di Desa Kepuh, Kecamatan Lemahsugih, Kabupaten Majalengka, dengan tujuan mengatasi permasalahan layanan administrasi desa yang selama ini masih dilakukan secara manual. Permasalahan utama yang dihadapi adalah keterbatasan akses layanan karena warga harus datang langsung ke kantor desa, proses birokrasi yang panjang, risiko kehilangan arsip fisik, serta keterampilan digital aparatur yang masih perlu ditingkatkan. Solusi yang ditawarkan adalah penerapan sistem digitalisasi persuratan berbasis web yang memungkinkan warga mengajukan permohonan surat secara daring. Sistem ini dilengkapi fitur login menggunakan email, autentikasi identitas dengan Nomor Induk Kependudukan (NIK) dan verifikasi selfie dengan KTP, serta persetujuan dokumen melalui tanda tangan digital. Metode pelaksanaan meliputi survei lapangan, studi literatur, identifikasi kebutuhan, perencanaan sistem, instalasi aplikasi, sosialisasi, pelatihan, serta evaluasi keberlanjutan. Hasil kegiatan menunjukkan peningkatan efisiensi pelayanan, transparansi administrasi, serta kepuasan warga yang lebih tinggi terhadap kinerja aparatur desa. Aparatur desa juga mengalami peningkatan keterampilan digital setelah mengikuti pelatihan, sehingga sistem dapat dikelola secara mandiri. Selain manfaat teknis, kegiatan ini juga mendorong partisipasi masyarakat dalam mendukung inovasi layanan publik berbasis teknologi. Program ini diharapkan dapat menjadi model penerapan Smart Village yang berkelanjutan, mendukung tata kelola desa yang lebih efektif, serta dapat direplikasi di desa lain dengan kondisi serupa.
Pemberdayaan Kelompok Pengrajin PIP melalui SOP dan Pelatihan Pengendalian Material untuk Mencapai Target Zero Defect Whydiantoro; Erni Sari Lumban Toruan; Engkos Koswara; Dede Abdurahman
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 3 (2026)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v7i3.18908

Abstract

Sektor manufaktur di Kabupaten Majalengka mengalami pertumbuhan pesat, khususnya pada kelompok pengrajin produk injeksi plastik lokal yang menyuplai komponen otomotif. Namun, industri kecil menengah (IKM) tersebut menghadapi tantangan berat terkait efisiensi produksi dan kualitas produk yang tidak konsisten, dengan rata-rata tingkat produk cacat harian mencapai 33%, di mana cacat silver streak mendominasi sebesar 76% dari total kegagalan produk. Kegiatan Pengabdian kepada Masyarakat (PkM) ini bertujuan untuk meningkatkan kualitas dan efisiensi produksi melalui standardisasi Standard Operating Procedure (SOP), pelatihan pengendalian material, serta penerapan dashboard monitoring berbasis Failure Mode and Effect Analysis (FMEA) terintegrasi. Metode yang digunakan adalah Participatory Technological Development yang meliputi lima tahapan utama: sosialisasi, pelatihan, penerapan teknologi, pendampingan dan evaluasi, serta keberlanjutan program melalui pembentukan Gugus Kendali Mutu (GKM). Hasil implementasi program menunjukkan keberhasilan nyata dengan penurunan total angka produk reject dari 33% menjadi di bawah 10%, yang didorong oleh reduksi kontaminasi material hingga 90% dan kestabilan parameter suhu barrel mesin injeksi. Simpulan dari kegiatan ini adalah bahwa integrasi alat digital dan sistem SOP visual mampu mengubah manajemen kualitas dari reaktif menjadi preventif, sekaligus meningkatkan profitabilitas ekonomi dan daya saing kelompok pengrajin mitra.
Co-Authors Abdul Kholiq Abdullah, Fatwa Muhammad Maulid Ade Bastian adi oksifa rahma harti Adiyanto Pratama, Sandy Aggy Panca Suwanda Agung Dwi Haryanto, Totok Agus Yuniawan Isyanto Ahmad Fudholi Ahmad Yahya Ahmad Yahya Alfian Esa Hidayat Amalia, Lidya Nur Andri Reynaldi Anis Nurul Fitria Ardi Mardiana Ariandoyo, Dodi Arief Rijaluddin Asep Rachmat, Asep Azi Zauhari Billy Adrian Fernanda Budiman Budiman Budiman Budiman Dede Abdurahman Dewi Jannati, Eidelwei Dewi Jannati, Eidelweis Dipa Subandi Dony Susandi Eidelweis Dewi Jannati Erni Sari Lumban Toruan Fadhlurrahman, Azhar Fadilah, Fadil Faqih, Reynanda Maulana Yusuf Febriyanto, Muhammad Rival Firdaus, Yusup Haris Budiman Harti, Adi Oksifa Rahma Harun Sujadi Hidayat, Adam Ida Ayu Putu Sri Widnyani Ida Marina Ida Marina, Ida Ii Supiandi Ilham Adhya Indriana, Kovertina Rakhmi Intan Kusumadewi ISMAIL, AGUS YADI Jujun Badrujaman Karina Agisni Widyastuti Kusumadewi, Intan Maman Sulaeman Mardina, Ardi Muhamad Dendi Purwanto Muhammad Rifki Muhammad Setiyo Surya Darma Nasim Nasim Nasim, Nasim Panca Suwanda, Aggy Rachmat, Asep Rif'an, Muhammad Riza M. Yunus Rohendi, Muhamad Ruyanto Ruyanto Ruyanto, Ruyanto Saepul Mahmud Sakhidin Sakhidin Saputra, Theo Chandra Setiawan, Tia Setyawan, Azis Budi Slamet Riyadi Slamet Riyadi Sri Ayu Andayani Subandi, Dipa Subhi, Ibnu Sumirat, Perly Tarsudin Tarsudin Tarsudin, Tarsudin Tia Setiawan Tsaqib Ilham Nur Wahidin, Dendi warandi , rofandi Rori Aditiar Warandi, Rofandi Rori Aditiar Whydiantoro Whydiantoro Whydiantoro Whydiantoro Whydiantoro, Whydiantoro Yayat Hendrayana, Yayat Yudi Samantha Yudi Samantha, Yudi Yusup Firdaus Zauhari, Azi