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All Journal Jurnal Taman Vokasi Abdimas Dewantara at-tamkin: Jurnal Pengabdian kepada Masyarakat Riau Journal of Empowerment Jurnal Teknik Mesin Indonesia Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Otopro G-Tech : Jurnal Teknologi Terapan Jurnal Pendidikan Teknik Mesin Undiksha Community Development Journal: Jurnal Pengabdian Masyarakat JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Indonesian Community Journal Journal of Mechanical and Electrical Technology Aceh International Journal of Science and Technology
Ahmad Saepuddin
Universitas Negeri Surabaya
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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PERANCANGAN PROTOTIPE SIZING MACHINE GUNA MEMPERMUDAH PEMILAHAN BIJI KOPI Saepuddin, Ahmad; Adiwibowo, Priyo Heru; Drastiawati, Novi Sukma
Steam Engineering Vol. 5 No. 2 (2024): STEAM Engineering, Vol. 5, No. 2, Maret 2024
Publisher : Program Studi Pendidikan Teknik Mesin, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jptm.v5i2.12837

Abstract

The aim of the research is to design a tool that can assist coffee farmers in determining the quality of the coffee beans produced according to the desired grade value of the coffee beans. The tool is designed to be able to fulfill the functional value produced by the tool. So that farmers can work fast, save time in the process of grading and sorting coffee beans, able to minimize operational costs, and save energy. With an electric motor power of 1 hp, the sizing machine is capable of sorting coffee with a capacity of ±250 kg/hour, therefore a day's the process of sorting 500 kg of coffee can be achieved in less than 2 hours. This really helps coffee farmers in determining the quality of coffee beans without taking a long time.
Workshop Desain Produk Menggunakan Software CAD untuk Siswa SMA/SMK di Sekolah Indonesia Kota Kinabalu Malaysia Priyo Heru Adiwibowo; Ahmad Saepuddin; Akhmad Hafizh Ainur Rasyid; Muhammad Effendy; Muhaji; I Made Arsana; A Grummy Wailanduw; Indra Herlamba Siregar; Ika Nurjannah; Bellina Yunitasari; Aris Purwanto; Agung Prijo Budijono; Anovan Fadhil Muhammad
JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Vol. 7 No. 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jurpikat.v7i1.2937

Abstract

Workshop Desain Produk menggunakan software CAD merupakan bagian dari kegiatan Pengabdian kepada Masyarakat (PkM) yang diselenggarakan oleh Program Studi S1 Teknik Mesin Universitas Negeri Surabaya di Sekolah Indonesia Kota Kinabalu (SIKK). Kegiatan ini bertujuan meningkatkan keterampilan digital dan kreativitas siswa SMA/SMK melalui pembelajaran desain berbantuan komputer menggunakan perangkat lunak open source FreeCAD. Workshop dilaksanakan selama satu hari dengan materi pengenalan CAD dan FreeCAD, navigasi antarmuka, alur kerja desain produk, serta praktik pembuatan model tiga dimensi sederhana. Evaluasi kegiatan dilakukan melalui penyebaran angket kepada 30 peserta untuk mengukur pemahaman materi, kemudahan penggunaan aplikasi, kualitas fasilitator, dan manfaat kegiatan. Hasil evaluasi menunjukkan respons yang sangat positif, dengan lebih dari 85% peserta menyatakan terbantu dan memperoleh keterampilan baru. Selain itu, dokumentasi kegiatan dan penandatanganan Implementation Agreement (IA) antara UNESA dan SIKK memperkuat kerja sama kelembagaan. Secara keseluruhan, workshop ini efektif meningkatkan kompetensi digital dan motivasi siswa serta berpotensi dikembangkan sebagai program pelatihan berkelanjutan
PERANCANGAN ULANG RANGKA DEPALLETIZER UNTUK MENINGKATKAN KEKAKUAN DAN MENURUNKAN TEGANGAN DI PT X Reno Ade Maulana; Ahmad Saepuddin
Steam Engineering Vol. 7 No. 2 (2026): STEAM Engineering, Vol. 7, No. 2, Maret 2026
Publisher : Program Studi Pendidikan Teknik Mesin, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jptm.v7i2.24917

Abstract

The depalletizer frame structure plays a crucial role in maintaining system motion stability during material handling processes in production lines. The existing frame design utilizes angle steel (open section), which has lower moment of inertia and torsional stiffness compared to closed sections, making it prone to larger deformation under operational loading. This study aims to redesign the depalletizer frame structure by replacing the angle section with a hollow (closed section) profile made of ASTM A36 steel and to evaluate its structural performance using Finite Element Analysis (FEA). The main contribution of this study is the quantitative demonstration that the use of hollow sections significantly improves the structural stiffness of the depalletizer frame. The results show a reduction in maximum displacement of 79.97%, from 2.86 mm to 0.573 mm under the most critical loading condition, and a reduction in von Mises stress of 29.13%, from 162 MPa to 114.817 MPa. In addition, the safety factor increases from 1.54 to a minimum of 2.18. Fatigue analysis indicates that the redesigned structure achieves a total life of 1,000,000 cycles, representing a significant improvement of 26.6% compared to the existing design, which has a minimum total life of 790,075.8 cycles. For all loading variations, the displacement values remain below the critical limit of 1.0 mm and the minimum safety factor exceeds 1.5, indicating that the redesigned structure satisfies the required stiffness and operational safety criteria. These findings demonstrate that the use of hollow sections provides design advantages in terms of increased structural stiffness, simplified frame configuration, reduced number of welded joints, and improved reliability and stability of depalletizer systems.
Perancangan Mesin Reciprocator Spray Painting untuk Proses Pengecatan pada Manufaktur Leaf Springs (Studi Kasus Departemen X di PT. XYZ) Ramadhani, Naufal Mumtaz; Saepuddin, Ahmad
Metrotech (Journal of Mechanical and Electrical Technology) Vol 5 No 02: Mei 2026
Publisher : Fakultas Sains dan Teknologi, UNIRA Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/metrotech.v5i02.9294

Abstract

Struktur rangka mesin reciprocator spray painting berperan penting dalam menjaga kestabilan gerak sistem penggerak selama proses pengecatan pada manufaktur leaf springs. Penelitian ini bertujuan merancang rangka mesin reciprocator spray painting dan menganalisis kekuatan strukturalnya melalui pendekatan analisis statik menggunakan simulasi Finite Element Analysis (FEA) berbasis SolidWorks 2024. Rangka dirancang dengan dimensi 1200 × 995 × 286 mm menggunakan profil besi UNP 100 × 50 × 5 mm berbahan ASTM A36 Steel. Simulasi dilakukan dengan blended curvature-based mesh dengan 359014 node dan 185856 elemen, kondisi batas fixed support pada keempat kaki rangka, dan beban sebesar 868 kg sebagai representasi beban puncak dinamis. Validasi dilakukan melalui perbandingan perhitungan manual dan simulasi FEA. Hasil menunjukkan nilai von mises stress maksimum sebesar 61,34 MPa (rasio utilisasi 24,5% terhadap yield strength 250 MPa), displacement maksimum 0,35 mm di bawah batas izin 1,0 mm, dan factor of safety (FoS) minimum 4,06 memenuhi persyaratan SF = 4,0 untuk beban dinamis berdasarkan standar Faires. Kesalahan relatif antara perhitungan manual dan simulasi sangat kecil, yaitu 0,049% untuk von mises stress, 5,41% untuk displacement, dan 0,49% untuk FoS. Rancangan rangka dinyatakan aman secara struktural dan dapat dijadikan acuan teknis perancangan mesin reciprocator spray painting pada industri manufaktur leaf springs.
DESIGN OF A LIFTER FOR HORIZONTAL CHAMBER MACHINE IN A LEAF SPRING PRODUCTION LINE: A CASE STUDY AT PT. XYZ Ahmad Saepuddin; Rachman Arya Syahputra
Otopro Vol 21 No 2 May 2026
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v21n2.p69-77

Abstract

PT. XYZ is an automotive manufacturing company that produces leaf springs. One of the machines used in the leaf spring forming process is a Horizontal Chamber Machine that works by pressing. In its operation, this machine requires a lifter to assist in the transfer of leaf springs and reduce the risk of workplace accidents. The lifter has a frame component that functions as the main structure in supporting the load during the lifting and lowering of the leaf spring. Therefore, it is necessary to design a lifter frame that is safe and capable of withstanding the working load that occurs during the production process. This study aims to design and evaluate the strength of the lifter frame to ensure its safety in operational use. There are three variations of frame designs differentiated by material thickness, namely 10 mm, 12 mm, and 14 mm. The simulation results show that the maximum stress in frame design 1 is 24 MPa, frame design 2 is 16 MPa, and frame design 3 is 12 MPa. The strain values for each design are 0.000066, 0.000048, and 0.000036, while the displacement maximum values are 0.026 mm, 0.016 mm, and 0.016 mm. The safety factors obtained are 11, 15, and 19, respectively. The fatigue life value for all frame designs is  cycles. Based on these simulation results, frame design 1 is declared to have met the strength and safety criteria required for use in the production process
Co-Authors -, Masykur A Grummy Wailanduw Abd Wahab Abd Wahab Agung Prijo Budijono Ahmad Zainul Safitri Akhmad Hafizh Ainur Rasyid Alfi Fadliana Anggraeni Hadi Pratiwi Anovan Fadhil Muhammad Astrid Ika Paramitha Bella Cornelia Tjiptady Bella Cornelia Tjiptady Bellina Yunitasari Candra Pradhana Choirina, Priska Chuzaimatul Fitriyah Dewi Izzatus Tsamroh Dwi Nirnia Ari Cahyani Fardana, Mochamad Adhi Fitriani, Indah Martha Fitriani, Indah Martha Hidayatullah, Rachmad Syarifudin I Made Arsana Ika Nurjannah Ika Nurjannah, Ika Indah Martha Fitriani INDRA HERLAMBA SIREGAR Luchyto Chandra Permadi Luchyto Chandra Permadi Permadi M Dafid M Rizki Chanda Mochamad Sulaiman Mochammad Sulaiman Mojibur MUHAJI muhammad effendy Muhammad Ishak Novi Sukma Drastiawati Permadi, Luchyto Chandra Priyo Heru Adiwibowo Putra, Agus Dwi Rachman Arya Syahputra Rahman, Rifki Zainur Ramadhani, Naufal Mumtaz Rasyid, Akhmad Hafizh Ainur Ratna Fajarwati Meditama Ratna Fajarwati Meditama Reno Ade Maulana Rohman, Mojibur Sari, Handini Novita Talifatim Machfuroh Wahyu Dwi Kurniawan Yayi Febdia Pradani Yunitasari, Bellina Zainal Abidin Zainal Abidin Zamzami, Muhammad Rizal Akbar