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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 Indonesian Journal of Engineering and Technology (INAJET) 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 Civil Engineering, Building, Construction & Architecture 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 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.
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
THE EFFECT OF WOOD POWDER COMPOSITION AND PARTICLE SIZE ON THE ROUGHNESS OF CO₂ LASER BIOCOMPOSITES Ahmad Saepuddin; Muhammad Khoirur Roziqin
Indonesian Journal of Engineering and Technology (INAJET) Vol. 8 No. 2 (2026): April 2026
Publisher : Fakultas Teknik Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/inajet.v8n2.p26-31

Abstract

This study aims to analyze the effect of pine wood powder composition and particle size on the surface roughness of biocomposites produced by CNC CO₂ laser cutting. The research method employed was an experimental design with variations in wood powder:PVA composition of 70:30, 60:40, and 50:50, and particle sizes of mesh 60, 140, and 200. The specimens were fabricated through manual mixing without the application of pressure during molding and were tested using a surface roughness tester with five measurement points for each variation. The data were analyzed using two-way ANOVA to determine the effects of each variable and their interaction. The results showed that both composition and particle size affected the surface roughness values. The best result was obtained for specimen B3 (60:40, mesh 200) with the lowest Ra value of 8.0566 µm, while the highest value was found in specimen C3 (50:50, mesh 200) at 16.780 µm. In addition, defects such as burning, void, and incomplete cut were identified and contributed to the overall surface quality. It can be concluded that the proper combination of material composition and particle size can improve the cutting quality of biocomposite materials.
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 Vol 7 No 1 (2026): 7.1 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
Konsep Desain Kopi Combre Untuk Industri Skala Mikro Ahmad Saepuddin; Luchyto Chandra Permadi; Priyo Heru Adiwibowo; Wahyu Dwi Kurniawan; Ika Nurjannah; Novi Sukma Drastiawati; Indah Martha Fitriani; Bellina Yunitasari; Rachmad Syarifudin Hidayatullah
Riau Journal of Empowerment Vol 7 No 3 (2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/raje.7.3.200-207

Abstract

One of the challenges faced by micro-businesses like Kopi Combre in the village of Sumberdem, Wonosari District, when they want to use packaging for their products is selecting packaging that is unique and appealing to consumers. The primary goal of this community engagement project is to provide guidance in designing packaging structures and labels suitable for the micro-scale industry, particularly for Kopi Combre. The method involves community engagement and incorporates literature studies and information analysis. This study covers aspects such as coffee product attributes, packaging structure design, and labels. The findings indicate that the most suitable packaging type for the micro-scale industry is the Pouch packaging, while the packaging and label design will feature dark colors and include information about the coffee product and a unique brand.
Co-Authors -, Masykur A. Grummy Wailanduw Abd Wahab Abd Wahab AGUNG PRIJO BUDIJONO Ahmad Zainul Safitri Alfi Fadliana Anggraeni Hadi Pratiwi Anovan Fadhil Muhammad Aris Purwanto Astrid Ika Paramitha Bella Cornelia Tjiptady Bella Cornelia Tjiptady Bellina Yunitasari Bellina Yunitasari Candra Pradhana Choirina, Priska Chuzaimatul Fitriyah Dewi Izzatus Tsamroh Dwi Nirnia Ari Cahyani Fardana, Mochamad Adhi Fitriani, Indah Martha HAFIZH AINUR RASYID, AKHMAD I Made Arsana Ika Nurjannah Ika Nurjannah 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 Muhammad Khoirur Roziqin Novi Sukma Drastiawati Novi Sukma Drastiawati Priyo Heru Adiwibowo Putra, Agus Dwi Rachmad Syarifudin Hidayatullah Rachman Arya Syahputra Rahman, Rifki Zainur Ratna Fajarwati Meditama Ratna Fajarwati Meditama Reno Ade Maulana Rohman, Mojibur Sari, Handini Novita Talifatim Machfuroh Wahyu Dwi Kurniawan Yayi Febdia Pradani Zainal Abidin Zainal Abidin Zamzami, Muhammad Rizal Akbar