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All Journal Jurnal Ilmiah Poli Rekayasa Jurnal Teknologi Terapan Jurnal Teknologi dan Riset Terapan (JATRA) International Journal of Applied Technology Research Journal of Applied Mechanical Technology (JAMET) Jurnal Sains, Teknologi dan Kesehatan
Sukroni, Sukroni
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health

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Effect of Solution Concentration and Anodizing Coating Time on Hardness and Thickness Coating Of 7075-O Aluminum Alloy Endramawan, Tito; Sifa, Agus; Suwandi, Dedi; Permana, Dudung Nana; Amat, Mohammad Azwar; Sukroni, Sukroni; Dionisius, Felix; Sukardi, Casiman
Jurnal Internasional Penelitian Teknologi Terapan Vol 5 No 1 (2024): February 2024
Publisher : Bandung State Polytechnic (Politeknik Negeri Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/ijatr.v5i1.136

Abstract

One of the materials used in ship propellers is aluminum alloy. The advantages of aluminum are that it is easy to cast and relatively resistant to corrosion. This research aims to determine the effect of heat treatment and the effect of variations in the concentration of H2SO4 and immersion time in optimal of the anodizing process on the hardness value of 7075-O aluminum alloy (as-cast aluminum alloy). The method used is solution heat treatment at a temperature of 490ºC with a holding time of 6 hours, quenching using water or oil, with artificial aging at a temperature of 120ºC with a holding time of 24 hours. In the anodizing process, a sulfuric acid solution with various concentrations of 10%, 15%, and 20% with variations in immersion time of 10, 15, and 20 minutes. The results of vickers hardness test on heat-treated specimens with water quenching accompanied by artificial aging is 137.54 HV, it is increased by 47.44%. While the results of the vickers hardness test after anodizing is 213.09 HV, it is increased by 128.42%. Where the optimum hardness value was achieved at a concentration of 15% H2SO4 and an immersion time of 20 minutes. The coating thickness is equal to 25.79 µm.
PERANCANGAN BIOGAS MODEL LANDFILL GAS SEBAGAI BAHAN BAKAR ALTERNATIF Rohmat, yusup Nur; Sukroni, Sukroni; Haris, Emin; Endramawan, Tito; Andrian, Muhammad
EMPIRIS : Jurnal Sains, Teknologi dan Kesehatan Vol. 1 No. 3 (2024): EMPIRIS : Jurnal Sains, Teknologi dan Kesehatan, September 2024
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/1jvqzy72

Abstract

The use of cooking fuel, both in businesses and households, is essential, especially given the lack of alternatives to LPG following the fuel transition. The rise in global oil prices due to fuel shortages has become a global issue. Biogas, produced through the anaerobic fermentation of organic waste by bacteria, generates methane gas that can be utilized as an alternative energy source. Therefore, a landfill gas model biogas machine was designed to convert organic waste, such as cow manure and tofu liquid waste, into alternative fuel. The machine is equipped with a microcontroller system for automatic valve operation and gas pressure monitoring. Static load simulation on the machine frame using SolidWorks software showed that the maximum stress experienced was 10.4 x 10^6 N/m², well below the material's yield strength of 203.9 x 10^6 N/m², indicating safety. The displacement simulation on the machine frame ranged between 0.1–0.2 mm in the loaded areas, and the resulting factor of safety (FOS) was 19.5, signifying a highly safe design (FOS > 1).
PENGUJIAN BUCKET ELEVATOR GEN.01 TM Sukroni, Sukroni; Suwandi, Dedi; Ghozali, Muhamad; Gunawan, Leo Van
Jurnal Ilmiah Poli Rekayasa Vol 18, No 2 (2023): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.18.2.296

Abstract

Post-harvest agricultural products are all activities carried out from the process of handling agricultural products to the process that produces semi-finished products. Improper post-harvest handling will result in yield loss, both weight and product quality. Readiness of mature harvest and post-harvest technology will improve the quality of rice and the understanding of farmers and technology users in efforts to reduce crop losses. Bucket elevator is a tool for moving material that can be used to lift grain during the grain milling process, which can help work to move grain from the surface into the milling machine. In the Bucket Elevator test results, the effective rotational speed is 352.5 Rpm using a 1 hp 3 phase motor. The design of model 1 is the optimal bucket for lifting grain, resulting in a net weight of 243 gr/bucket contents with a maximum capacity of 280 gr/bucket. When attached to the Bucket carrier belt with 3 test results with different 1 hp motors get test results 1 = 22.5 kg/m , test 2 = 21.3 kg/m , and test 3 = 22.7 kg/m , with average result– average 22.1 kg/m. The noise test on the Bucket Elevator gets the results of noise intensity at 3 different points with an average value of point 1 (front) = 77.7 dBA, point 2 (side) = 72.0 dBA, and point 3 (top) = 77, 1dBA.
RANCANG BANGUN MESIN PENCETAK TUSUK SATE MENGGUNAKAN TEKNOLOGI DOUBLE ROLL UNTUK MENINGKATKAN PRODUKSI TUSUK SATE DI DESA KRASAK Sukroni, Sukroni; Ghozali, Muhammad; Gunawan, Leo Van
Jurnal Teknologi Terapan Vol 11, No 1 (2025): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v11i1.804

Abstract

The expansion of the market or need for satay skewers has resulted in micro, small and medium enterprises producing satay skewers, especially in Krasak Kualahan village, to meet consumer needs. In Krasak village, micro, small and medium businesses still use traditional methods to process bamboo into skewers. However, this method requires a long time. Therefore, this machine was created to help skewer production businesses speed up the production process. By making a skewer printing machine using Double Roll technology, it will help businesses to increase production results. Double Roll technology is a technology that utilizes two rolls that are close together to produce thrust. The way this skewer molding machine works is by inserting bamboo pieces 50mm wide and 0.8mm thick, 22 cm long between the rollers that coincide with each other. This machine has 2 knife functions, namely flattening and forming uses an AC electric motor as a driver with specifications 1Phase 1HP 1400RPM.
RANCANG BANGUN MESIN CETAK ECO PAVING BLOCK PNEUMATIK BERBASIS LIMBAH PLASTIK Kusmayadi, Adi; Sukroni, Sukroni; Haris, Emin; Irawan, Candra; Rohmat, Yusup Nur; Syaifurrahman, Arief; Gunawan, Leo Van; Ghozali, Muhamad
Jurnal Teknologi Terapan Vol 11, No 1 (2025): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v11i1.715

Abstract

The escalating volume of plastic waste has become a critical environmental challenge, highlighting the need for innovative solutions to repurpose it into valuable construction materials. This study aimed to design and develop a pneumatic-based eco-paving block printing machine that uses plastic waste as its primary raw material. The research methodology encompassed the design and simulation of pneumatic circuits, structural analysis involving stress distribution, displacement, and factor of safety (FOS), and strength testing of the fabricated eco-paving blocks. The machine was equipped with a pneumatic cylinder measuring 80 × 75 mm, operating at a pressure of 6 bar and generating a maximum pressing force of 300 kg. The simulation results confirmed that the maximum stress and displacement remained within safe limits, with a minimum FOS of 8.4, thereby ensuring a stable and reliable design. Testing of the eco-paving blocks revealed compressive strengths ranging from 38 to 54 MPa, surpassing the requirements of the SNI 03-0691-1996 standard. This study demonstrates that a pneumatic-based eco-paving block printing machine effectively transforms plastic waste into high-quality construction materials compliant with national standards, offering a practical solution to the plastic waste crisis while promoting sustainability in the construction industry.
PEMBUATAN DAN PENGUJIAN VARIASI PEMBEBANAN TERHADAP WAKTU YANG DIBUTUHKAN MESIN PEMISAH SARI PATI KEDELAI UNTUK PABRIK TAHU Farhan, Ahmad; Ghozali, Muhamad; Novrianda, Raju; Afnanto, Nurul; Nur Rohmat, Yusup; Sukroni, Sukroni; Gunawan, Leo Van; Pradana, Claudha Alba
Jurnal Teknologi dan Riset Terapan (JATRA) Vol. 7 No. 1 (2025): Jurnal Teknologi dan Riset Terapan (JATRA) - June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v7i1.9372

Abstract

In Lohbener Village, Indramayu Regency, small and medium enterprises (SMEs) produce tofu using traditional methods, where the soybean pulp filtering process requires significant time and physical effort. To address this issue, a soybean pulp filtering machine was developed to improve filtering efficiency. The machine was tested with three different input loads—5 kg, 10 kg, and 15 kg—at a constant speed of 57 rpm. The filtering times recorded were 3 minutes 10 seconds, 5 minutes 17 seconds, and 8 minutes 21 seconds, respectively, determined by the point at which no more liquid discharged from the system. The final weights of the filtered soybean pulp were 1.5 kg, 5.7 kg, and 7.4 kg, respectively. These weight differences were influenced by an unbalanced soybean-to-water ratio, which affected extraction effectiveness. The average moisture content of the filtered pulp was 18% for the 5 kg load, 14.90% for 10 kg, and 15.17% for 15 kg. These results indicate that the use of the filtering machine significantly improves filtering efficiency compared to manual methods, in terms of time, output, and pulp quality. Overall, the machine has a positive impact on increasing productivity and product quality in tofu production at the SME level.
Rancang Bangun Mesin Pemotong Tahu Otomatis Berbasis Elektropneumatik dengan Pendekatan Participatory Rural Appraisal dan Eksperimental Ghozali, Muhamad; Luthfi, Muhammad; Gunawan, Leo Van; Sukroni, Sukroni; Jayamulya, Agus; Rifani, Ari Khoeri
Journal of Applied Mechanical Technology Vol 4 No 1 (2025): JOURNAL OF APPLIED MECHANICAL TECHNOLOGY (JAMET)
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/journalofappliedmechanicaltechnology.v4i1.309

Abstract

ABSTRACT – Manual tofu cutting is often time-consuming and less efficient, necessitating innovation to enhance productivity. This study aims to design an automatic tofu cutting machine as a replacement for the manual cutting process. The method used is Participatory Rural Appraisal (PRA) with an experimental approach. The design process involves simulations to determine the machine's technical specifications, resulting in a minimum pneumatic piston diameter of 24 mm, an inertia of 88,281.25, and a maximum stress of 0.24 N/mm². Testing shows that the machine can cut 112 pieces of tofu in 3.8 seconds. These results indicate that the automatic tofu cutting machine significantly improves the efficiency and speed of the cutting process compared to manual methods. This research contributes to the development of more efficient food processing technology applicable to small-scale industries.
Co-Authors Adi Kusmayadi Afnanto, Nurul Ahmad Farhan, Ahmad Amat, Mohammad Azwar Candra Irawan Endramawan, Tito Felix Dionisius Haris, Emin Jayamulya, Agus Leo Van Gunawan Muhamad Ghozali, Muhamad Muhammad Andrian, Muhammad Muhammad Ghozali Muhammad Luthfi Novrianda, Raju Nur Rohmat, Yusup Permana, Dudung Nana Pradana, Claudha Alba Rifani, Ari Khoeri Sifa, Agus Sukardi, Casiman Suwandi, Dedi Syaifurrahman, Arief