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All Journal Jurnal Ilmiah Poli Rekayasa Jurnal Simetris Journal of Mechanical Engineering Science and Technology Turbo : Jurnal Program Studi Teknik Mesin JURNAL CRANKSHAFT International Journal of Applied Technology Research MACHINERY: Jurnal Teknologi Terapan Semarang Law Review Jurnal Pengabdian kepada Masyarakat (Nadimas) Journal of Applied Mechanical Technology (JAMET)
Suwandi, Dedi
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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 Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences

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Design and Performance Test of Aluminum Melting Furnace fueled by Used Oil endramawan, tito; sifa, agus; suwandi, dedi; dionisius, felix
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 2 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i2.2402

Abstract

Waste is a major problem in the world and Indonesia. Used oil is one of the liquid wastes produced by machines, both in large industrial and private vehicle engines. Handling this waste oil can be done in various ways, one of which is by using it as a liquid fuel with constant heat treatment. One of the applications of this burning is used in metal smelting equipment to melt metal waste in the community, especially those that have been collected by collectors both in the Indramayu region and Cirebon 3 region. In the design process, a simulation of the safety of the material used is carried out using solid work software using A36 steel. For the performance test, several variations were carried out including the input distance of used fuel oil at a distance of 5 cm, 10 cm and 15 cm and the opening of the used oil tap as fuel in the form of , and 1. The test was carried out using fuel oil to melt 1 kg of aluminium The results of the flow simulation process obtained data with a distance of 10 cm where the airflow is sprayed spread out in the burner and the optimal parameter at the time of smelting is that with a tap opening it will be more effective in fuel use and aluminium smelting time.
Analisis Bentuk dan Jumlah Bilah pada Fan Chip Pendingin Portable untuk Proses Drilling Logam dengan Flow Simulation Sifa, Agus; Syahfitri, Shofi; Suwandi, Dedi
Journal of Applied Mechanical Technology Vol 2 No 1 (2023): Journal of Applied Mechanical Technology (JAMET)
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (646.026 KB) | DOI: 10.31884/jamet.v2i1.31

Abstract

In the metal drilling process, tool temperature is an important parameter for optimizing cutting conditions, by limiting tool wear so that surface roughness can increase. The temperature rise that occurs in the metal drilling process is related to the rate, drill speed, and drill diameter, the drill speed which has a significant influence. One of the efforts to reduce the temperature of the drilling process is by using the Minimum Quantitative Lubricant (MQL) method. The MQL method is more effective by utilizing the surrounding air by making a fan that produces cold air. The method of this research is Computational Fluids Dynamic (CFD) simulation using flow simulation, with parameters 3 shapes of the blades, and variations in the number of blades 3,5 and 7. The purpose of this study is to analyze the shape and number of blades on a portable chip fan for metal drilling cooling processes. The CFD simulation results obtained from Model 2 and the number of blades 3 with a minimum temperature of 29.87°C and a maximum temperature of 30.19°C.
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.
PENERAPAN TEKNOLOGI MESIN PENCETAK BAKSO BERBASIS PNEUMATIK PADA UMKM Suwandi, Dedi; Sifa, Agus; Supriatun, Evi
Jurnal Pengabdian kepada Masyarakat (NADIMAS) Vol 2 No 2 (2023): Jurnal Pengabdian kepada Masyarakat (Nadimas)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/nadimas.v2i2.49

Abstract

Meatballs are one of the favorite foods of Indonesian people. The naming of meatballs depends on the place where they are made, the meat used, the way they are served, the way they are made, and their size and shape so the names vary greatly. Meatballs are generally round with an average diameter of 15-35 mm. So far, the process of making meatballs in the community still uses manual methods, by forming the meatball dough using hands and a spoon. Hold the dough in your hands and then knead it so that it comes out between the holes of your index finger and thumb. The dough that comes out is round, then scooped out using a spoon and put into a container filled with hot water. This manual meatball molding process requires skill, and patience and has the danger of being exposed to hot water so not everyone can do it. With this opportunity, a meatball-making machine with a pneumatic system was created. This machine uses a power source from a compressor of at least 10 bar which drives two pneumatic systems. The first pneumatic system moves the TBC 40-400 pneumatic cylinder piston which presses the dough down into the mold. The second pneumatic system drives two 25X300 pneumatic cylinder pistons. The combination of the two pneumatic systems is capable of producing 60 meatballs per minute with a diameter of 30 mm.
PENERAPAN TEKNOLOGI MESIN PEMISAH KULIT ARI KEDELAI UNTUK MENINGKATKAN KAPASITAS PRODUKSI UMKM KERIPIK TEMPE Suwandi, Dedi; Sifa, Agus; Endramawan, Tito
Jurnal Pengabdian kepada Masyarakat (NADIMAS) Vol 3 No 1 (2024): Jurnal Pengabdian kepada Masyarakat (Nadimas)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/nadimas.v3i1.57

Abstract

Keripik tempe merupakan produk turunan dari kacang kedelai yang kaya akan gizi dan banyak manfaat untuk dikonsumsi. Permasalahan yang dihadapi produsen keripik tempe sebagian besar proses pembuatannya masih menggunakan metode manual. Contohnya proses pengupasan kacang kedelai dimana biji kedelai dipisahkan dari kulit arinya. Proses ini biasanya dilakukan oleh karyawan menggunakan tangan dan sendok. Proses pengupasan dilakukan pada saat kedelai masih hangat setelah kedelai direbus. Proses ini sangat penting karena jika kulit ari tidak dibersihkan maka akan mempengaruhi kualitas keripik tempe yang dihasilkan, keripik tempe akan memiliki rasa asam dan mudah basi. Solusi yang diberikan yaitu dengan membuat mesin pengupas kulit ari kedelai single roll. Mesin pengupas kulit ari kedelai single roll digerakan oleh motor listrik 1 phase 0,5 Hp, 1400rpm. Putaran motor listrik tersebut diturunkan menjadi 280 rpm yang menggerakan roll stanless steel bergelombang. Putaran roll menggilas kedelai yang turun dari hopper input, kemudian dibagian depan roll terdapat pemisah kulit ari dan kedelai yang sudah terkupas. Kulit ari akan turun ke bawah hopper kulit sedangkan kedelai terkupas akan keluar menuju hopper output. Kapasitas mesin pemisah kulit ari kedelai mampu mengupas 1 kg kedelai per satu menit. Semua kedelai terkupas 100% dengan 65% kulit terpisah ke bagian hopper kulit, kemudian masih terdapat 35% kulit yang terbawa ke hopper output bersama kedelai yang terkupas. Dengan mesin tersebut mitra pengguna dapat mengurangi waktu pengupasan dari 120 menit menjadi 30 menit per 100 kg.
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 DAN PENGUJIAN MESIN PENGADUK SUSU KEDELAI DENGAN VARIASI BENTUK PENGADUK Irawan, Candra; Suwandi, Dedi; Kusmayadi, Adi; Rohmat, Yusup Nur
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 3 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.14241897

Abstract

Haurgeulis District in Indramayu Regency is known as one of the areas producing quality soybeans. In this region, many mothers who are members of UMKM take advantage of this potential by producing soy milk. However, the process of making soy milk is still manual, one of which is the stirring stage during heating. This often results in inconsistent results and requires quite a lot of effort. To overcome this problem, research was carried out to design and build a soy milk mixing machine expected to increase production efficiency and quality, as well as support UMKM in developing their businesses. The purpose of this design is to make the mixing process easier, the method used is how much power is needed, how much production capacity, how much electricity is used, and which form of the stirrer can produce fast, consistent, and even mixing. The result of this design is a motor power of around 0.18 kW. Apart from that, stirrer C required the shortest time with an average of 2.54 seconds. The process of cooking milk in one production of 4 liters takes 1 hour and 6 minutes over low heat. At 100 rpm rotation, the power consumed is 844.2 W. The electricity costs to operate this machine are around IDR 7,000-IDR 10,000 per month to produce 1 hour per day.
PENERAPAN TEKNOLOGI PENGADUK DAN PENGERING UNTUK MENINGKATKAN PRODUKSI JELI JERUK SEGERAN Suwandi, Dedi; Luthfi, Muhammad; Amat, Mohammad
Jurnal Pengabdian kepada Masyarakat (NADIMAS) Vol 3 No 2 (2024): Jurnal Pengabdian kepada Masyarakat (Nadimas)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/nadimas.v3i2.80

Abstract

The orange fruit produced in the village of Segeran, Juntinyuat sub-district, Indramayu regency is very abundant during the main harvest. To utilize the BUMDes fruit, he immediately had the idea of ​​making orange jelly. Previously, all processes for making orange jelly still used manual methods, such as squeezing, stirring, cutting and drying the orange jelly. With these problems, an orange jelly mixer and orange jelly dryer were made to increase the production of orange jelly immediately. The initial process of mixing jelly ingredients using human hands was only capable of producing 10 kg per hour. The manual mixing process was replaced with a jelly dough mixer so that the capacity increased to 30 kg per hour. This stirrer is driven by a 180 watt single phase Houle motor with a 1:5 gearbox, setting the stirrer fin rotation speed to 100 rpm. Next is the drying process for the orange jelly, initially using solar heat which takes 7 days. This drying process is replaced with a jelly dryer which can reduce drying time from 7 days to 8 hours. The dryer uses 4 heaters with 900 watt power with a capacity of 15 kg per drying process at a temperature of 600C. With these two pieces of equipment, the production capacity for orange jelly immediately increased from the initial 10 kg per week to 90 kg per week.
Rancang Bangun Mesin Pencacah Sampah Plastik Tipe Crusher dengan Bilah Monolitik Ganda Luthfi, Muhammad; Suwandi, Dedi; Badruzzaman, Badruzzaman; Amaria, Laila; Juniansyah, Bagas
JURNAL CRANKSHAFT Vol 8, No 1 (2025): Jurnal Crankshaft Vol.8 No.1 (2025)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v8i1.14125

Abstract

Banyaknya sampah plastik membawa dampak negatif untuk kesehatan dalam jangka panjang, seperti kanker, dan pencemaran lingkungan karena sulit terurai oleh tanah, sehingga perlu proses daur ulang yang sbeelumnya dicacah terlebih dahulu. Penelitian ini bertujuan untuk menginvestigasi proses perancangan hingga pengujian performa mesin pencacah sampah tipe crushing dengan bilah monolitik ganda yang parameter ujinya kualitas hasil cacahan karena pengaruh kecepatan putaran bilah dan jenis/tebal sampah yang belum diteliti sebelumnya pada tipe bilah ini. Pengujian dilakukan secara eksperimen. Dari hasil perancangan, didapatkan hasil estimasi kebutuhan daya motor adalah berkisar 3,8 hp dengan Safety Factor dari rangka sebesar 15. Bilah yang dibuat, dihasilkan dari pembubutan benda kerja poros besar utuh dan dibentuk sesuai pola dari gambar kerja. Sedangkan hasil pengujian menunjukkan bahwa jenis atau tebal sampah lebih berpengaruh pada dimensi hasil cacahan, dengan hasil cacahan terkecil dihasilkan dari jenis sampah industri, akrilik dengan dimensi 2,72 mm – 31,78 mm. Sedangkan waktu yang dibutuhkan untuk mencacah 500 gram plastik berkisar 1 menit..
Uji Performa Mesin Penggiling Padi dengan Rice Rubber Roller Horizontal: Performance Test of a Rice Milling Machine with a Horizontal Rice Rubber Roller Suwandi, Dedi; Badruzzaman, Badruzzaman; Amat, Mohammad Azwar; Luthfi, Muhammad
Journal of Applied Mechanical Technology Vol 3 No 1 (2024): Journal of Applied Mechanical Technology (JAMET)
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/journalofappliedmechanicaltechnology.v3i1.301

Abstract

Huller is the main machine that determines the quality and quantity of production in the rice milling industry. The current problem, especially in the small-scale rice milling industry, is that they still use locally made huller machines that use 6-inch diameter rice rubber rollers with a capacity of 800-1,200 kg/hour. Local huller machines produce a yield (broken rice) of 30-40%, so three huller machines and one polisher machine are needed in one production line. This machine assembly requires energy, human power and high costs. With these problems, a machine is needed that is capable of increasing the yield and milling capacity. Huller machine with horizontal rice rubber roller has a dimension specification of 1.3X0.9X2 meters; Rice rubber roller diameter 10 inches; 3 phase electric motor 20HP 15KW 1,500 rpm. The huller machine has been tested at the CV. Putra Maju rice mill, Wirakanan Village, Kandanghaur District, Indramayu Regency for 4 months. Test results Huller machine capacity 1,600 kg/hour ± 50 kg with a yield of 72% ± 2%.
Co-Authors Aini, Putri Diyan Nur Amaria, Laila Amat, Mohammad Amat, Mohammad Azwar Badruzzaman Badruzzaman Candra Irawan Endramawan, Tito Juniansyah, Bagas Kasni Sumeru Kusmayadi, Adi Leo Van Gunawan Muhamad Ghozali, Muhamad Muhammad Junaidi Muhammad Luthfi Muhammad Luthfi Nur Rohmat, Yusup Nuswanto, A. Heru Permana, Dudung Nana Rahmi, Meri Sifa, Agus Sukardi, Casiman Sukroni, Sukroni Supriatun, Evi Syahfitri, Shofi