Jurnal Mesin Nusantara https://ojs.unpkediri.ac.id/index.php/JMN <p>Jurnal Mesin Nusantara is a media publication for researchers who conduct research in the field of machinery. This journal is published twice a year, in June and December. Any research related to the topics in this journal can be sent to the editorial board for publication. The six (6) topics include Mechatronics, Product Design, Manufacturing, Energy Conversion, Metallurgy and Automotive.</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p> en-US <p>Authors who publish with this journal agree to the following terms:</p> <ol> <li class="show">Copyright on any article is retained by the author(s).</li> <li class="show">The author grants the journal, right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work’s authorship and initial publication in this journal.</li> <li class="show">Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal’s published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.</li> <li class="show">Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.</li> <li class="show">The article and any associated published material is distributed under the&nbsp;<a href="http://creativecommons.org/licenses/by-sa/4.0/" rel="license">Creative Commons Attribution-ShareAlike 4.0 International License</a></li> </ol> fatkurrohman@unpkediri.ac.id (Fatkur Rhohman) harismahmudi@unpkediri.ac.id (Haris Mahmudi) Fri, 01 Jul 2022 00:27:15 +0700 OJS http://blogs.law.harvard.edu/tech/rss 60 Analisa Kebutuhan Daya Mesin Pencetak Pelet Kapasitas 40 Kg/Jam https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17518 <p><strong><em>The p</em></strong><strong><em>roblem faced by (our partners) fish farmers in Bangkok village is the high price and high demand for fish feed. This has resulted in fish cultivators in the village of Bangkok often experiencing losses in terms of time and energy. The fish cultivators there do not yet know how to make fish pellets independently, this is due to the high price of buying a pellet molding machine in the market and fish cultivators do not yet know the technology to design their own pellet printing machine. With the existing problems, the author and the team designed a fish pellet printing device and made sure that the tool used as little power as possible to help make it easier for fish farmers there. Fish pellet printing machine made using an electric motor with a rotation of 1400 rpm and a power of 1.5 HP, using a 1:40 ratio gearbox and found reduction data from a 35 rpm gear box, 12 rpm mixer and 12 rpm pellet printer. This machine is designed to produce 40 kg/hour.</em></strong></p> Bagus Sutra Rinjani, Hesti Istiqlaliyah Copyright (c) 2022 Bagus Sutra Rinjani; Hesti Istiqlaliyah https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17518 Thu, 30 Jun 2022 00:00:00 +0700 Rancang Bangun Wadah Penampung Pelet Ikan Pada Alat Pelontar Kapasitas 12 Kg https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17519 <p><strong><em>Fish is a food ingredient that is widely consumed by Indonesian people. The preferred type of fish is catfish. The problem often experienced by fish cultivators is during the manual feeding process. Fish feed container that serves as a storage place for pellets on the ejector for the automatic feeding process, this container has many types but the one used in this tool is aluminum. Besides being cheap, aluminum also has the properties of being light, soft, easy to shape and anti-rust even when exposed to water. The corrosion resistance of aluminum results from the passivation phenomenon, namely the formation of an aluminum oxide layer when aluminum is directly exposed to the outside air. In this design and research, the material used is pure aluminum which contains 99% aluminum and a few other alloys. This aluminum has a thickness of 1 mm, the tensile strength of pure aluminum is 90 MPa, for aluminum alloys 600 MPa. There are two shapes used in the design of this container, namely tubes and cones, for the dimensions used are 40 cm in diameter, 26 cm in height for the tube while the cone has a height of 25 cm. So the overall height of the fish pellet container is 51 cm. From this size, a capacity of 12 kg of fish pellets was obtained.</em></strong></p> Iksan Basroni, Ah. Sulhan Fauzi Copyright (c) 2022 iksan basroni iksan basroni; Ah. Sulhan Fauzi https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17519 Thu, 30 Jun 2022 00:00:00 +0700 Aplikasi Energi Alternatif Sinar Matahari Pada Mesin Pelontar Pakan Ikan Mandiri Berbasis Microcontroller https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17520 <p><strong><em>The sun is one source of renewable energy that is unlimited and always available, this energy can be converted into electrical energy by utilizing solar panels. Sunlight in Indonesia has great potential to be used as a solar power plant (PLTS), sunlight is an alternative energy with an average radiation of 4.5-4.8 kWh/m2. cell module, with 15% cell conversion efficiency. Automatic fish feeding methods have been developed a lot, but most of the automatic fish feed still uses electricity from PLN, which will be an obstacle in the event of a power outage from PLN. In this study, we tested a solar power generation system (PLTS) that will be used to charge a battery that is used as a power source for a self-sustaining fish feed launcher using a solar tracker as an angle changer of solar panels that can follow sunlight. The test results of the device can work well and can produce stable charging power with an average charging power of 30.61 watts and the highest charging current of 2.5A, with the highest battery charging efficiency of 74%.</em></strong></p> M. lutfi Nur Tohari, Hesti Istiqlaliyah Copyright (c) 2022 M. lutfi Nur Tohari; Hesti Istiqlaliyah https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17520 Thu, 30 Jun 2022 00:00:00 +0700 Variasi Dimensi Pencetak Pakan Ikan Lele Dengan Kapasitas 40 Kg/Jam https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17521 <p><strong><em>Indonesia is the second most biodiverse country after Brazil in Latin America. However, in the fisheries sector, Indonesia can be called the first richest country. There are approximately 2,000 species of fish found in Indonesian waters. Dumbo catfish (Clarias gariepinus) is one type of freshwater fish that is busy being cultivated by people in Indonesia, especially in the province of East Java, especially in Bangkok Village, Gurah District, Kediri Regency. Problems that often occur in fish farming are feed and complain about the high price of commercial feed so that freshwater fish cultivators can spend about 60-70% of the total cost required for cultivation. After reviewing the problems faced by catfish cultivators, the researchers have a solution for these problems, namely by designing a fish feed printing device with a screw press mechanism with a capacity of 40 kg/hour. In this design process, the method used is the design and development method. Based on the test results from the design of the fish pellet extruder machine with a capacity of 40 kg/hour, it can be concluded with a pellet molding machine with a variety of die (mold) with a diameter of 2 mm and 4 mm, the material is made of iron plate with a thickness of 1.8 mm. For driving the cutting blades using an electric motor with a power of 1.5 and a rotation of 1400 rpm with a rotation of 360º. The cutting knife uses stainless steel with a thickness of 0.8 mm. And the results of the machine test with a printed capacity is 39.83 kg/hour.</em></strong></p> Mochamad Arya Rosydianto Pambudi, Hesti Istiqlaliyah Copyright (c) 2022 Mochamad Arya Rosydianto Pambudi; Hesti Istiqlaliyah https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17521 Thu, 30 Jun 2022 00:00:00 +0700 Pengolahan Sampah Kertas Menjadi Bahan Baku Industri Kertas Bisa Mengurangi Sampah di Indonesia https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17522 <p><strong><em>Garbage is an actual problem faced by Indonesia along with the increasing population. Paper is one of the most generated wastes. Indonesia produces 67.8 million tons of waste annually. And produces 8.1 million tons of paper waste annually. The volume of paper waste every 2 years increases by 1%. Paper waste can be recycled by the paper industry. With this research, the management of paper waste is used as a raw material for the paper industry by utilizing the fiber contained in paper waste. In this effort it can be see that recycling waste management can reduce waste in Indonesia by up to 10.2% per year. By recycling paper waste, we maintain the balance of nature and prevent global warming.</em></strong></p> Achmad Zaky Saputra, Ah. Sulhan Fauzi Copyright (c) 2022 Achmad Zaky Saputra; Ah. Sulhan Fauzi https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17522 Thu, 30 Jun 2022 00:00:00 +0700 Analisa Pemilihan Bahan Baku Kertas Daur Ulang Jenis Test Liner Di PT X https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17523 <p><strong><em>Although the world's forest resources have decreased, paper production has increased. Utilization of recycled fiber Recycle Fiber as a substitute for new fiber Virgin Fiber in production has a significant influence in the world of paper industri. In 2011 the world paper industri reached 403 million tons and about (53%) was produced from recycled paper</em></strong><strong><em>.</em></strong><strong><em> production of recycled fiber is cost competitive because the production cost is lower than Virgin Fiber's new fiber. Approximately (80%) of this type of paper comes from three sources, namely OCC Old Corrugated Containers, ONP Old Newspaper, and Office waste paper. (20%) of the used paper is removed from the ink which will be used as raw material for newsprint, tissue, white liner, or other types of white paper. Some of the raw materials for paper are used for paperboard, mineral cardboard. In the manufacture of paperboard, there is a type of Test Liner paper which is widely used as surface coating paper on cardboard.</em></strong></p> Muchammad Ilham Ali Nuruddin, Kuni Nadliroh Copyright (c) https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17523 Thu, 30 Jun 2022 00:00:00 +0700 Analisis Frekuensi Natural Rangka Main Landing Gear Pesawat UAV Menggunakan Ansys Workbench https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17580 <p><strong><em>The main landing gear is one of the important components in UAV aircraft. This paper aims to analyze the natural frequency of the main landing gear and determine its normal mode shape. This analysis is important so that no resonance causes damage to the main landing gear components. The main landing gear uses Aluminum 6061 material and the analysis is carried out using the finite element method with the help of Ansys Workbench software. The analysis showed that the natural main landing gear frequencies for mode 1 to mode 6 were 76.04 Hz, 85.07 Hz, 167.82 Hz, 201.92 Hz, 288.39 Hz, and 327.00 Hz, respectively. The maximum deformation of the main landing gear for mode 1 to mode 6 is 33.73 mm, 35.35 mm, 48.16 mm, 44.62 mm, 38.14 mm, and 41.51 mm, respectively.</em></strong></p> Lasinta Ari Nendra Wibawa Copyright (c) 2022 Lasinta Ari Nendra Wibawa https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17580 Thu, 30 Jun 2022 00:00:00 +0700 Rancang Bangun Rangka Mesin Pencetak Pelet Kapasitas 40 Kg/ Jam https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17721 <p><strong><em>Most</em></strong> <strong><em>of the residents in Mangunrejo Hamlet, Bangkok Village, Gurah District, Kediri Regency, East Java Province, cultivate catfish as one of their livelihoods. Catfish Pellet Printing Machine Capacity of 40 kg/hour can be a solution to reduce the cost of catfish cultivation so as to increase the profits obtained. In designing a catfish pellet molding machine with a capacity of 40 kg/hour, among others, planning the frame design and testing, calculating the frame, making the frame and components supported by the frame. Several processes in making the frame on a catfish pellet molding machine with a capacity of 40 kg/hour include material procurement, measurement, cutting, welding, drilling, cutting, finishing, and assembling components supported by the frame, as well as testing the frame. Based on the results of the discussion, it can be concluded that the type of frame material used is angled iron 6 meters 40 mm x 4 mm thick 3 mm with engine frame dimensions as follows: height 104 cm, width 104 cm, and length 119 cm. In addition, this frame is also able to support a variety of mixed materials that will be used to print pellets because because σ<sub>tensile frame</sub>&lt;σ<sub>max material </sub>that is 16,09 N/mm<sup>2</sup> &lt; 723,83 N/mm<sup>2</sup>.</em></strong></p> Ferdyansyah Rohmatulloh Ramadhan, Ah. sulhan Fauzi Copyright (c) 2022 Ferdyansyah Rohmatulloh Ramadhan; Ah Sulhan Fauzi https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17721 Thu, 30 Jun 2022 00:00:00 +0700 Analisis Efisiensi Kerja Kompressor Pada Mesin Refrigerasi di PT. XYZ https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17741 <p><strong><em>Refrigeration is one way to maintain the temperature of a material or a room at a lower level than the ambient temperature conditions around it by absorbing heat from the material or room. The refrigeration system that is widely used today for industrial purposes is to use a vapor compression cycle, where in this vapor compression cycle one of the components that has an important role is the compressor. Over time, the performance of the compressor will decrease, so it will affect the heat absorption process of the material to be cooled. With the reduced ability of the heat absorption process, it will reduce the efficiency level of the compressor. Based on the results of the efficiency analysis on the performance of the refrigeration system compressor at PT. XYZ, then the efficiency value is 73.98%.</em></strong></p> Ahmad Jibril, Pandu Adi Cakranegara, Raudya Setya Wismoko Putri, Cut Susan Octiva Copyright (c) 2022 Ahmad Jibril; Pandu Adi Cakranegara; Raudya Setya Wismoko Putri; Cut Susan Octiva https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17741 Thu, 30 Jun 2022 00:00:00 +0700 Pengembangan Material Maju Superkonduktor Mg-B dengan Penambahan Graphene Oxide melalui Proses Powder in Sealed Tube https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17894 <p><em>MgB2 is a high possible superconducting material that can be applied quite practically with the functionalization of Mg-B materials. Material development is carried out by adding carbon, namely Graphene Oxide (GO), which is a single atom layered material. The Powder in Sealed Tube (PIST) method is practically used to reduce oxidation. This study aims to analyze the effect of GO material doped with the PIST method made from MgB2 with a sintering temperature of 800℃ for 2 hours on its superconductivity, compound formation, and microstructure. The manufacturing process is carried out in a 1:2 ratio where 98% purity Mg is mixed with Boron, which is then added with 0, 0.3 and 3% wt GO doping, all ingredients are mixed stoichiometrically. The material that has been put in a tube and compacted sufficiently into SS316L which has been closed on one side to enter the powder, is then compacted with high pressure up to 1000 MPa. The material is sintered at a temperature of 800℃ for 2 hours which is then carried out by cooling in the furnace and taking bulk samples. The XRD results showed the formation of the dominant MgB2 phase and the formation of an impurity phase in the form of MgO and obtained a decent crystal size of 295 which was owned by the 3%wt GO PIST MgB2 sample. The SEM test shows the forms of formation (agglomeration) in each sample, with the presence of several axes. Cryogenic testing shows that with doping there is a movement of critical temperature to a lower direction where MgB2 0%wt GO has a Tc<sup>Onset</sup> value of 39.4 K and a Tc<sup>Zero</sup> of 38.7 K, while MgB2 3%wt GO has a Tc<sup>Onset</sup> value of 39.6 K and Tc<sup>Zero</sup> of 38 K.</em></p> Brillian Ardy Mahendra, Satrio Herbirowo, Iman Saefuloh, Murni Handayani Copyright (c) 2022 Brillian Ardy Mahendra; Satrio Herbirowo; Iman Saefuloh; Murni Handayani https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17894 Thu, 30 Jun 2022 00:00:00 +0700 Analisa Karakterisasi Baja Paduan As-Cast-Fe-Cr-Mn-Mo Dengan Komposisi Nikel Terhadap Sifat Mekanik Dan Struktur Mikro Hasil Uji Balistik https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17906 <p><em>Lateritic steel is a low-nickel steel with a nickel content of 1-4.5 percent. Steel with a high nickel percentage has better qualities like high strength, corrosion resistance, and weldability. This material is commonly used in crushers and grinding machines. This material can also be utilized as an armor material. A study was undertaken to investigate the ability of laterite steel to be employed as armor material by characteristic testing (impact test and hardness test) and microstructure (metallography) of laterite steel. ASTM standards must be followed in the preparation of all samples. The impact test was performed on 9 samples from 3 specimens, with each sample being placed on an anvil and pounded with a pendulum that the average values of samples A, B, and D were 11 J, 9 J, and 12 J, respectively. The fractures were granular, indicating that the material is extremely fragile. The hardness test was then performed using the Vickers method with a 5 Kgf load. The polished sample is placed immediately on a vise, and then a diamond-shaped indenter is attached; the hardness test value is determined by the size of the trace of the indenter, with the average values of samples A, B, and D being 292.63 HVN, 310.47 HVN, and 464.87 HVN, respectively. Microstructure measurements revealed that sample A formed ferrite perlite, sample B formed lower bainite, and sample D formed martensite phase.</em></p> Daryl Deskianto Harna Copyright (c) 2022 Daryl Deskianto Harna; Iman Saefuloh; Miftahul Jannah; Bintang Adjiantoro https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17906 Thu, 30 Jun 2022 00:00:00 +0700 Pengembangan Baja Paduan Tahan Peluru Melalui Proses Hot-Forging Terhadap Morfologi Dan Sifat Mekanik https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17947 <p><strong><em>Laterite steel is steel that has a nickel content of up to 2%. The nickel content can produce steel with superior properties such as: high strength, corrosion resistance, and good weldability properties. With the superior nature of laterite steel is needed in the main tool of the indonesian national tantara weapon system. To find out the performance of damage to bulletproof materials, then conducted research on this laterite steel as a tough armour material by conducting research in the form of mechanical properties testing (Hardness, and Impact) and microstructures (Metalography). Samples are prepared in accordance with ASTM standardization. Based on the results of the hardness test, the average values of F and T samples were 663.9 HVN and 170.7 HVN. Material F qualifies as a ballistic resistant material (armour) because the hardness obtained in accordance with the classification and can withstand bullet penetration well. Then the impact test obtained the average value of the F and T samples is 9 joules and 148 joules. For F samples, the type of fault is a granular fracture and a T sample of the type of fault is a tenacious fracture. As a result of metallographics, sample F has a corrected phase is upper bainite as a matrix and martensite is generally shaped like a fine needle. Then the T sample has a formed phase is dominated by ferrite with soft and tenacious properties. As well as perlite as a matrix with quite hard and strong properties.</em></strong></p> Ilham Nugrahatama Putra Copyright (c) 2022 Ilham Nugrahatama Putra, Iman Saefuloh, Bintang Adjiantoro, Miftahul Jannah https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17947 Thu, 30 Jun 2022 00:00:00 +0700 Efek Panjang Serat Terhadap Sifat Tarik Komposit Poliester Berpenguat Serat Buah Lontar Yang Diberi Perlakuan Alkali https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17948 <p>This study aims to observe the impact of the fiber lengths and NaOH treatment on the tensile properties of composite materials made from borassus fiber and polyester matrix. This study used fibers from borassus fruit, Wax Mirror Glass, Polyester and Alkali (NaOH). The NaOH treatment was carried out by soaking the fiber in a 15% NaOH solution for 2 hours. The length of the fiber in this study were short fiber (&lt;1cm) and long fiber (&gt;8 cm). The composition of the number of fibers and matrix in this study was calculated based on the volume fraction of the fiber and the volume fraction of the matrix. The test spesimens were made according to the tensile test standard ASTM D-3039. The results showed that short fiber reinforced composites treated with 15% NaOH for 2 hours had the highest tensile stress value with an average value of 5.896 MPa, while the lowest was found in composites with long fiber reinforcement without alkali treatment with an average value of 1.625 MPa. The results of the macro photo describe the shape of fiber pull out in the composite with long fiber reinforcement without treatment, while the short fiber reinforced composite with alkali treatment has a brittle fracture without fiber pull out.</p> Kristomus Boimau Copyright (c) 2022 Kristomus Boimau; Ardy Seran; Wenseslaus Bunganaen; Rima N. Selan https://creativecommons.org/licenses/by-sa/4.0 https://ojs.unpkediri.ac.id/index.php/JMN/article/view/17948 Thu, 30 Jun 2022 00:00:00 +0700