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All Journal Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Jurnal Rekayasa Material, Manufaktur & Energi Martabe : Jurnal Pengabdian Kepada Masyarakat AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Abdi Insani IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) IRA Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Teknik Mesin & Industri (JITMI)
Bobby Umroh
Universitas Medan Area
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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Alih Teknologi Pemanfaatan Pelepah Kelapa Sawit sebagai Media Tanam Jamur Tiram Putih (Pleurotus Ostreatus) pada Masyarakat Perkebunan Siti Mardiana; Ellen Lumisar Panggabean; Bobby Umroh
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 6, No 3 (2020): September
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.066 KB) | DOI: 10.22146/jpkm.49814

Abstract

Pelatihan penerapan teknologi pemanfaatan limbah pelepah kelapa sawit sebagai media tanam jamur tiram pada masyarakat Desa Sampali merupakan salah satu metode transfer/alih teknologi tepat guna yang diterapkan oleh Universitas Medan Area. Tujuan pengabdian masyarakat ini adalah membantu masyarakat untuk meningkatkan pendapatan, meningkatkan gizi, memperbaiki lingkungan dengan mengurangi limbah organik, dan memberikan kesempatan kerja kepada pemuda setempat. Metode yang digunakan adalah pelatihan dan pendampingan teknis pada kelompok masyarakat Sampali dengan transfer teknologi berupa pembuatan kumbung (rumah jamur), pencincangan pelepah kelapa sawit menjadi serbuk berukuran 10 mes, pembuatan baglog, dan pembuatan demplot budi daya jamur tiram dengan media serbuk pelepah sawit. Hasil dari program pelatihan ini adalah(a) pemanfaatan pelepah sawit yang awalnya limbah menjadi media tanam alternatif untuk tanaman jamur tiram dan (b) bertambahnya pengetahuan masyarakat perihal budi daya jamur menggunakan media selain serbuk kayu yang semakin sulit diperoleh. Pelatihan dan pendampingan ini diharapkan dapat meningkatkan gizi masyarakat dengan pemanfaatan limbah pelepah sawit sebagai media tanam jamur tiram dan meningkatkan perekonomian masyarakat.
PKM USAHA PENGOLAHAN KERIPIK SANJAI BALADO DALAM MENGHADAPI MASALAH PRODUKTIVITAS DI KECAMATAN MEDAN AMPLAS KOTA MEDAN PROVINSI SUMATERA UTARA Bobby Umroh; Darianto; Kamaluddin
AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Vol. 4 No. 1 (2020): Amaliah: Jurnal Pengabdian Kepada Masyarakat
Publisher : LP2M UMN AL WASHLIYAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32696/ajpkm.v4i1.380

Abstract

Usaha yang dilakukan oleh Bapak Mahdian adalah industri rumah tangga (Home Industry) yang berada di Jl. Panglima Denai Gg.Hasibuan No.10 Kecamatan Medan Amplas. Usaha ini memiliki potensi yang luar biasa karena produk ini berupa Keripik Sanjai Balado yang berasal dari ubi roti melalui proses pengolahan yang sederhana. Selain itu pangsa pasar produk ini sangat luas sebab pengusaha produksi mengalami kewalahan dalam memenuhi permintaan. Jenis usaha yang dilakukan adalah produksi pengolahan ubi kayu menjadi Keripik Sanjai Balado yang dapat digunakan sebagai oleh-oleh dari Kota Medan. Masalah yang dihadapi mitra adalah proses pengolahan masih menggunakan cara-cara tradisional, terutama pada proses pencampuran bumbu dengan keripik ubi, yaitu dengan cara memasukkan bahan ke dalam baskom dengan cara menggoyang-goyangkannya. Kapasitas produksi saat ini sebanyak ±100 kg/hari atau sama dengan 130 kg ubi kayu selama 8 jam kerja/hari. Oleh karena itu, diperlukan sebuah rancangan mesin pencampur keripik ubi dengan bumbu dan mesin penggiling bumbu dengan metode penerapan teknologi tepat guna yang mampu bekerja lebih cepat, efisien, dan higienis dengan indikator peningkatan kapasitas produksi di atas 150 kg/hari Keripik Sanjai Balado selama 8 jam kerja/hari agar masyarakat terbantu secara ekonomi. Dari pengabdian yang dilakukan diperoleh peningkatan produksi dalam waktu 5 jam sebesar 160 Kg/hari dengan peningkatan 200% dari sistem manual.
Analisis Tegangan Mekanik Pada Mesin Press Hidrolik Dengan Beban 20 Ton Sarjana, SS; Prawoto, Yogi; Umroh, Bobby; ., Rahmatullah; Idris, Muhammad
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.16551

Abstract

Hydraulic press machine is a tool used for work that requires a compressive action force. The stress distribution that occurs in this study will be determined in the development of a press machine under a state of pressing with a load of 20 tons. Researchers use Finite Element Analysis (FEA) to generate data on the stress circulation in the engine construction. The research objectives: (1) Calculate the hydraulic pressure strength in theory, (2) Calculate the mechanical stress in the hydraulic press construction manually using the ANSYS R15.0 software, (3) Calculate the strength of the hydraulic press construction manually and using the ANSYS R15 software. .0. In this review, FEA estimation is completed with the help of Ansys Workbench R15.0 programming. The information load comes from hydraulic pressure. The inspection strategy utilizes FEA with the type of underlying structural analysis. FEA simulation results stated, the maximum stress that occurs in the table is 98.646 MPa and the maximum deformation is 0.21613 mm. The results of Ansys analysis stated that the maximum stress that occurs on the table is 98.646 MPa and the maximum deformation is 0.21613 mm. Considering the Tresca hypothesis, it is found that the stresses and deformations that occur are below the standard for structural failure. So that the frame of the hydraulic press is safe for use in a load of 20 tons.
Implementasi Keselamatan dan Kesehatan Kerja (K3) Pada Aktivitas Fabrikasi (Pengelasan, Pemotongan, Penggerindaan) di Kota Medan ., Rahmatullah; Umroh, Bobby; Amiruddin, Arfis; Siregar, Ahmad Marabdi
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.11447

Abstract

Occupational safety and health (OSH) is basically in the interest of all parties and is a basic right for workers. A safe and comfortable working process is an asset that is maintained continuously for quality and timely production. Work accidents are something that is highly avoided, work accident control must be carried out with methods that are in accordance with the field and industrial conditions. The purpose of the discussion in this paper is, how to control OSH in the fabrication industry in a sustainable manner, how to create good OSH regulations and make the production process safe and comfortable, how to form a good and professional work attitude. Work accidents that occur are actually the end result of a rule and unsafe working conditions. 85% of the causes of accidents are human factors. The fabrication industry carries out several processes such as welding, cutting, final processing and other supporting processes in the workshop. Recommendations have been made and implemented to reduce and control work accidents. The application of OSH in accordance with the concept of occupational health and safety management, theoretically the industry will be able to reduce the number of work accidents even to zero accidents from work accidents.
Analisis Kualitas Produk Botol 30ml Dengan Parameter Temperatur Pada Mesin Injection Molding Model Blow Elapri, Bima Yoel; Ramdan, Dadan; Umroh, Bobby
Jurnal Ilmiah Teknik Mesin & Industri (JITMI) Vol 2, No 2 (2023): Jurnal Ilmiah Teknik Mesin & Industri (JITMI), November
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jitmi.v2i2.3424

Abstract

Injection molding is one method that is widely used because of the lower cost required. The resulting plastic product is inseparable from the problem of product defects. This research uses quantitative methods and data collection or field on the subject of research, after that analyzing each parameter. The results of this study the occurrence of several defects in the product, namely short molding product defects have the most defects, namely 3, while over mold, sink mark and weldmark or flow product defects are 2 and the least is the hole product defect, namely 1. The setting at temperature determines the quality, especially in terms of appearance, at a temperature of 190 0C gives a much better product quality compared to temperatures of 180 and 200 0C. Analyze the optimal screw speed of 8 Rpm so that the resulting product can become a desired bottle product. Analysis of product defects that occur are Sink Mark, Weldmark or flow mark, Shrinkage and Over Mold which occurs at temperatures of 180 - 200 0C. The defects that most often arise because the mold has uneven lines so that defects occur in bottle products.
Pembuatan Mesin Internal Mikser Bijih Plastik Kapasitas 50 g/h Purba, Jepriadi; Iswandi, Iswandi; Umroh, Bobby
Jurnal Ilmiah Teknik Mesin & Industri (JITMI) Vol 2, No 1 (2023): Jurnal Ilmiah Teknik Mesin & Industri (JITMI), May
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jitmi.v2i1.1952

Abstract

This research aims to test and validate the performance of the IMBP Machine that has been created, ensuring that the machine can operate effectively and perform its components' functions as expected. Additionally, the objectives of this study include achieving the desired processing results of 50 grams per hour of plastic seeds and systematically developing the process of manufacturing the IMBP Machine, starting from the construction of the iron frame, gear housing, end plate, barrel, hopper, cover, packing, knife shaft, blades, binding shaft, and finishing process. The research methodology employed encompasses field observation, literature review, testing and measurement methods, as well as analytical methods. Field observation is utilized to observe and gather data from machines operating in the field. Literature review is conducted to obtain information related to the theory and practices of the IMBP Machine. Testing and measurement methods are employed to evaluate machine performance and collect data regarding the achieved processing outcomes. Furthermore, the analytical method is used to compare the obtained data with the desired specifications, thus validating whether the machine has achieved the intended targets. The research findings demonstrate that this machine successfully produces the IMBP Machine according to the desired specifications. It is proven to function effectively in processing plastic and carbon materials. With the results of this research, it is expected that this machine can contribute positively to plastic waste processing and carbon waste reduction processes.
Rancang Bangun Cetakan Botol Ukuran 30 ml Model Blow Pada Mesin Injection Molding Siagian, Martua Sangap; Ramdan, Dadan; Umroh, Bobby
Jurnal Ilmiah Teknik Mesin & Industri (JITMI) Vol 2, No 1 (2023): Jurnal Ilmiah Teknik Mesin & Industri (JITMI), May
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jitmi.v2i1.2009

Abstract

At present, the need to use plastics and the advancement of manufacturing technology for the material itself drive people's demand for plastics, and the development of technology has further increased competition in all fields of industry. Therefore, the plastics industry needs to increase production in terms of quality and quantity. In this way, plastic can slowly replace iron and steel due to its good moldability and light weight. In this research, as a research method, we use quantitative methods by conducting surveys, data collection and field research related to the research theme. After the data is collected, the next step is the fabrication of the test equipment. From the mold fabrication results, the mold is in the shape of a 30 ml bottle with dimensions of 105 mm x 40 mm, inlet ø 6 mm, outlet 3 mm, and the mold is made of aluminum. This mold is called the 3 plate system and the mold consists of 3 main parts which are divided into 3 parts. Good and ideal molding results were obtained with HDPE (High Density Polyethylene) material with injection speed parameters of 8 rpm and temperature of 190°C.
Penerapan Reaktor Biogas Skala Rumah Tangga dari Kotoran Domba sebagai Solusi Energi di Umroh Farm Idris, Muhammad; Umroh, Bobby; Jufrizal, Jufrizal; Hermawan, Indra; Harahap, Uun Novalia
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 3 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v3i1.174

Abstract

This Community Service activity addresses sheep manure waste issues at Umroh Farm, Patumbak Village, Deli Serdang. Waste buildup causes odor and environmental pollution despite its potential as biogas material. The solution was implementing appropriate technology by constructing a household-scale biogas reactor. Activities included participatory training, equipment assembly, and field trials. The digester, with a ±200-liter capacity, was made from plastic drums and equipped with input-output, cleaning, and gas collection lines. The implementation produced an average of 0.015 m³ of biogas per hour, with fire ignition lasting 1–2 seconds. The program reduced livestock waste, improved farmers’ awareness and skills and supported clean energy and climate change mitigation goals. Its success shows that simple biogas technology can provide an integrated solution for environmental management and community empowerment.
PENDAMPINGAN PEMBUATAN MESIN PENGGILING PADI OLEH KELOMPOK TANI LEMBUR AYU FARM DI DESA SEI MENCIRIM KECAMATAN KUTALIMBARU KABUPATEN DELI SERDANG Salqaura, Siti Alhamra; Alfifto, Alfifto; Umroh, Bobby
Jurnal Abdi Insani Vol 11 No 4 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i4.1902

Abstract

Rice milling machines have a crucial role in the rice production process. Using rice milling machines can increase efficiency, productivity, and quality. This community service aims to increase knowledge related to the manufacture of rice milling machines to improve the productivity of community agricultural products. The method of community service is in the form of assistance in manufacturing rice milling machines with a total of 34 participants. The media used is a direct practice in the form of training and assistance. After the training and assistance activities, a post-test was conducted to measure the level of understanding of group members and the community. The results of this community service show that there is an increase in insight and understanding related to the manufacture of rice milling machines. Thus, it is hoped that the community will be able to operate the equipment and work sustainably, and be able to make rice milling machines in the future.
Perancangan Mesin Pencacah Polimer Komposit untuk Aplikasi Komponen Fuel Cell Maulana, M Rizky; Fauji S, Ahmad; Iswandi, Iswandi; Umroh, Bobby
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.285

Abstract

This study aims to design a composite polymer shredding machine with a capacity of 50 kg/h to enhance recycling efficiency. The machine is powered by a 3 HP electric motor, equipped with a 1:50 ratio reducer and 200 mm diameter blades. Technical analysis encompasses calculations of cutting force, torque, and throughput, supported by CAD/CAE modeling to validate the structural design. The results show a shredding capacity of 833.33 g/min, cutting force of 47.088 N, and torque of 9.4176 Nm. The machine features a compact, energy-efficient design and delivers consistent output. A UNP steel frame ensures structural stability against dynamic loads. With good efficiency and sustainability, this design is suitable for small to medium-scale industries involved in composite polymer material processing.
Co-Authors Abdul Rahmansyah Achmad Jusuf Zulfikar Achmad Jusuf zulfikar Ahmad Marabdi Siregar Alfifto Amiruddin, Arfis Amrinsyah Amrinsyah Amrinsyah, Amrinsyah Amru Siregar Amru Siregar Azwir Sofyan Budi Harto Dadan Ramdan Danis Nainggolan Darianto Darianto Darianto Darianto Darianto, Darianto dedi kurniadi Dedi Kurniadi Dewi Setia Tarigan, Eka Elapri, Bima Yoel Ellen Lumisar Panggabean Fadly A Kurniawan Fauji S, Ahmad Glusevic, Jean Harahap, Uun Novalia Harto, Budi INDRA HERMAWAN Iswandi Iswandi Iswandi Iswandi Jean Glusevic Jufrizal Jufrizal Kamaluddin Kurniawan, Fadly A Maulana, M Rizky Muhammad Idris Muhammad Idris Muhammad Yusuf Rahmansyah Siahaan Nainggolan, Danis Prawoto, Yogi Purba, Jepriadi Rahmansyah, Abdul Rahmatullah . Rinto Supardi Sipangkar Salqaura, Siti Alhamra Sarjana, SS Siagian, Martua Sangap Siahaan, Muhammad Yusuf Rahmansyah Sianturi, Danial Jack Marbis Sipangkar, Rinto Supardi Siti Mardiana Sofyan, Azwir Tumangger, Theo Fredrik Yopan Rahmad Aldori Yuni Syahputri zulfikar zulfikar zulfikar, Achmad Jusuf Zulfikar, Achmad Jusuf Zulfikar, Achmad Jusuf zulfikar, zulfikar