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Arya Mahendra Sakti
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Perancangan Unit Sistem Pemanas Mesin Mini Portabel Ekstruuder Bioplastik Wildan, Muhammad Wildan Satrio Bimo; Ganda, Andita; Sakti, Arya Mahendra; Nugroho, Aji; Ma’addin, Khusnul Khuluq
Jurnal Rekayasa Mesin Vol 10 No 02 (2025): JRM Agustus 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i02.71346

Abstract

Pemanfaatan limbah oli bekas sebagai bahan bakar alternatif menjadi solusi dalam mengatasi masalah pencemaran lingkungan serta ketergantungan pada bahan bakar fosil seperti LPG dan minyak tanah. Penelitian ini bertujuan untuk merancang bangun kompor portabel berbahan bakar oli bekas jenis mineral yang dilengkapi dengan generator termoelektrik dan kipas pendingin 12V, mengkonversi panas menjadi listrik skala kecil. Metode dalam penelitian ini yaitu research and development dengan tahapan studi literatur, perancangan desain, pemilihan material, perakitan alat, pengujian fungsi, serta analisis data. Pengujian dilakukan untuk mengevaluasi kinerja kompor dalam hal waktu perebusan air 1 liter, stabilitas suhu pembakaran, serta kemampuan konversi panas menjadi listrik menggunakan 10 modul Peltier dalam konfigurasi seri. Data yang diambil meliputi tegangan volt, arus Ampere, suhu dingin dan panas pada modul Peltier, serta kecepatan kipas blower RPM pada berbagai variasi kecepatan (3900, 5965, 6756, dan 7930 RPM). Hasil penelitian menunjukkan bahwa kompor mampu mendidihkan 1 liter air dalam waktu 4,09 menit pada kecepatan kipas tertinggi, menghasilkan tegangan maksimum sebesar 13,046volt dengan arus 0,360 mA. Desain kompor menggunakan rangka besi beton dan hollow 4x4, pipa 3D sebagai ruang bakar, serta pendinginan aktif menggunakan kipas 12V yang meningkatkan efisiensi termoelektrik. sistem termoelektrik dengan pendingin kipas pada kompor berbahan bakar oli bekas. Inovasi ini memberikan alternatif solusi teknologi terbarukan yang ramah lingkungan dan dapat digunakan di daerah terpencil tanpa akses listrik.
Rancang Bangun Mini Portable Ekstruder Produksi Bioplastik Dari Pati Singkong khuluq ma'addin, khusnul; Nugroho, Aji; Mahendra Sakti, Arya; Fitri Ganda, Andita Nataria
Jurnal Rekayasa Mesin Vol 10 No 02 (2025): JRM Agustus 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i02.71430

Abstract

Plastik merupakan bahan yang banyak digunakan dalam kehidupan sehari-hari, namunmemiliki dampak negatif terhadap lingkungan akibat limbah yang sulit terurai. Salah satu solusiuntuk mengatasi permasalahan ini adalah dengan mengembangkan bioplastik berbahan dasar patisingkong, yang lebih ramah lingkungan dan mudah terdegradasi. Namun, proses produksi bioplastikmasih menghadapi kendala, seperti biaya produksi tinggi dan kebutuhan alat yang kompleks. Olehkarena itu, penelitian ini bertujuan untuk merancang dan membangun mini portable ekstrudersebagai alat produksi bioplastik skala kecil yang lebih efisien, ekonomis, dan mudah dioperasikan.Metode penelitian menggunakan pendekatan Research and Development (R&D), dimulai dariperancangan, pembuatan, hingga pengujian alat. Mini ekstruder ini dirancang dengan motor DC ¼HP dan gearbox rasio 1:12,5, serta dilengkapi sistem pemanas menggunakan band heater. Prosesekstrusi dilakukan pada suhu 150°C dengan variasi kecepatan screw 50 rpm, 75 rpm, dan 100 rpm. Mini portable ekstruder ini berhasil memproduksi filamen bioplastik dari pati singkong, sertamemiliki potensi besar dalam mendukung produksi skala kecil dan pemanfaatan limbah organik,sebagai bahan baku ramah lingkungan.
Analisis Variasi Kecepatan Dan Waktu Pada mesin Poles Magnetic Portable Untuk Penghilangan Karat Pada Logam Wulandari, Cyndhi Kartika; Wulandari, Diah; Sakti, Arya Mahendra; Riandadari, Dyah
Jurnal Rekayasa Mesin Vol 10 No 02 (2025): JRM Agustus 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i02.71515

Abstract

Penelitian ini berfokus pada proses penghilangan karat pada material logam dengan memanfaatkan mesin poles magnetic portable sebagai alternatif pembersihan yang lebih efisien dibandingkan dengan metodepenggosokan manual. Korosi atau karat merupakan permasalahan umum yang terjadi akibat paparanlingkungan seperti oksigen dan air yang berdampak pada penurunan kekuatan performa logam terutama disektor industri seperti otomotif, konstruksi dan manufaktur dengan menggunakan metode manual dinilai kurang efektif khususnya pada permukaan logam yang memiliki bentuk kompleks atau sulit dijangkau. Sebagai solusidikembangkan metode pembersihan dengan menggunakan cairan scale removal berbasis sulfamic acid dancitcric acid yang dikombinasikan dengan penggunaan mesin poles magnetic portable. Penelitian ini mengkajipengaruh variasi kecepatan putaran mesin (1400 rpm, 1500 rpm, 1600 rpm) serta durasi pemolesan (2 menit, 4menit, 6 menit) terhadap penghilangan karat pada logam khususnya mur dan baut. Hasil pengujian menunjukkan bahwa proses perlakuan mampu menurunkan berat material sebesar 0,65% hingga 1,54% serta kekasaran permukaan hingga 93,55%, dengan hasil terbaik diperoleh pada kecepatan 1600 rpm selama 6 menit.Temuan ini menunjukkan bahwa kombinasi jarum magnetic dan cairan scale removal dapat secara efektif menghilangkan karat tanpa merusak struktur material.
Analysis of Feeding, Drinking and Automatic Fecal Cleaning in Quail Cages Based on The Internet of Things Nur Rohman, Muhammad; Mahendra Sakti, Arya; Riandadari, Dyah; Nugroho, Aji
Indonesian Journal of Engineering and Technology (INAJET) Vol. 8 No. 1 (2025): September 2025
Publisher : Fakultas Teknik Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/inajet.v8n1.p10-18

Abstract

Analyze the effect of the slope of the feeding valve on the consumption of quail feed to determine the optimal angle of inclination, evaluate the effect of the variation in the diameter of the timing pulley on the conveyor belt on the rotation speed and cleaning time of the cage manure to find the most effective pulley size, and study the effect of liquid viscosity on the filling time of the tank using a water pump in order to optimize the liquid filling system in the farm. An applied experimental method with a quantitative approach was used to test the influence of free variables. The data collected including feed consumption, fecal cleaning time, and drinking water filling time were analyzed numerically to obtain valid and objective results. The results showed that increasing the tilt of the feeding valve from 20°, 25°, to 30° increased feed consumption from an average of 348 grams to 725 grams. The timing diameter of the pulley has an effect on the rotational speed and cleaning time, with the small pulley (25 mm) resulting in the fastest cleaning (0.42 minutes) and the largest pulley (50 mm) the slowest (1.38). In addition, the viscosity of the liquid affects the filling time of the 10-liter tank, where ordinary water is the fastest (3.52 minutes), water with 5 vitamins is slightly longer, and the mixture of water with molasses and salt is the slowest (4.31 minutes). 
ANALISIS PENGARUH VARIASI KECEPATAN PUTAR BALL MILL MACHINE TERHADAP KARAKTERISTIK UKURAN PARTIKEL MATERIAL KARBON Wildan Mufti Wirdana; Andita Nataria Fitri Ganda; Arya Mahendra Sakti; Dewi Puspitasari
RING ME Vol 5 No 2 (2025): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rme.v5i2.24307

Abstract

Ukuran partikel material karbon berperan penting dalam menentukan sifat fisik, kimia, serta potensi aplikatifnya, khususnya dalam industri baterai, metalurgi serbuk, dan teknologi elektroda. Namun, penelitian terkait optimasi parameter penggilingan terutama pengaruh kecepatan putar pada proses ball mill terhadap reduksi ukuran partikel karbon masih terbatas. Studi ini bertujuan untuk mengevaluasi pengaruh variasi kecepatan putar mesin ball mill terhadap karakteristik ukuran partikel karbon yang diperoleh. Metode yang digunakan adalah eksperimen laboratorium dengan memvariasikan kecepatan putar ball mill pada 60 rpm, 100 rpm, dan 140 rpm selama durasi penggilingan 4 jam. Hasil penggilingan dianalisis menggunakan Particle Size Analyzer (PSA) untuk mengetahui distribusi ukuran partikel. Hasil menunjukkan bahwa kecepatan putar berbanding terbalik terhadap ukuran partikel. Kecepatan 60 rpm menghasilkan ukuran partikel rata-rata terkecil sebesar 24,62 nm, sedangkan pada 100 rpm ukuran rata-rata terkecil sebesar 10,00 nm. Efisiensi penghalusan ini disebabkan oleh meningkatnya energi tumbukan yang dihasilkan bola penggiling pada kecepatan tinggi. Hasil penelitian menunjukkan bahwa kecepatan putar merupakan parameter krusial dalam proses penggilingan karbon untuk menghasilkan partikel yang halus dan seragam, serta berkontribusi pada pengembangan proses produksi material karbon skala laboratorium yang efisien dan terkontrol.
Optimization of Polylactic acid and Banana Peel Flour Composition to Enhance the Mechanical Properties and Biodegradability of Eco-Friendly Bioplastics Abdulloh, Isa Yuanata; Andita Nataria Fitri Ganda; Dewi Puspitasari; Arya Mahendra Sakti
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 10 No 2 (2025): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v10i2.1789

Abstract

This study investigates the development of environmentally friendly bioplastics made from polylactic acid (PLA) reinforced with banana peel flour. Four filler concentrations (0%, 10%, 20%, and 30% wt) were fabricated using injection molding and evaluated through tensile testing (ASTM D638), FTIR spectroscopy, and soil burial biodegradation. Pure PLA showed the highest tensile strength (26.23 MPa) but had the lowest elongation (6.33%) and biodegradation rate (12.8%). Adding 10-20 wt% filler increased stiffness, with the elastic modulus rising from 21.24 MPa to 38.12-26.63 MPa, while maintaining moderate flexibility. The 30 wt% composite demonstrated the most balanced performance, achieving 67.24 MPa tensile strength, 40.12 MPa modulus, 11.49% elongation, and the highest mass loss (20.2%). FTIR results showed a C=O shift from 1743.44 to 1720.46 cm⁻¹ and broad O–H bands, confirming hydrogen bonding and improved interfacial adhesion. Overall, banana peel flour is a promising sustainable filler for PLA-based bioplastics.
Rancang Bangun Alat Sentrifugal Semi-otomatis Kapasitas 1 kg Rochaman, Nur; Sakti, Arya Mahendra; Wulandari, Diah; Riandadari, Dyah
Jurnal Rekayasa Mesin Vol 10 No 03 (2025): JRM Desember 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i03.73588

Abstract

This research aims to design and assemble a semi-automatic centrifuge with a capacity of 1 kg that functions to separate liquid and particles in soy milk by utilizing centrifugal force. The need for this tool arises because commercial centrifuges are expensive, have limited capacity, and are less suitable for learning activities in educational laboratories and small-scale industries. The research method applies a Research and Development (R&D) approach that includes literature review, component design, assembly, functional testing, and evaluation of results. This tool is made using a 0.5 HP AC motor equipped with a speed controller via a dimmer and a pulley and V-belt-based transmission system. Tests were carried out at three variations of engine speed (700, 900, and 1100 rpm) and operating duration (15, 20, and 25 minutes) using soy milk samples. The test results show that the tool can run stably and successfully separate liquid from soy milk particles, as indicated by the formation of separate clear and creamy liquid layers. This research provides a contribution in the form of a prototype centrifuge that is economical, has a larger capacity, and is easy to use, so it has the potential to be a practical tool in educational laboratories and technology that is suitable for small-scale industries.
Analisis Biaya Produksi Mesin Ball Mill Skala Laboratorium Alfie, Fahmi Putra; Fitri Ganda, Andita Nataria; Sakti, Arya Mahendra
Jurnal Rekayasa Mesin Vol 10 No 03 (2025): JRM Desember 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i03.73706

Abstract

The ball mill is one of the essential machines used to reduce material size to the micro and nano scale. At the laboratory level, this machine is highly beneficial for research and technology development, yet its production cost often becomes a challenge. This study aims to analyze the production cost of a laboratory-scale ball mill in detail as a reference for more efficient planning. The research method applied an experimental approach by directly manufacturing one unit of the ball mill, starting from design planning, material procurement, fabrication process, up to cost calculation. All data covering material requirements, labor costs, and process expenses were calculated based on manufacturing standards. The results showed that the total production cost of the laboratory-scale ball mill was IDR 3,807,491, consisting of material costs of IDR 3,094,600, process costs of IDR 512,891, and planning costs of IDR 200,000. With a profit margin of 35%, the recommended selling price was IDR 5,140,112 per unit. This study emphasizes the importance of production cost analysis as a basis for budget control, price determination, and machine development strategies at both laboratory and small-scale industrial levels.
Identifikasi Masalah Air intake Dan Exhaust Serta Uji Dynotest Engine C15 Caterpillar Pada PT Trakindo Utama Surabaya Afero Pranesti, Dennova; Puspitasari, Dewi; Yasa Utama, Firman; Mahendra Sakti, Arya
Jurnal Rekayasa Mesin Vol 10 No 03 (2025): JRM Desember 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i03.74025

Abstract

This study aims to identify problems in the air intake and exhaust systems and to evaluate the performance of a Caterpillar C15 diesel engine through engine dynamometer testing at PT Trakindo Utama Surabaya. The method involved technical observation, dynamometer testing under various load conditions, and analysis of engine performance parameters, including power, torque, engine speed, oil pressure, fuel pressure, and boost pressure. The test results indicate that increasing load leads to proportional increases in power, torque, and boost pressure, while engine speed decreases at high loads without indicating abnormalities in the lubrication and fuel supply systems. Problem identification reveals that performance degradation is mainly associated with the valve mechanism and combustion instability, as indicated by improper valve lash and excessive white smoke from the exhaust system. The application of step-by-step troubleshooting procedures in accordance with manufacturer specifications proved effective in determining appropriate corrective actions and restoring engine performance to optimal conditions. This study provides a solid technical basis for implementing preventive and corrective maintenance strategies for Caterpillar C15 engines in heavy-duty industrial applications.
A Pengujian Vibrasi Pada Pompa Sentrifugal Sebagai Langkah Preventif Untuk Menjaga Stabilitas Kinerja Pompa DWI LESMANA, DIO; NAHRUDIN IBAD, MUHAMAD; MAHENDRA SAKTI, ARYA
Jurnal Rekayasa Mesin Vol 11 No 01 (2026): JRM April 2026 (In Press)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v11i01.74335

Abstract

Centrifugal pumps are essential equipment in industrial systems that function to continuously transfer fluids. The reliability and stability of pump performance are strongly influenced by mechanical conditions during operation, particularly in rotating components such as bearings. Mechanical disturbances in pumps are often not visually detectable at an early stage; therefore, an effective condition monitoring method is required. This study aimed to evaluate the performance condition of a centrifugal pump through vibration testing as a preventive maintenance approach. The method used was vibration measurement employing a VibXpert 2 device with vibration velocity parameters based on Root Mean Square (RMS) values. Measurements were conducted at the pump bearings in three directions: vertical, horizontal, and axial. The test results showed vibration values of 0.360 mm/s in the vertical direction, 0.815 mm/s in the horizontal direction, and 0.518 mm/s in the axial direction. All measured vibration values were below the threshold limits specified in the ISO 10816-3 standard for group 2 machines with rigid foundations. Based on these results, it was concluded that the centrifugal pump condition remained within a safe category or new machine condition. Vibration testing was proven to be an effective condition monitoring method to maintain performance stability and prevent early failure in centrifugal pumps.
Co-Authors Abdulloh, Isa Yuanata ADI PRANATA, ANGGA ADITAMA, RESKY Afdhol, Muhammad Zikri Afero Pranesti, Dennova Afghan, Fayyadh Buddy Al Afifah, Hidayanti Nuzulatul Aji Nugroho Al Falaq, Mochammad Rama Alam, Ilham Rofiqul Alfadilla, Muhammad Fajar Alfarizi, Edgar Hafizh Alfie, Fahmi Putra Alwi, Zyanata Hasna Andita Nataria Fitri Ganda Andrew Sabbathinus Putra Subagio, Andrew Aprilianto, Mochammad Ismail Bagus Ardiansyah, Daniar Anggit Arifianti, Lailatus Sa'diyah Yuniar ARMAN HIDAYAT, DENDI Arruafy, Mohammad Ghithrof Asmara, Anggurit Aji Bayu Asyhar, Achmad Hanif AZIZ MASHURI, ABDUL BAGUS PERMANA, AFIF Cahyo Nugroho, Cahyo Casillas, Muhammad Kanz DANANG PRIAMBODO, JAROT Danar Pratama, Sindhi Darmawan, Indra DERI SUBAYU, RHOMDAN Dewi Puspitasari Diah Wulandari DIDIN NURDIANSYAH, AHMAD Dimas Aryaputra DWI LESMANA, DIO DWI SUHARSONO, NASWAN Dyah Riandadari Eko Saputra, Aditiya Wahyu FAHMY SATRIADI WASKITO, YOGA Fajar, Rafianto Takbiral FANDI ZAMRUDDIN, MOCHAMMAD Farizi, Aziizun Faiq Al Fatahillah, Idham Rizki Yusma Ferly Isnomo Abdi Fikri, Zainur Rijalul Firman Yasa Utama Firmansyah, Rian FIRSTA MARSYAH, ANGGI Fitri Ganda, Andita Nataria Ganda, Andita Ganda, Andita Nataria Fitri HAIKAL AMIN, FIKRI Hermawan, Dedy Andy Hidayat, Achmad Fachrus Hidayaturrahman, Hidayaturrahman Ibisono, Gigih Chandra Ilham, Muhammad Nur Ilhamsyah, Tegar Bayu INDRA NASUTION, DONNI ISWANTO, SYAHIDI Jalakusuma, Kevin Firdaus KHABIBULLAH, MUHAMMAD khuluq ma'addin, khusnul Kurnia Sandy, Muhammad Khoir Kurniawan, Prasetyo Tri Laksono, Alif Rahman Laksono, Teguh Setiawan Aldi Lanka, Linggar Anggita Cucu Manggalasari, Lena Citra Marwinsyah, Rizky Marzad, Deftana Aqsya maulana, Faiz sahrullah Ma’addin, Khusnul Khuluq Mujakki, Muhammad Akbar Murod, Moh Iqbal NAHRUDIN IBAD, MUHAMAD Nosuvian, Joko Laksono NOVEMIA HANY, FIRSTY Nur Assidiqin, Muhammad Hafizzin Nur Rohman, Muhammad Nurul Ainu Sofi PRADIPTA BUANA, HABIB Priyambada, Sashatta Daniela Rachmattan, Ryan Ramadhan, Aldhi Fahrezy Ramadhan, Maulana Trisnanda Ramadhan, Yanuar Makhsinardi Ridho, Mukhlis Yazid Rizky Ramadhani, Muhammad Rizqullah, Ahmad Fakih Muhaimin Rochaman, Nur ROHMAN FAIZOL, ABDUL SAKIN NUR HAZNA, GALUH Saputra, Prihatama Wahyu SETYA PRAYOGO, ARNES Sofi, Nurul Ainu Solichudin, Fiqih Nur Sugiarto, Fikri Ariyadhana Sulistyorini, Elisa Tri agung Trimariyono, Dimas Tsamroh, Dewi ‘Izzatus URFIE, FERDANSYAH WAHYU NUGROHO, MUHAMMAD WARJU Widoretno, Yustin Setiya Wildan Mufti Wirdana Wildan, Muhammad Wildan Satrio Bimo Wulandari, Cyndhi Kartika YOGA ARGE PUTRA, TRI Yolarinda, Dhiko Yulianto, Angki Narda