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All Journal Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Journal of Energy, Mechanical, Material and Manufacturing Engineering Jurnal Abdimas Mahakam Teknosains : Jurnal Sains,Teknologi dan Informatika Academia Open JTTM: Jurnal Terapan Teknik Mesin PELS (Procedia of Engineering and Life Science) National Multidisciplinary Sciences Prosiding Seminar Nasional Unimus J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
Anis Siti Nurrohkayati
Universitas Muhammadiyah Kalimantan Timur, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Analysis of the effect of the number of blades on the palm frond counter tool on the counting results Fajar David Aminuddin; Anis Siti Nurrohkayati; Agus Mujianto; Hery Tri Waloyo
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i1.740

Abstract

The growth of oil palm plantations in Indonesia, especially in Kalimantan and Sumatra, has resulted in an increase in palm oil waste from harvesting and tree care, both in the form of liquid waste and solid waste. As waste, palm fronds and leaves experience natural decomposition for about 4 months, which can cause a very large buildup and become a nest for pests to inhabit before decomposing. Designing an oil palm frond and leaf shredding machine involves designing special blades mounted on a rotating shaft, as well as a strong support structure to handle tough fiber materials, such as oil palm fronds and leaves, by producing flakes that can be used as organic fertilizer or ingredients. animal feed. The aim of this research is to create and test testing machines for chopping palm fronds and leaves showing that different blades have the ability to chop quite fine parts of the leaves with a chop length of between 20 mm and 50 mm, and the hardest part, palm fronds, can also be chopped finely. The amount of time spent is 1 minute and is able to chop 3 palm fronds. In 5 repetitions, an average time of 1 minute was obtained to chop the fronds. Based on the effective capacity of 5 repetitions on 19 blades, the average result was 1.45 kg/minute. Meanwhile, for effective capacity from 5 repetitions on 24 blades, the average result was 1.57 kg/minute and for effective capacity from 5 repetitions on 26 blades, the average result was 1.76 kg/minute
Dissemination of Organic Waste Crushing Machine Technology to Accelerate the Competitiveness of Zero Waste-Based Farming Businesses Nurrohkayati, Anis Siti; Arbansyah, Arbansyah; Anitra, Vera; Rasit, Abdul; Mahmud, Hilal
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 10, No 4 (2024): December
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpkm.100378

Abstract

Straw, a byproduct of rice harvesting, is a waste material from farming activities that can be repurposed as animal feed and organic fertilizer. Rice straw, when supplemented with probiotics, can enhance feed nutrition, and its high potassium content contributes to the fertility of agricultural soil. The purpose of this community service activity was to increase the knowledge of the Sri Warga farmer group about the benefits of rice straw and the application of organic waste shredding machine technology. The physical shredding of rice straw improves its quality as animal feed and accelerates the composting process for organic fertilizer. The results of the community service activity demonstrated the farmer group members’ enthusiasm for adopting organic waste shredding machine technology and utilizing rice straw. There was a notable increase in their understanding of the dual benefits of rice straw—as a nutritious animal feed and as a resource for enhancing soil quality through organic fertilizers. This activity significantly improved the knowledge and awareness of Sri Warga farmer group members about the potential uses of rice straw. A post-activity questionnaire revealed that 95% of the farmer group members understood the benefits and nutritional content of rice straw for use as organic fertilizer or animal feed, compared to only 70% before the activity. This highlights the success of the community service initiative in empowering the Sri Warga farmer group wi
Pengaruh Susunan Mata Pisau pada Mesin A dan B pada Performa Mesin Pencacah Sampah Organik Rasit.N, Abdul; Nurrohkayati, Anis Siti; Pranoto, Sigiet Haryo
J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Vol. 10 No. 1 (2025): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v10i1.2863

Abstract

Penelitian ini menganalisis pengaruh torsi terhadap RPM pada dinamo listrik 1 HP yang digunakan dalam mesin pencacah rumput gajah. Rumput gajah, dengan kadar air tinggi mencapai 66,6%, terbukti memberi beban signifikan terhadap kinerja dinamo. Pengujian dilakukan pada dua tipe mesin pencacah (Mesin A dan B) dengan beban ±1 kg per sesi. Hasil eksperimen menunjukkan bahwa penurunan RPM akibat beban pada Mesin A mencapai hingga 87% (dari 2890 menjadi 338,6 RPM), sementara Mesin B mengalami penurunan yang lebih terkontrol dengan fluktuasi stabil di bawah 80%. Penurunan RPM dikaitkan dengan tersumbatnya cacahan di mata pisau, serta ketidakseimbangan ukuran lubang filter. Grafik penurunan RPM memperkuat bahwa torsi meningkat seiring tingginya kadar air dan beban material. Perhitungan teknis pada sistem penggerak menunjukkan kecepatan keliling pulley mencapai 23,08 m/s dan gaya keliling v-belt sebesar 93,84 N. Data perawatan dan pengaturan beban juga disajikan sebagai rekomendasi berbasis bukti untuk menjaga efisiensi putaran dinamo. Temuan ini menjadi dasar untuk pengembangan mesin pencacah yang lebih tahan terhadap variasi material organik basah.
Analisa Pengaruh Variasi Gerakan Elektroda dengan Arus 75A pada Pengelasan Kampuh V terhadap Kekuatan Mekanis Baja Karbon ST37 Saputra, Eko Dandi; Nurrohkayati, Anis Siti
J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Vol. 10 No. 1 (2025): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v10i1.3042

Abstract

Penelitian ini bertujuan  guna menganalisis pengaruh variasi gerakan elektroda terhadap kekuatan mekanis baja karbon ST37 pada proses pengelasan kampuh V. Variasi gerakan elektroda yang digunakan adalah pola zig-zag dan melingkar dengan arus pengelasan sebesar 75A dan 85A. Pengujian dilakukan menggunakan uji tarik untuk mengevaluasi kekuatan tarik hasil pengelasan. Penelitian ini melibatkan proses preparasi material, pengelasan dengan metode SMAW (Shielded Metal Arc Welding), serta analisis hasil pengujian mekanis. Hasil spesifik menunjukkan bahwa pengelasan dengan polaritas DC+ dan arus 85A dengan gerakan elektroda zig-zag menghasilkan las dengan nilai kekuatan tarik sebesar 481,5 MPa.’Kesimpulan ini memberikan informasi penting dalam pemeliharaan parameter pengelasan untuk meningkatkan kualitas sambungan pada karbon baja ST37.
Co-Authors Afif Fauzan, M. Agus Mujianto Ahmad, Fauzi Akbar Ramadhan, Muhaimin Alfiansyah Alfiansyah Andi Nugroho Andi Nugroho Andi Nugroho Nurrohkayati Andi Nugroho, Andi Andre Safardiansyah, Muhammad Arbansyah, Arbansyah Bayu Susilo Bayu Susilo Binyamin Binyamin, Binyamin Budi Kurniawan, Krisna Dede Zulrahman Dede Zulrahman Eka Mahdi Ananta Fajar David Aminuddin Fajar David Aminuddin Falaqi Muhammad, Rijal Febriansyah, Kholiq Gilang Firmansyah, Muhammad Hery Tri Waloyo Hilal Mahmud, Hilal Imam Hanafi Jubaidi Khanif Setiyawan Kusumawati, Yulia Tri Latipah, Asslia Johar Mardiana Mardiana Muhammad Ali Rohmatulloh Muhammad Dimas Adjie Muhammad Khairul Muhammad Khairul Muhammad Khairul Muhammad Najeri Al Syahrin Mujianto, Agus Nalendro Mataram Nalendro Mataram Noer Aden Bahry Noer Aden Bahry Noer Aden Bahry Aden Nuruddin Wahtu Eko Putro Nuruddin Wahyu Eko Saputro Nuruddin Wahyu Eko Saputro Paula Mariana Kustiawan RASIT, ABDUL Rasit.N, Abdul Sabaruddin Syach Sabaruddin Syach Safarudin Ajeng, Muhammad Saputra, Eko Dandi Sigiet Haryo Pranoto Sudirman Sudirman Sudirman Syahrul Fathur Rahman Syam Ramadhani Saputra Tagfirul Azima Yoga Siswa, Muspidar Mulyadi Vera Anitra Wahyu Mutiara Ramadhan Wildan Wildan Wildan Zakki Anggara