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All Journal Jurnal Teknik Mesin Machine : Jurnal Teknik Mesin Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Jurnal Teknik Mesin Indonesia Abdi Masya Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Jurnal Abdikarya : Jurnal Karya Pengabdian Dosen dan Mahasiswa
Pramudi, Ganjar
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MANUFAKTUR MESIN PEMIPIL JAGUNG UNTUK PENINGKATAN PRODUKTIFITAS KELOMPOK PETANI SUBER REJEKI II KECAMATAN JUMANTONO KABUPATEN KARANGANYAR Akbar, Hammar Ilham; Triyono, Teguh; Pramudi, Ganjar
Jurnal Abdikarya: Jurnal Karya Pengabdian Dosen Dan Mahasiswa Vol. 08 No. 01 Tahun 2025
Publisher : Lembaga Penelitian Dan Pengabdian Kepada Masyarakat Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/abdikarya.v8i01.11547

Abstract

Kelompok Usaha Tani Sumber Rejeki II berlokasi di Dk. Kleco RT 4 RW 3, Ds. Sambirejo, Kec. Jumantono, Kab. Karanganyar, Prov. Jawa Tengah. Fokus utama kelompok ini adalah pengembangan usaha pertanian, khususnya dalam produksi jagung. Pentingnya jagung sebagai komoditas pangan kedua setelah beras membuat kebutuhan jagung meningkat seiring pertambahan penduduk dan perkembangan industri pakan. Di Indonesia, produksi jagung pada tahun 2021 mencapai 23.042.764,84 ton, dengan dominasi wilayah Jawa Timur, Jawa Tengah, dan Jawa Barat. Namun, di Desa Sekembang, Jumantono, kelompok menghadapi permasalahan dalam proses pemipilan jagung. Petani jagung di daerah tersebut masih menggunakan alat sederhana, terutama pemipilan secara manual atau dengan tangan. Proses manual membutuhkan waktu yang relatif lama, menghasilkan jagung pipilan dalam jumlah yang terbatas, dan menyebabkan kelelahan dan keluhan tangan yang sakit. Meskipun ada mesin pemipil jagung mekanis, petani di daerah tersebut kesulitan mengaksesnya karena harga yang mahal dan kapasitas yang umumnya lebih besar dari yang diperlukan oleh petani kecil. Untuk mengatasi permasalahan tersebut, kelompok mengidentifikasi kebutuhan akan mesin pemipil jagung dengan kapasitas kecil atau rendah yang dapat membantu petani meningkatkan hasil pipilan jagung dengan biaya yang lebih terjangkau. Mesin tersebut diharapkan dapat menggantikan metode manual yang tidak efektif. Dalam upaya mengatasi permasalahan tersebut, kelompok menciptakan dan merancang mesin pemipil jagung semi-mekanis. Mesin ini menggunakan teknologi sederhana dan dapat membantu petani dalam penanganan pascapanen jagung.
Mesin Pencacah (Crusher) Daur Ulang Limbah Rosok Plastik untuk Revitalisasi Pengelolaan Limbah Plastik di Kabupaten Magelang Pramudi, Ganjar; Akbar, Hammar Ilham; Rovianto, Eki
JDISTIRA - Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Vol. 4 No. 1 (2024)
Publisher : Yayasan Rahmatan Fidunya Wal Akhirah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58794/jdt.v4i1.854

Abstract

Proyek pengabdian ini telah menunjukkan bahwa mesin pencacah plastik memberikan solusi efektif dalam pengelolaan sampah plastik di kalangan pengumpul barang bekas di Kabupaten Magelang. Mesin-mesin ini memungkinkan pengolahan sampah plastik menjadi bubuk plastik, yang dapat dijual oleh pengumpul barang bekas. Pendapatan yang diperoleh dari penjualan bubuk plastik berfungsi sebagai sumber pendapatan tambahan, sehingga berkontribusi terhadap peningkatan ekonomi para pengumpul barang bekas. Selain itu, penggunaan mesin penghancur plastik juga memberikan dampak positif terhadap lingkungan dengan mengurangi penumpukan sampah plastik yang biasanya menimbulkan polusi. Mesin-mesin ini juga meningkatkan efisiensi operasional, meningkatkan kapasitas pemrosesan dan mengurangi waktu yang dibutuhkan untuk menangani sampah plastik. Pemberdayaan teknologi ini mendorong pengembangan keterampilan dan pengetahuan di kalangan pengumpul barang bekas, sehingga memungkinkan mereka untuk memperluas bisnis daur ulang mereka. Selain itu, keterlibatan masyarakat dalam pengelolaan sampah plastik meningkatkan kesadaran akan pentingnya daur ulang dan pengurangan sampah. Keberhasilan program ini, didukung oleh berbagai pemangku kepentingan, menjamin keberlanjutannya dan menjadi model bagi daerah lain. Secara keseluruhan, mesin pencacah plastik tidak hanya memberikan solusi pengelolaan sampah yang efektif di Kabupaten Magelang namun juga memberikan manfaat ekonomi, lingkungan, dan sosial yang signifikan, sehingga menyoroti pentingnya inovasi dan pengembangan berkelanjutan dalam praktik pengelolaan sampah.
Rancang Bangun Sistem Transmisi Belt dan Pulley Pada Mesin Crusher Plastik High Density Polyethylene (HDPE) Pramudi, Ganjar; Wibowo, Alif Sebrio
Jurnal Teknik Mesin Indonesia Vol. 20 No. 1 (2025): Vol. 20 No. 1 (2025): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v20i1.795

Abstract

High-Density Polyethylene (HDPE) plastic is one of the most widely used types of plastic, commonly found in products such as bottles, containers, and pipes. However, if not managed properly, HDPE plastic waste poses a significant environmental challenge. An HDPE plastic crusher machine is a tool designed to shred HDPE plastic waste into fine powder, facilitating recycling and its use in composite materials. The objective of this research is to design and construct an efficient and effective HDPE plastic crusher machine. The HDPE plastic crusher machine features a rotary knife and a robust steel frame. The rotary blade is crafted from a hard, sharp material, while the steel frame provides support for the machine's body and drive motor. The machine is powered by a 3 HP electric motor operating at a speed of 1400 RPM. Power transmission is achieved through a belt and pulley system. The machine functions by transferring power from the main 3 HP electric motor to the shaft of the crusher knife. Direct testing of the HDPE plastic crusher machine was conducted using shredded HDPE plastic. The testing process was divided into two types: one without HDPE plastic and one with HDPE plastic. The results indicated that the machine produced 100 grams of fine powder in 30 minutes. The belt and pulley transmission system demonstrated a maximum tension of 216.5 N and a working tension of 176.4 N.
Rancang Bangun Sistem Transmisi Poros Pisau Penghancur Pada Mesin Crusher Plastik High Density Polyethylene (HDPE) Pramudi, Ganjar; Nur Rohman, Farhan
Jurnal Teknik Mesin Indonesia Vol. 20 No. 1 (2025): Vol. 20 No. 1 (2025): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v20i1.875

Abstract

The amount of plastic waste continues to rise alongside the increasing use of plastic packaging products. To mitigate the plastic problem in Indonesia, one approach is to recycle HDPE plastic waste into powder that can be utilized for composite materials. The initial step in producing powder from HDPE plastic waste involves shredding the HDPE plastic into small flakes. These plastic flakes are then ground into fine powder. The HDPE plastic crusher machine is powered by a 3 HP electric motor and operates at a rotational speed of 1400 rpm. The design of the blades on this machine features sharp and wide edges, with a total of eight blades. Additionally, the machine body is designed with a wider shape to optimize the plastic crushing process. The transmission system used to transfer rotation consists of a pulley, V-belt, and shaft. Proper planning of the shaft is essential to determine the appropriate diameter for the HDPE plastic crusher machine. Based on the planning results, the shaft diameter selected is 25 mm, with a minimum required diameter of 16.24 mm. The final rotational speed of the crusher blade shaft is 2800 rpm, with a torque of 13,410 N·mm applied to the shaft.
Thermal and Flame Retardant Performance of Glass Fiber-Reinforced UPR Composites Modified with Boric Acid and Sodium Silicate Kristiawan, Ruben Bayu; Pramudi, Ganjar; Roni, Komar
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 14, No 2 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v14i2.33580

Abstract

This study investigates the effect of sodium silicate (Na₂SiO₃) and boric acid (BA) as flame-retardant additives in unsaturated polyester resin (UPR) reinforced with E-glass fibres. The fire performance of the composites was evaluated based on varying additive concentrations by % volume fraction, using standardised testing methods in burning rate (BR) with ASTM D 635-22. Results indicate that Na₂SiO₃ contributes to fire resistance by forming a thermally stable, glass-like barrier, while BA proves more effective by interrupting combustion reactions and generating protective boron oxide residue. Notably, the combination of Na₂SiO₃ and BA produced a synergistic effect, resulting in a significant reduction in burning rate. Thermogravimetric analysis (TGA) further confirmed the enhanced thermal stability of the composite, particularly in the NB10 formulation with 2% Na₂SiO₃ and 8% BA, which demonstrated the slowest degradation at elevated temperatures. These findings suggest that optimising the ratio of Na₂SiO₃ and BA yields high-performance, fire-retardant composites suitable for applications demanding superior fire resistance and thermal durability, such as electric vehicle safety components.
PERANCANGAN SAMBUNGAN BAUT RANGKA VERTIKAL PADA MESIN CNC MILLING MINI Pramudi, Ganjar; Hafidz, Umar; Santoso, Alga Aji
Machine : Jurnal Teknik Mesin Vol 11 No 1 (2025): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v11i1.5736

Abstract

Printed Circuit Board (PCB) adalah sebuah medium berbentuk papan yang dilapisi tembaga yang berfungsi untuk menghubungkan dan menyalurkan listrik antar komponen elektronik. Pembuatan jalur PCB dengan kualitas bagus maka perlu penggunaan Mesin CNC Milling Mini agar memudahkan pembuatan jalur PCB yang teliti dan presisi. Mesin CNC Milling Mini merupakan pengembangan dari mesin milling konvensional, yang terdiri dari 3 sumbu axis yaitu X axis, Y axis, dan Z axis yang dapat digunakan untuk membuat jalur PCB. Mesin CNC Milling Mini berukuran 620 mm x 600 mm dan memiliki beberapa komponen antara lain frame, stepper motor, poros, leadscrew, bearing, spindle motor, chuck, endmill, kopling, kotak kontroler, bed. Pada sambungan mesin menjadi komponen penting dalam perancangan mesin yang perlu diperhatikan. Dengan adanya sambungan yang tepat, maka pada perakitan Mesin CNC Milling Mini dapat menjadi kesatuan yang utuh, kuat dan presisi dalam penggunaannya. Perancangan Mesin CNC Milling Mini memerlukan sambungan baut untuk menggabungkan komponen mesin. Sambungan baut berperan penting dalam penerus beban antara rangka vertikal dengan komponen mesin. Pada komponen mesin untuk dipasang di rangka vertikal menggunakan ukuran baut M5 diameter 5 mm dengan kekuatan baut sudah dikatakan aman karena gaya yang bekerja 5.145 N kurang dari beban tarik baut 10.104,3 N.
APPLICATION OF TECHNOLOGY IN ORGANIC FERTILIZER PROCESSING IN SAMBI VILLAGE, SRAGEN REGENCY Prasetyo, Ari; Akbar, Hammar Ilham; Rovianto, Eki; Pramudi, Ganjar; Harsito, Catur; Muslim, Riyadi; Adika, Dimas
Abdi Masya Vol 6 No 1
Publisher : Pusat Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52561/abdimasya.v6i1.444

Abstract

The livestock waste in Sambi village has not been utilized for organic fertilizer. In fact, the number of livestock farmers is increasing every year, which has an impact on increasing waste. The purpose of this activity is to provide training and practice in making solid organic fertilizer from livestock waste in Sambi Village, Sambirejo District, Sragen Regency. Organic fertilizer is a form of fertilizer that comes from organic materials, such as animal waste, rotting plant residues, and other natural sources. Making organic fertilizer has the advantage of increasing community income and optimal use of organic fertilizer can improve soil fertility due to excessive use of chemical fertilizers. The majority of Sambi villagers have livestock and also cultivate agricultural crops. Waste has not been utilized for solid organic fertilizer and is still completely dependent on chemical fertilizers that cause physical damage to the soil, besides being expensive and rare. This program provides a package of solid organic fertilizer processing technology so that farmer groups can produce independently. In achieving the success of the program, socialization, training and mentoring have been carried out periodically. The production of organic fertilizer is expected to increase soil fertility and can be sold to increase community income
Design and Build a Power System on a High-Density Polyethylene Plastic Crusher Machine Pramudi, Ganjar; Hakim, Ilham Azhar Raihan Rahmanul
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol. 15 No. 2 (2025): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.4mg0f156

Abstract

High Density Polyethylene (HDPE) plastic is one of the plastic materials commonly used for the manufacture of plastic packaging. HDPE plastic waste, which is increasing in number every year, can be used by recycling in a good way. One way to manage HDPE plastic waste is to recycle it into powder for composite materials. HDPE plastic crusher machine is used to chop HDPE plastic waste into small pieces such as powder, thus facilitating the recycling process for composite materials. So this HDPE plastic crusher or crusher machine was designed with a new blade design so that the shredding results can be maximized and use an electric motor with low power so that it can save production costs. The drive used is an electric motor with a power of 3 HP at a speed of 1420 rpm. With a cutting force of 99.3 N.mm2, it is able to produce a fine powder of 100 grams for 60 minutes. The test is divided into 2 types, namely testing without HDPE plastic and with HDPE plastic.
Co-Authors Adika, Dimas Akbar, Hammar Ilham Ari Prasetyo Hafidz, Umar Hakim, Ilham Azhar Raihan Rahmanul Harsito, Catur Komar Roni Kristiawan, Ruben Bayu Muslim, Riyadi Nur Rohman, Farhan Rovianto, Eki Santoso, Alga Aji Teguh Triyono Wibowo, Alif Sebrio