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All Journal Turbo : Jurnal Program Studi Teknik Mesin J-Dinamika: Jurnal Pengabdian Kepada Masyarakat JURNAL CRANKSHAFT
Erwin Erwin
Politeknik Negeri Sambas
Control & Systems Engineering Education Energy Engineering Materials Science & Nanotechnology Mechanical Engineering

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Rancang bangun mesin pengupas tempurung kelapa Budi Setiawan; Erwin Erwin; Ari Rianto
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 1 (2021): Jurnal TURBO Juni 2021
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i1.1428

Abstract

The first work that must be done on coconuts after the coir stripping process is to strip the coconut shells. This is because the part of the coconut that is processed further is part of the coconut meat itself. Coconut shell is the hardest part of the coconut fruit. On this coconut shell, coconut meat is attached. Manually removing coconut meat will take a relatively long time, around 3-5 minutes for 1 coconut. Of course, with this time the capacity and production efficiency cannot be maximized. This research was conducted with the aim of designing and testing the capabilities of coconut shell peeling machines. This machine is operated by using 2 blades, namely a flat peeler blade as a barrier to the surface of the coconut shell and a toothed peeler to press the surface of the shell. The results of the functional testing of this machine obtained the best value at the rotational speed of the peeler teeth of 14 rpm with an average shelling time of 20.96 seconds per piece.Keywords: coconut, machine, coconut shells, shelling time.
MODEL SISTEM KERJASAMA DESTILASI LIMBAH CARVING DAN BAHAN LOW GRADE GAHARU MENJADI MINYAK GAHARU BERSTANDAR MARKET GUNA MENINGKATKAN NILAI TAMBAH Hidayat Asta; Erwin Erwin
J-Dinamika : Jurnal Pengabdian Masyarakat Vol 3 No 1 (2018): Juni
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/j-dinamika.v3i1.555

Abstract

Gaharu memiliki prospek kedepan yang sangat baik, hal ini dilihat melalui permintaan pasar yang terus meningkat dengan  harga jual yang tinggi. Bahan baku low grade memiliki harga yang rendah tetapi memiliki komponen kimia berharga tinggi sehingga sangat potensial untuk dilakukan diversifikasi produk melalui proses destilasi. Permasalahan ditingkat hunter gaharu, para hunter tidak mengambil gaharu low grade padahal dari satu pohon yang ditebang 60-80% adalah kriteria low grade, sedangkan 20-40% baru terdapat midle-high grade. Permasalahan ditingkat praktisi adalah hasil panen yang diperoleh rata-rata gaharu low grade, tetapi mereka tidak memahami dengan baik tentang teknologi destilasi. Permasalahan ditingkat pengusaha destilasi adalah stok bahan baku yang belum stabil karena belum mempunyai jalur pemasok bahan baku yang luas.  Dengan demikian, perlu dibangun pola kerjasama antara pengusaha home industri, hunter dan praktisi. Destilasi melalui metode vacum dengan tekanan 2-4 BAR, selama 16 jam menhasilkan rendemen minyak gaharu 0,03%-0,05% bahan low grade dan 0,07-0,10% limbah carving. Guna menghasilkan minyak gaharu murni dengan standart market timur tengah perlu proses purifikasi tahap I dan II serta aging treatment. 
REKAYASA DAN PENGUJIAN MESIN PEMBENTUK DAN PENGASAH PISAU PENCACAH LIMBAH PERTANIAN Irma Fahrizal; Leo Dedy Anjiu; Erwin Erwin; Suhendra Suhendra
JURNAL CRANKSHAFT Vol. 9 No. 2 (2026): Jurnal Crankshaft Vol. 9 No. 2 (2026)
Publisher : Badan Penerbit Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v9i2.17031

Abstract

Shredding machines play a crucial role in agricultural waste processing. A common issue encountered was shredding efficiency, particularly due to the poor quality of the shredding blades. Currently, the process of shaping and sharpening shredding blades was still carried out traditionally, resulting in inconsistent cutting angles. Poor-quality blades result in high energy consumption and low-quality shredded output. To address these issues, a study was conducted aimed at developing a machine capable of integrating the blade forming and sharpening processes into a single system. This research phase includes mechanical engineering, machine performance testing, and analysis of test data. The observed data collected include cutting torque and improvements in cutting performance. The test material used was potato tubers. Based on the engineering results, the machine measures 70 cm in length, 30 cm in width, and 70 cm in height, and was powered by a 2 HP electric motor, with the forming and sharpening blades operating at 1,400 rpm. Based on the test results, after the shredding blades were formed and sharpened, the cutting torque was reduced from 14.85 N·m to 7.36 N·m. Other observations showed that there was an average increase in cutting performance of 50.30% after the blade forming and sharpening process was performed.
Co-Authors Ari Rianto Budi Setiawan Hidayat Asta Irma Fahrizal Butsi Ningsih Leo Dedy Anjiu Suhendra