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All Journal Journal of Applied Agricultural Science and Technology Agroteknika
Mohammad Riza Nurtam
Politeknik Pertanian Negeri Payakumbuh
Agriculture, Biological Sciences & Forestry Energy Engineering Environmental Science Mechanical Engineering

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Development of Coconut Dehusker Machine for Small Scale Industry Fithra Herdian; Sri Aulia Novita; Indra Laksmana; Mohammad Riza Nurtam; Rildiwan Rildiwan; Zulnadi Zulnadi
Jurnal Ilmu dan Teknologi Terapan Pertanian Vol 3 No 2 (2019): Journal of Applied Agricultural Science and Technology
Publisher : Politeknik Pertanian Negeri Payakumbuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32530/jaast.v3i2.125

Abstract

West Sumatra-Indonesia has potential to plant coconut due to the coastal location, sunshine level with average temperature 27oC. Coconut is a very productive plant. Coconut dehusking is one of the process that takes a lot of time and energy. Most of the farmer still using human manual labour with the help of tools made of iron or wooden crowbar that is mounted standing vertically with the blade facing upward about 80 cm from the ground. To increase the number of coconut products, it is designed the coconut dehusker machine. The main component of the machine were two rollers that rotate each other in opposite directions with each roller embedded iron-shaped nails that work to tear the coconut husk. Each roller has a different rotational speed. This machine has dimensions of 98 cm x 51 cm x 95 cm. Roller length is 50 cm and diameter 4 inches. The power source of the machine is a 2 HP electric motor, the speed was reduced by using 2 speeds reducer with the ratio of 1:20 and 1:30 respectively. From the performance test of this machine can dehusk 100 coconuts per hour. The operational basic cost of the machine equal to Rp 129.89 per coconut (about 1 cent) and Break Event Point is 12.387 coconut per year from the result of the performance test. From the economic analysis machine can be concluded that the use of this machine is better when compared to human labour which has limitation to duration and capacity.
Rancang Bangun Alat Pemipil Jagung Sederhana Nurmeji; Fendi Lisman; Yuni; Reza Syahriza; Mohammad Riza Nurtam; Musdar Effy Djinis; Irzal; Amrizal
Agroteknika Vol 2 No 1 (2019): Juni 2019
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32530/agtk.v2i1.30

Abstract

Proses pemipilan jagung di Kabupaten Limapuluh Kota masih dilakukan secara manual atau tradisional seperti dengan menggunakan tangan maupun alat bantuan sederhana seperti obeng. Pemipilan dengan cara manual akan membutuhkan banyak tenaga, waktu dan kapasitas produksi juga kecil. Jika pemipilan dilakukan dengan menggunakan mesin, maka biaya produksi akan lebih besar. Rancangan alat pemipil jagung sederhana ini dibuat untuk membantu petani jagung skala kecil. Analisa ekonomi teknik dari alat pemipil jagung ini diperoleh total biaya tetap Rp. 246.960/Tahun, total biaya tidak tetap Rp. 7.029,16/jam, biaya kerja Rp. 7.132/jam, biaya pokok Rp. 187,7/kg, dan break event point (BEP) 16.464 kg/tahun. Harga jual alat pemipil jagung ini adalah Rp. 980.000,- dengan laba 15%.
Rancang Bangun Alat Perontok Kacang Tanah (Arachis hypogaea L.) Semi Mekanis Tipe Vertikal Ajri Mai Ihsan; Zul Ariyandi; Sandi Wisaputra; Zulnadi Zulnadi; Amrizal Amrizal; Fithra Herdian; Mohammad Riza Nurtam; Fanny Yuliana Batubara; Angga Defrian
Agroteknika Vol 3 No 1 (2020): Juni 2020
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32530/agroteknika.v3i1.61

Abstract

Kacang tanah merupakan tanaman polong-polongan yang termasuk dalam golongan komoditi pangan terbesar di Indonesia. Umumnya petani masih menggunakan cara tradisional dalam perontokan kacang tanah sehingga mempunyai kapasitas kecil dan membutuhkan banyak tenaga kerja. Tujuan penelitian ini adalah melakukan rancang bangun alat perontok kacang tanah semi mekanis tipe vertikal yang mempunyai kapasitas besar. Metode penelitian dimulai dari identifikasi masalah dan penyempurnaan ide rancangangan alat perontok kacang tanah. Kemudian dilakukan pembuatan alat, uji fungsional dan uji kinerja. Terakhir dilakukan analisa ekonomi. Hasil uji kinerja alat perontok kacang tanah semi mekanis tipe vertikal diperoleh kapasitas alat 22 kg/jam, rendemen 41% persentase kacang tidak terontok 4.44%, presentase buah rusak 4.66% dan laju pengumpanan 58 kg/jam. Hasil analisa ekonomi teknik diperoleh break event point (BEP) pengoperasian alat input 284 kg/tahun dan break event point (BEP) pengoperasian alat output 408,60 kg/tahun.
Co-Authors Ajri Mai Ihsan Amrizal Amrizal Amrizal Defrian, Angga Fanny Yuliana Batubara Fendi Lisman Fithra Herdian Indra Laksmana Irzal Musdar Effy Djinis Nurmeji Reza Syahriza Rildiwan Rildiwan Sandi Wisaputra Sri Aulia Novita Yuni Zul Ariyandi Zulnadi Zulnadi