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Construction and Performance Testing of Young Coconut Waste Shredding Machines Sundari, Ellys Mei; Suhendra, Suhendra; Anjiu, Leo Dedy; Windari, Sri
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4545

The problem of coconut husks and shells that are not utilized was that they are usually discarded as waste, so further processing was needed to overcome this. This study aims to manufacture and test the performance of a young coconut waste shredder. The research methods include machine construction, performance testing, and analysis of test results. The independent variables tested were rotational speed and number of test material cuts. The rotational speed was varied to 1,400 rpm, 1,750 rpm, and 2,333 rpm, while the number of cuts was varied to 4, 6, and 8 cuts. The data obtained were analyzed using a completely randomized design with an F-test. The shredder machine was constructed using a 1 HP electric motor drive, a V-belt transmission system, a shredding chamber diameter of 400 mm, a shredding chamber height of 150 mm, and is equipped with 4 shredding blades. The test results showed the highest chipping capacity of 77.56 kg/hour obtained at a speed of 1,750 rpm and 8 pieces, while the finest chipping results with a chipping length of 4.214 mm and a chipping width of 1.271 mm were obtained at a speed of 2,333 rpm and 8 pieces. Based on the analysis results, the rotation speed had a significant effect on the chopping capacity, while the number of cuts had no significant effect on the chopping capacity. Other analysis results showed that the rotation speed and number of cuts had a very significant effect on the chopping results.

STUDI KOMPARATIF KINERJA PENGERING KOPI SISTEM HYBRID BERDASARKAN KECEPATAN ALIRAN UDARA Sanubary, Iklas; Santoso, Pande Putu Agus; Anjiu, Leo Dedy; Ningsih, Irma Fahrizal Butsi; Elandi, Elandi
JURNAL CRANKSHAFT Vol. 8 No. 4 (2025): Jurnal Crankshaft Vol. 8 No. 4 (2025)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v8i4.16199

Penelitian ini bertujuan untuk mengetahui perbandingan kinerja pengering kopi sistem hybrid berdasarkan variasi kecepatan aliran udara. Pengering kopi hybrid memanfaatkan sumber pemanasÂ yang berasal dari sinar matahari dan heater yang dikontrol secara otomatis berbasis suhu menggunakan arduino. Perlakuan yang diberikan pada pada masing-masing pengering berupa variasi kecepatan aliran udara pada saluran inlet sebesar 2 m/s dan 4 m/s. Jenis kopi yang digunakan adalah kopi liberika dengan massa 1000 gram dan kadar air awal 45,996%. Proses pengeringan dilakukan selama 3 hari secara berturut-turut, mulai dari 09.00 WIB sampai 15.00 WIB, dengan pengambilan data setiap 30 menit. Data yang diukur berupa suhu dan kelembapan udara ruang pengering, serta massa dan kadar air biji kopi. Selama 3 hari proses pengeringan, pada pengering kopi hybrid dengan kecepatan aliran udara 4 m/s diperoleh suhu udara rata-rata sebesar 52,5 oC, kelembapan udara rata-rata sebesar 30,2%, pengurangan massa biji kopi dari 1000 gram menjadi 526 gram, dan penurunan kadar air biji kopi dari 45,996% menjadi 6,285%, sedangkanÂ pada pengering kopi hybrid dengan kecepatan aliran udara 2 m/s diperoleh suhu udara rata-rata sebesar 47,8 oC, kelembapan udara rata-rata sebesar 42,8%, pengurangan massa biji kopi dari 1000 gram menjadi 530 gram, dan penurunan kadar air biji kopi dari 45,996% menjadi 7,072%. Hasil penelitian menunjukkan bahwa variasi kecepatan aliran udara berpengaruh terhadap peningkatan suhu dan penurunan kelembapan udara ruang pengering, serta pengurangan massa dan penurunan kadar air biji kopi. Oleh karena itu, kinerja pengering kopi hybrid dengan kecepatan aliran udara 4 m/s lebih baik daripada pengering kopi hybrid dengan kecepatan aliran udara 2 m/s.

Modifikasi dan uji performansi mesin perontok lada dengan mekanisme perontok silinder berjaring Leo Dedy Anjiu; Suhendra Suhendra
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1566

Pepper is one of Indonesia's leading agricultural products. However, post-harvest handling of pepper, such as the threshing process, is still done traditionally. Efforts to overcome these problems done by developing a mechanical threshing process, including by designing and construction a mesh thresher cylinder type of pepper threshing. Test results show, this pepper thresher has a weakness, namely low threshing efficiency so that it needs to developed. Based on these conditions, research is needed that aims to develop, modify and done performance tests on the pepper thresher. The modification was made by making the contact angle between the thresher cylinder and the threshing net is 60o and resulted length of the threshing contact field of about 5.23 cm. The independent variable was the thresher cylinder rotational speed varied into 540, 471, 451 and 352 rpm. The dependent variables were capacity, threshing efficiency and percentage pepper of damage. The results of the analysis showed that the rotational speed of the threshing mechanism had a very significant effect on the capacity, threshing efficiency and the percentage pepper of damage. Increasing the speed of the thresher cylinder can increase the capacity and percentage of damaged pepper, but reduce threshing efficiency. The threshing efficiency increase of the pepper thresher before and after modification was from 35.8% to 95.93% on the approaching treatment.

Analisis panjang bidang kontak perontokan lada pada mesin perontok lada tipe silinder berjaring Leo Dedy Anjiu; Suhendra Suhendra; Ari Rianto
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2310

The threshing process is one of the problems because currently is still mostly done manually. The development of a mechanical pepper threshing system has been carried out by making a pepper threshing machine. Further development is carried out by analyzing the mechanism of pepper threshing. Based on these problems, a research was conducted to analyze the length of the threshing contact area on the pepper threshing mechanism. The independent variable of the research is the length of the threshing contact area. The dependent variables were threshing capacity, threshing efficiency and damage percentage of pepper. The length of the threshing contact area was varied namely 2, 4, 6 and 8 cm. The threshing mechanism rotational speed used is 360 rpm. The tensile strength of the spring on the threshing net is 0,22 kg/cm. The amount of pepper processed in 1 test is 0,4 kg. Based on the test result, the length of the threshing contact area is inversely proportional to the threshing capacity, and directly proportional to the treshing efficiency and the percentage of damage. The highest capacity and the smallest damage percentage were obtained at a contact area length of 2 cm, respectively 109,09 kg/hour and 10,85%. The highest threshing efficiency was obtained at a contact area length of 8 cm is 95,09%.

Construction and Performance Testing of Young Coconut Waste Shredding Machines Ellys Mei Sundari; Suhendra Suhendra; Leo Dedy Anjiu; Sri Windari
TURBO [Tulisan Riset Berbasis Online] Vol 14 No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4545

The problem of coconut husks and shells that are not utilized was that they are usually discarded as waste, so further processing was needed to overcome this. This study aims to manufacture and test the performance of a young coconut waste shredder. The research methods include machine construction, performance testing, and analysis of test results. The independent variables tested were rotational speed and number of test material cuts. The rotational speed was varied to 1,400 rpm, 1,750 rpm, and 2,333 rpm, while the number of cuts was varied to 4, 6, and 8 cuts. The data obtained were analyzed using a completely randomized design with an F-test. The shredder machine was constructed using a 1 HP electric motor drive, a V-belt transmission system, a shredding chamber diameter of 400 mm, a shredding chamber height of 150 mm, and is equipped with 4 shredding blades. The test results showed the highest chipping capacity of 77.56 kg/hour obtained at a speed of 1,750 rpm and 8 pieces, while the finest chipping results with a chipping length of 4.214 mm and a chipping width of 1.271 mm were obtained at a speed of 2,333 rpm and 8 pieces. Based on the analysis results, the rotation speed had a significant effect on the chopping capacity, while the number of cuts had no significant effect on the chopping capacity. Other analysis results showed that the rotation speed and number of cuts had a very significant effect on the chopping results.

Performance Testing of the Water Level Monitoring System at Internet of Things-Based Water Gates Feby Nopriandy; Suhendra Suhendra; Leo Dedy Anjiu; Budi Setiawan
TURBO [Tulisan Riset Berbasis Online] Vol 15 No 2 (2026): TURBO: Jurnal Program Studi Teknik Mesin (in Progress)
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v15i2.4784

The main problem in agricultural water management was the imbalance in water availability caused by suboptimal irrigation systems. Efforts have been made to develop a water level monitoring system that integrates ultrasonic sensors, Internet of Things (IoT) technology, and solar power to monitor irrigation automatically and in real time, especially in locations without electricity. Therefore, this study aimed to design, construction, and test the accuracy and error rates of an Internet of Things (IoT)-based water level monitoring system. The system was designed using ultrasonic sensors, the Blynk platform, an ESP32 microcontroller, and a 50 WP solar panel as the power source. Field testing was conducted on an open water channel with a depth of approximately 1.22 m. Data were collected every 5 cm within a water level range of 5–75 cm. The sensor was operated at distances ranging from 2.27 to 2.97 m. Observations were made by comparing the ultrasonic sensor’s measurements with manual measurements used as reference points. The test results show that this system has an average accuracy of 95.85%, with an average absolute measurement error of 4.15% and a calculated RMSE of 1.1412 cm. Keywords: internet of things, monitoring, ultrasonic sensor, water level

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

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.

Penerapan Teknologi Mesin Penghancur Kotoran Kambing untuk Kelompok Ternak Sekajau Mandiri di Dusun Solor Medan Sambas Feby Nopriandy; Suhendra Suhendra; Leo Dedy Anjiu
Mestaka: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 3 (2026): JUNI 2026
Publisher : Pakis Journal Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58184/mestaka.v5i3.1012

The partner in this community service activity was the Sekajau Mandiri Goat Farming Group, located in Solor Medan Hamlet, Sumber Harapan Village, Sambas Subdistrict. The main problem faced by the partner was the lack of technology to process goat manure into organic fertilizer. Until now, this livestock group has relied on traditional methods of managing livestock waste. Through this community service activity, efforts were made to solve the problem by applying technology in the form of a livestock manure shredder. The stages of this activity included the manufacture of the machine, testing its capacity, training in operation and maintenance, handover of the livestock manure shredder, and evaluation of the community service results. The livestock waste shredder provided to the partners has a capacity of 167.4 kg/hour. This activity has impacted the partners by increasing the production capacity of their manure fertilizer. The partners can accelerate the production cycle, reduce labor costs, and increase the volume of manure fertilizer available for sale.

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