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All Journal Jurnal Rekayasa Mesin Eksergi: Jurnal Teknik Energi Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Medani : Jurnal Pengabdian Masyarakat AMMA : Jurnal Pengabdian Masyarakat Journal of Mechanical Engineering and Applied Technology Jurnal Polimesin
Khoryanton, Ampala
Politeknik Negeri Semarang
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Social Sciences

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Performance Analysis of Tray Dryer to Reduce the Drying Process Time of Cayenne Pepper khoryanton, Ampala; Yanuar, Padang; Saputro, Raynaldi; Supandi, Supandi
Eksergi Vol. 18 No. 3 (2022): SEPTEMBER 2022
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v18i3.3764

Abstract

Chili is a type of vegetable that is easily damaged and difficult to maintain in fresh form. The durability of fresh chilies if stored at low temperatures can last up to 14 days, but if stored at room temperature chilies only last about 2-4 days. Because of this, chili prices are always erratic, when chili prices are low, farmers will overcome losses by drying chilies using natural methods of sunlight. This method is considered less effective because it requires a large drying area and relatively long drying time. Therefore, it is necessary to manufacture and test chili drying ovens to speed up the drying process time and increase the durability of chilies. This research method focuses on the process of testing the performance of the drying oven. The test parameter used is using temperature of 70℃ with 3 variations of drying process time, namely 6 hours, 7 hours, and 8 hours to produce dry chili water content according to the standard, which is a maximum of 11%. The results of the chili drying oven research are the best drying time for 8 hours with a temperature of 70℃ which produces a water content of 9.33% cayenne pepper. In addition, the drying oven testing process resulted in a drying efficiency of 35.4%.
The Newton Model for Seaweed Drying: An Investigation of a Cabinet Dryer Using Biomass Energy Zulhan Widya Baskara; Apriandi, Nanang; Herlambang, Yusuf Dewantoro; Khoryanton, Ampala; Safarudin, Yanuar Mahfudz; Widya Baskara, Zulhan; Raharjanti, Rani
Eksergi Vol. 19 No. 01 (2023): JANUARY 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v19i01.4211

Abstract

This study investigates the viability of employing a cabinet-type dryer with a heat energy source derived from biomass combustion to dry Eucheuma sp. using Newton's model. In this investigation, seaweed was dried with air at a temperature of 55 °C. A reduction in water content of 8.1% was attained after six hours of drying. To make the data fit the suggested drying mathematical model, the data were examined and recorded. The model feasibility test shows that, with a coefficient of determination (R2) that is close to one and corrected at 0.9502, the Newton model can be used to predict the moisture content of dried seaweed after the drying process using a cabinet-type dryer with a source of heat energy from biomass combustion.
Optimization of soldering quality using poka-yoke and camera-based inspection to prevent incomplete production cycle: a case study in automotive stator assembly Khoryanton, Ampala; Yanuar, Padang; Aditya, Dwiky Septian; Mujiarto, Iman; Tristijanto, Hery; Alfauzi, Abdul Syukur; Sunarto, Sunarto; Sriyanto, Nanang Budi
Jurnal Polimesin Vol 23, No 4 (2025): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i4.7203

Abstract

This study was conducted at a manufacturing company located in Indonesia that produces Alternating Current Generator Starters (ACGS). In the ACGS production process, there is a solder inspection stage that was previously performed manually by operators. The main issue encountered is incomplete production cycles, a condition where a production cycle is not fully completed, but the product continues to the next stage, increasing the risk of undetected defective or rejected products. Research aims to design a camera check system that integrates the Poka-Yoke method to enhance accuracy and prevent errors caused by human factors based on continuous improvement through the Plan, Do, Check, Action (PDCA) cycle. This study compares two camera inspection programs: program model 1, with individual position calibration per solder point, and program model 2, with a shared calibration setup, to evaluate inspection effectiveness. The quantitative comparative testing results show a detection accuracy of up to 99.92% and an inspection result classification accuracy reached 99.73%, indicating a significant improvement in the reliability of the visual inspection system and quality assurance for soldering results in industry.
Effect of Speed and Turning Time Pulley on the Quantity and Quality of Output Multipurpose Chopper Machine Sari, Kartika; Sunardi, Sunardi; muwaffaq, Abiyyu Sayyid; Aminuddin, Jamrud; Khoryanton, Ampala; Warso, Warso; Budi Utomo, Agung Bambang
Jurnal Polimesin Vol 21, No 6 (2023): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i6.4098

Abstract

Variation of pulley rotational speed on the yield and cut of the multipurpose chopper aims to determine the optimum quality and quantity of chopping results. Testing using cassava and bananas. The diameter of the pulley used is 2 inches and the driven pulley is 6, 7, and 10 inches with a pulley speed of 467, 400, and 275 rpm. The result of bananas shows that the average chopping was 573, 864, and 864 grams, respectively with the spin pulley time being 46, 90, and 59 seconds. Meanwhile, for cassava, the results of chopping were 984, 995, and 823 grams, respectively with the spin pulley time being 23, 59, and 35 seconds, respectively. The optimum chopping quality for bananas used a pulley diameter of 10 inches and an optimum rotation time was 59 seconds. The optimum slicing quality for cassava uses a pulley diameter of 7 inches with an optimum rotation time was 59 seconds. The conclusion is that the diameter of the pulley affects the thickness of the sample, the time and speed of the pulley rotation, and the quality of the chopping results.
Quality And Productivity Analysis Of The Putty Dispenser In The Armature Balancing Process A Fauzi, Abdul Syukur; Balqis, Balqis; Putri, Farika Tono; Herlambang, Yusuf Dewantoro; Khoryanton, Ampala; Satito, Aryo; Nugroho, Wahyu Isti
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4226

Abstract

An electric motor is a device that converts electrical energy into mechanical energy. One of its  important components is the armature which functions as the center of movement. Armature is paired with another component of electric motor. In order to achieve a good quality of electric motor, armature quality must be controlled through a standard experiment called balancing test. An adhesive material called putty will be added into armature if the balancing test result is not up to standard. This study conducted in one of automotive industry in Indonesia. The company face a problem in balancing test process. Putty addition carried by factory workers only based on their estimation, resulting in the mass of putty used not in accordance with predetermined standards and also inconsistent, so that the balancing process takes a long time. This research offer a solution for the problem, i.e. putty dispenser to replace the manual putty-picking process with a standardized semi-automatic one. The research objective is to analyze the quality and productivity of the putty dispenser tool design in the armature balancing process. Through 100 armature samples consist of type A and type B, this study examines the quality of the putty mass provided using the most frequently occurring value and uses the independent T-test method to examine the hypothesis that there is a real difference in cycle time before and after the putty dispenser tool. Frame strength testing was also carried out using Solidworks software simulation with 632 N loading. The results of the research on the putty dispenser tool are that the frame used is proven safe, a decrease in cycle time with a percentage of 34.16%, an increase in productivity of 34.13%, also improved quality through the aspects of %NG reduction of 42.29%, and a standardized and constant putty mass of 100 mg for armature type A and 200 mg for armature type B.
ANALISIS PENGARUH KETEBALAN IRISAN TERHADAP KUALITAS IRISAN DAN EFISIENSI WAKTU PENGIRISAN PADA MESIN PENGIRIS TEMPE Nouvaldy, Raditya Eka; Khoryanton, Ampala; Abidin , Zainal
Journal of Mechanical Engineering and Applied Technology Vol. 3 No. 3 (2025): VOLUME 3 ISSUE 3 YEAR 2025 (NOVEMBER 2025)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jmeat.v3i3.7206

Abstract

The tempe processing industry plays a strategic role in food security and the local economy, especially within small and medium enterprises. However, productivity challenges remain, particularly in the slicing process, which impacts the quality and efficiency of production. This study investigates the effect of tempe slice thickness variation (2 mm, 3 mm, and 4 mm) on slice quality (categorized as intact and damaged) and slicing time using a specific performance cutting machine. It addresses the research gap where previous studies have not optimized the relationship between slice thickness and the drive motor performance of tempe cutting machines. The objective is to analyze the influence of slice thickness on quality, time efficiency, and motor performance. An experimental method was employed, varying slice thickness and measuring slice quality and cutting time using quantitative data analyzed descriptively and comparatively. Results showed a significant impact of slice thickness on both quality and time efficiency; 4 mm slices yielded the best quality with the highest intact slice percentage, whereas 2 mm slices resulted in the shortest cutting time. In conclusion, optimizing slice thickness and motor performance is essential to produce high-quality tempe slices with maximum time efficiency. These findings are significant for developing tempe slicing machine technology that enhances productivity and competitiveness for MSMEs.
Penerapan Mesin Perajang Dan Penggoreng Kentang Semi Automatis Guna Mempercepat Proses Produksi Kentang Goreng Produk UMKM “Make - D” Padang Yanuar; Ign. Gunawan Widodo; Atikah Ayu Janitra; Sri Harmanto; Ampala Khoryanton; Eni Safriana; Arif Pambekti; Eri Prihatmini
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 6 : Juli (2025): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

UMKM Make-D is located in Dieng Kulon Tourism Village, one of the villages in Batur District, Banjarnegara Regency. Potato chips are a typical souvenir from this area, along with the increase in tourist visits in proportion to the demand for potato chips. The production process is still traditional, making it difficult for UMKM to meet customer demand. The goal of the mechanical engineering lecturer community service team is to implement a semi-automatic chopping and frying machine to help speed up the production process of quality fried shallots. The method in this community service begins with identifying partner problems, the next stage is to conduct a group discussion with the community service team to discuss problem solutions, the result of this community service is the application of appropriate technology for semi-automatic chopping and frying machines to improve the potato chip production process.
Optimizing curing parameters to enhanced the compressive strength and toughness properties of Resin-Coated Sand (RCS) in foundry applications Ampala Khoryanton; Sri Harmanto; Ahmad Mamba’udin; Abdul Syukur Alfauzi; Hery Tristijanto; Zaenal Abidin; Padang Yanuar; Farika Tono Putri; Wahyu Isti Nugroho; Timotius Anggit Kristiawan; Friska Ayu Fitriani Sugiono; Iman Mujiarto; Elfrida Rizky Riadini; Yuris Bahadur Wirawan
Jurnal Polimesin Vol 23, No 2 (2025): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i2.6124

Abstract

Conventional heating methods remain prevalent among small and medium-sized enterprises (SMEs) for aluminum mold thermal regulation during resin-coated sand (RCS) core production. Inconsistent thermal regulation significantly alters the characteristics of resin-coated sand cores. This study aims to investigate the effect of curing parameters on the compressive strength and toughness of the resin-coated sand. The RCS specimens were prepared using an aluminum mold that underwent controlled thermal treatment in an electrical furnace. The thermal treatment is performed by processing specimens across a curing temperature range of 200-300°C and varying curing time from 3 to 15 minutes. HDPE polymer was proposed as the RCS binder. Compressive and impact tests were carried out to determine the characteristics of resin-coated sand. The results showed a non-linear relationship between curing parameters and mechanical properties. Although moderate curing time and higher temperatures initially improve compressive strength and toughness, exceeding optimal thresholds leads to the degradation of these mechanical characteristics. The highest mechanical properties (compressive strength = 38.4 MPa, toughness = 0.43 MPa) are achieved through a curing temperature of 250°C and a curing time of 9 minutes. This study provides valuable insights into determining the optimal parameters for processing resin-coated sand cores or molds with superior compressive and toughness properties.
Uji Kinerja Mesin Perajang Daun Tembakau Sistem Conveyor Kapasitas 120 Kg/Jam Menggunakan Motor Listrik 1 Hp Harry Prayitno; Ampala Khoryanton; Gunawan Widodo; Erwan Tri Efendi; Mohammad Ragil Nur Huda; Desna Syarif Syawaludin; Indra Surya Al Muhith; Gutomo; Eni Safriana
Journal of Mechanical Engineering and Applied Technology Vol. 4 No. 2 (2026): VOLUME 4 ISSUE 2 YEAR 2026 (JULY 2026)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jmeat.v4i2.7503

Abstract

A Small and Medium Enterprise (SMEs) located in Jragung Village, Karangawen, Demak, is engaged in tobacco slicing with a harvest capacity of 400–600 kg. However, the production process is still performed manually using a conventional knife, yielding only 40 kg per day with four employees. This method is inefficient in terms of time, labor, and production output. Additionally, employees have reported health issues due to the prolonged slicing process. To address these challenges and improve productivity, the use of an automatic tobacco slicing machine is necessary. The purpose of this study is to design and develop a tobacco leaf slicing machine utilizing a conveyor system powered by two drive motors. The methods used include a literature review to obtain theoretical foundations and interviews to gather information from relevant sources. The developed machine has dimensions of 530 mm × 810 mm × 1,015 mm and is equipped with two electric motors: one rated at 0.75 HP and 1,400 rpm, and the other at 0.25 HP and 1,420 rpm. Based on test results, the machine achieved an actual slicing capacity of 124.76 kg/hour. The best slicing result was obtained at speed level 2, with slicing uniformity ranging from 2.4 mm to 3.0 mm and an accuracy of 92.29%.
PENGGUNAAN DAPUR PEMANAS LISTRIK UNTUK MENINGKATKAN KUALITAS INTI CETAKAN DI UKM PENGECORAN ALUMINIUM DI JUWANA PATI JAWA TENGAH Sri Harmanto; Ampala Khoryanton; Abdul Syukur Alfauzi; Hery Tristijanto; Friska Ayu Fitrianti
Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Vol. 6 No. 2 (2025): Vol. 6 No. 2 Oktober 2025
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/sitechmas.v6i2.7063

Abstract

UD BUDI JAYA LOGAM yang berlokasi di Juwana, Kabupaten Pati, Jawa Tengah, merupakan salah satu sentra industri pengecoran aluminium yang telah berkembang pesat. Produk utama yang dihasilkan adalah burner kompor gas untuk kebutuhan ekspor, disertai berbagai produk tambahan seperti komponen kendaraan bermotor, perlengkapan rumah tangga, dan beragam kerajinan berbahan aluminium cor. Permasalahan utama yang masih dihadapi UKM ini terletak pada proses pemanasan inti cetakan berbahan resin coated yang masih menggunakan kompor gas. Proses manual tersebut menyebabkan ketidakteraturan suhu pemanasan, sehingga kekuatan inti cetakan tidak seragam dan waktu produksi menjadi lebih lama. Berdasarkan kondisi tersebut, kegiatan pengabdian kepada masyarakat ini dilakukan dengan tujuan untuk menerapkan dapur pemanas listrik sebagai solusi inovatif yang mampu memberikan pemanasan lebih stabil, aman, dan efisien. Metode pelaksanaan meliputi tahapan survei dan identifikasi permasalahan, penilaian kelayakan UKM sebagai mitra, serta penerapan hasil rancangan alat di lokasi produksi. Diharapkan penerapan teknologi tepat guna ini dapat meningkatkan kualitas dan efisiensi produksi inti cetakan di UKM BUDI JAYA LOGAM. Luaran kegiatan meliputi prototipe dapur pemanas listrik, publikasi ilmiah nasional, publikasi media daring, serta pendaftaran Hak Kekayaan Intelektual (HKI) sebagai bentuk keberlanjutan inovasi.
Co-Authors A Fauzi, Abdul Syukur Abdul Syukur Alfauzi Abdul Syukur Alfauzi Abidin , Zainal Aditya, Dwiky Septian Agus Pramono Ahmad Hamim Su’udy Ahmad Mamba’udin Alfauzi, Abdul Syukur Aminuddin, Jamrud An Nizhami, Avicenna Andreyanto W, Mirda Anggit, Timotius Ardien Devri Karuniawan Arif Pambekti Atikah Ayu Janitra Ayu S, Friska Balqis Balqis Bambang Sumiyarso Budi Utomo, Agung Bambang Desna Syarif Syawaludin Elfrida Rizky Riadini Eri Prihatmini Erwan Tri Efendi Farika Tono Putri Farika Tono Putri Friska Ayu Fitriani Sugiono Friska Ayu Fitrianti Gunawan Widodo Gutomo Gutomo Gutomo Harry Prayitno Hery Tristijanto Hery Tristijanto Ign. Gunawan Widodo Ignatius Gunawan Widodo Ikhsan Muzaki Indra Surya Al Muhith Kartika Sari Luqman Al Huda Manggala, Taruna Mochamad Denny Surindra Mohammad Ragil Nur Huda Muhammad Devan Balaya muwaffaq, Abiyyu Sayyid Nanang Apriandi Nanang Budi Sriyanto Nashrullah, Miftah Nouvaldy, Raditya Eka Oktariza, Gio Padang Yanuar Padang Yanuar Padang Yanuar Purnomo, Adhy Putri, Farika Tono Rani Raharjanti Safriana, Eni Saputro, Raynaldi Satito, Aryo Slamet Priyoatmojo Sri Harmanto Sri Harmanto Sri Harmanto Sriharmanto, Sriharmanto Sugeng Irianto Sunardi Sunardi Sunarto Sunarto Supandi Supriyo Tengku Riza Zarzani N Timotius Anggit Kristiawan Tristidjanto, Hery Wahyu Djalmono Wahyu Isti Nugroho Warso Warso, Warso Widodo, Ignatius Gunawan Yanuar Mahfudz Safarudin yatimah, Dhurotul Yuris Bahadur Wirawan Yusuf Dewantoro Herlambang Zaenal Abidin Zaenal Abidin Zulhan Widya Baskara