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All Journal J@TI (TEKNIK INDUSTRI) JURNAL DIAN JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) Jurnal Ilmiah Giga Jurnal Abdimas BSI: Jurnal Pengabdian Kepada Masyarakat Tekinfo | Scientific Journal of Industrial and Information Engineering Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Elektrika Abdimasku : Jurnal Pengabdian Masyarakat Jurnal Teknik Industri Terintegrasi (JUTIN) JISO : Journal of Industrial and Systems Optimization Community Empowerment JURNAL TEKNIK INDUSTRI Journal Serambi Engineering (JSE)
Herwin Suprijono
Program Studi Teknik Elektro, Fakultas Teknik Universitas Dian Nuswantoro Semarang
Arts Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Public Health Social Sciences Transportation Other

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Optimasi Permesinan CNC Router untuk Proses Cutting Material Kayu Mahoni Menggunakan Mata Pahat End Mill 3mm Tungsten Carbide Herwin Suprijono; Dewa Kusuma Wijaya
JURNAL TEKNIK INDUSTRI Vol. 10 No. 3 (2020): Volume 10 No 3 November 2020
Publisher : Jurusan Teknik Industri, Fakultas Teknologi Indusri Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (787.117 KB) | DOI: 10.25105/jti.v10i3.8408

Abstract

Intisari— Penelitian ini bertujuan untuk melakukan optimasi proses cutting dari mesin CNC Router tipe G-Weike WK1212. Optimasi yang dilakukan bertujuan untuk mencari nilai level setting optimal proses cutting material kayu mahoni menggunakan mata pahat end mill. Penelitian ini merupakan lanjutan dari penelitian yang telah dilakukan sebelumnya menggunakan mesin CNC serupa dengan material kayu mahoni, namun pada penelitian ini penambahan beberapa parameter respon perlu dilakukan oleh karena pertimbangan masa pakai mata pahat end mill yang digunakan untuk proses cutting material kayu tersebut. Mata pahat end mill yang digunakan pada penelitian ini memiliki karakteristik diameter pisau 3mm dengan 4 mata pisau spiral dan terbuat dari material tungsten carbide. Mata pahat tersebut memiliki harga yang relatif mahal di pasaran, sehingga parameter pengujian terkait mata pahat tersebut perlu dilakukan untuk meminimalisir cracking saat proses cutting. Parameter multi respon yang digunakan pada penelitian ini meliputi waktu proses aktual, dimensi panjang dan lebar hasil proses, kedalaman potong, temperatur dan tingkat cracking mata pahat end mill. Faktor yang digunakan pada penelitian ini adalah kecepatan spindel, kecepatan gerak pemakanan dan kedalaman potong per layer. Metode optimasi pada penelitian ini berbasis Design of Experiment (DoE) menggunakan metode Full Factorial Design dan optimasi plot multi respon. Hasil dari penelitian ini menunjukkan nilai level setting yang optimal untuk kecepatan spindel adalah 7 step, kecepatan gerak pemakanan adalah 6 step dan kedalaman potong per layer adalah 0,25mm. Nilai level setting optimal tersebut menghasilkan waktu proses minimal sebesar 14,31 menit, kedalaman potong sebesar 21,91mm, panjang sebesar 19,89mm, lebar sebesar 19,86mm, temperature mata pahat sebesar 57,7oC dan tingkat cracking sebesar 0.Abstract— This research aims to optimize cutting process of the G-Weike WK1212 CNC Router machine. The objective of this optimization is to find the optimal setting level for cutting process of mahogany wood using end mill router bit. This research is a continuation of previously research that has been done using a similar CNC machine to process mahogany wood material, but in this research the addition of several response parameters needs to be done because of the life time consideration from end mill router bit that used for the wood material cutting process. The end mill router bit that used in this research has a characteristic which is blade diameter is 3mm with 4 spiral blades and is made from tungsten carbide. That end mill router blade has a relatively expensive price on the market, so that the test parameters related to the tool blade need to be done to minimize cracking during cutting process. The multi response parameters used in this reserach include actual processing time, length and width dimensions from the process, depth of cut, temperature and cracking rate of the end mill router bit. The factors used in this research were spindle speed, motion speed feeding and depth of cut per layer. Optimization method in this research is based on Design of Experiment (DoE) using Full Factorial Design method and multi response plot optimization. The results of this study indicate that the optimal setting level value for spindle speed is 7 steps, the motion speed feeding is 6 steps and the depth per layer cut is 0.25mm. The optimal setting level value produces a minimum processing time is 14.31 minutes, depth of cut is 21.91mm, length is 19.89mm, width is 19.86mm, end mill router bit temperature is 57.7oC and cracking rate is 0.
Oyster mushroom baglog crushing machine to support a circular economy in the Omah Jamur Ungaran Nur Islahudin; Herwin Suprijono; Rindra Yusianto; Zaenal Arifin; Salsabiila Zaiima Alhakiim; Vivi Normasari
Community Empowerment Vol 9 No 3 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.11074

Abstract

Omah Jamur Ungaran is one of the businesses engaged in oyster mushroom cultivation, facing challenges with the waste from the oyster mushroom cultivation process. Baglog waste can be crushed using a baglog crusher machine, which separates the growing medium from its packaging. The aim of this community service project is to provide a solution by creating a baglog crusher machine to enhance production capacity and improve the efficiency of the process. This project has resulted in a baglog crusher machine designed to crush baglog waste, which can then be used to produce processed products such as briquettes. The machine is powered by an electric motor, thereby increasing the efficiency of the baglog waste crushing process.
Reconditioning commercial vehicle booth from industrial bakery waste to support herbal products distribution in Menik Jaya Community Group Dewa Kusuma Wijaya; Heru Agus Santoso; Herwin Suprijono; B.J. Ridwan Hartono; Rudi Tjahyono
Community Empowerment Vol 9 No 7 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.11329

Abstract

The Menik Jaya Community Group faces constraints in distributing herbal products, impacting sales quality and quantity. Long distances, limited transportation, and weather-related product damage pose significant challenges. Additionally, bakery industry fiberglass booth waste presents an environmental issue. This community service aimed to address these problems by: 1) Providing more effective distribution through two-wheeled commercial booths; 2) Recycling fiberglass booth waste into functional commercial booths; and 3) Enhancing the group's herbal product marketing capacity. Methods included socialization, booth-making training, and commercial booth utilization assistance. Results yielded environmentally friendly commercial booths, improved distribution efficiency, and increased community income.
From waste to resource: Transforming used tires into crumb rubber for economic growth Heru Agus Santoso; Dewa Kusuma Wijaya; Nur Islahudin; Herwin Suprijono
Community Empowerment Vol 10 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.12754

Abstract

The increasing number of motorized vehicles in Indonesia has resulted in the accumulation of used tire waste, which is difficult to recycle or decompose. Crumb rubber, as a recycled product made from used tire waste, has great potential for use in various innovative applications. This activity program is partnered with the Repro UMKM group located in Nongko Lanang Hamlet, Wonolopo, Mijen District, Semarang City. The purpose of this community service is to implement innovative technology for processing used tire waste into crumb rubber as an industrial raw material for making high-quality products. The implementation of this program includes the fabrication of machines for crumb rubber production and providing technological education about the operation of the machines to the partners. Through this activity, partners are given the knowledge and skills needed to run the production process. The results of implementing crumb rubber technology provide significant benefits in terms of the economy, environment, and society. Economically, recycling used tire waste produces crumb rubber, which can increase partner income, with a market price of around IDR 65,000/kg. From an environmental perspective, crumb rubber offers a solution to the problem of used tire waste, reducing long-term negative impacts. On the social aspect, crumb rubber production activities create new jobs for business actors and communities that contribute to the provision of used tire waste.
Analisis Pengendalian Kualitas Produksi Menggunakan Metode Six Sigma di Industri Ikan Asap UMKM Berkah Turah Kota Batang Yulianto, Wildan; Suprijono, Herwin
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 2 (2025): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i2.44779

Abstract

This research was conducted at UMKM Berkah Turah, which is engaged in the smoked fish processing industry, with the aim of identifying and controlling product quality through the Six Sigma approach. The main problem faced is the high number of defective products, such as burnt fish, mushy meat texture, and uneven maturity. The Six Sigma method using the DMAIC (Define, Measure, Analyze, Improve, Control) approach was applied to identify the causes of the problem and formulate improvement solutions. The analysis results show that the main causes of defects come from human factors, traditional methods, non-uniform raw materials, uncontrolled environment, and inadequate tools. Based on DPMO data of 33,420 and a sigma level of 3.33, it is concluded that the production process is still within the control limits but requires further improvement to sustainably improve quality. Proposed improvements include increased worker supervision, use of modern smoking equipment, procurement of fresh fish raw materials from fishermen, and expansion of production space.
Design for Manufacturing and Assembly Optimization of Home-Scale Biodigester-Composter Using VDI 2222 and Finite Element Analysis Methods Wijaya, Dewa Kusuma; Suprijono, Herwin; Santoso, Heru Agus; Kusmiyati, Kusmiyati; Muchti, Muhammad Agusdika Ridho
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 26 No. 2 (2024): December 2024
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jti.26.2.157-170

Abstract

This research focused on the Design for Manufacturing and Assembly (DFMA) optimization of home-scale biodigester-composter machines. The aims to determine feasibility from technical-economic aspects. The technique was to design the machine's mechanical process, physical, and constituent components. There are two methods conducted on this research, VDI 2222 to optimize and Finite Element Analysis (FEA) to assess the optimal quality results of the machine design based on simulation analysis. This research ended with making a physical prototype of a home-scale biodigester-composter machine using the optimal design, then validating it with a working test of the machine. The results of the VDI 2222 method show an optimal design concept through the structure of the working mechanism. All its constituent components match with the ten target specifications and the machine manufacturing cost of IDR 2,393,000, as well as the assembly chart design for each constituent component. These results are also evaluated using the FEA method. The resistance value of the frame system to maximum Von Mises Stress is obtained at 128.75 MPa with a minimum value of 6.93e-04 MPa. It is concluded to be acceptable at withstanding normal and shear stresses effectively with a relatively small displacement value of 0 to 0.47 mm. The equivalent strain value results are 3.89e-09 ul to 5.83e-04 ul and safety factor value results are 1.93 to 15 ul. It can be concluded that the frame system design concept is safe.
Pengukuran Efektivitas Mesin Multiline Menggunakan Metode Overall Equipment Effectiveness di PT. MNO Digna Arkamaya Trixie Pradipta; Herwin Suprijono
Tekinfo: Jurnal Ilmiah Teknik Industri dan Informasi Vol 13 No 2 (2025)
Publisher : Program Studi Teknik Industri Universitas Setia Budi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31001/tekinfo.v13i2.2669

Abstract

The food and beverage industry in Indonesia, especially powdered beverages, continues to grow rapidly along with increasing consumer demand for practical products with long shelf life. PT. MNO, as one of the companies in this field, faces challenges in maintaining the efficiency and productivity of its production machines. This study aims to analyze the effectiveness of multiline packaging machines using the Overall Equipment Effectiveness (OEE) method to identify factors that affect machine performance and provide recommendations for improvement. OEE is measured based on three main factors, namely availability rate, performance rate, and quality rate. Observations were made for 17 days on machines 11 and 12 in multiline room 4, with three different operational shifts, namely morning, afternoon, and night shifts. The results showed that the average OEE value of machine 11 was 94% and machine 12 was 88.9%, which met the ideal OEE standard of >85%. However, the performance rate of machine 12 was still below the standard of 92.1%, mainly due to high downtime, such as machine setup and label changes. Analysis using a fishbone diagram identifies the causes of low machine performance from the aspects of humans, machines, methods, and raw materials. Some of the main factors that affect machine performance include unstable machine settings, inappropriate sealer temperatures, and less than optimal operator skills. Recommendations for improvement include increasing routine machine maintenance, operator training to improve skills in setting and troubleshooting, and setting the sealer temperature more appropriately according to the characteristics of the label.
Analisis Tingkat Kebisingan Mesin CNC Milling terhadap Pekerja di CV Mitra Engineering Santosa menggunakan Metode Purposive Sampling Ary Kusuma wijaya; Herwin Suprijono
Jurnal Serambi Engineering Vol. 11 No. 3 (2026): Juli 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Abstract

Perkembangan industri manufaktur di era Revolusi Industri 4.0 membawa dampak positif dalam peningkatan efisiensi dan produktivitas, namun juga menimbulkan risiko kebisingan dari mesin-mesin produksi. Penelitian ini bertujuan untuk menganalisis tingkat kebisingan mesin CNC Milling terhadap pekerja di CV Mitra Engineering Santosa (MIENSA) serta membandingkannya dengan Batas Ambang Kebisingan (BAK) yang ditetapkan dalam Permenakertrans No. PER.13/MEN/X/2011. Pengambilan data pengukuran menggunakan Metode Purposive Sampling yang dilakukan saat bengkel beroperasi selama 8 jam kerja pada 7 hari yang berbeda menggunakan Alat Sound Level Meter. Untuk menghitung nilai taraf kebisingan adalah dengan menggunakan rumus kebisingan sesaat. Hasil pengukuran tingkat kebisingan mesin CNC Milling pada divisi produksi di CV MIENSA pada tanggal 17 Februari 2025 dan 23 Juli – 29 Juli 2025 rata-rata sebesar 86,97 dB(A). Nilai ini berada di atas Batas Ambang Kebisingan (BAK) di Pabrik berdasarkan Permenakertrans No. PER.13/MEN/X/2011 yang menyatakan Batas Ambang Kebisingan (BAK) untuk durasi 8 jam kerja per hari yaitu sebesar 85 dB(A). Hasil ini menunjukkan perlunya penerapan sistem pengendalian kebisingan di area produksi untuk menjaga keselamatan kerja, dengan pengurangan waktu kerja secara proporsional atau pekerja harus menggunakan alat pelindung telinga (earplug/earmuff).
Analisis Postur Kerja Operator Mesin CNC Milling Dengan Metode REBA (Studi Kasus: CV. Mitra Engineering Santosa) Thifaldi Abid Alghifari Syah; Herwin Suprijono
Jurnal Serambi Engineering Vol. 11 No. 3 (2026): Juli 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Abstract

Gangguan muskuloskeletal (Musculoskeletal Disorders/MSDs) menjadi salah satu permasalahan ergonomi yang sering terjadi pada pekerja di sektor industri manufaktur, termasuk operator mesin CNC Milling yang sebagian besar aktivitas kerjanya dilakukan dengan postur berdiri. Penelitian ini bertujuan untuk melakukan analisis terhadap risiko postur kerja operator mesin CNC Milling di CV. Mitra Engineering Santosa (MIENSA) dengan menerapkan metode Rapid Entire Body Assessment (REBA). Jenis penelitian yang digunakan adalah deskriptif kuantitatif dengan pendekatan observasional cross-sectional. Pengumpulan data dilakukan melalui observasi secara langsung, dokumentasi aktivitas kerja, pengukuran sudut postur tubuh menggunakan software AutoCAD, serta wawancara dengan operator. Berdasarkan hasil analisis diperoleh skor REBA sebesar 4 yang termasuk dalam kategori risiko sedang sehingga diperlukan upaya perbaikan ergonomi. Hasil observasi dan wawancara menunjukkan bahwa operator mengalami keluhan berupa ketidaknyamanan serta nyeri pada bagian kaki yang diduga berhubungan dengan dominasi postur berdiri selama melakukan aktivitas kerja. Usulan perbaikan yang diberikan meliputi penyediaan kursi ergonomis yang digunakan pada saat proses pengawasan permesinan, penerapan sistem job rotation, serta pemberian waktu istirahat aktif. Dari beberapa alternatif tersebut, penyediaan kursi ergonomis dipilih sebagai solusi yang paling efektif dan efisien karena mampu memberikan variasi posisi kerja antara duduk dan berdiri tanpa menghambat aktivitas produksi.
ANALISIS DEFECT PADA HASIL GERINDA FORTUNA FRAME SET DENGAN METODE DMAIC DI PT X Cindy Maharan; Herwin Suprijono
JISO : Journal of Industrial and Systems Optimization Vol. 8 No. 2 (2025): Desember 2025
Publisher : Universitas Maarif Hasyim Latif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51804/jiso.v8i2.17-24

Abstract

ABSTRAK Peningkatan kualitas produksi menjadi tantangan utama dalam industri manufaktur, termasuk pada proses gerinda Fortuna Frame Set di PT X yang masih menghasilkan tingkat defect relatif tinggi. Penelitian ini bertujuan menganalisis penyebab defect dan memberikan solusi perbaikan menggunakan pendekatan DMAIC (Define, Measure, Analyze, Improve, Control). Hasil analisis menunjukkan dua jenis defect dominan, yaitu Scratch Marks (bekas goresan) dan Waviness (permukaan bergelombang) dengan total 105 kasus dari 2218 unit produksi. Perhitungan menghasilkan nilai DPMO sebesar 23.600 dengan level sigma 3,45, menandakan kapabilitas proses masih perlu ditingkatkan. Upaya perbaikan yang diusulkan mencakup perawatan mesin berkala, pembersihan material, penerapan teknik gerinda yang konsisten, serta pelatihan operator. Penelitian ini membuktikan bahwa metode DMAIC efektif dalam mengidentifikasi akar penyebab defect sekaligus merumuskan strategi perbaikan. Dengan implementasi berkelanjutan, perusahaan dapat menekan jumlah defect, meningkatkan kualitas produk, dan memperkuat daya saing. ABSTRACT Improving production quality remains a major challenge in the manufacturing industry, including in the grinding process of the Fortuna Frame Set at PT X, which still shows a relatively high defect rate. This study aims to analyze the causes of defects and provide improvement solutions using the DMAIC approach (Define, Measure, Analyze, Improve, Control). The analysis results indicate two dominant types of defects, namely Scratch Marks and Waviness, with a total of 105 cases out of 2,218 production units. The calculation resulted in a DPMO value of 23,600 with a sigma level of 3.45, indicating that process capability still needs improvement. Proposed improvements include regular machine maintenance, material cleaning, consistent grinding techniques, and operator training. This study demonstrates that the DMAIC method is effective in identifying the root causes of defects as well as formulating improvement strategies. With continuous implementation, the company can reduce the number of defects, improve product quality, and strengthen competitiveness.
Co-Authors Ariati Anomsari Ary Kusuma wijaya Cindy Maharan Dedi Nurcipto, Dedi Dewa Kusuma Wijaya Dewa Kusuma Wijaya Dewa Kusuma Wijaya Digna Arkamaya Trixie Pradipta Eko Hartini Febriano Wicak Masta Helmy Rahadian Helmy Rahadian Heru Agus Santoso Heru Agus Santoso Kusmiyati Kusmiyati Kusmiyati Kusmiyati Kusni Ingsih Leonardo Rudolf Manangka M Ary Heryant0 Muchti, Muhammad Agusdika Ridho Nugroho, Dony Satriyo Nur Islahudin Ratih Setyaningrum Ridwan Hartono Rudi Tjahyono Salsabiila Zaiima Alhakiim Thifaldi Abid Alghifari Syah Tian Marcelina Tjahyono, Rudi Vivi Normasari Wijaya, Dewa Kusuma Wisnu Adi Prasetyanto Yulianto, Wildan Yusianto Rindra Zaenal Arifin