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All Journal JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING International Journal of Health, Economics, and Social Sciences (IJHESS) Jurnal Derma Pengabdian Dosen Perguruan Tinggi (Jurnal DEPUTI) JURNAL INOVASI TEKNIK INDUSTRI
Reakha Zulvatricia
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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Application of SQC and ANOVA in Quality Control of Palm Kernel Oil Wilda Roeska Simatupang; Nos Sutrisno; Haniza, Haniza; Ninny Siregar; Budhi Santri Kesuma; Reakha Zulvatricia
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol. 8 No. 2 (2024): EDISI NOVEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v8i2.13169

Abstract

The measurement and control of free fatty acids (FFA), moisture content (MC), and impurity content (IC) using Statistical Quality Control (SQC) in the oil production process were crucial to ensure optimal quality of palm kernel oil (PKO). This study aimed to determine the variance influencing the quality of PKO using Anova analysis. Anova (Analysis of Variance) is a statistical test procedure used to test mean differences among more than two groups. The results of the study indicated that the analysis of variance Fcount values for free fatty acids, moisture content, and impurity content were smaller than the Ftable values, indicating that the measurement results or mean values of these four data groups did not have statistically significant differences.
Penerapan teknologi mesin pengering limbah kulit udang untuk produksi pakan ternak: pendekatan sirkular ekonomi untuk pemberdayaan nelayan dan keberlanjutan lingkungan di UD Cahaya Bersama, Kelurahan Nelayan Indah Puspita, Riana; Reakha Zulvatricia; Banjarnahor, Marali
Jurnal Derma Pengabdian Dosen Perguruan Tinggi (Jurnal DEPUTI) Vol. 5 No. 1 (2025): Januari 2025
Publisher : LPPM Universitas Al-Azhar medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54123/deputi.v5i1.409

Abstract

The application of technology in waste management, particularly shrimp shell waste, has become a key focus in supporting environmental sustainability and community empowerment, especially in coastal areas. One promising initiative is the utilization of shrimp shell waste as a raw material for animal feed production. According to statistical data, the fisheries waste in Indonesia, particularly from the shrimp processing industry, amounts to approximately 200,000 tons annually, with 35% of it derived from shrimp shell waste. This study aims to explore the utilization of shrimp shell waste in animal feed production through the development of a drying machine technology designed to process this waste efficiently. The novelty of this research lies in the integration of shrimp shell drying technology within the context of coastal community empowerment, utilizing a circular economy approach that promotes environmental sustainability and enhances community welfare. The methodology includes stages of planning, preparation, analysis, implementation, as well as mentoring and evaluation. The results of this community service indicate that this technology successfully increased the partners' knowledge on processing shrimp shell waste into nutritious animal feed and boosted their income by up to 20%. Thus, the shrimp shell drying machine technology contributes not only to reducing marine pollution but also provides a sustainable economic solution for coastal communities.
Analysis of Tofu Quality Control Using the Failure Mode and Effect Analysis (FMEA) Method at Tahu Gunung SME Andreanta Sembiring; Reakha Zulvatricia
International Journal of Health, Economics, and Social Sciences (IJHESS) Vol. 7 No. 2: April 2025
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/ijhess.v7i2.7339

Abstract

Business competition that is increasingly dynamic, complex, and uncertain emphasizes company managers to think creatively and innovatively. Product quality plays an important role in maintaining customer trust and loyalty, so companies must focus on developing and controlling product quality to increase competitiveness and achieve competitive advantage. This study aims to analyze the factors that cause product failure and examine strategies in improving quality at SMEs Tahu Gunung. The research method uses the Failure Mode and Effect Analysis (FMEA) method by identifying and reducing potential failures to improve product quality through RPN values. The results of the analysis show the calculation of the highest RPN value of 210 is in the soybean soaking process with the risk of failure due to soaking carried out less or more than the specified time and the water in the soaking tub is not replaced with new water, then obtained the second highest RPN value of 192 in the tofu delivery process. From the results of the RPN calculation, improvements are focused on the soaking and tofu delivery stages, by emphasizing to employees to drain the water reservoir regularly and install a cover for the water tank. In the tofu delivery process, improvements that can be made are checking the tofu before the tofu is sent, using a cover box for the tofu container, and routinely cleaning the mold and box after use.
Analisis Efesiensi Penggunaan Tenaga Kerja dan Optimalisasi Produksi dengan Metode Workload pada Pengolahan CPKO di PT. X Hasudungan, Tom Linson; Zulvatricia, Reakha; Sirmas Munte
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol. 9 No. 1 (2025): EDISI MEI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v9i1.12996

Abstract

Pengolahan KERNEL menjadi Crude Palm Kernel Oil (CPKO) merupakan proses ekstraksi minyak yang dilakukan di Pabrik Minyak Kelapa Sawit (PKS). Tahapan proses di PKS dibagi dalam stasiun pengolahan yaitu loading ramp, screw press, filter ,klarifikasi, pabrik biji, serta stasiun penyuplai energi yaitu ketel uap dan ruang mesin. Kegiatan pengolahan KERNEL di PKS berkapasitas 50 ton KERNEL/jam berlangsung selama 24 jam per hari. Pekerjaan relatif berat, kondisi lingkungan kerja yang bising, suhu panas dapat mengakibatkan resiko kelelahan ataupun kecelakaan kerja dan penurunan produktivitas kerja. Analisis beban kerja melalui melalui metode pengukuran denyut jantung secara langsung pada operator saat melakukan pekerjaan dapat menggambarkan kondisi beban kerja yang sebenarnya terjadi. Analisis denyut jantung dilakukan untuk mengetahui tingkat beban kerja yang dialami operator secara kualitatif dan kuantitatif. Indikator tingkat beban kerja (kualitatif) menggunakan istilah Increase Ratio of Heart Rate (IRHR). Laju konsumsi energi (beban kerja kuantitatif) menggunakan istilah Total Energi Cost (TEC) dalam satuan kkal per menit. Hasil penelitian menunjukkan  bahwa  tingkat  beban  kerja  secara  umum  adalah ringan  sampai  dengan  sedang  dengan  nilai IRHR antara 1,15 sampai 1,74. Tingkat beban kerja tertinggi terjadi pada stasiun ketel uap dengan IRHR 1,74. Tingkat konsumsi energi (tenaga kerja manusia) adalah 1,58 sampai 3,30 kkal/menit.
Analisis Keselamatan dan Kesehatan Kerja dengan Metode HIRA di CV. X M Nugra Maulana; Reakha Zulvatricia; Nukhe Andri Silviana
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol. 9 No. 1 (2025): EDISI MEI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v9i1.12998

Abstract

Banyak faktor yang menyebabkan kecelakaan kerja pada perusahaan, salah satunya adalah kelalaian manusia. Kurang diperhatikan dan tidak dijalankannya prosedur keselamatan dan kesehatan kerja (K3) dengan baik oleh karyawan menjadi permasalahan utama. Penelitian ini berfokus menganalisis risiko Keselamatan dan Kesehatan Kerja (K3) di Bengkel Las Bubut CV. Handoko Perkasa Group Medan dengan menggunakan metode Hazard Identification Risk Assessment (HIRA). Tujuan penelitian untuk mengidentifikasi potensi bahaya, menilai tingkat risiko berdasarkan probabilitas dan keparahan, serta mengusulkan tindakan pengendalian untuk mengurangi risiko. Hasil penelitian menunjukkan beberapa potensi bahaya dengan kategori risiko yang beragam. Berdasarkan penilaian risiko yang telah dilakukan, dapat diketahui bahwa hampir dari setiap tahap pekerjaan di Bengkel memiliki nilai risiko moderate hingga Extreme. Setiap tingkatan bahaya memiliki persentase masing-masing dengan nilai Low Risk (L) 4 %, Moderate Risk (M) 18 %, High Risk (H) 72 % dan Extreme Risk (E) 6 %. Penelitian ini berkontribusi dalam meningkatkan kesadaran dan kepatuhan terhadap prosedur K3 di industri kecil, khususnya di Bengkel Las Bubut. Usulan perbaikan mencakup pelatihan keselamatan kerja, pemantauan berkala terhadap kondisi kerja, dan penggunaan APD yang sesuai.
Analisa Human Error Terhadap Kegiatan Transfer Minyak Pada Department Tank Farm Speciality Fats Menggunakan Metode HEART di PT. X Sandi Febriansyah; Nukhe Andri Silviana; Reakha Zulvatricia; Marali Banjarnahor
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol. 9 No. 1 (2025): EDISI MEI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v9i1.12999

Abstract

Kesalahan kerja yang terjadi tidak sedikit diakibatkan oleh manusia itu sendiri yang disebut dengan human error, yang mengakibatkan proses produksi tidak efektif dan tidak efisien yang mengakibatkan perusahaan mengalami penurunan profit. Persoalan keandalan manusia adalah perihal pengaruh besar terhadap tingkat kecelakaan kerja maupun tingkat produktivitas seorang pekerja. Penelitian ini berfokus pada kesalahan pada pekerja yang sangat berpengaruh kepada keselamatan pekerjanya, selain itu juga sangat berpengaruh terhadap kualiatas ataupun jumlah output produksi. Tujuan penelitian untuk mengidentifikasi kemungkinan-kemungkinan kesalahan operator yang terjadi pada proses transfer minyak di department Tank Fram Speciality Fats di Permata Hijau Palm Oleo (PHPO) dengan metode HEART (Human Error Assessment and Reduction Technique) merupakan salah satu teknik dalam menghitung probabilitas kesalahan manusia. Hasilnya Probabiӏitas kesaӏahan manusia atau human error probabiӏity (HEP) terbesar pada operator transfer minyak bagian Departement Speciality Fats terdapat pada sub task 1.4 yakni membuka manual valve inlet tangki yang akan diisi dan manual valve outlet tangki asal dengan niӏai HEP sebesar 0,95040. Usulan perbaikan adalah melakukan sosialisasi atau briefing, dilakukan pengawasan oleh kepala regu agar, komunikasi antar karyawan dengan kepala regu bisa ditingkatkan lagi, memberikan pengetahuan mengenai kedisiplinan dalam memakai Alat Pelindung Diri (APD) serta Memberikan pengetahuan mengenai K3 (Kesehatan dan Keselamatan Kerja).
ANALISIS PERENCANAAN DAN PENJADWALAN BAHAN BAKU PRODUKSI DENGAN METODE MATERIAL REQUIREMENT PLANNING (Studi Kasus: Usaha Tahu H.Basri) Prasetyo, Healthy Aldriany; Sanjaya, Frana; Zulvatricia, Reakha
Jurnal Inovasi Teknik Industri Vol 4, No 1 (2025): JURNAL INOVASI TEKNIK INDUSTRI
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Muhammadiyah Gombong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26753/jitin.v4i1.1652

Abstract

H. Basri Tofu Business is a business that produces raw tofu or white tofu products, the company still uses conventional calculations in purchasing raw materials. The company purchases raw materials continuously which aims to make raw materials always available so that it is hoped that production activities can run smoothly, but there is often a shortage of raw materials or stock unavailability when tofu production is carried out because there is no scheduling of raw material purchases at H. Basri Tofu Business. What can be done for efficient raw material inventory is to apply the Material Requirement Planning (MRP) method which can determine the supply of raw materials used in making tofu, namely soybeans, tofu flour, and vinegar. To obtain the company's main target, namely getting maximum profit, the company is required to be able to maintain a balanced inventory level to prevent raw material shortages. This study uses the Material Requirement Planning (MRP) method with the Lot for Lot technique using data on the use of raw materials for H. Basri's Tofu Business in the period December 2024 to March 2025 which in the calculation of the supply of raw materials in the tofu production process at H. Basri's Tofu Business is the Lot for Lot technique which is carried out on a weekly basis is the calculation with the smallest total cost of Rp 1,188,646.  
METODE ECONOMIC ORDER QUANTITY (EOQ) SEBAGAI ALAT KONTROL PENGENDALIAN PERSEDIAAN BAHAN BAKU KERIPIK PISANG DI UKM BANATABO Prasetyo, Healthy Aldriany; Tambunan, Sahabat Petrus; Zulvatricia, Reakha; Siregar, Ninny Asnidar
Jurnal Inovasi Teknik Industri Vol 4, No 1 (2025): JURNAL INOVASI TEKNIK INDUSTRI
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Muhammadiyah Gombong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26753/jitin.v4i1.1654

Abstract

Failure to control raw material inventory will result in failure to obtain profits. Banatabo UKM's supply of raw materials for banana horns has not been optimized because it only uses predictions based on experience without carrying out economic analysis calculations which results in over stock, affecting the quality of raw materials, and causing over budget. The aim of the research is to optimize control of the supply of raw materials for horn bananas through calculating the Economic Order Quantity (EOQ) method. The research method is a quantitative method through raw material inventory data, storage and ordering costs at Banatabo UKM. The results of the research are that the optimal amount of raw material purchased using the EOQ method is 290 kg per order. Actually, Banatabo UKM purchases 101 kg of raw materials for each order. The optimal frequency of purchasing raw materials using the EOQ method is 17 times and the actual data for UKM Banatabo is 48 times. Through the EOQ method, raw material inventory costs are Rp. 974,372 every month while the actual data for UKM Banatabo is 1,568,492 every month so the savings is IDR. 594,120 or as much as 38%. Because previously UKM Banatabo had not implemented safety stock (safety inventory) and reorder points (reorder points), UKM Banatabo had to maintain a safety stock of 33 kg and a reorder point of 79 kg to facilitate the continuity of ales cycle. 
Analisis Kelayakan Investasi Produk Air Minum Dalam Kemasan Pada CV. X Zulvatricia, Reakha; Ninny Siregar; Marali Banjarnahor; Sirmas Munte
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol. 8 No. 1 (2024): EDISI MEI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v8i1.11763

Abstract

CV. X merupakan salah satu perusahaan manufaktur yang aktivitas utamanya adalah memproduksi air minuman dalam kemasan (AMDK). Perusahaan ini mulai dibangun pada tahun 2003 dengan status berbadan hukum berbentuk UU dilengkapi dengan surat izin dari pemerintah daerah. Tujuan penelitian ini yaitu untuk menganilisis kelayakan Investasi Pada CV.X apakah usaha ini layak untuk dijalankan atau tidak. Data yang digunakan adalah data primer (teknik wawancara dengan pihak yang dapat memberikan informasi untuk penelitian ini ) dan data sekunder yang diperoleh dari studi kepustakaan. Jenis penelitian ini adalah deskriptif kuantitatif. Metode Analisis yang digunakan adalah kriteria kelayakan investasi yang terdiri dari Net Present Value (NPV), Internal Rate of Return (IRR), Payback Periode (PP) dan Net Benefit Cost (Net B/C) sebagai metode penilaian investasi dari aspek keuangan. Bedasarkan hasil analisis kelayakan investasi dari aspek finansial menunjukkan pengembangan usaha ini layak dijalankan dan dikembangkan dengan umur usaha selama lima tahun pada tingkat discount ratenya sebesar 18%. Hal ini disebabkan besarnya payback period (PP) sebesar 1 Tahun 5 Bulan 26 Hari, net present value (NPV) sebesar Rp.209.140.829, net benefit cost (Net B/C) sebesar 1,69, internal rate of return (IRR) sebesar 25,37% dan break event point (BEP) sebesar Rp. 94.538.822.
Co-Authors Andreanta Sembiring Budhi Santri Kesuma Haniza Hasudungan, Tom Linson M Nugra Maulana Marali Banjarnahor marali banjarnahor, marali Ninny Asnidar Siregar Nos Sutrisno Riana Puspita, Riana Sandi Febriansyah Sanjaya, Frana Siregar, Ninny Asnidar Sirmas Munte Tambunan, Sahabat Petrus Wilda Roeska Simatupang