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All Journal Jurnal Teknik Industri TEKMAPRO Journal of Industrial Engineering and Management Heuristic OPERATION EXCELLENCE: Journal of Applied Industrial Engineering Teknika: Engineering and Sains Journal Jurnal Sains Teknologi dan Lingkungan (JSTL) Metode : Jurnal Teknik Industri Tibuana : Journal of Applied Industrial Engineering Jurnal Abadimas Adi Buana Journal Technology and Implementation Bussines PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Teknologi dan Terapan Bisnis MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Surya Teknika Yumary: Jurnal Pengabdian kepada Masyarakat Industrika : Jurnal Ilmiah Teknik Industri Jurnal Bisnis Mahasiswa Nomicpedia: Journal of Economics and Business Innovation Jurnal Teknologi dan Terapan Bisnis Journal of Artificial Intelligence and Digital Business Jurnal Taguchi : Jurnal Ilmiah Teknik dan Manajemen Industri Jurnal Kendali Teknik dan Sains Jurnal Pengabdian Masyarakat dan aplikasi Teknologi Journal Serambi Engineering (JSE) JRSI (Jurnal Rekayasa Sistem dan Industri)
Siti Muhimatul Khoiroh
Universitas 17 Agustus 1945 Surabaya
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Other

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Penerapan Preventive Maintenance dan Pemasangan Emergency Lamp Dalam Minimasi Product Defect Akibat Heater Terhadap Produk Kemasan Maulana, Helmi; Khoiroh, Siti Muhimatul
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 3 (2023): July 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i2.15333

Abstract

Plant printing is a company unit tasked with fulfilling product packaging needs. In the production of printing plants from July to December, it was found that an average of 4% of products had defects (defects) exceeding the allowable tolerance limit of 2% per month, the biggest cause of problems with one of the machine components, namely the heater component. In these components found downtime of 3900 minutes for 3 months. Based on these problems, it is necessary to take preventive measures with a preventive maintenance approach by determining the schedule which is obtained from the calculation of the mean time to failure (MTTF) that the recommended maintenance interval is once every 5 days. Plus another improvement with the installation of an emergency lamp if the heater is indicated to be experiencing a mismatch. After the two approaches and improvements were carried out, a decrease in the number of product defects was obtained where the defect in the previous 6 months averaged 4% and in the following month after implementation the number of defects decreased to only 1.83%.
Meminimalisir Tingkat Kecacatan Produk Biji Kopi Robusta Arjuno Pada Proses Produksi Untuk Meningkatkan Kualitas Produk Wibowo, Andreas Edo; Khoiroh, Siti Muhimatul
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 3 (2023): July 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i3.15665

Abstract

Kopikula Roastery Coffee, a producer of Robusta Arjuno coffee beans, experienced aproduction decline due to product defects. By using Statistical Process Control (SPC), the quality was analyzed, and the causes of defects were identified. The company had a low quality control level, with a defect percentage of 2.97%. Factors such as workers, methods, environment, and machinery contributed to the defects. To minimize the number of defects, standardization, improved production methods, workspace enhancements, and machinery component replacements were implemented. As a result, the defect percentage decreased to 1.84%. Kopikula Roastery Coffee is dedicated to continuously improving product quality through effective quality control measures, aiming for customer satisfaction and upholding its reputation as a producer of high-quality coffee beans.
Analisis Perhitungan Tenaga Kerja pada Produksi Rambut Palsu (Studi Kasus : CV. Mahkota Kreasi Berlina) Insani, Alif Beta Mulya; Khoiroh, Siti Muhimatul
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 3 (2023): July 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i3.15726

Abstract

CV. Mahkota Kreasi Berlina is struggling to keep up with demand. Even though currently, CV Mahkota Kreasi Berlina has added working hours every week. In this case CV. Mahkota Kreasi Berlina has never carried out a workforce optimization calculation and made a comparison of additional workers with overtime hours. therefore, in order to meet demand, researchers will calculate the need for labor and make a comparison between adding labor and overtime according to production planning or with the workload analysis (WLA) method at the minimum cost. From the results of data processing, the minimum cost results are obtained, namely the calculation of the number of labor requirements in a 6 month period using 42 workers and overtime with a total cost of Rp. 495,800,000 per 6 months. Calculation of labor with WLA resulted in the company incurring substantial costs, where the results of the calculation of WLA amounted to Rp. 526,392,533 per 6 months
Pengendalian Kualitas Produk Rak Display Guna Mengurangi Cacat di UD. Afareza Rajarak Ansori, Mhammad Zain Al; Khoiroh, Siti Muhimatul
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 7 No. 2 (2024): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v7i2.27713

Abstract

UD Afareza Rajarak is an industrial engaged in manufacturing and retail trade that produces racks. Two types of products are often ordered by customers, namely wall shelves and wicket racks. There are 4 product defects such as imprecise transverse wire, bent hollow iron, bent transverse wire, and poor welding residue. The highest percentage of defects for wall rack products was 4.81% in January 2024 and wicket racks were 5.05% in December 2023. Causing turnover losses to UD. Afareza Rajarak annually, with the largest loss in December amounting to Rp 3,956,250. This study aims to determine the factors that cause defects and how to reduce product defects in UD. Afareza Rajarak uses the Plan Do Check Act (PDCA) and Failure Mode and Effects Analysis (FMEA) methods. The factors causing damage are human factors, methods, machines, raw materials, and the environment. Apply fixes based on PDCA methods that have been performed. Keywords: Quality, Product, Defective, PDCA, FMEA
Usulan Perbaikan Kualitas pada Produksi Flanges Pipe dan Rubber Gasket Guna Mengurangi Produk Cacat (Studi Kasus : CV Anugerah Sukses Sejahtera Surabaya) Rodjak, Moch Fhahrul; Khoiroh, Siti Muhimatul
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 7 No. 2 (2024): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v7i2.30277

Abstract

CV Anugerah Sukses Sejahtera is a company that operates in the field of manufacturing flanges and rubber gaskets. The company's production process sets a defect tolerance at 5%. In the production flow there is a process failure or defect that occurs in the production process and increases the tolerance amount above a predetermined limit. From the data that has been collected, researchers can identify the types of defect characteristics using the SPC (Statistical Process Control) method and analyze them using fishbone diagrams, as well as provide suggestions for improvements to the company. Based on the Pareto diagram, it was concluded that the highest percentage of defects was in burry defects at 43.2%, the highest rubber attribute defects were in wrinkles at 36.7% and variable flanges defects were in flatness defects at 44.1%. Based on the processing of samples 1-8, it was found that sample proportions exceeded the control limits of the P flange control chart, namely UCL at week 5 and LCL at week 6, while the other proportions were still in the control stage. The dominant cause of this problem is employees' lack of control over the job desk and lack of maintenance on machines. Thus, the proposed improvement given to the company is to carry out On Job Training for new employees, check the rubber raw materials and flanges raw materials, add LED lighting to each machine and carry out regular machine maintenance scheduling
Penerapan Just in Time sebagai Upaya Peningkatan Efisiensi Operasional Manajemen Persediaan Astafira, Safril; Khoiroh, Siti Muhimatul
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 4 (2026): November - January
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i4.3676

Abstract

Utuh Mandiri Food sebagai perusahaan yang bergerak di bidang industri makanan perlu memiliki sistem perencanaan persediaan yang efisien guna menghindari penumpukan bahan baku maupun kekurangan stok yang dapat menghambat produksi. Metode penelitian yang digunakan adalah studi kasus dengan pendekatan deskriptif kualitatif dan kuantitatif. Analisis dilakukan untuk mengevaluasi bagaimana implementasi prinsip JIT dapat meminimalisasi pemborosan, mengurangi biaya penyimpanan, dan meningkatkan responsivitas terhadap permintaan pasar. Dari hasil penelitian didapatkan bahwa JIT mampu mengurangi jumlah frekuensi pemesanan dibandingkan dengan EOQ dan kebijakan perusahaan. Untuk bahan baku tepung serdadu kuning frekuensi pemesanan per tahunnnya adalah metode konvensional sebanyak 60 kali, EOQ sebanyak 7 kali serta JIT sebanyak 3 kali. Untuk bahan baku tepung terigu hikari biru frekuensi pemesanan per tahunnya adalah metode konvensional sebanyak 60 kali, EOQ sebanyak 3 kali, serta JIT sebanyak 1 kali. Total biaya persediannya untuk bahan baku tepung serdadu kuning mampu diturunkan dengan metode JIT dari Rp10.061.797,5 menjadi Rp1.033.374,7. Dan untuk bahan baku tepung terigu hikari biru mampu diturunkan dari Rp9.944.599,5 menjadi Rp532.571,32. Hal ini menunjukkan bahwa metode JIT mampu untuk melakukan efisiensi operasional dalam manajemen persediaan di CV. Utuh Mandiri Food. Dengan pengadaan bahan baku yang dilakukan secara tepat waktu sesuai kebutuhan produksi, perusahaan dapat menekan biaya penyimpanan dan mengurangi risiko bahan baku kedaluwarsa.
Analisis Kelayakan Penambahan Mesin Mixing untuk Meningkatkan Output Produksi Briket Arang Kelapa (Studi Kasus PT. Handoko Jaya) Yuniarto, Aditya Candra Putra; Khoiroh, Siti Muhimatul
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 4 (2026): November - January
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i4.3847

Abstract

Indonesia merupakan salah satu negara dengan ketersediaan bahan baku kelapa yang melimpah, sehingga memiliki potensi besar dalam industri briket arang tempurung kelapa. PT. Handoko Jaya sebagai salah satu perusahaan produsen briket menghadapi kendala utama pada proses pencampuran (mixing) yang berdampak pada ketidakseimbangan kapasitas antarstasiun kerja, penurunan efisiensi, serta keterlambatan pemenuhan permintaan pasar. Penelitian ini bertujuan untuk menganalisis kelayakan investasi penambahan satu unit mesin mixing dari aspek finansial serta mengevaluasi dampaknya terhadap peningkatan produktivitas perusahaan. Metode penelitian yang digunakan adalah pendekatan kuantitatif deskriptif melalui studi kasus, dengan pengumpulan data melalui observasi, wawancara, dan analisis dokumen perusahaan. Analisis finansial dilakukan menggunakan indikator Net Present Value (NPV), Internal Rate of Return (IRR), Payback Period (PP), Break-Even Point (BEP), serta analisis sensitivitas terhadap perubahan tingkat diskonto. Penelitian ini bertujuan untuk menganalisis kelayakan investasi penambahan mesin mixing pada perusahaan guna meningkatkan kapasitas produksi. Hasil analisis menunjukkan bahwa investasi ini layak direalisasikan, ditunjukkan oleh nilai NPV sebesar Rp 1.104.771.481 pada tingkat diskonto 4,75%, IRR sebesar 10,51% yang melebihi suku bunga acuan, serta Payback Period yang relatif cepat yaitu sekitar 2,4 bulan. Melalui uji sensitivitas hingga tingkat diskonto 25%, nilai NPV tetap positif, sehingga investasi dinyatakan aman dan menguntungkan. Selain itu, penambahan mesin mixing diproyeksikan mampu meningkatkan kapasitas produksi dari 200 kg menjadi 400 kg per siklus giling, yang berkontribusi pada peningkatan produktivitas, kelancaran proses operasional, dan kemampuan perusahaan dalam memenuhi permintaan pasar.
Analisis Perencanaan Pengadaan Bahan Baku pada Produksi List Gypsum dengan Pendekatan Lot Sizing Ardiansyah, Fredy Pri; Khoiroh, Siti Muhimatul
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.52487

Abstract

This study discusses the analysis of raw material procurement planning in the production process of gypsum molding at UD Jaya Gypsum using a lot sizing technique approach. The main problem faced by the company is the inaccuracy in the quantity and timing of raw material orders, which affects production continuity and cost efficiency. This study employs the Economic Order Quantity (EOQ), Lot for Lot (LFL), Period Order Quantity (POQ), Least Unit Cost (LUC), and Least Total Cost (LTC) methods to determine the most optimal order size. Raw material requirement data are obtained from historical demand and production schedules. The results of the analysis show differences in total costs among the methods and provide recommendations for the most efficient lot size ordering for the company. By applying an appropriate lot sizing method, the company can minimize inventory costs while maintaining production continuity.
Design of an Ergonomic Press Machine Work Aid to Increase Productivity in the Shoe Production Process (Case Study at SMEs One Maxx Mojokerto) Ardana Isra Rachmadi; Siti Muhimatul Khoiroh
JRSI (Jurnal Rekayasa Sistem dan Industri) Vol. 12 No. 02 (2025): Jurnal Rekayasa Sistem & Industri
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jrsi.v12i02.10176

Abstract

UKM One Maxx Mojokerto is a small and medium-sized enterprise engaged in shoe production. The production process, particularly in the stage of attaching the upper to the sole, is still carried out manually using basic tools such as hammers, nails, and pliers. This method requires relatively long processing time, high physical effort, and potentially causes ergonomic complaints for workers. This study aims to design an ergonomic press machine as a work aid to improve productivity and operator comfort. The research method includes user needs analysis, anthropometric measurements for tool dimension determination, and work time analysis using the Maynard Operation Sequence Technique (MOST). The results indicate that the ergonomic press machine design is able to reduce production time compared to manual methods, increase work efficiency, and decrease workers’ physical workload. The implementation of this work aid is expected to enhance production capacity while improving ergonomic working conditions for SMEs.
Co-Authors Ajeng Septiana Aldito Hermawan Almaasah, Irfan Faalih Aziz Andris, Dea Ayu Maharani Ansori, Mhammad Zain Al Ardana Isra Rachmadi Ardiansyah, Fredy Pri Arifa Yuriyadi Astafira, Safril Athira , Nur Rizka Dea Ayu Maharani Andris Dwi Yuli Rakhmawati Fadhil, Moch Nur Helmi Maulana Herlina Herlina I Nyoman Lokajaya, I Nyoman Insani, Alif Beta Mulya Kusnadi, Hajidah Fildzahun Nadhilah Lestari, Febrian Puji Mohammad Insan Romadhan Muhammad Rizal Nur Rizka Athira Pradana, Muhammad Vidiawan Kurnia Putri Hestiningrum Ramadani, Brian Ridhoi, Ahmad Rodjak, Moch Fhahrul Roikan Sofianto Siti Mundari Susilo, Dody Wibowo, Andreas Edo Wiwin Widiasih Wiwin Widiasih Yanuar, Muhammad Lutfi Yudha Adi Kusuma Yuniarto, Aditya Candra Putra Zainal Arief