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All Journal Inventa: Journal of Science, Technology, and Innovation
Yudi Prastyo
Universitas Pelita Bangsa
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Journal : Inventa: Journal of Science, Technology, and Innovation

 1 
Pengaplikasian 5S dan Kaizen Sebagai Upaya Peningkatan Kualitas Produksi Area Spot Welding di Perusahaan Manufaktur Otomotif Muhamad Tegar Maulana; Dwi Ayu Puspita Sari; Like Andreas Kindangen; Yusuf Eka Setiawan; Yudi Prastyo
Journal of Science, Technology, and Innovation Vol 1 No 2 (2025): December: Inventa: Journal of Science, Technology, and Innovation
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/09hxkp86

Abstract

Improving production quality is one of the key factors in maintaining a company’s competitiveness, particularly in the manufacturing sector such as automotive and electronics. One approach that can be applied to achieve this efficiency is the 5R/5S method (Seiri, Seiton, Seiso, Seiketsu, and Shitsuke) and Kaizen, which focus on establishing an orderly, clean, and disciplined work culture as practiced in Japanese industries. This study aims to analyze the implementation of the 5S and Kaizen methods as an effort to improve the quality of the spot welding production process at PT.Manufacture Automotive. The research was carried out through field observations as an application of industrial theory in a real work environment. The methods used include direct observation, interviews, analysis of 5S implementation, and evaluation of conditions before and after improvements. Data were collected using a checklist audit sheet and analyzed descriptively to measure changes in efficiency and workplace organization. The results show that the implementation of the 5R/5S method successfully improved work quality and productivity. The 5S- condition assessment score increased from 22.24% (Not good category) to 67% (fair category) after the improvements were implemented.
Persepsi Karyawan Tentang Kesadaran K3 & Dampaknya Terhadap Proses Kerja di PT Breadcrumb X: Pendekatan 4M+1E Ria Sri Amelia; Revanza Fitra Hamdany; Sabilla Sholiah; Andry Putra Pratama; Yudi Prastyo
Journal of Science, Technology, and Innovation Vol 1 No 2 (2025): December: Inventa: Journal of Science, Technology, and Innovation
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/ygbxk270

Abstract

Occupational safety and health (OSH) is a crucial aspect in ensuring smooth production processes and protecting workers, especially in the manufacturing industry, which has a high level of occupational risk. This study aims to analyze employees' perceptions of OSH awareness and its impact on work processes at PT Breadcrumb X using the 4M+1E approach. The research method used was descriptive qualitative, with data collection through in-depth interviews, field observations, and documentation of production employees and representatives of the OSH/SHE department. Data analysis was performed using the Miles and Huberman model through the stages of data reduction, data presentation, and conclusion drawing, with data validity maintained through source and method triangulation and member check. The results showed that employees had a basic understanding of K3, but its implementation was inconsistent due to limitations in training, PPE facilities, supervision, and the condition of machinery, work methods, materials, and the work environment, which were risky. These findings confirm that K3 awareness needs to be strengthened through management commitment, work system improvements, and active employee involvement in order to create a sustainable safety culture that supports the effectiveness of work processes..  
Analisis Pengendalian Risiko Korosi pada Material yang Disebabkan oleh Kelebihan Persediaan Menggunakan Metode Kanban Reduction Dony Bayu Leksono; Melco Wanjaya; Monika Lestari; Niki Farras Al Ghalidza Vannie; Yudi Prastyo
Journal of Science, Technology, and Innovation Vol 1 No 2 (2025): December: Inventa: Journal of Science, Technology, and Innovation
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/ntd8ws85

Abstract

manufacturing systems. This condition causes materials to experience longer storage times, thereby increasing the risk of physical damage, especially corrosion of metal materials. This study aims to analyze the factors causing corrosion risks triggered by overstocking, and evaluate the implementation of Kanban Reduction as an inventory control strategy to reduce material exposure to corrosive environments. The methods used include field observation, measuring warehouse humidity levels, analyzing inventory before and after Kanban Reduction, and recalculating the number of kanban cards. The results show a decrease in WIP levels by 35.4%, a reduction in storage time from 14 to 6 days, and a decrease in scrap due to corrosion from 10.8% to 3.2%. These findings reinforce that Kanban Reduction is not only relevant for production flow efficiency but also for mitigating corrosion risks in materials. This study analyzes stock records using tools such as Fishbone diagrams and the 5S method. The study results showed that stock discrepancies were caused by incomplete in/out transactions, defective goods undergoing remelting, and unrecorded goods. Proposed improvements include implementing the 5S method to improve warehouse organization and stricter stock recording controls.
Co-Authors Andry Putra Pratama Dony Bayu Leksono Dwi Ayu Puspita Sari Like Andreas Kindangen Melco Wanjaya Monika Lestari Muhamad Tegar Maulana Niki Farras Al Ghalidza Vannie Revanza Fitra Hamdany Ria Sri Amelia Sabilla Sholiah Yusuf Eka Setiawan