PERANCANGAN AKTIVITAS PENANGANAN MATERIAL PT XYZ DENGAN PENDEKATAN VIRTUAL CELL MANUFACTURING

• Main Author: Haykal Firza Himawan, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/79954
• Institution: Institut Teknologi Bandung

PT XYZ is a steel fabrication manufacturing company that adopts a job shop production system and implements a process layout on its factory floor to be more adaptive to the high variation in customer order characteristics. However, the current system has struggled to adapt to large-scale varied demands. Based on observations conducted on the factory floor, 47.8% of components ordered by customers are reported as delayed due to the inability to meet the set target times. The delays are attributed to a layout arrangement that does not consider the variation in characteristics and the quantity of orders from customers. An alternative solution proposed is to design the facility layout based on the similarity of components using the Group Technology (GT) concept. The research aims to design an effective GT model to address changes in market conditions at PT XYZ in creating a facility layout with maximum processing part productive time and reducing additional setup durations needed. The Virtual Cell Manufacturing (VCM) model is chosen as the GT model to be used as an approach for designing production cells. The developed VCM model, tailored to its actual conditions, will be solved using linear programming analytic methods with the goal of maximizing productive time, reducing shared machine usage, and minimizing excess resource utilization. The designed VCM can adapt to changes in demand by accommodating subjective factor interventions as long as their impact does not exceed half of the planning period's duration. With the VCM approach, PT XYZ can implement a three-cell production system layout on the factory floor using 10 machines and 6 runner personnel. This design results in a 28% increase in productive time and a 24% decrease in setup activity percentage for a demand of 183 hours per week.