Simulation Model for the Productivity Improvement by Line Balancing: A Case Study of Roll Cake Product Group

Abstract

This research aims to minimize total employee working time, enhance production productivity, and improve the operational efficiency of the roll cake production line. The research methodology began with collecting data on the production process to analyze the cycle time and identify inefficiencies or waste within the system. The ECRS technique was applied to enhance work processes and achieve a balanced production flow. The situation was simulated using the Arena program to evaluate the results of the improvement. The study found that after improving the roll cake production process, the number of employees was reduced from 21 to 15, resulting in a labor cost reduction of 700,800 baht per year. Production line efficiency increased 14.5%, 22.82%, and 23.05%, while labor productivity rose to 90%, 81%, and 92% for roll cake production in Groups A, B1, and B2, respectively. Employee working time was reduced by 162.45 minutes per day, resulting in an annual labor and energy cost savings of 1,768,096.50 baht. It demonstrates that the application of the aforementioned technique can significantly improve the efficiency of the production system.