This research aims to improve optimizing the performance of LECTRA automatic fabric cutting machine by improving work practices and workloads between people and machines. Case Study: A garment manufacturer, jackets and sportswear. Currently, the performance of automatic fabric cutting machines and preparation of the work has resulted in a number of yards per man-minute, on average 1.993, which is well below the established target of 2.950 yards per minute. That Impact on production costs. The performance was reduced by approximately 0.957 yards per man-minute, or 48.01 percent. The study was carried out to collect data on working methods of the employees and the automatic cutting machine. With man- machine charts tools and 7 QC Tools to analyze issues. The research found that the main problem was the workload of waiting staff. And the machines stopped waiting for employees to organize and bundle work. The researcher suggested improving the working methods and workload of the employees by inventing the bundle machine. The results of the improvement, Number of yards per man-minute. Increased from the previous 1.993 to 3.262 yards per man-minute, the increase was 63.67% and labor cost decreased by 15,162.75 baht per month.
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