Abstract:
The objective of this research is to study the application of lean concepts to improve production efficiency in the steel and metalworking industry in the Eastern Industrial Estate. The population studied includes 100 participants, comprising department managers, supervisors, and employees in the steel industry. A questionnaire was used as the research tool, with a reliability coefficient of .90. Statistical methods used for data analysis include percentage, mean, standard deviation, t-test for mean differences, and one-way ANOVA.
The results indicate that the overall importance of applying lean concepts to improve production efficiency in the steel and metalworking industry in the Eastern Industrial Estate is at a very high level (x̄=4.48). When broken down by category, the level of importance for waste elimination in the process (MUDA) is very high (x̄=4.48), with the most important factor being planned maintenance of machinery to ensure it is always ready for production (x̄=4.56). The level of importance for eliminating process irregularities (MURA) is also very high (x̄=4.50), with the most important factor being the use of tools to analyze root causes of problems (Root Cause Analysis) to improve work performance (x̄=4.58). For eliminating overburden in the system (MURI), the importance level is very high (x̄=4.46), with the most important factor being workflow analysis and improvement to increase efficiency and reduce overburden (x̄=4.63). The comparison of mean differences regarding the importance of applying lean concepts to improve production efficiency in the steel and metalworking industry in the Eastern Industrial Estate, based on business registration types and duration of operation, shows statistically significant differences at the 0.05 level.