| This research discussed about the implementation of lean manufacturing system. The case study was conducted at PT. Intistamp in Dadap, Tangerang. PT. Intistamp is engaged in printing manufacture, especially stamp. The main products produced by this company is a round stamp. Eventhough this company has been operating for nearly 17 years, there are a lot of waste on the work floor. This resulted some mismatches that occur in the factory such as the emergence of wip buildup due to excess production work stations, the amount of production that is not match with the needs of consumers, so often there is excess supply of raw materials and auxiliary goods, and the work area is messy and disorganized. According to the calculation results, the company currently only get the value 0.008% for Process Cycle Efficiency, 82.47% for Overall Equipment Effectiveness with the value of availability, performance and quality of 88.15%, 94.94% and 98.55%. There are a total of 13 work stations and 21 workers in the production area. Meanwhile, the manufacturing cycle time for round stamp for the present state is 204.38 seconds with an enormous lead time 30 days. According to the cause of the problems that found earlier, there will be some proposed suggestions to eliminate the waste. Some recommendations such as calculating takt time and production capacity, designing finished goods and raw materials supermarket, add safety and buffer inventories, 5S system design arrangement, along with fullwork and line balancing adjustment, and standardized work design disposition with the application of the runner on PT. Intistamp’s work floor. After being given some of the proposed suggestion of lean manufacturing system approach, the value of Process Cycle Efficiency increased significantly which surged by 12.19% and the value of Overall Equipment Effectiveness is increased to 93.56%, while the value of availability, performance and quality becomes 94.27%, 100% and 99.25%. The number of work stations and workers used was reduced to 10 work station and PT. Intistamp only use a total of 14 workers for production activities. The cycle time for making a round stamp was reduced to 164.44 seconds or as much as 19.5% of the initial conditions, and the lead time is only two days. |