Abstract:
This study was applied the principle and technique of SMED (Single-Minute Exchange of Die) which is one tool of Lean for changeover reduction for battery remodeling production. The purpose is to increase the efficiency, reduce cost, increase production capacity and flexibility and to support the customers need by Just in Time. From the variety of battery models produced by Assembly 1 Section of Siam GS
Battery Co., Ltd. The changeover is necessary, unless changeover, there will be lost from inventory and waiting time. However, if it takes long time for changeover, there will be lost from machine stop also. Therefore, minimum changeover time is the most effective way. The improvement using SMED could save machine installation and modification time. Changeover could be reduced by trying to perform outside adjustment instead of inside adjustment. There were 3 operation steps, 1stSeparated inside and outside adjustment, 2nd Changed inside to outside adjustment and 3rd Improved the efficiency of machine installation. This improvement could reduce machine adjusting time from 97.20 minutes to 31.19 minutes, means 66.01 minutes or 67.91% reduction. This could be converted to battery production volume 16,018 units per year which can increase sell amount to 32,036,000 Baht per year.