Productivity Enhancement for SMEs Plastic Bottle Enterprise by Lean Technique Application

Ubolrat Wangrakdiskul¹ , Paisit Sapparot²

Section:Research Paper, Product Type: Journal-Paper
Vol.7 , Issue.4 , pp.9-13, Dec-2020

Online published on Dec 31, 2020

Copyright © Ubolrat Wangrakdiskul, Paisit Sapparot . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
This research aimed to enhance productivity of plastic bottle production process focusing on High Density Polyethylene plastic bottles. There were 3 main stages of production process which divided to 13 steps operated by 8 workers. After analyzing the process, it found that cycle time was 5 seconds/pc with capacity 6,480 pieces/ 9 hours. At the 6th station; cutting bottle fins, it had the long cycle time leading to unmeet the target. In addition, at the 12th station of packing process, it is also the second-longest cycle time leading to delay work. On the contrary, low cycle time was found at the first main stage of mixing plastic beads. For improving productivity, lean technique focusing on 7 wastes was employed. Therefore, the 1st main stage station had been moved to operate at the end of working day for feeding on the next day process. For the 6th step, it was suggested to add the automatic machine for worker replacement. Furthermore, delay work occurred at the 12th step. It was improved by moving workers from the previous station to support work with the current workers at this station. It can be concluded that replacing automatic machine has reduced 3 workers. In addition, waiting time was also decreased. The cycle time was reduced from 5 seconds/ pc to 4 seconds/ pc which decreased by 20%. Production capacity can be enhanced from 6,480 pieces/ 9 hours to 8,100 pieces/ 9 hours which increased by 25%.

Key-Words / Index Term :
High Density Polyethylene Plastic Bottle Plant, Productivity Improvement, Lean Manufacturing

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