Implementation of Lean Manufacturing in the Rubber Industry to Support Sustainable Manufacturing by usung Value Stream Mapping Tools

Authors : Masayu Rosyidah; Isdaryanto

Volume/Issue : Volume 7 - 2022, Issue 8 - August

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PT. XYZ processes rubber raw materials from suppliers in the form of slabs to be processed into semifinished rubber (crumb rubber) to meet customer needs. In its activities there are jobs that do not have added value (non-value added) which can cause inefficiency due to waste. Currently, at the warehouse for receiving raw materials, truck weighing officers have to wait because of the uncertainty of the number of suppliers who come every day, as well as the waiting time for packaging. The purpose of this study is to identify the waste that occurs with the value stream mapping method. Based on the Waste Relationship Matrix, the most dominant waste is in waiting and transportation with a weight of 16% each. In the process cycle efficiency of 63.87%, it means that the process that occurs is still wasteful which does not add value to the customer. From the observations, there are 6 types of waste that occur, namely waiting, transportation, unnecessary motion, overprocessing, inventory, and defects. Several steps that can be taken to minimize waste include strengthening external cooperation, making schedules, and determining weekly delivery targets by suppliers; Addition or change of means of transportation as well as the addition of the number of machine operators; Scheduling product delivery to consumers; Production scheduling according to the number of consumer requests; Stricter sorting of raw material purchases; as well as regular checks on production machines, especially rusty machines.

Keywords : Component; Minimalize; Non Valur Added; Value Stream Mapping; Waste


Paper Submission Last Date
31 - March - 2024

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