PERANCANGAN PERBAIKAN PROSES PRODUKSI MENGGUNAKAN METODE VALUE STREAM MAPPING DI PT GAYA GREEN SRIKANDI

• Main Author: Br Ginting, Iren
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/76438
• Institution: Institut Teknologi Bandung

PT Gaya Green Srikandi is one of the companies engaged in the cultivation of organic white oyster mushrooms located in Cianjur. PT Gaya Green Srikandi carries out the production process starting from the processing of the growing media mixture (baglogs) to the harvesting process of white oyster mushrooms. In this production process, the daily output is unstable and has not been able to reach the maximum production capacity of 4,000 baglogs, indicating the presence of waste. This can also be confirmed through direct observation, where defective products are found daily and work-in-process products exist between the production processes. The objective of this research is to improve the performance in the production process of white oyster mushrooms at PT Gaya Green Srikandi by providing the most important and feasible improvement proposals based on the identified waste. The design of the improvement proposals will be carried out using the Lean Manufacturing approach, utilizing tools and methods such as Value Stream Mapping to map the existing and future conditions of the production process, Waste Assessment Model to identify critical waste, 5 Whys to trace the root causes of critical waste, and Future State mapping to map the production process after the implementation of improvements. The research results indicate that the critical waste in the production process of white oyster mushrooms at PT Gaya Green Srikandi includes defects, motion, inventory, and transportation. Furthermore, 11 root causes of this critical waste were identified. The design of the proposed improvements includes changing the crate design and designing a direct flow from the mixing machine to the logging machine, followed by layout changes. The design of the proposed improvements increases the production of baglogs, which subsequently leads to an increase in the number of harvests where the mixing machine, which originally operated only 17 times, increases to 23 times (35,29%) and reduction in the value of defects by 0,75%.