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Siti Mundari
Jurusan Teknik Industri, Universitas 17 Agustus 1945 Surabaya, Indonesia
Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Analisis Perencanaan Persediaan Bahan Baku Biji Plastik LDPE (Studi Kasus : CV. Jaya Perkasa Abadi) Christian Steve Jonathan Mundung; Siti Mundari
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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CV. Jaya Perkasa Abadi is a company that specialises in the production of cast buckets using LDPE (Low Density Polyethylene) pellets as raw material. CV. Jaya Perkasa Abadi is located at Pergudangan Jaya Park Blok C No. 7 Dusun Kapas Melati, Jabaran Village, BalongBendo District, Sidoarjo Regency. This company faces challenges in managing the supply of LDPE (Low Density Polyethylene) seed raw materials, which are subject to fluctuations in demand. The fluctuation in demand leads to excess and shortage of plastic pellet raw material stock. To overcome this problem, it is necessary to analyse the planning and management of the supply of LDPE (Low Density Polyethylene) seed raw materials using the probabilistic calculation method of the P back order model. This method involves iteration to select the best solution resulting in the minimum total inventory cost. Based on the calculation results using the P back order model probabilistic calculation method. The most optimal results were obtained with a total cost of Rp 5,693,109,330 by placing orders T_0 every 6 days or 0.018 years, the expected maximum inventory is 14.441 kg and the service level is 99.99%.
Usulan Perancangan Ulang Tata Letak Fasilitas Untuk Meningkatkan Efisiensi Pada Area Produksi (Studi Kasus: PT. XYZ) Bima Maulana; Siti Mundari
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

PT. XYZ is a company operating in the printing sector. The main function of the company is to print various official documents such as diplomas, permits and others. The company is also involved in the publication of books and other public prints. The problem here is the layout of the production facility, which does not take into account the proximity between the departments of the workplace, resulting in distant material movements as well as increased material handling costs. The aim of this research is to redesign the new layout of the production facility to improve material handling efficiency and reduce transport costs. The method used in this design is Systematic Layout Planning, which analyses the degree of proximity between departments using Activity Relationship Chart and Activity Relationship Diagram techniques to describe the departmental layout relative to each other. The results obtained in this research were to reduce the material transportation distance by 1,391,409 cm/month or equivalent of 32.88%, and to reduce the transportation time by 10,013.82 seconds/month or equivalent of 34.85%, as well as to reduce the material handling cost by Rp. 142,247/month or equivalent of 32.57%.
Co-Authors Bima Maulana Christian Steve Jonathan Mundung