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All Journal TEKMAPRO Journal of Industrial Engineering and Management Nusantara Science and Technology Proceedings
Caecilia Pujiastuti
Universitas Pembangunan Nasional “Veteran” Jawa Timur
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ANALISIS PERENCANAAN PERSEDIAAN BAHAN BAKU ASBES DENGAN METODE MATERIAL REQUIREMENT PLANNING (Studi Kasus : PT. XYZ) Yustina Ngatilah; Caecilia Pujiastuti; Ricky Eka Putra
Tekmapro : Journal of Industrial Engineering and Management Vol 15 No 2 (2020): TEKMAPRO
Publisher : UPN Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v15i2.143

Abstract

ABSTRAK Industri manufaktur dituntut perencanaan yang baik disemua lini produksi untuk bisa bersaing di era globalisasi saat ini.Perencanaan kebutuhan bahan baku merupakan salah satu yang harus diperhatikan,agar kelancaran proses produksi terjamin. Salah satu tolak ukur perencanaan yang baik ialah mampu memenuhi permintaan sesuai dengan waktu ,jenis dan kuantitas barang yang di inginkan.PT XYZ merupakan perusahaan yang memproduksi asbes,dengan permasalahan yang dihadapi adanya penumpukan bahan baku di Gudang. Bahan baku yaitu asbestos dan semen yang menumpuk, sehingga berimbas pada meningkatnya biaya persediaan yang di keluarkan oleh perusahaan. Material Requirement Planning merupakan metode perencanaan kebutuhan bahan baku yang menterjemahkan Jadwal induk produksi menjadi kebutuhan bahan baku berdasarkan struktur produk untuk menentukan kapan dan berapa bahan baku yang harus dipesan.Diharapkan metode ini akan mengurangi biaya persediaan yang ada saat ini. Dari hasil penelitian diketahui bahwa perencanaan bahan baku periode Januari 2018 – Juni 2019 dengan metode perusahaan di dapatkan Total Cost sebesar Rp7,181,567,947.56,- dan menggunakan metode MRP dengan lot LFL didapatkan Total Cost sebesar Rp5,906,702,181.27.,-. Untuk perencanaan bulan Juli 2019 – Desember 2020 menggunakan metode MRP di dapatkan Total Cost sebesar Rp8,751,169,123.35
Optimal Pressure Vessel Project Schedule Planning with Critical Path Method (CPM) at PT. XYZ Yustina Ngatilah; Caecilia Pujiastuti; Isna Nugraha; Dwi Qomariah Arifin
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

Project scheduling is one element of planning that provides various information for time efficiency to complete a project. The success of a project starts from the planning and preparation of the correct and systematic stages. Every company must try to complete the work on time as scheduled to avoid various losses that arise. This research aims to determine the activities that are classified as critical in the production of pressure vessels belonging to one of the leading companies in Indonesia engaged in natural gas processing, which PT is carrying out. XYZ. This study also compares the costs incurred to complete the pressure vessel project with a normal and accelerated duration of work. The method used is the Critical Path Method (CPM) and Microsoft Project software. CPM is a network analysis that aims to optimize the total project cost by reducing completion time. The use of the CPM method can save time in completing various stages of a project. The initial project duration is 952 working hours or 119 working days. It can be accelerated to 884 working hours or 111.25 working days, 7.75 days faster than the initial schedule. There are 24 critical activities, and the labor cost that must be spent is IDR 72,034,400.00 under normal conditions, while the labor cost that must be spent for the acceleration condition is IDR 76,626,400.00.
Co-Authors Dwi Qomariah Arifin Isna Nugraha Luluk Nofitasari Ricky Eka Putra Rif’atul Firda Erfani Yustina Ngatilah