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All Journal Jurnal Dinamis Journal of Industrial Engineering & Management Research (JIEMAR)
M. Dirhamsyah M. Dirhamsyah
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Humanities Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Other

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Implementation of Value Stream Mapping for Waste Reduction in Crude Palm Oil Production Process Meutia Fadilla; M. Dirhamsyah, M. Dirhamsyah; Husni, Husni
Journal of Industrial Engineering & Management Research Vol. 2 No. 4 (2021): August 2021
Publisher : AGUSPATI Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.264 KB) | DOI: 10.7777/jiemar.v2i4.194

Abstract

PT. Perkebunan Nusantara I Cot Girek is one of the palm oil mills owned by PT. Perkebunan Nusantara I which is engaged in processing palm oil into Crude Palm Oil and Palm Kernel Oil. The problem faced by PTPN I Cot Girek Unit is that there are several wasteful activities that cause the company to experience time losses, production does not reach targets and quality damage to Fresh Fruit Bunch (FFB) and Coconut Palm Oil (CPO). The problem solving method used are Value Stream Mapping to identify wasteful activities, the 5W1H method to identify the causes of waste and the Weighted Product Method to determine the order of priority for improvement. Based on the results of the study, there are 4 activities that can be taken corrective action. After being analyzed using VSM, it was found that the Manufacturing Lead Time decreased from 1185.70 minutes to 1069.73 minutes and the Process Cycle Efficiency value increased from 67% to 74%.
PEMANTAUAN TINGKAT KEADAAN GETARAN BANTALAN BACKWARD INCLINED CURVE CENTRIFUGAL FAN TIPE 2 SWSI AKIBAT PERUBAHAN TARIKAN SABUK-V SEBAGAI PENDEKATAN TEKNIK PEMELIHARAAN DI PABRIK KELAPA SAWIT David C. L Tobing; Ikhwansyah Isranuri; Bustami Syam; M. Dirhamsyah M. Dirhamsyah
Jurnal Dinamis No 5 (2009)
Publisher : Jurnal Dinamis

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ABSTRAKPenelitian ini bertujuan untuk memantau pengaruh perubahan tarikan sabuk-V terhadap getaran bantalan dari backward inclined curve centrifugal fan tipe 2SWSI yang merupakan model dari depericaper fan pabrik kelapa sawit dengan skala 1:3. Analisa sinyal getaran untuk mendeteksi tingkat keadaan yang digunakan antara lain: analisa trend getaran, analisa spektrum getaran dan analisa rotor orbit trajectories. Subjek penelitian adalah bantalan jenis squared flanged UKF 206 J yang dipasang pada poros centrifugal fan. Kecepatan getaran yang merupakan variabel terikat, diukur dengan X-Viber Analyzer pada saat mesin beroperasi. Sedangkan variabel bebas yaitu gaya dinamis pada poros fan (Fdy) diperoleh melalui perubahan tarikan sabuk-V A-37 yang ditentukan berdasarkan kalkulasi gaya defleksi (Pa) yang diukur dengan V-belt tensiometer. Berdasarkan pengolahan data secara statistik, ditemukan bahwa kedua variabel berkorelasi secara non linier. Hasil pemantauan terhadap sinyal getaran pada bantalan model skala dapat menunjukkan antara lain: (a) kecepatan getaran bantalan pada tiap pengujian rata-rata berada di atas standar, (b) kerusakan pada tiap elemen bantalan dipengaruhi oleh besar tarikan sabuk-V, dan (c) kecepatan getaran bantalan akan meningkat ketika tarikan sabuk-V diluar batas miminum dan maksimum.Kata kunci: Centrifugal fan; tarikan sabuk-V; getaran bantalan; analisa trend; analisa spektrum frekuensi; analisa rotor; orbit trajectories
Co-Authors Bustami Syam David C. L Tobing Husni Husni Ikhwansyah Isranuri Meutia Fadilla