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All Journal Jurnal Optimalisasi JiTEKH (Jurnal Ilmiah Teknologi Harapan) Jurnal SImetri Rekayasa
Eddy Eddy
Universitas Harapan Medan
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Peningkatan Overall Equipment Effectiveness (OEE) Pada Mesin Molding Melalui Perbaikan Six Big Losses Di PT. CWI Eddy Eddy; Chairunissa Chairunissa
Jurnal Optimalisasi Vol 7, No 1 (2021): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v7i1.2537

Abstract

TPM is an innovative approach to maintenance activities that focus on preventing damage to machines / equipment and preventing the occurrence of defective products related to machines / equipment. The success of implementing TPM can be measured from the Overall Equipment Effectiveness (OEE) value. OEE measures how effectively equipment is used and functions to keep equipment in ideal condition by minimizing six big losses. OEE consists of three main, measurable components: Availability, Performance and Quality. In this study, OEE calculations were carried out on Molding machines at PT. CWI. The results of OEE calculations for the period July 2019 to June 2020 ranged from 45.49% to 74.35%, indicating that the world class benchmark standard (85.0%) has not been achieved. Based on the loss analysis, it was identified that the dominant losses were Idling at 42.2%, Rework at 17.7% and Breakdowns at 17.3%. The three losses have the potential and become the main priority for improvement in the context of increasing OEE.
Peningkatan Kualitas Batu Bata dengan Menggunakan Metode Taguchi pada UKM Batu Bata XYZ Anggi Anggi; Eddy Eddy; Farida Ariani
JITEKH Vol 9 No 1 (2021): Maret 2021
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v9i1.323

Abstract

The large number of brick producers in the Batu Lapan Lubuk Pakam area, Deli Serdang, as well as market competition from manufacturers who use modern machines to produce bricks have made one brick producer who still uses traditional methods of manufacture compete to improve quality brick. To obtain good quality bricks, namely by looking at the compressive strength of the bricks produced, it is necessary to have an optimal raw material composition that can be produced through experimental designs. In this study, the experimental design used was the Taguchi method. The purpose of this study was to determine the factors that influence the quality of the bricks, to know the composition of the raw materials so that the optimal quality of the bricks was obtained, to know the usefulness of the Taguchi loss function to reduce production cost losses. From the identification of controlled factors, it is obtained the factors that influence the compressive strength of the bricks, namely the composition of the material, the time of stirring, the drying time and the burning time. Experiments were carried out with four different levels of factors. From the analysis, the optimal factor level combination is factor A level 1: clay composition 50%, factor B level 2: stirring time 4 hours, factor C level 1: drying time of 1 day and factor C level 2: burning time 3 days while the Taguchi loss function is sufficient to reduce production cost losses. The test results from 200 units of bricks showed a decrease in the percentage of brick defects from 6%-7,32% to 2,5%-3%.
ANALISA POSTUR KERJA PADA BAGIAN PEMBOTOLAN LIMUN DENGAN METODE QUICK EXPOSURE CHECK hendra antony hutabarat; eddy eddy; nismah panjaitan
Jurnal Simetri Rekayasa Vol 2 No 1 (2020): Article April 2020
Publisher : Universitas Harapan Medan

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Abstract

PT. PabrikEsSiantar is a factory that produces bottled drinks. As an industry which is also a labor-intensive industry where there are many manual material handling activities carried out by workers. The large number of manual material handling jobs is feared to cause musculoskeletal disorders (MSDs), namely complaints in the parts of the skeletal muscles that a person feels ranging from very mild complaints to very pain arising from awkward postures by the body when working. This research method uses the Quick Exposure Check method, which is the assessment by combining the assessment from the perspective of the researcher based on the observed posture of the worker and based on the assessment by the worker. Then recapitulate the questionnaire data in the QEC score sheet and determine the value of the exposure score, the score obtained is 45 - 53 with an exposure percentage of 50 - 58%, so further research and changes are needed. The proposed work posture improvement design is suggested to pay attention to risk factors, especially the back so as not to bend over
Co-Authors Anggi Anggi Chairunissa Chairunissa Farida Ariani hendra antony hutabarat Nismah Panjaitan