Muhammad Rizal Rifa'i
Program Studi Teknik Industri, Universitas Singaperbangsa Karawang

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Analisis Beban Kerja Mental Menggunakan NASA-TLX pada Divisi Produksi Perusahaan Metal Stamping Nadia Ayudya Adikarana; Dene Herwanto; Muhammad Rizal Rifa'i
Go-Integratif : Jurnal Teknik Sistem dan Industri Vol 3 No 02 (2022): Go-Integratif : Jurnal Teknik Sistem dan Industri
Publisher : Engineering Faculty at Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/gijtsi.v3i02.7151

Abstract

Human resources as one of the company's assets must be considered because they affect the performance of the company. Metal stamping companies that apply the make to order and make to stock concepts in processing each of their products lead to a high number of requests that need to be achieved every day by workers. Workers have to work 8 and a half hour/day. The purpose of this study is to analyze the factors that affect the mental workload as well as the proposed improvements needed based on the working conditions of the workers. The method used is NASA-TLX, a subjective measurement method of mental workload. This method is in the form of a questionnaire which distributed to 10 workers in the Production Division. The results from this study indicate that the average WWL score is 61.07 and is in the high category. Then it is known factors that affecting are the high target demand each day, the rest time is quite low, the heat from the stamping process, the lack of training on the machines on the production floor. The proposals given are increasing rest periods, holding regular training, providing adequate facilities.
Pengendalian Pengadaan Bahan Baku Sambal Seafood Menggunakan Metode Economic Order Quantity Eka Aditya Rahman; Wahyudin Wahyudin; Muhammad Rizal Rifa'i
Go-Integratif : Jurnal Teknik Sistem dan Industri Vol 3 No 02 (2022): Go-Integratif : Jurnal Teknik Sistem dan Industri
Publisher : Engineering Faculty at Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/gijtsi.v3i02.7267

Abstract

Entrepreneurs must be considered of procuring raw materials, because it can be a source of considerable expenditure. CV LKM had to incur a large cost for one time procurement of raw materials for each production period, apart from limited access, this was also due to the absence of an appropriate order size, and the exact order schedule. This can affect the quality of raw materials in the form of vegetables because they easily rot or expire. Various methods can be used, one of which is the Economic Order Quantity (EOQ) method, because there are several types of raw materials, the multi-item EOQ method is used. Study aims to determine the order size, order frequency, safety stock, and reorder point (ROP) to produce an efficient cost so that the CV LKM raw material procurement scheduling model is formed. After the calculation, based on the multi-item EOQ method on perishable products, the results were around 3.4 kg and 7.4 kg for order sizes, as well as decreasing order frequency, safety stock of 0.88 kg and 5.77 kg with ROP of 1.4 kg and 6.8 kg. It is also estimated that the total cost to be paid by CV LKM is IDR791.730.