scholarly journals EVALUASI EFEKTIVITAS LINI PRODUKSI BETON PRA-CETAK MENGGUNAKAN OVERALL EQUIPMENT EFFECTIVENESS (OEE)

2021 ◽  
Vol 16 (1) ◽  
pp. 94-105
Author(s):  
Suluh Elman Swara ◽  
Oyong Novareza ◽  
Sherenia Yuanggra Gita

PT. XYZ merupakan perusahaan industri penghasil beton pra-cetak di Indonesia dan Asia Tenggara yang memiliki 6 lini produksi untuk memproduksi beton pra-cetak. Penelitian ini dilakukan di lini produksi 2 karena memiliki downtime mesin yang tinggi dan defect yang berada diatas 1%. Oleh karena itu, perlu dilakukan pengukuran efektivitas menggunakan Overall Equipment Effectiveness (OEE). Berdasarkan hasil perhitungan, diketahui rata-rata nilai OEE sebesar 38.62% yang menunjukkan efektivitas dari lini produksi 2 masih rendah. Hal tersebut disebabkan oleh  waktu siklus yang tidak memperhitungkan loading time, unloading time, dan waktu tunggu material, sehingga perlu melakukan penelitian waktu siklus menggunakan Stopwatch Time Study (STS) pada mesin Overhead Crane 1 (dari total 5 Overhead Crane)  dan mesin Cor karena memiliki nilai OEE terendah. Penelitian STS menghasilkan perubahan waktu siklus mesin Overhead Crane menjadi 6,63 menit dan mesin Cor menjadi 10.2 menit sehingga terdapat peningkatan nilai OEE yaitu menjadi 40,8167% untuk mesin Overhead Crane dan 61,6871% untuk mesin Cor.

2009 ◽  
Vol 55 (No. 9) ◽  
pp. 423-431 ◽  
Author(s):  
R. Ghaffarian M ◽  
K. Stampfer ◽  
J. Sessions

Optimum road spacing (ORS) of forwarding operation in Styria in Southern Austria is studied in this paper. In a harvesting operation it is important to compute the ORS to minimize the total cost of harvesting and roading. The aim of this study was a comparison of different methods to study ORS. Data from 82 cycles were used to develop two models for predicting the cycle time using statistical analysis of a time study data base. The ORS was computed by three methods including Matthews’ formula (1942), Sundberg’s method (1976), and the two statistical models for predicting the cycle time. The results gave the ORS for one-way forwarding using Matthew’s formula as 1,969 m, Sund-berg’s model as 394.4 m, and the two time study models as 463 and 909 m. The analysis of forwarding data indicated that the speed was related to a distance which contributed to the difference between models and that the loading and unloading time may be related to one or several other study variables.


1932 ◽  
Vol 11 (9) ◽  
pp. 412
Author(s):  
R.W. Bedford ◽  
Roland ◽  
Bedford ◽  
Horridge ◽  
Wright ◽  
...  
Keyword(s):  

2007 ◽  
Vol 34 (S 2) ◽  
Author(s):  
TD Hälbig ◽  
S Assuras ◽  
J Barry ◽  
JC Borod ◽  
JM Gracies ◽  
...  

Author(s):  
Weihui Wang ◽  
Suquan Chao ◽  
Yunping Wei ◽  
Bigen Yang ◽  
Hui Zhao
Keyword(s):  

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