ANALISIS PRODUKSI PADA MESIN SPEED DENGAN PENDEKATAN TAGUCHI UNTUK MENGURANGI CACAT PRODUK DI PT INDUSTRI SANDANG NUSANTARA

Sari

ABSTRACT

PT Industri Sandang Nusantara (PT ISN) is a yarn spinning company located at Secang, Magelang. The company currently produces the kind of yarn use raw material polyester. Polyester are sent by PT ISN center. PT ISN using a variety of machines in the production process, one that is machine Speed / Roving machine. Problems encountered in machine Speed is yarn unevenness (CV%).

Methodology used in this is identify factor control and factor noised; and what impact on output. Second, choosing orthogonal arrays (OA) is appropriate. Third, after identifying and influence, the next step is to conduct experiments. Forth, the data processed using ANOVA test and S/N Ratio. Fifth, confirmation of the results of research use Loss Function.  

From the analysis of the data collected on the PT ISN, the obtained results : total failure occurring is 7% of the total production, with the contribution of failure unevenness is 42.30%. Taguchi method is used to determine design the best configuration parameters of machine. The design of machine configurations obtained from this study shown to reduce losses due to defects obtained deviation decrease in yarn unevenness (CV%) of 67.30%. Based on the facts in the field any defect in the engine speed will return to the beginning of the blowing machine and could cost Rp 15.000/product disability. As for the total loss function before the application is Rp 15.300 and after the application of the method Rp 5.300, so the company could save Rp 10.000.

Keywords : roving machine, orthogonal arrays, ANOVA, S/N Ratio, Taguchi loss function.