At PT. Miwon Indonesia is divided into
4 business divisions, namely: the Bio Miwon (MSG) division, the Printing
division (flexible packaging), the Corn Starch And Sweetener division (corn
flour and artificial sweeteners), and the power plan division (power generation).
corrective action that causes disruption of the production process due to
frequent occurrence of sudden damage to printing machine components. This
printing technique involves engraving an image or design onto a film plate that
is used to carry the image. Then printed using a rotary or rotating machine.
Cylinders are carved with machine tools and the method of making this film
cylinder is quite complicated with a fairly long process. In each color unit,
there are 5 basic components. These are gravure cylinders, ink reservoirs,
doctor blades, impression rollers, and dryers.
The press cylinder on the rotogravure
printing machine also functions to put pressure on the printing material so
that the ink on the printing template can be transferred to the printing
material. To produce a good print, the pressure of the printing cylinder is
also very decisive. The pressure of this pressure cylinder can be adjusted
according to the material being printed. Therefore, the pressure cylinder has a
very important function in the print production process in the printing
section. Testing with the Age replacement method is used to determine changes
in downtime on the printing machine. The data obtained were analyzed to
determine the optimal time. After that, conclusions are drawn according to the
accepted hypothesis.
The results that have been obtained from
calculations using the age replacement method. Scheduling of preventive
replacement of press roll components that is most optimal is 158 hours with a
component reliability level of 70.97%. Comparing downtime costs and maintenance
costs after using the age replacement method, the maintenance costs are Rp.
196,009,173.6 from the original cost of Rp. 783,238,421 So there is a cost
savings of Rp. 587,229,247.4 or equal to 26.24%.