PREVENTIVE MAINTENANCE INTERVAL OF CORRUGATOR MACHINE IN PT PURINUSA EKAPERSADA

Sukma, Sanjaya Purnama (2010) PREVENTIVE MAINTENANCE INTERVAL OF CORRUGATOR MACHINE IN PT PURINUSA EKAPERSADA. S1 thesis, UAJY.

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Abstract

PT Purinusa Ekapersada is a packaging product company that is subsidiary of Sinarmas Group Company. Sheets and cardboard boxes are the orders commonly received by this company. Corrugator is the main machine to produce sheet and cardboard boxes. Hotplate part and Mechanical part are the main part of corrugators machine. Applying both corrective maintenance and preventive maintenance creates the high defect cost and opportunity cost. This research is proposed to decide the interval of maintenance based on minimizing cost. The research is done by the model that uses software Maple V Release 5 Network Edition to find the interval of maintenance and Microsoft Excel to validate the result of maple software. Interval of maintenance system is used for decide time of maintenance based on cost minimization. Analysis result shows the interval of maintenance and the cost minimization. The interval for hotplate part is 24 hours with cost Rp 196 and reduces 76.2% from initial cost. The interval for mechanical part is 23 hours with cost Rp 45 and reduces 92.4% from initial cost.

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