---------------------------------------- 1 Mr.sc. Dejan Brankovic, SHP Celex Banja Luka, dejan.brankovic@sfpgroup.eu 2 Mr.sc. Boris Latinovic, SHP Celex Banja Luka, boris.latinovic@shpgroup.eu 3 PhD Zdravko N.Milovanovic, Faculty of Mechaical Engineering Banja Luka, zdravko.milovanovic@unibl.rs THE OPTIMIZATION OF THE PAPER MACHINE DEWATERING PROCESS BY USING THE NEW POLYURETHANE SUCTION PRESS ROLL COVER Dejan Brankovic 1 , Boris Latinovic 2 , Zdravko N.Milovanovic 3 Summary: This paper provides an analysis of the condition of real industrial system after the implementation of new technical and technological solution of the paper machine dewatering system in the production industry system SHP Celex a.d. Banja Luka. The new technical and technological solution is the use of new type of polyurethane cover of the paper machine suction press roll. Compared to the previously used rubber coat, the dewatering performance is significantly positively changing. The measure of change of the condition of system is the increase of dryness of paper which unambiguously determines a lower specific energy consumption per ton of paper produced. Another important value is the increase of lifetime of new coat since the new type of material bears much higher workloads without compromising the performance. From the aspect of maintenance, the new technical and technological solution enables an increase in the interval between two consecutive cycles of grinding of suction press roll cover. Since those are the planned annual cycles of grinding and significant costs of grinding of the coat, the significant economic effects have been achieved within the maintenance plan. The end result is a significant economic benefit of the business production system. Key words: energy saving, production efficiency, maintenance costs, water evaporation 1. INTRODUCTION In modern times the operation and existence of industrial systems depends on the continuous process of upgrading and improving of the working performances of parts of the system. The final result of processes of upgrading and improving of the performances should be the fulfilment of the expectations in terms of increasing the level of production system efficiency and thereby achieving positive business results. Production, as a basic element of profit making, is an activity that has to be acted on positively. The conditions for the smooth functioning of production have to be created as well as the conditions for its growth. The growth of production provides the creation of positive economic developments enabling the development of business systems as well as of the society as a whole. Maintenance, unscheduled downtime, and energy costs are three of the highest budget item for any facility [1]. One of the LOGO WILL BE HERE