Reliability Centered Maintenance of Mining Equipment: A Case Study in Mining of a Cement Plant Industry

Abstract

Today’s industrial growth is inseparable from the free market mechanism which is a consequence of economic globalization and thus cannot be avoided by any country. All this leads to a very keen business competition. This can be seen in the high competition of the Indonesian national cement industry and worsened by the oversupply of domestic cement in Indonesia. Semen Padang Co. as a national cement company sets the optimization of production capacity as one of the focus of initiatives. To achieve this, maintenance of production equipment is very important. In the mining unit, the occurrences of breakdown are very high in the crusher plant and conveyor belts having a large number of equipment and serial production activities that need to be set up for effective maintenance planning. The purpose of this study is to develop preventive maintenance planning with the implementation of the Reliability Centered Maintenance methodology and to submit a schedule of planned preventive maintenance activities with the limitation of meeting the target production hours of conveying limestone and silica to each plant. Based on the calculation results from the implementation of preventive maintenance planning, it can reduce the breakdown time by 42% and it is recommended to be applicable. The next study is to calculate the maintenance costs needed in accordance with the maintenance plan that is made with the Reliability Centered Maintenance methodology. This step is expected help the company in minimizing the cost of maintaining crusher plant and conveyor belts.