The impact of shutdowns and equipment failures on the efficiency of the electrotechnical sheet production line

Abstract

One quality that characterizes the management of manufacturing enterprises is the constant search for ways to improve the productivity of production processes. It is production that causes the main stream of materials, components, and parts to flow through individual departments and structures of a company. The task of logistics is to ensure a buyer to obtain the proper quality and quantity of a product in due time and place on the minimal cost of delivery. The use of production lines strongly depends on orders - orders for products. Production is concerned with short throughput times and high schedule reliability in order to on the one hand, fulfill customer demands and on the other hand, increase planning reliability. However, from the business perspective, it is preferred that the available production equipment is highly utilized and that there is the lowest possible WIP (Work in Process level). For the evaluation system used in the study TPM method. The TPM method most commonly employs three indicators: MTTR, MTBF and most typically - OEE. The first two are associated exclusively with technical issues of the examined production line. The object of the study was the production plant of transformer sheets. The article presents parts of research OEE performance indicator for many production lines. In particular, the impact of shutdowns and equipment failures on the sheet production capacity was examined.