Utredning och förslag på ett nytt materialförsörjningssystem
Företagets egentillverkade komponenter
Zetterberg's Industri AB believe that capital and lead time will be reduced by implementing Kanban. Therefore, it was an investigation to prove that Kanban is an effective method. In this work a research had to be done to show how the material supply system looks like today and to explore the subframe components to see which components that are interesting from Kanban viewpoint. Previous orders of subframes were investigated. Therefore, it was a list of the various components of the previous orders for the subframe. Annual volume and manufacturing steps were developed over the various components and then you could see which components which were most interesting for Kanban. It was some discussions with the supervisor and the Lean coach for a decision to introduce Kanban for 5 components. A research of capital and inventory turnover was done for the components. The work also included the selection of appropriate storage sites for these five components and then selected the sites that were closest to the subframe. After this investigation, it was an estimate of capital and inventory turnover on a specific date for the new changes and then could an easier comparison between the old and the new material supply system. With the results it was easy to conclude that Kanban method is a better method compared to the old system because it showed that the capital reduction decreased and inventory turnover increased for the 5 components. The lead time will also be reduced when the warehouse staff do not need to be involved in the process. It is only the workers for the manufacturing of the components and the workers for the subframe which needs to be involved in the process. The administrative leadtime will also be reduced. Further analysis can be done in a forthcoming work on more components.