Extrusion International 6-2017

25 Extrusion International 6/2017 CRM also serves as data source for the creation of event diagrams for the different types of devices. The event dia- gram is a graphical illustration for quick and clear visual- ization of events and their chronical order. Furthermore, the event diagram provides details concerning the type of individual events for a certain device type. An event diagram has a horizontal (x) and a vertical (y) timeline. The x-timeline shows the delivery date and the y-timeline shows the event date. The diagram indicates all known downtimes of one device type up until time of creation as shown in the example picture 1 ‘Product A’. Events are being counted, which directly led to a down- time of a device. Deliveries of all devices are displayed as crosses (1) on the diagonal line of the diagram. On the vertical line above each delivered device its life span can be seen. In event of failure, a certain symbol is noted on the vertical above the device, which gives information about the reason of the failure. In order to display device downtimes, symbols are used for hardware events (∆), software events (◊) and others (x) (e.g. production errors, faulty deliveries, etc.). The event diagram as shown in picture 1 primarily serves to find out, which event types had occurred. It also shows if events of one device occurred immediately after deliv- ery or at a later date. When certain events accumulate to a cluster above a certain delivery date, meaning events, which had not occurred before to this extend, this can indicate that the production process was not controlled well at that time, or else, sourced materials had caused a higher failure rate. Furthermore, event diagrams for certain failure types are created and differentiated according to the differ- ent components to collect further details of the device events. This includes, for example, diagrams which are only referring to device events where hardware compo- nents contributed to a failure rate. All other failure types (mechanical failures, software failures, etc.) are shown in a separate diagram. In this way, detailed information is given about which component relates to the documented events. The second factor, which is incorporated into the cal- culation of the availability, is the Mean Time To Repair (MTTR). This is calculated from the time that is needed to put the device and the system back into operation in the event of failure. Thanks to the quality management and the technical innovations, which render maintenance of SIKORA devices almost unnecessary, very high availability values of up to 99.98 % are reached. For a continuous quality improvement, internal and ex- ternal employee training is carried out at SIKORA. Fur- thermore, cooperations with machine manufacturers as well as customers are established in order to respond to global benchmarks in the trade and to further optimize processes. “A sustainable quality management requires clear, transparent processes and a good communication”, explains Heel. “Feedback from employees and customers in particular are crucial for a successful quality manage- ment system”, the Quality Manager explains further. “With the improvement of our operation processes ac- cording to the requirements of our QMS, we do not only meet legal standards but also achieve a high process reli- ability and, simultaneously, the highest customer satisfac- tion”, says Heel. www.maag.com GEAR PUMPS, FILTRATION, PELLETIZING AND PULVERIZING SYSTEMS MAAG – 4 STEPS AHEAD FOR YOUR SUCCESS SIKORA AG www.sikora.net