The automatic plate changeover system allows production codes to be changed in a cycle time (33 sec). This plant, occupying very little space, guarantees a high degree of efficiency. The plate holders to be fitted are positioned beforehand on one of the system’s rollerways by the operators in charge. When the code is changed the operators activate the automatic plate changeover system via a control panel which, without interrupting the flow of the flasks, replaces the two plate mounts previously used with another two. The system improves plant output, eliminating down time proving necessary in the past for plate changeover, and the quality of the product. The automatic plate changeover process has made the foundry more competitive, also in the production of small lots