Leak testing machine for two parts. This machine is designed to load two parts at a time and subject them to leak testing; supplied by two automatic bolting machines of steel plates to the crankcase (also manufactured by Somabe). If the part is correct, it is marked by a micro-percussion unit, and the result is saved on the PC panel of the pushbutton unit. The following data are saved: the marking text and result of the leak tester. Each station saves its results in a table of a SQL Server database.