Qualification of serial production of jigs for the universal adjustment platforms for the High luminosity project

As part of the High Luminosity LHC (HL-LHC) project, a modular platform with 6 degrees of freedom, the Universal Adjustment Platform (UAP), has been developed. This plat- form, based on standardized micrometric adjustment jigs, enables the precise alignment of accelerator components weighing up to 2000 kg. Following the successful valida- tion of a fully functional prototype, serial production of the standardized components began in 2025. To ensure qual- ity and to meet the stringent requirements, a validation test sequence—based on a specially designed test bench—was established. This sequence allows the verification of the series production (140 vertical jigs and 70 radial jigs) includ- ing their micrometric backlash and behavior under nominal load. This paper presents the testing methodology for such a qualification and the results obtained.