System for inspecting and weighting objects, particularly preforms

System for automatic evaluation of preforms, said system providing an inspection system, to which preforms are supplied, a weighting system, downward the inspection system, and a selection system, downward the weighting system, said preforms being transferred from the inspection system to the weighting system with a set orientation, said system being characterized in that a support is provided downward the system for transferring performs, substantially an elongated V shaped support, having an inner groove on correspondence of V vertex, permitting contacting perform tip and stabilizing its oscillations due to the fall impact, preform resting within said groove, terminating passage from a substantially vertical position to a substantially horizontal position.