Feed system provided with feed means located inside a lyophilization chamber and able at least to supply electric energy to a slider, autonomously mobile at least inside the lyophilization chamber, and to the possible other internal components which need the energy present in or associated to the slider. The feed means are positioned along the travel of the slider and cooperate with energy receiver means associated to the slider, being static at least during the loading and unloading steps of at least a loading plane.