a system for collecting and recycling used containers made from metal and plastic materials , having two different operative cycles for processing the containers in a closed cubicle compartment provided with two openings for introducing containers while pre - separating the plastic from the metal containers ; lower doors provide access to the cubicle for removal of processed containers , a gate including a central opening for receiving the neck and only allowing passage of the plastic container sensed by a neck sensor and for operating an electrically operated piston - cylinder assembly to operate the gate and permit the entire plastic bottle to be conveyed to a first roller set for squeezing thereof including intermediate rollers positioned between two squeezing rollers , the intermediate rollers having different diameters for reducing the size of the container , and the metal container is also conveyed to a second set of squeezing rollers and both types of containers pass a sensor for counting the number thereof , the second set of rollers includes coaxial rollers which turn simultaneously with the first set of squeezing rollers , and a sensor capable of recognizing the material type for authorizing payment .