a device for producing a plastic part that has a plurality of components includes a closing unit for receiving at least one mold in which a thermoplastic molded body can be shaped or positioned , and at least one polyurethane unit for introducing a polyurethane material into a larger cavity comprising the thermoplastic molded body . at least one additional polyurethane unit is provided for introducing an additional polyurethane material having different product properties into a same or a different , larger cavity . as an alternative , the at least one polyurethane unit can be adapted for an additional polyurethane material having different product properties for introduction into the same or a different , larger cavity .