By recycling old products mainly the elements, which are contained in large amounts in the product, are regained. Taking metal coated Waste Electrical and Electronic Equipment (WEEE) as an example, this is the plate of the component cover, which is made of steel or aluminum, the included plastic, the printed circuit board’s material and copper. Those materials, which are contained on the printed circuit board belonging to the area of specialty metals such as tantalum, indium, palladium etc., cannot economically be extracted from a shredder plant’s output mass flow. To solve this problem, a new approach for an automatic decomposition of metal coated components is introduced based on the process principle of the roll crusher. For finding a solution the systematic design approach and a first pilot plant’s results are presented. Based on these results, conclusions for future developments are derived.