The materials are first carefully selected and separated by color and type. That being done, the bigger materials are reduced in the shredder. After this reduction, possible ferrous parts are separated by a metal separator using magnetism. The shred plastics then will be inserted in the grinder, where it gets a second size reduction until it reaches the size required. This regrind is separated from dust by gravity and with a third metal separation system ferrous and non-ferrous metals are removed, making the regrind free of dust and metals. After a visual check, the regrind is packed and transported to the customer.