Homogeneous material distribution is very important for proper separation in these plants. The material fed from the ballistic separator to the optical separator is sorted by means of the optical separator.
Generally, in the first optical separator, non-LDPE material is blown off and taken out of the system. The remaining material is fed into a second optical separator, depending on the material input composition, divided into two parts by blowing, as transparent LDPE and colored LDPE.
However, in this last part, different designs can be made according to the needs of the following recycling plant by making various variations according to the needs.
LDPE film is a very difficult material to be sorted by hand, the average staff can sort about 30 kg film in one hour. Therefore, in order to reach high tonnages, there is a serious need for personnel and they have to know the material. However, in the automated plant, it is possible to reach high capacities and high quality levels with low personnel numbers.