Especially when materials in bales must be worked, it’s suggested to use, even combined with other pre-treatment machines, a PREFLOATATION TANK. It is the ideal machine for eliminating, by using the specific weight of the materials themselves, all those polluting elements which can, not only affect the quality of the product, but even cause damages on the following fast machines in the plant (striking example the presence of heavy metals inside the bales).
By using an ELLIPTIC COMB instead of the classical rolls of standard floatation tanks avoid jamming and blocks caused by the material, considering that it can usually be passed into the tank without any previous substantial shredding treatment.