Using wet plastic flakes for further processing can cause many troubles. In most processes, the water content should be very low in order to be able to do anything at all with the plastic. Furthermore, the water content causes the plastic to be heavier and can increase transport costs. For this problem, we have different solutions available to dry the wet plastic effectively.
Based on the high-speed rotating principle, the vertical centrifuge works in a similar way as the horizontal centrifuge. Except the different position of the drum as the name already reveals, the vertical centrifuge works with higher speeds and a drum that is narrower. At the end, the result is dryer than with the horizontal centrifuge but disadvantage is that the vertical centrifuge is only suitable for hard plastics.
When the material is already relatively dry, for example after it went through a centrifuge, the last part of the water can be removed with a pipeline dryer. A hot airflow blows the plastic flakes and scraps round and round through a pipeline while absorbing the water. This simple method is very effective and increases the quality of the recycled plastic eminently.
The horizontal centrifuge is a basic solution to dry any recycled plastic flakes. With its big drum, it is suitable for hard and soft plastics and for plastic film material. In a similar way as a washing machine, the perforated drum rotates with high speed and spins out the water while the flakes that are bigger than the holes in the wall of the drum remain inside the drum and come out much dryer.