Plastic extruder screens are used to filter out impurities from the plastic melt during the extrusion process

Plastic extruder screens are used to filter out impurities from the plastic melt during the extrusion process. The screen is placed in the extruder barrel or at the die entrance, and acts as a barrier between the plastic melt and the die. These filters are made from stainless or mild steel mesh and are typically constructed in one of the 3 styles shown below.

Reclamation of Plastic Waste
The recycled plastic recovered from post-consumer waste is in ever increasing demand. This is due in part to the costs of landfill and the consumers’ desire for more eco-friendly products. The new plastic ‘raw’ material is gained by heating waste plastic and passing it through an extruder screen filter within a plastic extrusion machine. The extruder screen filter removes contaminants such as paper, allowing the clean recycled plastic to be collected at the end of the process. This can then be manufactured into a new product which has reduced the negative impact of using new plastic material.

Blown Film Extrusion
Extruder screen filters are used in the production of polythene bags, waste sacks and plain ‘cling’ film to name but a few. The wire mesh extrusion filters are an essential part of this process as they remove any remaining impurities in the plastic so that the end product does not have any flaws in it.