The following two parts will help you select the best extruder screen for your processes.
Welding
Your screens need to be welded properly to ensure they don’t bend, stretch or break. This type of effect can alter the opening sizes in your mesh and change your filtration results. This will also result in needing to change your screens more often.
Wire Mesh Screen
The mesh in your screen, whether single-layer or multi-layer, needs to hold up against the material you are filtering.
Opening size and weave type are also important to the quality of the screen.
Micron ratings/mesh counts vary widely depending on your desired outcome.
Square mesh is most widely used for its flow capability, but filter weaves (Dutch Twill and others) can also be used for finer filtration.
