A Plastic Extruder Machine is a device which pushes or pulls a material through a shaped die to form a continuous length of product with a preset cross section.
The raw material (polymer) in the form of granulates, is gravity fed into the hopper and through the feed throat, drops on a rotating screw. As the Plastic is conveyed through the barrel the channel or thread of The Screw decreases, thus compressing The Plastic.When the plastic melt reaches the end of the screw the plastic melt is well mixed and pushed through a screen pack, supported by a breaker plate, filtering contaminants and removing the materials rotational memory.
As the plastic melt passes through the die, it acquires the die hole shape and leaves the Twin Screw Extruder. The Extruded product is called Extrudate.