The granulated raw material is transferred to the feeding section by the vacuum system and mixed with the desired amount and ratio of dye by the dosing unit and fed to the extruder. The extruder is the most important part of filament yarn production. This part melts the primary polymer chips and additives and ensures that they reach a viscosity that can pass through the nozzles. It melts the raw material sent to its body under high pressure at 235 degrees. The temperature required for the polymer chips in the extruder to melt may vary depending on the type of fiber used. The extruder section contains the barrel, hopper, screw in the barrel, motor and heaters that provide screw movement.