Plastic Extrusion

Plastic extrusion is the process of forming plastic into a continuous profile with a desired cross-section, usually followed by a cutting process to separate into individual parts. Molten plastic is forced into an extruding die, which forms the plastic into a desired profile, and the plastic cools and solidifies as it passes through the die. This process goes on continuously and is ideally suited for long or thin parts and does not require individual mold cavities like in injection molding. The tooling for plastic extrusion is much cheaper than for injection molding or other plastic manufacturing styles and the process is economic for small or medium batch sizes.