Plastic Profiles - Extrusion Process

Plastic Profile Extrusion - The process of making continuous shapes of plastic (not including sheets and tubes) by extrusion.

Plastic Profile Extrusion is a manufacturing process through which plastic is melted, shaped into a continuous profile, and cut to length. This process is used in the production of a wide variety of shapes and plastic channels.

In this process, raw plastic is fed into a heated extruder cavity or cylinder. Typically, the raw plastic is in bead form and may be mixed with colorants before the plastic profile extrusion process begins. Once inside the machine, the plastic beads and any accompanying material move through an opening in the extruder cavity towards a screw mechanism. The screw rotates, forcing the plastic material to advance through the cavity.

Inside the cavity, the temperature is very high, often reaching about 400°F (200°C), which melts the plastic. When the molten plastic reaches the front of the cavity, it moves away from the screw and journeys through a special screen designed to filter out any contaminants. The molten plastic then moves into a die which is responsible for giving the molten plastic its profile (shape). After cooling, the product is cut to length, spooled, or coiled, and finally made into a distinctive plastic channel and profile.

Image of plastic profile extrusion manufacturing

Jifram extruded plastic profiles. Plastic Profile Extrusion is a manufacturing process through which plastic is melted, shaped into a continuous profile, and cut to length. This process is used in the production of a wide variety of shapes and channels.

 
Image of the plastic profile extrusion process

In this process, raw plastic is fed into a heated extruder cavity or cylinder. Typically, the raw plastic is in bead form and may be mixed with colorants before the plastic profile extrusion process begins.