Plastic Extrusion

Custom Plastic Extrusion Services

High Quality, Low Cost Custom Plastic Extrusions

What is Plastic Extrusion?

Plastic extrusion turns thermoplastic granules into a continuous length of plastic stock with a consistent cross-section. During manufacturing, a hopper feeds granules into a heated rotary screw, much like in plastic injection molding. The heated auger forces thermoplastic molecules to rub against one another, increasing its pressure and temperature until it becomes molten and can easily flow. At this point, the molten plastic is pushed through a filter to prevent contaminants and through a die shaped to the extrusion cross section to ensure uniformity. The extrusion is pulled at a constant rate out of the die, cooled (typically in water), and cut to standard lengths for sale and distribution. 

Plastic extrusion and plastic tubing can have an enclosed profile of plastic that generally resembles an open cavity. The inner cavity of the tube, also known as a lumen, is contained within the profile and can be split into several lumens to divide the interior space further while keeping consistent wall thicknesses. At Liquitac, we can provide plastic extrusions with up to 4 lumens. Plastic extrusions are a vital aspect of nearly every industry, including construction, utilities, telecommunications, and various other applications.

Advantages of Plastic Extrusion

Creating custom plastic extrusions with Liquitac allows designers to utilize a custom profile and colors to make the exact plastic profile needed for your intended uses.