Plastic extruders melt plastic granules and transform them into various products.
Extruders are just one component of a complete system which combines with several pieces of equipment which are designed to manufacture a particular end product.
Plastic polymers are fed into the Plastic Extruder barrel and processed on a single or double screw. The polymers are heated up to about 400°F when the extruder transports, melts, and mixes the granules simultaneously. At the end of the first stage, the melted mass will be pushed into the die, which shapes the molten plastic into the desired shape.
After passing through the die the molten plastic is pulled through a calibration system, which cools the part under vacuum.
The finished product is then cut to the desired length.