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However, nowadays, the plastics compounding and extrusion industries are being affected by high resin and labor costs and the demand and need for superior product performance and consistent quality. Therefore, it is important that suppliers and producers of many polymer products such as film, sheet, profile, tubing, and pipe avoid inconsistencies and flaws in the products they produce. This is the only way by which they could ensure their survival in the growing market of the polymer industry. Unfortunately, even when all of the operational parameters in an extrusion process such as pressure, temperature, screw rotation rate, and other factors are taken to utmost control and monitoring, there are still possibilities that the product would fail the set specifications and may exhibit inconsistencies. An extruder is a machine aimed to produce more or less continuous lengths of plastic sections. It is composed of a tubular barrel, usually electrically heated.