Extrusion Line for PA66 Thermal Break Strips | POLYWELL Solutions

An extrusion line is a coordinated production system designed for the continuous fabrication of plastic products with a constant cross-section. It integrates a sequence of specialized machinery that performs a series of operations in a tightly controlled manner. The process initiates with the preparation and feeding of polymer resin, often involving dryers to remove moisture that could cause defects. The material then enters the extruder, where it is melted, mixed, and pressurized. The homogenized melt is forced through a precision-engineered die that defines the product's geometry. The subsequent phase is critical: the hot, soft extrudate is passed through a calibration device that uses vacuum, pressure, and cooling to lock in its final shape and dimensions. It then travels through a cooling tank for complete solidification. A caterpillar haul-off provides the necessary tractive force, and its speed must be perfectly synchronized with the extruder's output to prevent stretching or compression of the product. The line is terminated by a cutting or coiling unit, such as a traveling saw or a spooling machine, which packages the product. The sophistication of a modern extrusion line lies in its automation and process control, with sensors and computers monitoring key variables like temperature, pressure, and dimensions to ensure consistent, high-quality output with minimal waste.