An insulation extrusion production line is a highly efficient industrial system designed for the continuous manufacturing of insulated materials used in electrical, thermal, and industrial applications. The term “90 45” typically refers to the screw diameter configuration or machine specification, indicating a stable and medium-to-high capacity extrusion setup suitable for producing consistent insulation layers with precise control over output quality. This type of production line is widely used in the processing of polymer materials such as PVC, PE, PP, XLPE, and other thermoplastic compounds that are commonly applied as insulating coatings or layers.The production process begins with raw material feeding. Plastic pellets or compounded resin are automatically loaded into the hopper, where they are conveyed into the extruder barrel. Inside the barrel, the material is heated, compressed, and mixed by the rotating screw. The screw and barrel design play a crucial role in ensuring uniform plasticization, stable melting, and efficient output. A 90 45 extrusion configuration generally provides strong processing capacity while maintaining accurate temperature and pressure control, which is essential for producing insulation products with reliable performance.During extrusion, the molten material is pushed through a die head that determines the shape and thickness of the insulation layer. Depending on the final product, the line may be equipped with various die systems to produce wire insulation, cable jackets, pipe insulation, or profile coatings. Advanced control systems allow operators to adjust extrusion speed, temperature zones, and material flow in real time, ensuring that the insulation layer remains uniform and free of defects such as bubbles, cracks, or uneven thickness.After the material exits the die, it enters a cooling and sizing section. This stage is important for stabilizing the extruded shape and ensuring dimensional accuracy. Cooling may be achieved through water tanks, air cooling, or a combination of both, depending on the material being processed. Proper cooling helps prevent deformation and improves the mechanical strength of the finished insulation product. In many lines, a haul-off unit is used to pull the material through the system at a constant speed, synchronizing with the extrusion output to maintain consistency.The production line also includes a cutting, winding, or coiling unit, depending on the application. For wire and cable insulation, the finished product may be wound onto reels or spools. For other insulation products, it may be cut to required lengths. Modern lines often incorporate automatic measuring and inspection systems to monitor product quality and reduce manual labor. These systems enhance productivity, lower waste, and ensure that the final insulation meets technical standards.A 90 45 insulation extrusion production line is valued for its versatility, reliability, and energy efficiency. It can support a wide range of insulation materials and product specifications, making it suitable for different industries. With precise control, stable operation, and strong production capacity, this type of line provides an effective solution for manufacturers seeking high-quality insulation products with consistent performance and long service life.