Profile extrusion line

Model SJ-30 SJ-65 SJ-80 SJ-90 SJ-105 Screw Diameter (mm) 30 65 80 90 105 L/D Ratio 25:1 25:1 25/30:1 25/30:1 20:1 Motor Power (kW) 2.2 7.5 11 15–18.5 22 Screw Speed (r/min) 60 60 60 60 60 Production Capacity (kg/h) 5–8 40–80 80–150 150–250 220–330 Applications and Features: The single-screw plastic profile extrusion line is primarily used for manufacturing PVC, PC, PE, and other plastic profile products. The production line consists of a single-screw extruder, vacuum sizing table, haul-off unit, automatic cutter, material rack, and more. By equipping different molds, it can produce various plastic profiles such as window and door frames, container sealing strips, sheets, rods, ceiling panels, and more. This process boasts a simple workflow, high output, stable quality, and low cost. Classification and Overview of Plastic Profiles: Plastic profiles refer to extruded plastic products with non-circular cross-sections—anything other than round, square, or flat shapes, including corrugated, grooved, T-shaped, and similar forms. These profiles are typically made mainly from plastics, sometimes incorporating metal components, and find applications in construction, interior decoration, and related industries. There are two main types of plastic profiles: solid plastic profiles and composite profiles made by combining plastic with non-plastic materials. 1. Based on hardness, they can be categorized into soft profiles and hard profiles. According to the type of plastic used, they include PVC profiles, ABS profiles, PE profiles, and others, with PVC profiles being the most common. 2. Classified by cross-sectional characteristics, they fall into seven major categories: hollow tubes, hollow profiles, partitioned profiles, open-profiles, segmented profiles, inlaid profiles, and solid profiles. Extrusion Line—Plastic Profile Extrusion Line The plastic profile extrusion line is one type of plastic machinery; other lines include those for producing plastic pipes and plastic sheets. This specific line is mainly used to manufacture plastic window and door profiles, decorative panels, PVC foam profiles, and other plastic products. Based on Co-extrusion Material Forming State: According to the forming state of co-extruded materials, plastic profile extrusion processes can be divided into pre-co-extrusion and post-co-extrusion. Pre-co-extrusion involves combining two materials during their incomplete molding stages, while post-co-extrusion occurs after one material has been fully molded, followed by the addition of another material. Post-co-extrusion offers the advantage of utilizing waste materials, making it more economical. Based on Extrusion Material: Depending on the extrusion material, plastic profile extrusion processes can be classified into organic co-extrusion and inorganic co-extrusion. Organic co-extrusion includes both same-material pre-co-extrusion (e.g., blending virgin resin with recycled material) and different-material pre-co-extrusion (such as PMMA and PVC), as well as post-co-extrusion involving soft and rigid PVC. Inorganic co-extrusion encompasses aluminum-plastic composites and steel-plastic composites. PVC Window and Door Profile Extrusion Equipment: Primarily using PVC and UPVC as raw materials, this equipment produces plastic window and door profiles, decorative profiles, and more. Depending on customer needs, the line can employ either single-screw or twin-screw extruders. Both the main machine and the haul-off unit feature variable-frequency drives, enabling stepless speed adjustment. Temperature control is managed via precise temperature controllers, while the vacuum sizing table utilizes a water-circulation sealed vacuum system equipped with centralized water supply and quick-change connectors, allowing easy replacement of various sizing molds. Sizing tables are available in lengths of 4 m, 6 m, 8 m, and other specifications. The haul-off unit employs a tracked-type design, ensuring stable extrusion without deformation. Its cutting mechanism features synchronized tracking, resulting in clean cuts with no chipping. This complete set of equipment stands out for its low energy consumption, stable performance, and high efficiency. Profiles produced by this system exhibit attractive appearances, excellent pressure resistance, superior light stability and thermal stability, minimal dimensional changes, and enhanced resistance to aging.