Beisu Machine

 How to Select the BEISU Extruder for Sealing Strip Production First, Select the Screw Type: Matching Raw Material Characteristics The mainstream raw materials for sealing strips fall into three categories, each corresponding to a specific screw configuration: **EPDM and Silicone Rubber:** Best suited for *vacuum-vented, cold-feed single-screw extruders*. These machines can directly process room-temperature rubber compounds—eliminating the need for a preheating step—and produce bubble-free products, making them ideally suited for the processing requirements of rubber-based sealing strips. **PVC, PP, PE, and Other General-Purpose Plastics:** Best suited for *standard single-screw extruders*. For small cross-section profiles, a smaller single-screw extruder helps avoid waste of resources and energy while fully meeting the extrusion molding requirements for plastic-based sealing strips. **High-Filler Formulations, Modified Plastics, or Wood-Plastic Composites:** Best suited for *conic...