Why conical twin-screw extruder the preferred choice for PVC/SPC/WPC processing?
Core Processing Performance Advantages of BEISU Conical Twin-Screw Extruders : **Naturally Suited for Heat-Sensitive, High-Viscosity Materials:** Featuring a unique conical screw structure combined with a counter-rotating design, the system maintains low circumferential screw speeds and minimal shear rates. Consequently, heat generation during processing is significantly lower than that of parallel twin-screw extruders. This fundamentally prevents the thermal degradation—caused by overheating—often seen in heat-sensitive materials like PVC. This not only guarantees superior product performance but also allows for a reduction in the amount of heat stabilizers required, thereby helping enterprises lower raw material costs. **Dual Compression Ratio for More Thorough Plasticization:** The conical structure generates a dual compression ratio through the simultaneous effects of a "gradually increasing screw diameter" and a "gradually decreasing screw channel depth." The o...