Key Capabilities
- Suitable for various types of materials, including PVC, EVA, PP, PE, and other pelletized polymers.
- When the tube wall and spiral reinforcement use the same material, production requires only one extruder. The extrusion line can be equipped with a dual-extruder setup for coextruding two different materials.
- Spray cooling continues until the rigid spiral is fully solidified through to the core, before the tubing leaves the tank.
- The screw and barrel are made from 38CrMoAlA nitrided steel. S136 corrosion-resistant mold steel with a mirror finish is used for the extrusion head and die.
- Each heating zone has independent closed-loop control, with a temperature accuracy of ±1°C.
- Dual-extruder production allows separate temperature settings for each material, which keeps the spiral evenly covered and prevents it from shifting off-center.
Main Components
Two Single-Screw Extruders
Extrusion Die
Spiral Forming Unit
Spiral Tubing Forming Die
Spray Cooling Tank
Photoelectric Sensor-Controlled Cutter