TEFLON HIGH-TEMPERATURE EXTRUSION LINE
1. Applicable Fluoropolymers
FEP (Fluorinated Ethylene Propylene)
PFA (Perfluoroalkoxy Alkanes)
ETFE (Ethylene Tetrafluoroethylene)
PTFE (Polytetrafluoroethylene) – for paste extrusion
2. Line Configuration (Typical)
| Unit | Description |
|---|---|
| Pay-off Stand | Motorized or dancer-controlled type for smooth feeding of conductor (copper, silver-plated, etc.) |
| Preheating Oven | Removes moisture and preheats conductor for better adhesion of insulation |
| High-Temperature Extruder | Barrel & screw specially treated for fluoropolymer resistance; temperature up to 450–500°C |
| Precision Crosshead Die | Ensures concentric and uniform insulation layer with fine thickness control |
| Curing Oven (Optional) | High-temperature sintering (for PFA or special formulations) |
| Cooling & Water Trough | Multi-section cooling for gradual temperature reduction without internal stress |
| Diameter Gauge | Laser diameter control with closed-loop feedback for consistent insulation thickness |
| Capstan / Caterpillar | Servo motor-controlled pulling to ensure smooth line speed and tension |
| Take-up Unit | Motorized drum take-up or precision traverse take-up depending on application |
3. Key Features
| Feature | Details |
|---|---|
| Temperature Resistance | Extruder & oven designed for continuous operation up to 500°C |
| Chemical Compatibility | Corrosion-resistant components to handle aggressive fluoropolymers |
| Precision Control | Servo-driven systems with PLC & HMI for accurate synchronization |
| Application Flexibility | Supports single-layer, dual-layer, or shielded high-temp cable extrusion |
| Cleanroom Option | For medical-grade FEP tubing and ultra-clean insulation production |
4. Technical Specifications (Example for FEP Cable)
| Parameter | Value |
|---|---|
| Conductor Size | 0.1 – 6.0 mm² |
| Insulation Thickness | 0.1 – 1.0 mm |
| Line Speed | 50 – 200 m/min (depending on size and material) |
| Extruder Size | 30 mm – 65 mm screw diameter |
| Max Temp | 450–500°C barrel zone, 600°C die zone |
| Power Supply | 380V / 3-Phase / 50Hz or customized |
5. Applications
Aerospace & military wiring harnesses
Medical tubing (catheters, probes)
High-temperature sensor wires
Industrial automation & robotics wiring
Automotive engine compartment cables
