I. Equipment Overview & Core Functions
Medical pipe extruder production line are precision plastic processing systems designed for producing catheters, oxygen tubes, drainage tubes, and other medical devices. Core objectives include:
Precision control of temperature/pressure for ISO 13485 compliance
Ultra-tight tolerances (±0.02mm dimensional stability)
Biocompatibility and sterile manufacturing
II. Equipment Structure & Key Technologies
1. Main System
Screw & Barrel:
Nitrided alloy steel (38CrMoALA) or quenched steel (9Cr18MoV)
Compatible with medical-grade PVC, PP, PE, PU
Drive System:
Servo motor + precision frequency converter
<1% extrusion speed fluctuation
2. Die & Flow Channel Design
S136 tool steel molds with mirror-polished channels
Multi-lumen dies for dual-color/multi-channel tubes (e.g., triple-lumen venous catheters)
3. Cooling & Sizing System
Closed SUS304 stainless steel water tanks with vacuum calibration
Hermetically sealed blow-dry units preventing water residue (cleanroom-compatible)
4. Haul-off & Cutting System
Servo-driven multi-V-belt haul-off (≤0.1mm synchronization error)
PLC-programmed rotary cutters (±0.5mm length tolerance, burr-free)
III. Materials & Process Characteristics
Materials
USP Class VI certified polymers: PVC (transparent O₂ tubes), PP (infusion tubes), PU (urinary catheters), silicone
Specialty compounds: Antibacterial PE, radiopaque composites
Process Control
Zoned temperature profiles:
Feeding zone: 185-195°C
Compression zone: 180°C
Metering zone: 170-175°C
Melt gear pumps reducing pressure fluctuations by 70-90%
IV. Quality Control & Certification
Real-time monitoring:
Laser micrometers with closed-loop adjustment
SPC (Statistical Process Control) for batch consistency
GMP-compliant environment:
HEPA filtration
Positive-pressure dust prevention
V. Key Applications
Clinical Therapy: Nasal cannulas, anesthesia tubes, central venous catheters
Diagnostics: Hemodialysis tubes, microfluidic chips
Surgical Tools: Laparoscopic trocars, endotracheal tubes
VI. Industry Trends
Smart Manufacturing: IoT integration for remote diagnostics
Miniaturization: Sub-0.5mm catheters for minimally invasive surgery
Sustainability: PLA biodegradable materials + 3D printing hybridization
Conclusion
Medical pipe extruders merge precision engineering, material science, and automation to meet stringent medical safety requirements. Future advancements will focus on eco-friendly customization and micro-scale production capabilities.
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