Selecting the correct capillary tube material is critical for system performance, fluid integrity, and operational longevity. In precision applications ranging from semiconductor manufacturing and medical devices to pneumatic automation, using substandard or mismatched materials leads to chemical degradation, failure, and unnecessary expenses.
LANGCHI pneumitic hose manufacturer of precision plastic tubes tailored to exact technical specifications.
What Is a Capillary Tube?
A capillary tube is a precision tube with a very small inner diameter designed to control or transport tiny volumes of liquids or gases. Due to its compact dimensions and precise tolerances, capillary tubing is widely used in industries where flow accuracy and dimensional consistency are essential.
Plastic capillary tubes are increasingly replacing traditional metal tubes because they offer excellent corrosion resistance, lighter weight, easier installation, electrical insulation, and lower production costs while maintaining excellent performance.
1. Material Quick-Selection Guide (Find Yours in Seconds)
- Extreme Chemical Resistance (Acid / Solvent): PTFE, PFA, FEP, PVDF
- Pneumatics & High Pressure (Wear & Strength): Nylon (PA6 / PA12)
- Dynamic Robotics & Automation (Flexibility): Polyurethane (PU), Silicone
- Food & Water Systems (Safety): PE, PP
- Medical & Lab Devices (Biocompatibility): Medical-grade PVC, Silicone, EVA, PTFE
2. Our Full Material Range at a Glance
We process a comprehensive portfolio of high-performance engineering plastics:
- Fluoropolymers: PTFE, PFA, FEP, PVDF
- Engineering Plastics: Nylon (PA6, PA12), PP, PE, TPEE, EVA
- Elastomers: Polyurethane (PU), Silicone, Medical PVC
Plastic Capillary Tube Material Comparison
| Material | Temperature Resistance | Chemical Resistance | Flexibility | Typical Applications |
|---|---|---|---|---|
| PTFE Tubing | Excellent | Excellent | Moderate | Chemical processing, semiconductor |
| PFA Tube | Excellent | Excellent | Good | High-purity fluid transfer |
| FEP tube | Excellent | Excellent | Good | Laboratory equipment |
| PVDF tube | Excellent | Excellent | Moderate | Chemical systems |
| PA6 / PA12 tubing | Good | Good | Good | Pneumatic systems |
| PU Hose | Moderate | Moderate | Excellent | Robotics and automation |
| PE Hose | Moderate | Good | Good | Food and water systems |
| PP tube | Good | Very Good | Moderate | Laboratory equipment |
| PVC Hose | Moderate | Moderate | Good | Medical devices |
| Silicone Hose | Good | Good | Excellent | Medical and pharmaceutical |
| EVA tube | Moderate | Moderate | Excellent | Soft medical tubing |
| TPEE tube | Good | Good | Excellent | Dynamic industrial applications |
Conclusion
Selecting the right capillary tube material is essential for achieving reliable fluid transfer, long service life, and optimal system performance. Every application has unique operating conditions, and choosing the correct engineering plastic can significantly improve efficiency while reducing maintenance and replacement costs.
At LANGCHI, we provide a complete range of custom plastic capillary tubes, including PTFE, PFA, FEP, PVDF, PA, PU, PE, PP, PVC, Silicone, EVA, and TPEE, all manufactured with precision extrusion technology and tailored to your exact specifications.
Looking for the right capillary tube for your next project? Contact our engineering team today for expert material recommendations, custom design support, and free sample consultation.
Custom Manufacturing Capabilities
- Dimensional Tolerances: High-precision control over inner diameter, outer diameter, and wall thickness.
- Extrusion Types: Micro-bore, thin-wall, and multi-lumen co-extrusion.
- Post-Processing: Custom cutting lengths, specific color matching, and specialized packaging.
- Compliance: Food-grade and medical-grade compliance meeting ISO standards.
Request Technical Support and Quotations
Submit your exact technical drawings, material requirements, and volume projections to the LANGCHI engineering team.
Services: Free engineering consultation and rapid prototype sampling.
Inquiry Requirements: Inner diameter, outer diameter, material grade, operating pressure, and estimated quantity.
