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The Precision Sheathed Spring Tube is a flexible yet durable metal assembly composed of a stainless steel spring combined with a high-precision inner tube. It provides exceptional resistance to bending, kinking, and torsion while ensuring stable internal passage for wires, guidewires, fluids, or mechanical shafts.
Manufactured using precision stainless steel tubing, this component guarantees high dimensional accuracy, smooth internal surfaces, and reliable performance, making it ideal for medical devices, industrial automation, robotics, and aerospace applications.

Made from 304 / 316L stainless steel, offering:
Superior Corrosion Resistance – withstands moisture, chemicals, and sterilization agents.
High Mechanical Strength – resists pressure, fatigue, and repeated bending.
Excellent Biocompatibility – suitable for medical and human-contact applications.
Wide selection of precision tube sizes (OD, ID, wall thickness).
Length, sheath structure, and connection ends can be fully customized.
Tolerance control up to ±0.01 mm for ultra-precise applications.
Supports cutting, bending, welding, laser drilling, and threading.
Compatible with assembly for connectors, fittings, and threaded joints.
Safe for both medical-grade and industrial-grade use.
Polished or passivated surface – clean, wear-resistant, and anti-bacterial.
Integrated Protection & Flexibility
Prevents kinking or collapse during dynamic motion.
Stable Transmission Channel
Ideal for wire, guidewire, sensor, or fluid protection.
Resistant to Extreme Conditions
Performs well in high temperature, high pressure, and corrosive environments.
Long Service Life
High fatigue resistance for continuous bending and repetitive movement.
| Industry | Typical Use |
| Medical Devices | Endoscopic tools, catheter protection, surgical instruments |
| Industrial Automation | Sensor cable shielding, robotic arm protection |
| Aerospace | Avionics wiring conduit, microfluidic passage |
| Automotive & Robotics | Brake line protection, flexible motion systems |
| Laboratory Equipment | Precision gas/fluid transmission channels |
To ensure long-term performance of precision stainless steel tubing, please follow these recommendations:
Store in a dry, dust-free, and well-ventilated environment.
Avoid contact with strong acids, alkalis, or corrosive chemicals.
Use moisture-proof packaging or vacuum sealing for long-term storage.
Clean with neutral, non-chlorinated agents; avoid strong acids or steel brushes.
Prevent excessive bending or compressive load to maintain flexibility.
Keep tube surfaces free from debris and contaminants.
Check for cracks, deformation, or surface damage before installation.
Ensure connectors or fittings are securely positioned and undamaged.
Q1: Can the Precision Sheathed Spring Tube be customized?
Yes, dimensions such as OD, ID, length, and connector type can be fully customized.
Q2: Is it suitable for medical applications?
Yes, 316L medical-grade stainless steel ensures excellent biocompatibility for medical use.
Q3: What makes it better than traditional flexible hoses?
It does not kink or collapse and offers superior stability, making it ideal for precision tube applications.
Q4: How to prevent rust?
Stainless steel is corrosion-resistant, but proper cleaning and dry storage are still recommended in harsh environments.
Get in touch with our engineering and sales teams.
We will help you to find the best solution.