Single Crystal Sapphire Capillary Tube OD5mm ID4mm L200mm | High Purity Monocrystalline Sapphire Bore Tube
- Model
- FG-tube-20
Item specifics
- Material
- Single Crystal Sapphire (Al₂O₃), 99.99% High Purity
- Outer Diameter (OD)
- 5 mm
- Inner Diameter (ID)
- 4 mm
- Surface Finish
- Precision polished inner bore & outer surface
- Customization
- Custom OD, ID, length, edge chamfer, tolerance available
- Key Features
- Wear resistant, corrosion resistant, high temperature stable, non-porous, gas tight
- Application
- Analytical instruments, microfluidic systems, sapphire piston assemblies, semiconductor, medical dia
- MOQ
- Sample order acceptable, bulk OEM available
- Lead Time
- Sample:7–14 working days; Mass production: depends on quantity & machining complexity
Review
Description
Single Crystal Sapphire Capillary Tube
OD5mm ID4mm L200mm | High Purity Monocrystalline Sapphire Bore Tube
Felix Glass manufactures high-purity single crystal sapphire capillary tubes (monocrystalline Al₂O₃). This standard part: OD 5 mm, ID 4 mm, length 200 mm. Sapphire’s Mohs 9 hardness delivers outstanding wear resistance, excellent chemical inertness and thermal stability for high-pressure, corrosive and high-temperature precision systems. Custom dimensions, tolerances and end-face machining available for your engineering requirements. Request datasheet or quotation for samples & bulk orders.
Request Quotation Request PDF Datasheet
Your Sapphire Capillary Tube Engineering Contact
Direct communication with Felix Glass sales & engineering team for precision sapphire bore tube OEM projects.
James Fu
International Sales Director
James supports global analytical instrument, semiconductor and industrial OEM customers for custom single crystal sapphire capillary tubes. We handle custom bore machining, tight tolerance control, edge chamfering and polished inner bore processing.
Our team assists you from drawing review, artwork confirmation, prototype sampling through large‑volume mass‑production.
Sapphire Capillary Tube Product Overview
Our single crystal sapphire capillary tubes are precision machined from high purity monocrystalline sapphire (Al₂O₃, 99.99% purity). Unlike polycrystalline ceramic or quartz tubing, single crystal sapphire offers zero porosity, superior gas tightness, extreme hardness and long service life under harsh operating environments.
This standard specification sapphire bore tube: Outer Diameter 5 mm, Inner Diameter 4 mm, Length 200 mm. We manufacture custom sapphire capillary tubes with custom OD, ID, length, edge chamfering and polished bore finish for instrumentation, fluid delivery and piston assemblies.
Standard Sapphire Capillary Tube OD5mm ID4mm
Monocrystalline sapphire bore tube, 99.99% purity, polished inner & outer surface for fluid delivery systems.
Precision Polished Inner Bore
Smooth polished bore reduces fluid friction, tight dimensional tolerance for high pressure fluid channel applications.
Sapphire Tube for Piston & Fluid Assemblies
Wear resistant sapphire tubing for sapphire piston rod, analytical and microfluidic instrument components.
Key Advantages (Why choose sapphire over quartz / ceramic?)
Solve common industry pain points: abrasion, corrosion, high temperature leakage, poor tolerance and short service life.
Mohs 9 Extreme Hardness & Wear Resistance
Superior scratch & wear resistance, far longer service life than quartz or polycrystalline ceramic tubes under cyclic friction.
Excellent Chemical & Thermal Stability
Resist strong acids, alkalis, solvents & plasma corrosion; wide operating temperature range and good thermal shock resistance.
Tight Tolerance & Non‑Porous Structure
Precision OD/ID tolerance, smooth polished inner bore, low fluid friction. Zero porosity for reliable gas/liquid sealing with no leakage.
Technical Specifications
Standard sapphire capillary tube specs, custom dimension, tolerance and machining available per engineering drawings.
| Engineering Parameter | Specification |
|---|---|
| Material | Single Crystal Sapphire (Al₂O₃, 99.99% high purity) |
| Outer Diameter (OD) | 5 mm |
| Inner Diameter (ID) | 4 mm |
| Length | 200 mm |
| Crystal Type | Monocrystalline Sapphire |
| Surface Finish | Precision polished bore & outer surface |
| Customization | Custom OD, ID, length, edge finish, tolerance available upon drawings |
| Hardness | Mohs 9 |
| Key Properties | Corrosion resistant, high temperature stable, non‑porous, gas tight |
Sapphire VS Quartz / Ceramic Capillary Comparison
Compare performance difference for high pressure, corrosive and high-temperature engineering selection.
| Performance Item | Single Crystal Sapphire Capillary | Quartz / Polycrystalline Ceramic Tube |
|---|---|---|
| Hardness & Wear Resistance | Mohs9, Excellent wear resistance, ultra long service life | Lower hardness, easy to wear under cyclic friction |
| Structure | Non‑porous single crystal, zero leakage risk | Ceramic has porosity; quartz prone to thermal cracking |
| Chemical Resistance | Resist strong acid, alkali, plasma & solvents | Limited resistance against strong corrosive media |
| High Pressure Performance | High mechanical strength under high pressure loading | Lower pressure limit, higher risk of rupture |
| Typical Application | Analytical instruments, microfluidics, semiconductor, high‑end piston assemblies | Low pressure, mild environment, low cost applications |
Typical Applications
Sapphire capillary tubes are widely adopted for precision industrial and laboratory equipment:
Analytical Instruments & Fluid Delivery
Solution: Precision sapphire bore tube with polished inner surface
Application: Analytical instruments & high-pressure fluid channels & microfluidic systems.
Benefit: Stable fluid transmission, tight tolerance, no contamination from material corrosion.
Sapphire Piston & Piston Rod Assemblies
Solution: Wear resistant single crystal sapphire tubing
Application: Sapphire piston / piston rod assemblies for high-cycle precision equipment.
Benefit: Mohs9 hardness minimizes wear, maintains tight clearance over long operation cycles.
Semiconductor & High Temp Corrosive Machinery
Solution: High purity corrosion resistant sapphire capillary tube
Application: Medical diagnostic equipment, laser measurement, semiconductor & plasma processing equipment.
Benefit: Stable performance under high temperature, plasma and aggressive chemical environments.
Packaging & Delivery
Safe export packaging to avoid chipping, scratching or breakage during international shipping.
Individual Shock Protection
Each sapphire capillary is individually wrapped and seated in shock-resistant foam inserts to prevent surface damage.
Rigid Export Carton Packing
Foam protected parts packed into solid hard cartons with anti-vibration padding for overseas transport.
Multiple Shipping Options
We support DHL, FedEx, TNT and sea freight to match your sample or bulk shipment schedule.
Sample & Bulk Acceptance
Small sample orders and mass production batches are both accepted for prototype validation and commercial projects.
Felix Glass Manufacturing Advantage
Felix Glass is a professional manufacturer of custom optical sapphire components and precision optical glass parts. Every sapphire capillary undergoes strict dimensional inspection & visual QC before shipment. We support drawing-based custom development, rapid sample production and stable mass supply. Send your technical drawing to get your custom quotation and free datasheet.
Raw Material Inspection
Verify 99.99% high purity single crystal sapphire blank before precision machining.
Precision Bore & OD / ID Machining
Ultra-precision internal & external grinding to guarantee tight dimensional tolerance for sapphire capillary.
Surface & Edge Finishing
Inner bore polishing, edge chamfering, remove micro defects to eliminate stress concentration.
Final Multi‑Item QC Inspection
Dimensional metrology, visual surface inspection and leak test check before packing and shipment.
Certification & Technical Documents
Felix Glass provides supporting compliance documents for global industrial & instrument OEM customers.
Specification Confirmation
Available When Agreed
Available When Agreed
Compliance Document
Upon Customer Request
Frequently Asked Questions About Sapphire Capillary Tube
Can you customize sapphire capillary tubes with non-standard OD, ID or length?
Yes. We custom machine sapphire bore tubes according to your drawings, including special inner/outer diameter, length, chamfer and end face processing.
What is the lead time for samples and mass orders?
Sample order lead time: 7–14 working days. Mass production lead time depends on quantity and machining complexity. Contact us for exact schedule.
How does sapphire capillary compare to quartz or ceramic capillary?
Sapphire (Mohs9) is much harder, non-porous, higher pressure resistance and better chemical stability. It lasts far longer in high wear, corrosive and high-temperature environments than quartz and polycrystalline ceramic tubing.
Can I get samples for performance testing?
Yes, samples are available for evaluation. Please send your requirements for sample pricing and quotation.
To dive deeper into material performance, comparison data and application selection guidance, read our detailed article: Sapphire Capillary Tube: Complete Material & Application Guide.
Related Optical Sapphire Product Solutions
Explore other custom sapphire optical components manufactured by Felix Glass.
Request Sapphire Capillary Tube Engineering Evaluation
Submit your dimension specs, CAD drawing or machining requirements. Our engineering team will evaluate and quote for your single crystal sapphire capillary tube project for analytical instruments, fluid systems and industrial equipment.
