Sapphire Capillary Tube – Ultimate Precision and Reliability

Sapphire capillary tubes are premium microtubes manufactured from single-crystal sapphire (Al₂O₃), a material renowned for its exceptional hardness, optical clarity, and chemical resistance. Compared with conventional glass or quartz tubes, sapphire offers superior durability and performance, making it the preferred choice for industries that demand both extreme precision and long service life. We make the sapphire tube.

Outstanding Advantages

  • Unmatched Mechanical Strength
    Sapphire is second only to diamond in hardness (Mohs 9), ensuring outstanding wear resistance and durability under high pressure and demanding conditions. This significantly extends the service life compared to traditional materials.

  • Superior Optical Transmission
    With excellent transparency across a wide spectrum – from deep ultraviolet (150 nm) through visible light to mid-infrared (5 µm) – sapphire capillary tubes enable highly accurate optical monitoring, spectroscopy, and laser-based applications.

  • Chemical and Corrosion Resistance
    Sapphire is chemically inert to most acids, alkalis, and organic solvents. This makes it an ideal choice for aggressive environments, high-purity chemical analysis, and long-term stability in laboratory and industrial use.

  • High Thermal Stability
    Capable of withstanding temperatures up to 2000 °C in vacuum or inert atmosphere, sapphire maintains both structural and optical properties under extreme heat. Its thermal shock resistance is far superior to glass or quartz.

  • Biocompatibility and Safety
    Certified biocompatible, sapphire capillary tubes are widely used in medical diagnostics, biotechnology research, and pharmaceutical instruments where purity and safety are critical.

Typical Applications

  • Chromatography & Analytical Science – High-performance liquid chromatography (HPLC), gas analysis, and microfluidic systems.

  • Medical & Biotech Devices – DNA sequencing, drug delivery systems, catheter components, and implantable sensors.

  • High-Pressure Fluid Handling – Micro-pumps, injectors, and precision flow control under extreme pressure conditions.

  • Optics & Photonics – Laser systems, optical diagnostics, spectroscopy, and fiber coupling.

  • Aerospace & Semiconductor Industry – Harsh-environment sensors, vacuum systems, and precision instrumentation.

 

Why Choose Sapphire Capillary Tubes?

By combining exceptional hardness, thermal endurance, optical clarity, and chemical inertness, sapphire capillary tubes provide a performance level unmatched by conventional materials. Whether in advanced laboratories, medical research, or cutting-edge industrial equipment, sapphire ensures accuracy, reliability, and longevity.

Sapphire capillary tubes are more than components – they are the foundation for next-generation technology.