High Temperature Sapphire Tube OD 33mm ID 27mm Length 111mm Optical Path

The Sapphire Tube is a high-performance precision tube with an outer diameter of 33mm, an inner diameter of 27mm and a length of 111mm, manufactured from single crystal alumina. Combining ultra-high hardness with excellent scratch and wear resistance, the tube delivers exceptional durability in demanding optical and industrial environments. Its wide transmittance range from UV to IR supports diverse optical applications, while resistance to high temperature, high pressure and acid and alkali corrosion ensures reliable operation under extreme conditions. With excellent thermal conductivity and thermal stability, the sapphire tube maintains its mechanical and optical integrity throughout a long service life.

• Single crystal alumina material: The crystalline sapphire structure delivers superior strength and optical clarity.
• Ultra-high hardness with scratch and wear resistance: The hard surface resists abrasion and maintains optical quality in service.
• Wide transmittance range from UV to IR: The tube transmits light across a broad spectrum for versatile optical use.
• High temperature and pressure resistance: The material withstands extreme operating conditions without degradation.
• Inert to acid and alkali: Excellent chemical resistance keeps the tube reliable in corrosive environments.
• Excellent thermal conductivity and stability: Efficient heat transfer and stable structure prevent thermal damage.

The Sapphire Tube is designed for optical and industrial systems that demand high strength and broad-spectrum transmittance. It is widely used in high-temperature optical paths, guiding light in furnaces and thermal processing systems where ordinary glass fails. In instrumentation, the tube serves as a protective sleeve for high-pressure instruments, shielding sensitive components from pressure and chemical attack. The component is also adopted in spectral testing equipment, providing stable optical windows for accurate measurements. In laser systems, the tube functions as a laser component housing, combining durability with UV-to-IR transmission. Additionally, the tube works as a corrosion-resistant observation tube for the chemical industry, allowing visual inspection of processes in aggressive media.

• Mechanical strength far superior to fused silica and ordinary glass: The sapphire structure resists impact, pressure and wear far better than conventional materials.
• Crack-proof under drastic temperature change: Excellent thermal stability prevents cracking during rapid heating and cooling.
• No precipitation under long-term high temperature: The pure material releases no contaminants, protecting processes and media.
• Smooth inner wall avoiding medium contamination: The clean bore surface keeps transported media uncontaminated.
• Long service lifespan: Combined durability and stability deliver extended operational life with minimal maintenance.