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Overview of High Temperature Al2O3 Ceramic Insulating Capillaries Alumina Ceramic Capillary Tube for Thermocouple Wire Custom Cutting
High Temperature Al2O3 Ceramic Insulating Capillaries Alumina Ceramic Capillary Tube for Thermocouple Wire Custom Cutting is manufactured from 99%+ pure aluminum oxide (Al₂O₃), offering exceptional thermal stability and mechanical strength. Designed to operate in temperatures up to 1800°C, these precision-engineered tubes feature outstanding resistance to thermal shock, corrosion, and wear.
Ideal for thermocouple protection, furnace liners, semiconductor processing, and high-temperature sensor housings, our alumina tubes maintain structural integrity in the most demanding industrial and laboratory environments.
Key Features of High Temperature Al2O3 Ceramic Insulating Capillaries Alumina Ceramic Capillary Tube for Thermocouple Wire Custom Cutting
Ultra-High Temperature Resistance – Stable performance up to 1800°C
Superior Thermal Shock Resistance – Withstands rapid temperature cycling
Excellent Chemical Inertness – Resists acids, alkalis, and molten metals
High Mechanical Strength – Exceptional hardness and wear resistance
Electrical Insulation – Ideal for electronic and semiconductor applications
Customizable Dimensions – Available in various lengths, diameters, and wall thicknesses

(High Temperature Al2O3 Ceramic Insulating Capillaries Alumina Ceramic Capillary Tube for Thermocouple Wire Custom Cutting)
Specifications of High Temperature Al2O3 Ceramic Insulating Capillaries Alumina Ceramic Capillary Tube for Thermocouple Wire Custom Cutting
These Al2O3 ceramic protecting veins provide important security for thermocouple cords sought after, high-heat settings. Made from high-purity light weight aluminum oxide ceramic (alumina), they use superior thermal and electric insulation. This product manages severe temperatures effectively. You can use these capillary tubes continually in temperatures reaching 1600 ° C (2912 ° F). Short-term use is feasible also greater. This makes them excellent for furnaces, kilns, boilers, and any kind of process needing exact temperature level measurement under extreme warmth.
The crucial advantage is their electrical insulation. They reliably separate thermocouple wires. This avoids electrical shorts. It guarantees your temperature analyses stay exact and safe. Alumina ceramic is naturally hard and solid. These blood vessels stand up to wear, abrasion, and chemical assault successfully. They won’t conveniently split or weaken like some plastics or weaker porcelains. This equates to longer life span and less downtime for substitutes.
We provide these alumina ceramic capillary tubes in different basic dimensions. Common outside sizes vary from 1.0 mm to 6.0 mm. Common inside diameters range from 0.5 mm to 4.0 mm. Wall thicknesses are generally in between 0.25 mm and 1.0 mm. Standard lengths are frequently 500mm or 1000mm. Custom-made dimensions are conveniently offered. We can cut tubes to your specific called for lengths. We can likewise produce non-standard sizes and wall surface densities to fit your particular thermocouple assembly requirements. The ceramic product is conveniently machined. This allows precise cutting for best integration into your sensor configuration.

(High Temperature Al2O3 Ceramic Insulating Capillaries Alumina Ceramic Capillary Tube for Thermocouple Wire Custom Cutting)
Applications of High Temperature Al2O3 Ceramic Insulating Capillaries Alumina Ceramic Capillary Tube for Thermocouple Wire Custom Cutting
Heat Al2O3 ceramic shielding capillaries fix important issues in severe thermal atmospheres. These tubes provide essential security and electrical isolation for fragile thermocouples. Alumina ceramic offers outstanding resistance to extreme warm. It endures temperature levels consistently over 1700 ° C. This capacity is vital inside heaters, kilns, activators, and engines.
The product serves as a strong, non-conductive obstacle. It guards vulnerable thermocouple wires from physical damage and electric shorts. Pure alumina ceramic makes sure reputable insulation. This avoids signal disturbance and measurement errors. Exact temperature level readings are important for process control and safety.
Our alumina ceramic capillary tubes are precisely manufactured. They include smooth internal bores and regular external sizes. This allows thermocouple cords to slip-fit quickly inside television. Televisions offer exceptional thermal security. They stand up to thermal shock and chemical corrosion. This ensures lengthy life span also under requiring biking problems.
A vital application includes custom-made cutting these capillaries to exact sizes. Factories and labs need details tube sizes for distinct sensor setups. We offer precision cutting services. This produces custom capillary sections tailored to your thermocouple setting up demands. Personalized sizes ensure excellent fit and optimal efficiency in your tools.
These ceramic tubes are necessary where steel sheaths stop working. Steel can melt or carry out electrical power improperly at ultra-high temperature levels. Alumina ceramic remains undamaged and shielding. Industries like steel production, aerospace testing, glass production, and research laboratories count on them. They shield thermocouples determining important procedure temperature levels. This safeguards tools and guarantees product quality.
Company Profile
Alumina Technology Co., Ltd,. We focus on the research and development, production and sales of alumina products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.
Our products includes but not limited to Alumina Boat, Alumina Crucible, Alumina Dish, Alumina Foam Filter, Alumina Plate, Alumina Rod, Alumina Bar, Alumina Balls, Filter Alumina, Nano Alumina Powder, Spherical Alumina Powder, ect. please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods
T/T, Western Union, Paypal, Credit Card etc.
Shipment Methods
By air, by sea, by express, as customers request.
5 FAQs of High Temperature Al2O3 Ceramic Insulating Capillaries Alumina Ceramic Capillary Tube for Thermocouple Wire Custom Cutting
People often ask about our high temperature Al2O3 ceramic insulating capillaries. These tubes insulate thermocouple wires in very hot places. They are made from pure alumina ceramic. This material handles extreme heat well.
What are these alumina ceramic capillary tubes?
They are small, hollow tubes. They are made from alumina ceramic. You put thermocouple wires inside them. The tube keeps the wires apart. It also protects them from the hot environment and electrical shorts.
Why use alumina ceramic?
Alumina ceramic is special. It stays strong at very high temperatures. It does not melt easily. It is a great electrical insulator. This stops stray currents. It also resists chemical attack. This makes it reliable in tough conditions.
How hot can these capillaries handle?
These tubes work well long-term up to about 1600°C (2912°F). Short bursts can go even higher. This is much hotter than many plastics or other ceramics. They are good for furnaces, kilns, and engines.
Can I get custom sizes?
Yes. We cut the tubes to your exact length. Tell us how long you need them. We make them precisely. This ensures a perfect fit for your thermocouple assembly. No extra cutting is needed on your side.
What are the main benefits?
They last a long time under heat. They provide excellent electrical insulation. This protects your measurements. They keep thermocouple wires safely separated. They are stable and won’t degrade fast.

(High Temperature Al2O3 Ceramic Insulating Capillaries Alumina Ceramic Capillary Tube for Thermocouple Wire Custom Cutting)
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