Alumina ceramic disc

Product Introduction

Alumina ceramic plate disc in its various levels of purity is used more often than any other advanced ceramic material. 

Product introduction:




OD: 11.5mm---32mm

ceramic discs Features:

1.The frictional times is 300, 000 to 500, 000,

2.Density :3.6~3.7g/cubic centimeter,

3.Rigidity is 84~86 HRA,

4.The thickness tolerance is less than 0.02mm, the diameter tolerance is less than 0.02mm,

5. Satisfy various technical request

6. Lower medium spoilage

6. Good insulation performance and high temperature resistance

7.Stiffness texture

8. Used in all electric products and electric heating products

9.OEM, ODM and OBM are welcomed

Alumina ceramic disc is a good solution to the problems of high corrosion and high solid content wear in soda production process, especially in the salt water and distillation process, ceramic valve core destroyed any kind of corrosion and wear resistant alloy material of the valve core, so that the ceramic valve plate has become the most ideal valve core material so far.

Static and dynamic, static is equipped with four hole on, they are cold, hot water inlet and outlet, respectively, on a chip of the adjacent two section two layers inside and outside ring belt, as a group, and the other two are also two layers inside and outside ring belt, become another group, two groups of hole with a diameter of symmetry, move on, there are two symmetrical concave cavity in diameter,Each cavity on the moving piece can cover the two through holes corresponding to it on the connected fixed piece. When the moving piece rotates along the axis of the fixed piece on the fixed piece, each cavity on the moving piece can connect or close the two through holes corresponding to it at the same time to realize the double switch and throttling of cold and hot water.

Note: the ceramic disc spool is used in the water mouth, there is a moving disc and a static disc in the valve, the ceramic disc spool is wider than the ceramic disc spool, you can try the ceramic disc seal, can also be a ceramic ball seal.

Product Details

ItemTest ConditionUnit Symbol95% Alumina Ceramics99% Alumina Ceramics99.7% Alumina Ceramics
Flexural strength20° CMPa (psi x 103)358(52)550550
Compressive Strength20° CMPa (psi x 103)2068 (300)2600(377)2600(377)
Fracture ToughnessK(I c)Mpa m1/24.55.66
Coefficient of thermal expansion25-1000° C1X 10-6/°C7.67.98.2
Coefficient of thermal conductivity20° CW/m °K163030.4
Thermal Shock ResistanceTc°C250200200
Dielectricity constant1MHz.25°C/99.79.7
Dielectric strength/ac-kV/mm (ac V/mil)8.3 (210)8.7 (220)8.7 (220)
Volume Resistivity100°Cohm-cm> 1013> 1014> 1014

Factory Pictures
Company Advantages
Philosophy:With excellent quality, firt-class service, honest business
History:We are a company combined with R&D, production and sales wholly,
Price:Our products compare favorably with other traders.
Equipment:We have complete production line and testing equipment, including automatic production line.
Why us?
* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.
Are you a trading company or a manufacturer?
* We are a manufaturer. 
Can you provide the free samples?
* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.
Do you accept customized production based our specification?
* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea, we will work out the drawing for you.
What's the delivery time?
* 7 working days for standard products 30 days for customized product.


1.What is the MOQ?
No limit to the quantity. We can offer the best proposal and solutions according to your condition.
2.Do you accept OEM business?
Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea, we will work out the drawing for you.
3.Can I get samples from your factory?
Yes, sample is free, but the express charge is yours.


1.Group:We have our own team to research, design, produce and sell.
2.Quality:We have passed IS0 9001:2005. standard, stable,reliable
3.Price:Our products compare favorably with other traders.
4.History:We are a company combined with R&D, production and sales wholly,

About XTL

Liling Xing Tai Long Special Ceramic Co., Ltd. was established in 1997, specializing in research and development, manufacturing fire assay crucible and cupel. The products are used for precious metal analysis, mining laboratory testing, mineral assaying, and gold assaying. Fire assay crucibles material is fireclay mixed with other refractory materials, they can withstand temperature up to 1300℃. They have excellent resistance against flux attack, erosion, cracking, and thermal shock. As a powerful professional manufacturer of fire assay crucible with cupel, we have 7000 square meters new factory building with the automatic production line. The company always adheres to quality survival, innovation, and development, the integrity of the brand, to protect and thoughtful after-sales service enterprises as the goal. Over the years, our products are sold well all over the country and exported to Germany, the United States, Brazil, Russia, Mexico...more than 20 countries, product quality, and service are highly praised by customers. “Superior quality, preferential price” is our management tenet. we sincerely expect to cooperate with the masses of domestic and foreign customers, common development! Welcome to visit and investigate of our company.

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Take advantage of our unrivaled knowledge and experience, we offer you the best customization service.

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The first thing we do is meeting with our clients and talk through their goals on a future project.
During this meeting, feel free to communicate your ideas and ask lots of questions.
They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.

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