• Product Details

Product Introduction

95% 99% alumina piston plunger properties:

(1) Alumina Ceramic plunger adopts high-performance technical ceramic material, which has high hardness, wear resistance, high temperature resistance and corrosion resistance. Ensure material performance is reliable.

(2) The microporous structure obtained by the unique working method of the ceramic plunger working surface has self-lubricating effect, which changes the mechanism of sliding friction and lubrication of the conventional plunger pump.

(3) The inner cavity surface adopts a fluid structure with no dead angles or grooves. The surface of the inner cavity is matched with the surface of the plunger by an advanced high-precision internal and external cylindrical grinding machine to the mirror surface, and the outer surface is vibrated and polished to facilitate cleaning and disinfection.

(4) The structure of the pump body is finely sealed with the product structure for easy disassembly.

(5) These products have been tested for corrosion resistance and acid and alkali resistance, and their indicators have reached the level of international products.

Zirconia Alumina Ceramic Plungers capabilities:

•  Material: Zirconia, Alumina,
•  Surface Roughness: Ra0.05um
•  Type: Full Ceramic, Ceramic + Steel

We can provide customized services according to the drawings

The surface roughness of alumina plunger can reach Ra0.2um

It can be used in the environment up to 1650 ℃

The hardness is as high as 15.7Gpa, very wear-resistant

Other characteristics: high electrical insulation, strong corrosion resistance, high biocompatibility

We can do OEM and OBM according to you drawing and requires

Performance For Industrial Ceramic

ItemUnit95 Al2O399 Al2O3
Heat Resistance15001800
Bulk Densityg/cm33.63.8
Water Absorption%00
Flexural StrengthMpa320360
Hardness VickersGpa12.215.6
Elastic ModulusGpa280370
Poisson’s Ratio-0.220.23
Linear Expansion Coefficient(20-5000℃) 10-6/℃7.18
Thermal ConductivityW/(M.K)1632
Specific Heat×10-3J/(KG.K)0.780.9
Dielectric Constant(1MHZ)-99.9
Dielectric Loss Angle×10-4151
Dielectric Strength×10 6V/m1215

Product Details


High Temperature Ability – Alumina can be used in both oxidizing and reducing atmospheres up to 1650°C (2900°F) and in vacuum environments up to
2000°C (3600°F). Abrasion Resistant – Alumina is a very hard ceramic and is excellent at resisting abrasion. It is ideal for wear-resistant inserts or products.
Electrical Insulator – Alumina is commonly used as a high temperature electrical insulator, particularly the higher purity grades which offer better resistivity.
Chemical Resistance – Alumina offers good resistance to strong acids and alkalis at elevated temperatures and is ideal for applications where resistance to corrosive substances is required.


Great Ceramic has rich experience in milling, grinding and polishing precision (Advanced) ceramics and firing ceramics, which enables us to achieve:

When the outer diameter accuracy is the best, it can reach ± 0.002 mm, generally ± 0.01 mm;
When the inner hole accuracy is the best, it can reach ± 0.004 mm, generally it is ± 0.01 mm;
The surface roughness of alumina plunger can reach Ra0.2um after polishing, and it is Ra0.6um in general in the state of fine grinding; When the roundness is the best, it can reach 0.002mm, and the general accuracy is within 0.01mm;
Please contact us for other details of the structure.

All tolerances can be improved upon depending on the size, shape & geometry of the technical ceramic part. Great Ceramic is dedicated to ensuring we make only the highest quality parts that meet or exceed our customers specifications.

Factory Pictures

Liling Xing Tai Long Special Ceramic Co., Ltd was established in 1997, specializing in research and development, manufacturing high pure alumina ceramic product, BeO ceramic product, zirconia ceramic product, silicon carbide ceramic product, BN ceramic product and graphite ceramic product. Main as: alumina/zirconia tube, alumina/zirconia crucible, clay fire assay crucible, alumina/zirconia disc, alumina/zirconia substrate, alumina/zirconia part, textile ceramic, alumina/zirconia nozzle, alumina/zirconia ball and alumina/zirconia brick, silicon carbide/graphite/BN crucible, silicon carbide/Si3N4 ball, SiC plate/board, PBN/BN part, graphite part. Also accept OEM and ODM.

The products are widely used in lamps and lanterns, electric appliances, electric heating products, nozzle, auto parts, wear-resistant parts of insulation material, etc.

The  company always adhere 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, United States, Finland, 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.

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.

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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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