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Quick Details

  • Place of Origin: Hunan, China (Mainland)
  • Type: Ceramic Parts
  • Application: Industrial Ceramic
  • Material: Alumina Ceramic
  • Model Number: Customer's Requirements
  • Brand Name: Jinghui ceramics
  • Color: White, pink available
  • Max.OD: can be up to 300mm
  • Min. OD: Can be less than 1mm
  • Tolerance control: Tight dimensional via machining
  • Surface finish: Glazed
  • Metallization: Mo-Mn or W
  • Thickness of metallization: 30±10um
  • Plating: Ni, Ag, Au plating available
  • Thickness of outer coating: 2~6um
  • Usage: Ceramic insulator for power grid tubes

Packaging & Delivery

Packaging Details 1. Vacuum package with desiccant;
2. Eco-friendly export carton;
3.Wooden box if needed
Delivery Time 3~4 weeks after receipt of deposit

Metallized AL2O3 ceramic body insulator

Product Description

-Metallized ceramic insulator is made from 95% alumina oxide;

-Forming methods: hot pressing, dry pressing, Iso-pressing

-All of them can be custom made per customers' drawing or physical samples;

-The min. diameter can be lower than 1.0mm, the largest diameter can be up to 300mm;

-Prototype to high volume production capability


Visual quality:

-Nonflatness : no more than 0.1mm

-No blisters on outer coating at the temperature up to +900 °C

-Free of nickel coating spots on the metallized insulator surface

-Free of tear of metal coating from ceramic metallized insulator

-No impurities of dark, yellow dots on the metallized ceramic insulators surface


Metallization jointing type:

-Ceramic body +  Ag plating

-Ceramic body + Mo/Mn metallization

-Ceramic body + Mo-Mn metallization + Ni plating

-Ceramic body + Tungsten metallization + Au plating


Prime features:

1. Excellent brazing/bonding strength

2. Great hermerticity tightness

3. Superior electrical properties

4. Good mechanism strength

5. Exceptional wear resistance with very long service life



Widely used in vacuum interrupters, Electron tubes,Gas discharge tube, Vacuum capacitor,Vacuum thyristors, Surge arresters,Thyristor housings,Diode housings,Power grid tubes,Traveling wave tubes,Insulator rings and cylinder,X-ray tubes and so on.


Special type can be available per customer's drawing or physical samples.   


Manufacturing flow charts: 

We strictly control the quality of metallized ceramic parts per ISO9001:2008 quality management system, we have strict IQC, FQC, OQC process for whole flow chart.

Products showroom



Material Data. Sheet











Color WhiteIvoryIvoryWhiteBlackBlackGray
Water absorption%0000000
Flexural strengthMpa≥320≥338≥3791200550158650
Compressive strengthMpa≥2000≥2240≥224019903306---2200
Max. service temperature
Thermal conductivityW/(m.K)2429302.5150525
Ω.cm> 10^14> 10^14> 10^14> 10^1110^510^12> 10^14
Insulation strengthkV/mm18181917---3.9316
Dielectric constant-


Packaging & Shipping

 Packaging proposal:

1.Vacuum packing with desiccant as inner package;

2.Then, exported carton as outer package.

3.Finally, it will be packed by wooden case if needed.

Transportation methods:

1. Int'l express 2. Air freight; 3. Sea freight 

Our Services


Company Information

 We, at Jinghui Industry Ltd, is a leading advanced ceramic components’ manufacturer in China who specilizing in producing various of fine ceramic components for different industry over than 12 years.


The selection manufacturing methods include dry pressing, hot pressing, isostatic pressing,extrusion, injection molding in selection of materials, also we have our own entire secondary precision processing and firing production line, such as lapping processing, CNC machining processing, metallization processing, laser cutting processing, glazing and firing processing and so on.

   With our reliable products, professional service and good credit established with customers, we have been exporting our products to Europe, North American, Southeast, South American, South African more than 50 countries.



 Q1. Is it available to provide customize products?

A: We always support custom-made metallized ceramic body insulators as per different dimensions, design and metallization and plating.


Q2. When can I get the price?

A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of get the price, please call us or tell us in your email so that we will proceed your inquiry as priority.


Q3. How long can I expect to get the sample?
A: After you pay the sample charge and send us confirmed files, the samples will be ready for delivery in 4 weeks. The samples will be sent to you via express and arrive in 3-5 workdays. You can use your own express account or prepay us if you do not have an account.

Q4. How long does the whole procedure being worked out?
A: After you place an order, the manufacturing time is about 25 working days.


Q5. What about the transportation and delivery date?
A: Normally we use Int’l express by our forwarder, or with client’s account number.  It is about 3~5 working days. For some heavy goods, sea freight will be recommended, it will take around 1 month, but It also depends on where you are.  


Q6. How to ensure the quality?

A: The dimension out of any batch will be carried out sampling inspection per International AQL standard. 100% cosmetic inspection will be done.


Q7. Are you a factory or trading company?
A: We are a professional manufacturer. We are warmly welcome clients from worldwide to visit our factory and cooperate with us.

Contact us



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