China Ceramic Alumina Tube manufacturer

Medical Accelerators Metallized Ceramic Insulator , Alumina Ceramic Liner Ring

Product Details:
Place of Origin: China
Brand Name: Jinghui ceramics
Certification: RoHS, REACH, ISO
Model Number: JH.MCI.008
Payment & Shipping Terms:
Minimum Order Quantity: 100pcs
Price: Negotiable
Packaging Details: Vacuum packaging and export carton
Delivery Time: 28~35 days
Payment Terms: T/T, Western Union, MoneyGram, Paypal
Supply Ability: 10000pcs/month

Detail Information

Product Name: Metallization Ceramics Type: Ceramic Parts
Raw Material: 95%-99% Alumina Ceramic Density: 3.6-3.90g/cm3
Color: White Shape: Irregular
Size: Size Customized Package: Vacuum Packaging
Usage: For Electrical Vacuum Devices
High Light:

ceramic wire insulators


ceramic standoff insulators

Product Description

High Bonding Strength Ceramic Metallized Rings for Medical Linear Accelerators

Specification of ceramic metallized rings

1. They are made of 95% alumina, 99% alumina, zirconia or beryllia.

2. The max.diameter of ceramic metallized rings can be 50mm

3. We can provide a selection of joining type of metallization, including Mo / Mn and W.

4. Precision processing can be carried out with internal, external and end surface,

5. The best flatness can be 0.01mm, the best tolerance can reach 0.01mm

6. The glazing treatment which enhances the insulation can be done.

Description of metallized ceramic rings

We offer thin or thick deposition metallization on aluminum oxides, zirconium oxide, beryllia or nitride aluminum ceramic body.

With our house-made paints and advanced metalizing equipment, we could deal with a variety of metallized ceramics, including metallized ceramic tubes, metallized ceramic rings, metallized ceramic substrates and so on.

Also, we offer a selection of precision processes, like fine grinding, CNC machining, laser cutting. It helps us to make the dimensions with tight tolerance, also help us to have sufficient capability on cost control.

Medical Accelerators Metallized Ceramic Insulator , Alumina Ceramic Liner Ring 0
Technical specification and production capability:

Optional material

95% alumina

99% alumina

Zirconium Oxide

Beryllia Oxide

Nitride Aluminum

Max. outer diameter

800 mm

Max. Inner diameter

780 mm

Max. length

1000 mm

Nominal tolerance

OD ±0.05 mm

Nominal tolerance

ID ± 0.10 mm

Nominal tolerance 

L ±0.50 mm

Nominal flatness

0.05 mm

Nominal roundness

0.10 mm

Nominal parallelism

0.05 mm

Surface treatment






Metalization types

Ceramic base + Mo/Mn

Ceramic base + Ag plating

Ceramic body +Mo/Mn + Ni plating

Ceramic body + W + Au plating

Prime features:
● High bonding/brazing strength                          ● Min. electric resistance and vacuum tightness           

● High mechanical strength, insulation strength  ● Anti-chemical, anti-aging without corrosion              

● Super wear resistance with long service life
Key performance parameters

Leak rate

≤1×10-11 Pa•m3 / s Metal layer tensile strength ≥ 150Mpa

Volume resistivity

≥108Ω•cm CTE (6.5 ~ 8.0) × 10-6 /°C

Insulation strength

≥18kV/mm (D•C) Dielectric constant 9~10(1MHz, 20°C)

Visual quality: 1. No cracks, no bubbles; 2. Evenly distributed glaze; 3. No contamination


Typical application of metalized ceramic components
Medical Accelerators Metallized Ceramic Insulator , Alumina Ceramic Liner Ring 1
Metallized ceramic insulators are widely used in electronics, high-vacuum technology, sensors, and medical fields, like vacuum interrupters, electron tubes, feedthroughs, medical linear accelerators/ power tubes, photomultipliers, X-ray tubes, and pressure sensors.

Packaging proposal and transportation

1. Vacuum packaging to be a vacuum state with drier as the inner package; 
2. An exported carton as the outer package;  Inside of carton will be filled with protective kinds of stuff.
3. The wooden case will be used if needed when the carton is very heavy.

Why choose us?

★ 10+ Years of manufacturing experience in OEM, ODM              ★ In-house comprehensive manufacturing types of equipment 
★ Powerful R&D, mass production capability                                 ★ Rigorous quality control system and processes                         
★ Surpassing pre-sales and after-sales service                             ★ Abide all orders as the first priority

FAQs (Frequently Asked Questions)

Q1. Are you a factory or trading company?
A: We are a manufacturer. You are welcome to visit our factory.

Q2: Do you send a sample to check?
A: Sure, the sample is free and freight collect.

Q3: When will you ship it?
A: If the products are in storage, we'll ship within 48 hours

Q4: 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 getting the price.
Please call us or tell us in your email so that we will proceed with your inquiry as a priority.

Q5: Is it available to provide customized products?
A: We always support custom-made demand as per different materials, dimensions, and designs.

Q6: How to ensure quality?
A: The dimension out of any batch will be carried out sampling inspection per international AQL standard. A 100% cosmetic inspection will be done.

Q7: What other products are you dealing with?
A: We focus on a variety of ceramic tubes, ceramic substrates, ceramic sheets, textile ceramics besides metalized ceramics.

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