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SINTYRON Insulating Alumina ceramic base with multiple holes for new energy vehicle charging piles


Alumina ceramic bases are indispensable for ensuring the safety, efficiency, and reliability of new energy charging infrastructure. Their superior electrical insulation, thermal management, and mechanical properties make them ideal for high-power applications. Ongoing innovations in material composites and manufacturing will further enhance their performance and adoption in the energy sector

Email: sintyron@xtlceramic.com

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SINTYRON Insulating Alumina ceramic base with multiple holes for new energy vehicle charging piles


Product description:
Alumina ceramic (Al₂O₃) is an ideal insulation material for high-power applications like new energy charging stations due to
its exceptional properties

Alumina ceramic substrate Information:

Product Alumina ceramic base
Material Al2O3
Purity 95%-99%
Color White/Nylon yellow
Shape Arc/Square/Rectangle/Cylinder/Boat
Capacity 1-2000 ml
Density 3.98 g/cm3
Melting Point 2020℃
Max. Working Temperature 1800 ℃or 3180 F

Performance parameters:

Test item   alumina
index unit AL997 AL99 AL95
Principal component content N/A 99.70% 99% 95%
Color N/A ivory white ivory yellow White
Gas permeability N/A airtight airtight airtight
density g/cm3 3.9 3.8 3.7
hardness Moh's hardness 9 9 8.8
Water Absorption N/A ≤0.2 ≤0.2 ≤0.2
Bending strength (20°C) Mpa 375 340 304
Compressive Strength (20°C) Mpa 2300 2210 1910
Coefficient of thermal expansion (25°C to 800° C) 10X6/° C 7.6 7.6 7.6
Insulation strength (5mm thickness)  AC-kv/mm 10 10 10
Dielectric loss 25°C lMHz  N/A 0.0001 0.0006 0.0004
dielectric constant 25°C MHz  N/A 9.8 9.5 9.2
Volume resistivity (20°C) (300°C) (500 °C) Ω.cm3 >1014 >1014 >1014
2X1012 4X10" 2X10"
N/A N/A N/A
Long-term service temperature 1700 1600 1400
Thermal conductivity (25° C) W/m/K 35 34 20

Properties of Alumina Ceramic base:

1.High Electrical Insulation: Room temperature resistivity >10¹⁴ Ω·cm, with dielectric strength of 15–20 kV/mm, effectively preventing
current leakage and short circuits .

2.Excellent Thermal Conductivity: Ranges from 18–35 W/(m·K) depending on purity (92%–99.7%), efficiently dissipating heat generated
during high-power charging .

3.Thermal Stability: Withstands long-term operation at temperatures up to 1600°C (melting point 2050°C), ensuring reliability under thermal
cycling .

4.Mechanical Strength: High hardness (HV 15–20 GPa) and flexural strength (300–370 MPa) provide structural integrity and resistance to
mechanical stress.

5.Chemical Inertness: Resists corrosion from coolants, oils, and environmental exposure, enhancing durability in harsh conditions .

Applications of Alumina Ceramic base:

In new energy charging stations, alumina ceramic bases serve critical functions:

  • IGBT Insulation and Heat Dissipation: Used as insulating layers between IGBT modules and heat sinks in high-voltage charging piles.
    For example, ceramic sheets with metal inserts are designed to enhance dielectric strength while maintaining thermal transfer efficiency .

  • Thermal Management for High-Power Systems: Essential for DC fast chargers (e.g., 350 kW+), where temperatures exceed 150°C. Alumina
    bases dissipate heat from power electronics, preventing overheating and ensuring safety .

  • Fire Safety and Isolation: Ceramic aerogel insulation plates (e.g., Al₂O₃-based) are integrated into battery swap cabinets to block heat transfer
    between charging compartments, reducing fire risks .

Customization and Quality Assurance

  • Customization: Many manufacturers offer alumina plates tailored to specific dimensions, shapes, and performance requirements
    based on customer drawings or samples.

  • Quality Control: Manufacturers adhere to strict quality control processes, including ISO certifications, to ensure the plates meet
    high standards of durability and performance

Company Information:

FAQ:

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 products. 
What is the MOQ?
* No limit to the quantity. We can offer the best proposal and solutions according to your condition.
What is the payment terms you accept?
* T/T,LC,Western Union,moneygram are acceptable.
How to deal with the faulty?
* Firstly, Our product are produced in strict quality control system and the defective rate will be less than 2%.
If there are problems with the product, we will provide free replacement.

Intention information


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