At Vhandy Ceramics, we understand the importance of choosing the right alumina ceramics for your specific industrial applications. In this article, we provide an overview of the key properties and manufacturing considerations to ensure you select a high quality alumina product that meets your needs.

Alumina, or aluminum oxide, is one of the most versatile advanced ceramic materials available today. With a combination of high hardness, excellent dielectric properties, refractoriness, and good corrosion and wear resistance, alumina ceramics outperform other technical ceramics in many demanding environments. However, there can be significant variability between alumina ceramic products depending on factors such as purity, density, grain size, and manufacturing method.

When evaluating alumina ceramics, here are the key criteria to consider:

  • Purity – Higher purity grades above 99.5% aluminum oxide offer superior properties. Impurities can degrade performance.

  • Density – Higher density indicates fewer pores and flaws for greater strength. Aim for ≥3.7 g/cm3.

  • Grain Size – Smaller, more uniform grains provide better wear resistance. Submicron grains are ideal.

  • Manufacturing Method – Tightly controlled processes like injection molding yield consistent, high quality parts.

advanced ceramics
advanced ceramics

At Vhandy Ceramics, we leverage decades of experience to manufacture exceptional alumina ceramics using injection molding and advanced sintering techniques. Our alumina contains 99.7% aluminum oxide with a density over 3.9 g/cm3 and submicron grain sizes below 1 μm for exceptional mechanical performance. We meticulously control every step of the process to ensure your components meet precise specifications for your application. Customers trust Vhandy alumina ceramics for the most challenging, high temperature, high tolerance applications.

We encourage you to contact our engineering team to discuss your specific project requirements. We can help you select the right alumina product in terms of material grade, manufacturing method, dimensional precision, and secondary operations like machining or surface treatments. With a flexible manufacturing facility and strong commitment to quality, we are ready to deliver alumina ceramic solutions to meet your needs. Visit our website or reach out today to get started.


Can you provide samples for me to test? How much does it cost?

We strive to provide ceramic samples that closely meet your requirements to the best of our abilities.
The samples are completely free, but you need to pay the freight.
For samples with unique shapes that require custom molds, we are open to discussing the mold cost in order to accommodate your specific needs.

We don’t know which material of ceramic we need, what should we do?

No worries! Please provide us with more details about your requirements, such as the intended use, desired properties, and any specific characteristics you're looking for.

With these information, our team can guide you in selecting the most suitable ceramic material for your needs.

We are concerned about the quality of the product we ordered.

We understand your worries and we maintain stringent quality control standards as following:

Test Standard Testing Dimension Pass Rate Standard Range
Appearance Inspection Quantity and Severity of Defects ≥ 97.3% Determined by AQL standard
Dimensional Inspection Size Accuracy and Consistency ≥ 98.1% Determined by ISO 9001 standard
Density Testing Material Density ≥ 97% Determined by ASTM C20 standard
Hardness Testing Surface Hardness ≥ 98.2% Determined by ISO 6508 standard
Flexural Strength Testing Material Flexural Strength ≥ 97.9% Determined by ASTM C1161 standard
Thermal Shock Stability Testing Material Thermal Shock Stability ≥ 98.7% Determined by ASTM C884 standard

*Qualification standards higher than ISO standards

In addition to production line inspections, we also accept inspections from third-party organizations several times a month

While the occurrence of defects is extremely rare, it is an unavoidable possibility. If any quality issues arise, we take full responsibility and will expedite the reproduction process at cost price.

Our commitment is to ensure that our products meet the highest quality standards and promptly address any concerns to ensure customer satisfaction.

What is the processing accuracy of ceramics?

Precision Requirement Example Unit
Surface Flatness Ra ≤ 0.1 μm μm
Dimensional Accuracy Tolerance within tens of μm μm
Aperture Precision Diameter tolerance within a few hundred μm μm
Surface Finish Ra ≤ 0.2 μm μm

We maintain strict processing precision standards, ensuring that our products meet the majority of requirements using our standard manufacturing processes.

However, if you have a need for even higher precision products, please feel free to contact us.

We can discuss your specific requirements and explore customized solutions to meet your exacting standards.

What's your trade terms?

We prefer EXW, FOB and CIF as for terms.
T/T, West Union,30% deposit, 70% balance paid before delivery are greatly appreciated.

How long does your production take?

Q: What is the typical production lead time for Vhandy Ceramics?
A: The typical production lead time for Vhandy Ceramics is 15 to 20 days.

Q: Are there any situations where the actual delivery time may be longer?
A: Yes, in certain cases, such as shipping to distant countries, the actual delivery time may be extended beyond the standard range.

Q: What factors can contribute to longer delivery times?
A: Factors such as customs clearance procedures, transportation logistics, and international shipping arrangements can contribute to longer delivery times.

Q: How does Vhandy Ceramics handle potential delays?
A: Vhandy Ceramics strives to minimize potential delays and works closely with shipping partners to expedite the process whenever possible.

Q: Can I get an accurate delivery estimate for my order?
A: Yes, our customer service team can provide you with an estimated delivery time based on your specific order and location. They will also keep you informed throughout the production and shipping process.


*Your contact won’t be shared with 3rd party.

    Shenyang Vhandy Technology Co., Ltd.

    Room 401, D11 Block (Shenyang International Software Park), Shenyang, Liaoning, China



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