Product Name: Zirconia Ceramic Sealing Ring
Product Material: Yttrium-stabilized tetragonal zirconia (3Y-TZP)
Material Characteristics: High fracture toughness, excellent wear resistance, ultra-low friction coefficient, strong corrosion resistance, high hardness, outstanding dimensional stability
Application Fields: Mechanical sealing systems, chemical pump and valve sealing, high-temperature and high-pressure sealing devices, medical equipment sealing, semiconductor equipment sealing
Application Industries: Petrochemicals, mechanical equipment, medical devices, semiconductor manufacturing, new energy
Processing Difficulties: Roundness accuracy control, high requirements for sealing surface smoothness, control of thin-walled part deformation, guarantee of batch consistency
Processing Flow: Powder processing → Spray granulation → Forming (dry pressing/CIP) → High-temperature sintering → CNC precision processing → Inspection → Ultrasonic cleaning → Packaging
Delivery Time: 25-35 days, special requirements 40-50 days
Zirconia ceramic sealing rings are precision sealing components made from 3Y-TZP zirconia. They are used in semiconductor fluid control equipment, including precision pumps, valves, chemical delivery units, and wet-process systems. Their wear resistance, fracture toughness, and dimensional stability help reduce sealing-surface wear, deformation, and premature failure. Custom sizes and sealing geometries can be manufactured according to customer drawings and operating requirements.
These sealing rings are made from 3 mol% yttria-stabilized tetragonal zirconia polycrystal, commonly known as 3Y-TZP. Compared with conventional alumina, this zirconia grade has greater fracture toughness and is less likely to chip when exposed to assembly stress or repeated mechanical contact.
Its fine-grained structure allows the sealing surface to be accurately ground, lapped, and polished. This makes 3Y-TZP suitable for small sealing components that require controlled geometry and a smooth functional surface. Other zirconia grades can also be evaluated according to the chemical medium, operating temperature, load, and cleaning process.
Learn more about our zirconia ceramic materials and components .
Zirconia ceramic sealing rings can be installed at fluid-handling points where accurate flow control, equipment cleanliness, and reliable sealing are important. Typical applications include:
View more semiconductor ceramic parts for wafer-processing and fluid-control equipment.
CERAMPRO manufactures zirconia ceramic sealing rings according to customer drawings rather than limiting customers to standard catalogue sizes. Our manufacturing support includes:
We can also manufacture related components for ceramic pump and fluid-control assemblies .
| Parameter | Reference Information |
|---|---|
| Material | 3Y-TZP zirconia ceramic |
| Composition | Zirconium oxide stabilized with approximately 3 mol% yttria |
| Color | White; other colors may be available depending on the selected grade |
| Density | Typically about 6.0 g/cm³ |
| Vickers Hardness | Typically above 1,200 HV |
| Fracture Toughness | Typically 6–8 MPa·m1/2 |
The values above are typical reference data rather than guaranteed specifications. Actual properties may vary depending on the selected zirconia grade and manufacturing process. Final material specifications should be confirmed before production.
| Material | Main Characteristics | When to Consider It |
|---|---|---|
| 3Y-TZP Zirconia | High fracture toughness with good resistance to mechanical wear | Suitable for small sealing parts exposed to contact, assembly stress, or repeated movement |
| Alumina | High hardness, electrical insulation, and broad chemical resistance | Often selected when cost, insulation, and general wear resistance are the main considerations |
| Silicon Carbide | High hardness, good thermal conductivity, and strong resistance to severe wear | Considered for demanding mechanical seals where thermal transfer and wear performance are priorities |
The material should be selected according to the actual fluid, temperature, pressure, movement, mating surface, and cleaning process. Zirconia is suitable for many precision sealing applications, but the final choice should be based on the operating conditions of the complete assembly.
Zirconia is compatible with many industrial fluids and process chemicals. However, suitability depends on the chemical type, concentration, temperature, exposure time, and cleaning method. Please provide information about the actual process medium so that the material can be reviewed before production.
A 2D drawing should show the inner diameter, outer diameter, thickness, tolerances, surface finish, and other critical features. Information about the process fluid, operating temperature, pressure, movement, and mating material is also helpful.
Yes. We can carry out an initial manufacturing review based on a metal or polymer sample, an assembly drawing, or the main installation dimensions. The final dimensions, tolerances, and inspection requirements must be confirmed before production.
Possible mating materials include engineering ceramics, hardened metals, carbon materials, and selected engineering plastics. The correct pairing depends on whether the interface is static or dynamic, lubricated or dry, and whether abrasive particles are present.
Inspection can include dimensions, geometric features, and surface condition according to the approved drawing. Final leakage or pressure testing is normally performed in the customer’s assembly because sealing performance also depends on installation, preload, mating components, and operating conditions.
Cleaning and packaging requirements can be discussed during the quotation stage. Please specify the required cleanliness level, prohibited materials, packaging method, and any additional handling or inspection requirements.
Yes. CERAMPRO supports OEM customers in the United States, Germany, Japan, and other European markets. We provide custom manufacturing based on customer drawings, from prototype evaluation and small-batch production to repeat orders. Inspection documentation, packaging, and international shipping requirements can be discussed before production.
