SSIC SiC Parts
SiC Silicon Carbide Ceramic Rings and Cylinders
Seal faces and sleeves ground to plus or minus 0.005 mm
Silicon carbide is the material to reach for when abrasion and heat arrive together. These rings and cylinders are ground to a tolerance of plus or minus 0.005 mm, resist high temperature service at 1200 degrees, and combine high hardness with low thermal conductivity and strong chemical stability. The usual duty is a mechanical seal face, a bearing sleeve or a bushing running in media that would destroy alumina.
Key Benefits
- Tolerance of plus or minus 0.005 mm so a seal pair runs true from the first hour
- High temperature resistance at 1200 degrees with good thermal shock behaviour
- Very high hardness and wear resistance in abrasive slurry duty
- High corrosion resistance, including acid attack at elevated temperature
- High density body with good chemical stability and biocompatibility
Problems It Solves
- Mechanical seals leaking early because the face pair was not ground to a matched tolerance
- Alumina sleeves wearing through in slurry service
- Face materials degrading in hot acidic media
Who It Is For
- Pump and seal builders specifying a face pair
- Chemical process plants replacing components that fail on abrasion
- Machine builders who need tight ground tolerances on ceramic parts
Application Scenarios
Mechanical seal faces in pumps and mixers
Bearing sleeves and bushings in abrasive slurry
High temperature industrial ceramic components
Corrosive process equipment liners and rings
Technical Features
- Tolerance plus or minus 0.005 mm
- High temperature resistance of 1200 degrees
- Low thermal conductivity with good chemical stability
- Shape and size fully custom
Manufacturing Process
Raw material preparation, forming, surface grinding, internal and external diameter grinding and precision CNC machining are all carried out in house.
Materials
- Silicon carbide SiC
Specifications
| Material | Silicon carbide SiC |
|---|---|
| Shape | Custom |
| Size | Custom |
| Tolerance | +/-0.005 mm |
| Application | Industrial ceramic components |
| Temperature resistance | 1200 degrees |
Figures are taken from the published product specification. Values not listed are marked TBC and confirmed against your drawing before quotation.
Quality Control
- Ground dimensions verified against the plus or minus 0.005 mm tolerance
- Face flatness inspected on seal rings
- Inspection report issued to your drawing on request
Certifications
No third party certification documents are published for this product. Every shipment is inspected to your drawing with an inspection report issued. Certification status is TBC and confirmed on request.
Customization Options
- Ring, cylinder, sleeve and bushing geometry from your drawing
- Matched face pairs supplied together
- Chamfers, grooves and drive slots ground as required
Comparison With Other Ceramics
Alumina costs less and handles clean duty well. Silicon carbide is the upgrade when the medium is abrasive or hot, and it is harder than zirconia, although zirconia remains tougher where the part takes impact.
Use Guide
- Order seal faces as a matched pair rather than sourcing the two halves separately
- Give the flatness and surface finish requirement on the drawing, not just diameters
- Avoid dry running a SiC face pair during commissioning
Industries Using This Part
Related Application Notes
SIC Silicon Carbide Ceramic Ring Cylinder FAQ
What tolerance can you hold?
Plus or minus 0.005 mm on ground features.
What temperature does SiC handle?
High temperature resistance of 1200 degrees, with good thermal shock behaviour under rapid temperature change.
Can you supply matched seal face pairs?
Yes. Shape and size are custom, and pairs are supplied together so the faces are matched.
Is SiC better than alumina for my pump?
If the medium is abrasive or hot, yes. For clean, cool duty alumina is usually the economic choice.
Do you quote from drawings?
Yes. Send the drawing and the dimensions with their tolerances.
What are the payment terms?
Up to 1000 USD, 100% in advance. From 1000 USD, 50% T/T in advance with the balance before shipment.
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