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Alumina Ceramic Sleeve for Pneumatic Conveying Systems
Product Description
Alumina ceramic sleeves are cylindrical wear-resistant liners used inside steel pipes in pneumatic conveying systems. Made from 95% alumina ceramic, they protect the inner wall of pipelines from abrasion caused by high-velocity powders and particles.
The continuous sleeve structure provides full-circumference wear protection and a smooth material-contact surface. It is suitable for conveying cement powder, fly ash, coal powder, mineral fines, lithium battery raw materials, and other abrasive bulk materials.
Outer diameter, inner diameter, length, and ceramic thickness can be customized according to the pipe drawing and required finished bore.
Typical Lining Structure
When installed in a ceramic-lined pipe, the typical structure consists of:
- Steel outer pipe
- High-strength adhesive layer
- 95% alumina ceramic sleeve
The steel pipe material, adhesive thickness, and ceramic thickness are selected according to the project drawing and operating conditions.
Technical Parameters
| Item |
Specification |
| Ceramic Material |
95% Alumina Ceramic |
| Al₂O₃ Content |
≥95% |
| Density |
≥3.75 g/cm³ |
| Rockwell Hardness |
≥85 HRA |
| Vickers Hardness |
≥1200 HV10 |
| Fracture Toughness |
≥4.0 MPa·m¹/² |
| Bending Strength |
≥330 MPa |
| Structure |
Cylindrical / Integral Ceramic Sleeve |
| Size |
Customized According to Drawing |
Product Features
- High wear resistance
- Smooth material-contact surface
- Full-circumference pipe protection
- High hardness and good corrosion resistance
- Stable bonding after proper installation
- Customized dimensions for different pipe sizes
Applications
Alumina ceramic sleeves are mainly used for wear protection in pneumatic and powder conveying pipelines, including:
- Cement and clinker powder conveying
- Fly ash conveying
- Coal powder handling
- Mineral and mining material transport
- Steel plant powder conveying
- Lithium battery raw material conveying
They can be used in straight pipe sections and other specially designed ceramic-lined pipe components according to the approved drawing.
Customized Processing
Alumina ceramic sleeves can be manufactured according to customer drawings or pipe dimensions.
For customized production, please provide the required outer diameter, inner diameter, length, ceramic thickness and dimensional tolerance. If the ceramic sleeve will be installed inside a steel pipe, the steel pipe size and required finished internal diameter should also be confirmed before production.
How to Choose the Right Alumina Ceramic Sleeve?
Ceramic sleeve selection should be based on both pipe dimensions and actual operating conditions.
For pneumatic conveying applications, we normally recommend confirming:
- Conveying material
- Particle size
- Conveying velocity
- Operating temperature
- Working pressure
- Steel pipe inner diameter
- Required finished bore
- Ceramic thickness
- Connection and installation requirements
These details help ensure that the ceramic sleeve matches both the pipeline and the actual wear condition.
Precautions
Ceramic sleeves should be protected from strong impact or collision during transportation and installation.
Before bonding, the steel surface and ceramic bonding surface should be clean and dry. The adhesive should also be selected according to the operating temperature and working environment.
After installation, sufficient curing time should be allowed before the pipeline is put into service.
FAQ
Q1: What alumina content do you normally use?
A1: Our standard wear-resistant ceramic sleeve is made from 95% alumina ceramic.
Q2: What materials can be conveyed?
A2: Typical materials include cement powder, fly ash, coal powder, mineral fines, lithium battery raw materials and other abrasive powders.
Q3: Can the ceramic sleeve size be customized?
A3: Yes. Outer diameter, inner diameter, length, and wall thickness can be manufactured according to drawings.
Q4: What information is required for quotation?
A4: Please provide the ceramic sleeve dimensions or pipe drawing together with the conveying material and operating conditions.
Q5: Can the ceramic sleeve be supplied for different steel pipe sizes?
A5: Yes. The ceramic dimensions can be designed according to the steel pipe and required finished internal diameter.
Q6: Do you provide technical support for customized projects?
A6: Yes. Drawings and operating conditions can be reviewed before production
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