Thick-Wall Pressureless Sintered Silicon Carbide Roller | High-Load Capacity & Thermal Stability
Our thick-wall pressureless sintered silicon carbide (SSiC) roller is engineered to overcome the limitations of conventional rollers, which typically feature wall thicknesses of only 6-8mm. Available in two standardized specifications—40mm OD * 20mm ID and 45mm OD * 20mm ID—this roller delivers exceptional structural strength, thermal stability, and wear resistance.
Key Features & Advantages
- Reinforced Structural Integrity: With a wall thickness of 10-12.5mm, the roller provides superior load-bearing capacity and resistance to mechanical stress, high-temperature scouring, and corrosive atmospheres.
- Exceptional Thermal & Mechanical Properties: Combines high thermal conductivity (196 W/m*K at 20°C), outstanding thermal shock resistance (>350°C ΔT), and extreme hardness (2350 HV) to ensure longevity under cyclic heating and abrasive conditions.
- Optimized Manufacturing Process: Produced via pressureless sintering, the roller achieves near-zero porosity (≈0%) and a dense, uniform microstructure for consistent performance.
- Proven Industrial Validation: The 40mm OD variant is mass-produced and widely adopted, while the 45mm OD version is process-optimized and rigorously tested for enhanced durability.
Technical Specifications
| Property |
Unit |
Value |
| Composition: SiC |
Vol% |
≥98 |
| Density @ 20 °C |
g/cm³ |
≥3.06 |
| Open Porosity |
Vol% |
≈0 |
| Vickers Hardness (HV1) |
kg/mm² |
2350 |
| Flexural Strength @ 20 °C |
MPa |
320-400 |
| Thermal Conductivity @ 20 °C |
W/(m*K) |
196 |
| Max. Service Temperature (in air) |
°C |
1650 |
| Thermal Shock Resistance |
ΔT °C |
>350 |
Customization Options
We support tailored solutions with extrusion molding capabilities for rollers up to:
- Maximum Diameter: 90mm
- Maximum Wall Thickness: 15mm
- Maximum Length: 4 meters
Applications
- Photovoltaic Glass Manufacturing: Withstands high temperatures and corrosive environments in glass tempering kilns.
- Lithium Battery Material Processing: Ideal for sintering furnaces requiring purity and thermal shock resistance.
- Ceramic & Tile Production: Durable performance in roller kilns under mechanical and thermal stress.
Why Choose Our SiC Roller?
- Extended Service Life: Reduced wear and deformation under load translate to lower replacement frequency and downtime.
- Energy Efficiency: High thermal conductivity ensures uniform heat distribution, optimizing process efficiency.
- Rapid Deployment: Standardized sizes enable faster validation and delivery, while custom designs are supported for specialized needs.
Packaging & Shipping