
graphite carbon felt
If you're in the market for insulation for your high temperature vacuum furnace, then you might want to consider Graphite Rigid Felt. This versatile and lightweight insulation material has a number of properties that make it an ideal choice for those looking for superior insulation at high temperatures.
Description
Graphite Carbon Felt for Industrial Furnaces
For over 25 years, SHJ Carbon has specialized in engineered graphite and carbon-based insulation solutions. Our graphite carbon felt delivers precise performance in industrial furnaces that demand stability, efficiency, and long service life. As a trusted partner to global heat-treatment and metallurgical industries, we provide tailored furnace insulation materials that meet the toughest thermal challenges.
Compared with ceramic fiber or rigid boards alone, SHJ Carbon's graphite carbon felt provides a unique balance of insulation efficiency, flexibility, and purity. For higher structural requirements, we also offer rigid graphite felt that complements our standard felt in door frames and load-bearing areas.

Key Features & Benefits
Our furnace insulation portfolio is engineered to solve the real problems operators face in daily production. The features of SHJ Carbon's thermal insulation felt include:
- Consistent performance under rapid heating and cooling cycles
- Mechanical stability and resilience across long service life
- Compatibility with rigid graphite boards for hybrid hot-zone designs
- Availability in rolls, sheets, and custom pre-cut kits for faster installation
TAICHIRON@ Series rigid & Soft insulation
SHJ CARBON presents TAICHIRON@ carbon felt, a series inspired by the harmony of yin and yang. Combining the flexibility of soft felt with the strength of rigid felt, TAICHIRON@ delivers reliable high-temperature insulation for demanding furnace and thermal applications. In vacuum and inert atmospheres, our carbon felt and graphite felt ensure low thermal conductivity, uniform heat distribution, and stable process conditions. Designed for high purity, durability, and long service life, TAICHIRON° reflects both technical excellence and the enduring balance required in advanced industries.
Thermal Insulation Rigid Felt
| Product | Bulk Density | Compressiv Strength |
e Thermal Conductivity (@1000℃) |
Ash Purification |
Maximum Operating Temperature |
| PAN-Based | 0.16g/cm³ | 0.25MPa | 0.35W/(m.k) | ≤20ppm | ≥2000℃ |
| PAN-Based | 0.2g/cm³ | 0.35MPa | 0.3W/(m.k) | ≤20ppm | ≥2000℃ |
| Viscose-Based (Long Fiber) |
0.18/cm³ | 0.25MPa | 0.3W/(m.k) | ≤20ppm | ≥2200℃ |
| Viscose-Based (Short Fiber) |
0.15/cm³ | 0.25MPa | 0.25W/(m.k) | ≤20ppm | ≥2200℃ |
Thermal Insulation Soft Felt
| Product | Bulk Density | Thermal Conductivity (@1000℃) |
Ash Purification |
Operating Temperature |
Available Sizes |
| PAN-Based | 0.13g/cm³ | 0.2W/(m.k) | ≤20ppm | ≥2000℃ | 10x1200*20000mm 5x1200*20000mm |
| PAN-Based | 0.15g/cm³ | 0.15W/(m.k) | ≤20ppm | ≥1800℃ | 3x1500*20000mm 10x1200*20000mm |
| Viscose-Based | 0.12/cm³ | 0.13W/(m.k) | ≤20ppm | ≥2200℃ | 3x1200*27000mm 5x1200*27000mm 10x1200*27000mm |
Applications for Carbon Felt Insulation
Vacuum Heat-Treatment Furnaces
Our graphite carbon felt ensures precise insulation in vacuum heat-treatment furnaces, supporting processes such as carburizing, annealing, and brazing. With low thermal conductivity and high purity, it maintains clean atmospheres, reduces heat loss, and enables consistent part quality across demanding production cycles.


Graphitization and Sintering Units
For ultra-high temperature operations, our carbon felt insulation provides a stable lining material in graphitization and sintering units. It withstands repeated exposure to extreme heat, maintains dimensional stability, and helps improve energy efficiency in metallurgical processes where reliability and consistency are critical.
Induction and Laboratory Furnaces
Research and pilot-scale furnaces require adaptable insulation solutions. Our graphite felt for furnaces combines flexibility and performance, making it easy to install in induction and laboratory systems. It delivers reliable thermal insulation, supports rapid heating cycles, and keeps operating conditions stable for accurate experimental results.

Why Choose SHJ CARBON
Technology First
We offer a variety of transmission components
25+ Years of Industry Experience
Proven expertise in carbon and graphite insulation for high-tech manufacturing.
Trusted by Top Manufacturers
Long-term supplier to leading electronics, semiconductor, and solar PV companies.
Custom Engineering Support
Tailored designs in boards, cylinders, and complex 3D shapes to match exact specifications.
Advanced Production & Purification
Secondary high-temperature treatment up to 2800 °C for exceptional purity.
Surface Treatment & Customization Options
SHJ CARBON offers a range of surface treatments and customization options to meet your specific operational requirements:
- Edge Sealing – Prevents particle shedding and improves material integrity.
- Corrosion Protection – Specialized coatings that enhance the material's resistance to chemical damage in harsh environments.
- Laminated Graphite Foil Layers – Adds extra strength and heat resistance, perfect for more demanding applications.
- 3D Shaped Processing – Custom-made to fit complex furnace geometries or specialized heat shield designs.
- Custom Finishes for Different Applications – Tailored surface treatments to enhance durability, energy efficiency, and performance.
|
Surface Treatment Type |
Protection Against Dust |
Airtightness |
Surface Protection |
Shock Resistance |
Key Advantages |
|
No Surface Treatment |
– |
– |
– |
– |
– |
|
Graphite Paper Lamination |
○ |
○ |
○ |
○ |
Good air permeability and low cost |
|
Carbon Cloth Lamination |
○ |
○ |
○ |
○ |
Anti-dust penetration and heat loss |
|
Special Coatings |
◎ |
◎ |
◎ |
◎ |
High protection strength, long service life |
|
Special Coatings (Enhanced) |
◎ |
◎ |
◎ |
◎ |
Anti-dust penetration, high protection performance, high purity |
FAQs – Graphite Carbon Felt in Industrial Furnaces
Our insulation maintains structure and insulation value across many thermal cycles, ensuring reliable service life.
Yes, SHJ Carbon felt adapts easily to most furnace designs. Pre-cut kits speed up retrofits.
Graphite carbon felt operates at higher temperatures, offers cleaner atmospheres, and delivers more stable insulation.
Yes, our engineers provide application guidance, drawings, and installation advice based on your furnace type.
Get in Touch – Request a Quote
Ready to enhance your thermal management systems with high-performance carbon felt insulation? Reach out today for expert advice, customized solutions, and fast delivery.
Contact Us Now or Request a Quote.
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