graphite carbon felt

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.

 

graphite rigid felt

 

 

 

 

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.

Maintenance Replacement Services

fine grain graphite for furnace

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.

fine grained graphite for lab

 

 

 

 

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

 

 

 

1. How long does SHJ Carbon felt last in continuous operation?

Our insulation maintains structure and insulation value across many thermal cycles, ensuring reliable service life.

2. Can it retrofit existing hot zones?

Yes, SHJ Carbon felt adapts easily to most furnace designs. Pre-cut kits speed up retrofits.

3. What is the main advantage over ceramic fiber?

Graphite carbon felt operates at higher temperatures, offers cleaner atmospheres, and delivers more stable insulation.

4. Do you provide engineering support?

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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