Why Choose Our Graphite Insulation Board？
- With over 10 years of experience in processing graphite insulation boards, our products are exported to many countries.
- We have a team of professional engineers who provide one-stop services covering material selection, processing, and testing.
- With over 22 production lines and a well-established supply chain, we support both small and large batch orders and offer a stable supply.
- All graphite insulation boards from our factory undergo more than 30 quality tests, achieving very high reliability.
- All graphite insulation boards have been certified to ISO 9001:2008, ISO 14001, IATF 16949, and ISO 45001.
- Short lead times of 3 to 7 days help accelerate project progress and shorten time-to-market
Your Reliable Graphite Insulation Board Supplier in China
GALLOP INNOTEK provides high-quality graphite insulation board solutions for high-temperature applications. As a Chinese supplier with over 10 years of experience, we offer graphite insulation boards with excellent thermal insulation performance, high-temperature resistance, and reliable structural stability for industrial furnaces and heat treatment equipment, thereby improving furnace efficiency and reducing heat loss.
Thanks to advanced manufacturing capabilities and strict quality control, we offer custom sizes, densities, and machined components to meet different furnace design requirements. Our team provides OEM and customized solutions for projects such as semiconductor manufacturing, photovoltaic production, metallurgy, and vacuum furnace systems, offering long-term operational reliability.
Features of GALLOP INNOTEK Graphite Insulation Board
Our Graphite insulation boards have an extremely low density and a porous structure, resulting in a low thermal conductivity (less than 1 W/m·K).
GALLOP INNOTEK’s graphite thermal insulation boards are highly reliable and resistant to cracking even under frequent thermal cycling.
Our graphite insulation boards offer a more lightweight structure while maintaining high strength. This reduces mechanical load.
Our graphite insulation boards can withstand chemical reactions at high temperatures in vacuum or inert gas environments, offering stable performance and long-term reliability.
Reliable Performance in Extreme Environments
GALLOP INNOTEK graphite insulation boards can withstand extremely high temperatures, typically reaching 2000°C or higher in vacuum or inert atmospheres. Unlike many traditional insulation materials, our graphite insulation boards have stable structure and thermal insulation properties even when exposed to high temperatures for a long time. So they are an ideal choice for harsh thermal environments such as vacuum furnaces, crystal growth equipment, and high-temperature sintering systems.
Custom Machining for Complex Designs
Thanks to the excellent machinability of graphite insulation boards and GALLOP INNOTEK’s professional engineering team, we offer fully customized graphite insulation boards. You can customize graphite insulation boards into different complex shapes, such as plates, rings, and cylinders. We can cut them precisely to fit your application, and they can be integrated into different furnace systems, thereby improving installation efficiency and thermal insulation performance.
Long-Term Cost Efficiency
In addition to high-temperature resistance, our graphite insulation boards offer good chemical stability, resistance to thermal degradation, and thermal shock resistance. They offer a long life even under harsh operating conditions. These boards can withstand repeated heating and cooling cycles without cracking or decomposing. You can use them for furnaces and kilns that undergo frequent start-up and shutdown cycles, as well as high-temperature processing projects. They reduce maintenance frequency and also saves operating costs, so it is a cost-effective insulation solution.
Applications of Graphite Insulation Board
Our graphite insulation panels meet the stringent requirements of high-temperature semiconductor and electronics processing. You can use them in crystal growth furnaces, CVD systems, and high-temperature annealing systems to achieve precise temperature control during monocrystalline silicon production, thin-film deposition, and semiconductor processing, thereby improving process quality and stability.
GALLOP INNOTEK’s graphite insulation boards can be used for linings, insulation layers, and outer casings in vacuum furnaces, sintering furnaces, and heat treatment furnaces. Our graphite insulation boards effectively prevent heat loss, maintain stable temperatures, and achieve more uniform heat distribution. You can achieve better sintering quality while reducing energy loss and saving on energy costs.
If you are looking for the right insulation material for energy and battery manufacturing, GALLOP INNOTEK offers high-quality graphite insulation board solutions. We can help you achieve better temperature control, improve yield rates, and reduce material waste during graphitization and carbonization processes. You can also use it in high-temperature material processing to reduce temperature fluctuations.
Our graphite insulation boards can withstand temperatures of approximately 2,000°C or higher, providing thermal insulation for metallurgical and materials processing applications under extreme temperatures. GALLOP INNOTEK’s graphite insulation boards maintain stable performance at high temperatures, protecting precision-sintered metals while safeguarding furnace structures and minimizing heat loss.
Our graphite insulation panels provide reliable thermal insulation. In silicon ingot growth furnaces, these panels maintain a stable thermal environment, which helps produce high-quality crystals and improves production efficiency. Our graphite insulation panels also offer outstanding high-temperature resistance, reducing thermal shock to the equipment caused by high temperatures.
Graphite insulation boards and carbon felt are both high-performance insulation materials. Graphite insulation boards are rigid and offer mechanical strength and structural support, and can be used for structural insulation assemblies and machined furnace components. Carbon felt, on the other hand, is a soft, flexible, and fibrous material that is more advisable for complex geometries. You can also use them together to achieve enhanced thermal insulation performance.
Yes. Because of graphite’s high electrical conductivity, graphite insulation boards are also electrically conductive. Therefore, when selecting them as high-temperature insulation materials, you must also consider electrical safety. You should make sure to use proper electrical isolation to prevent risks such as short circuits.
Sure. Graphite insulation boards can be used in vacuum environments and inert gas atmospheres, and they achieve stable performance in high-temperature vacuum environments. You can use them in the insulation system of a vacuum furnace. They help maintain stable temperatures in the furnace, reduce heat loss, and improve thermal efficiency. In addition, their good machinability allows them to be fabricated into custom components for complex furnace insulation structures.
Both graphite insulation boards and ceramic fiber insulation materials are types of thermal insulation. Although graphite boards are more expensive, they can withstand higher temperatures and typically withstand temperatures exceeding 2000°C in controlled environments. Ceramic fiber insulation materials, on the other hand, are typically used in lower temperature ranges (around 1260°C). Graphite insulation boards are used in vacuum or inert atmospheres, and ceramic fiber insulation can be used in air.
Graphite insulation boards are highly durable and have a long service life. If the graphite insulation board has no damage or oxidation, and its thermal insulation performance still meets your needs, you can reuse it. Although proper use and maintenance can extend its service life, if you are seeking the best performance, it is best to use a new one.
Aged graphite insulation boards may have problems such as powdering, thinning, and shrinkage. You can determine whether they need to be replaced by observing and touching them. They may even collapse or develop cracks. Additionally, if their insulation performance declines—for example, if they require more energy to maintain the same level of insulation—you need to replace them as soon as possible.
First, graphite insulation boards used in vacuum or inert atmospheres are prone to oxidative corrosion, which can lead to failure. Therefore, you should make sure that the product is tightly sealed and the gas purity is higher. Second, graphite materials should not be used in applications involving molten metals such as aluminum, copper, or titanium, as this can cause corrosion. In addition, thermal stress, physical abrasion, and improper installation can also shorten the service life.
What is the Graphite Insulation Board?
Graphite insulation boards are manufactured using high-purity graphite or expanded graphite through processes such as pressing, sintering, or lamination. They can withstand temperatures of approximately 2,000°C and offer great chemical resistance and low thermal conductivity.
Thanks to their porous microstructure and the layered structure of graphite, their thermal conductivity is less than 1 W/m·K, which helps reduce heat loss in equipment used in ultra-high-temperature applications and improves energy efficiency.
Function of the Graphite Insulation Board
Thermal Insulation
Graphite insulation boards have a low-density, porous graphite structure filled with air or a vacuum, both of which have very low thermal conductivity. This results in very low thermal conductivity, effectively blocking heat transfer. Therefore, you can use it in industrial furnaces and similar equipment to effectively prevent heat loss and confine heat within the heating zone.
On the one hand, this reduces energy consumption and lowers energy costs. On the other hand, it also protects temperature-sensitive components from damage caused by high temperatures.
Thermal Shock Resistance and Uniform Heat Distribution
Graphite insulation boards offer high stability and can withstand rapid heating and cooling cycles. In applications having frequent and rapid temperature fluctuations, graphite insulation boards are resistant to cracking or deformation, providing you with greater stability and safety.
Additionally, graphite insulation boards absorb and reflect heat, resulting in more uniform temperatures, preventing excessive temperature variations, and improving production quality and operational stability.
Structural Support and Shape Retention
Graphite insulation boards have a certain degree of mechanical strength and can be made into different shapes. They maintain their structural integrity in long time even under extreme temperatures. As a result, they can provide structural support for your products. For example, you can use them as structural insulation linings, insulation sleeves, and support plates for vacuum furnaces and crystal growth furnaces.
How does Graphite Insulation Board Work?
Impede Heat Transfer
Although graphite insulation boards are solid materials, they have a porous structure filled with microscopic voids. Unlike dense graphite sheets, which have extremely high thermal conductivity, the voids in graphite insulation boards prevent the formation of solid heat transfer pathways.
As a result, their solid heat transfer efficiency is extremely low. At high temperatures, heat cannot easily pass through the graphite insulation boards to the outside and instead accumulates inside.
Reflected Thermal Radiation
Thermal radiation transfers heat through absorption, reflection, and transmission, while graphite insulation boards reflect thermal radiation to prevent heat loss. On the one hand, thermal radiation cannot penetrate the graphite insulation boards. Instead, it is absorbed, causing the temperature of the boards to rise.
On the other hand, the heated insulation boards become new sources of radiation, emitting radiant energy. Through repeated cycles of absorption, heating, and re-radiation, the thermal radiation energy gradually diminishes and is less transferred to the outer layers.
Suppress Gas Convection
As gases flow, they carry heat, facilitating heat transfer. Graphite insulation boards are primarily used in vacuum environments and inert atmospheres. In vacuum environments, gas molecules are extremely scarce, resulting in virtually no gas convection, which prevents heat transfer. In inert atmospheres, the porous structure of graphite insulation panels restricts gas flow, minimizing convective heat transfer.
How to Choose the Right Graphite Insulation Board?
Choose based on Operating Temperature
The best operating temperature of different graphite insulation board model are different. Exceeding this temperature may result in reduced performance or a shorter service life. You should select a graphite insulation board based on the highest temperature your product make during use. Our graphite insulation boards can withstand temperatures up to 3000°C in a vacuum or inert gas environment, meeting the requirements of most applications.
Choose the Right Density
Thermal insulation boards with lower density have lower thermal conductivity and better insulation, but lower isn’t always better. Thermal insulation boards with higher density offer greater mechanical strength, they are more robust and durable. Therefore, you should balance durability and insulation performance based on your application.
Select Proper Thickness
Thicker graphite insulation panels have a higher ability to reflect thermal radiation and are more effective at blocking heat transfer. However, greater thickness takes up more space, increases weight, and incurs higher costs. Therefore, for applications with space or weight constraints, or for projects with tight budgets, you need to evaluate the appropriate thermal conductivity and select the appropriate thickness for the graphite insulation panels.
Custom Graphite Insulation Boards
If the standard sizes of our graphite insulation panels do not meet your requirements, or if you need them cut to precise dimensions, we can provide custom designs. Our graphite insulation panels can be precision-machined using CNC technology to better fit your equipment, reduce installation costs, and maximize thermal insulation performance.
