zhengzhou kerui (group) refractory co.,ltd
Provide Leading Solutions for High Temperature Kilns

Ceramic Fiber Bulk

Ceramic fiber bulk has a wide range of applications for insulation and sealing. In addition, it comes with different manufacturing processes and features. If you’re looking for high quality products, why not consider Kerui?

  • 35-52%

    Al2O3 (≥)

  • 47-55%

    SiO2 (≥)

  • 1260-1430ºC

    Operating Temperature

  • 2-5μm

    Fiber Diameter


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KERUI Ceramic Fiber Bulk

Technical Data Sheet of Kerui Ceramic Fiber Bulk

Here are different types of ceramic fiber wool for you to choose from. They have different chemical indicators and performance properties. Kerui ceramic fiber cotton is made of high-purity silicon and aluminum raw materials using spinning or blowing processes. In addition, in the vacuum forming process, ceramic bulk fiber is the basis for ceramic fiber blankets, boards, papers and other products. No matter which ceramic fiber wool you choose, they all offer excellent performance.

The following data comes from multiple tests in Kerui laboratory and the best combination derived from market feedback. If you have additional needs, please contact Kerui and we will provide customized solutions.

Item/GradeSTD BulkHP BulkHA BulkHZ Bulk
Classification Temperature/ºC126012601260126013501430
Chemical Compositionω (Al2O3) ≥/%434343445235
ω (SiO2) ≥/%545454554749
ω (ZrO2) ≥/%/////15
Shot Content ≤/%151512151512
Fiber Diameter (μm)3-52-42-43-52-43-5

Wire Throwing Ceramic Fiber Bulk
High Quality Ceramic Fiber Cotton
Spray Ceramic Fiber Bulk

2 Different Manufacturing Process of Ceramic Fiber Cotton

In order to achieve different product properties, Kerui mainly uses two manufacturing processes: spray (also called spinning) and wire throwing. Both of these two manufacturing process brings excellent performance. They come into different features and applications. Please keep reading to know which manufacturing process is more suitable to you:

Good Thermal Shock Resistance
Good Chemical Stability
High Refractoriness
Low Thermal Conductivity
Environmentally Friendly
Good Sound Absorption

1. Spray Ceramic Fiber Bulk

Spray ceramic fiber insulation bulk does not contain binders and has low slag ball content. From a technical perspective, the spray ceramic fiber cotton has a smaller diameter usually at 2.0-4.0 μm and a longer length about 100-200 mm. Due to its excellent structure and lower thermal conductivity, it can achieve good thermal insulation effect. In addition, spinning ceramic fiber cotton is more suitable as a raw material for ceramic fiber blankets or modules. Besides, this high quality ceramic fiber insulation material is also easy to shred or cut into required shapes.

2. Wire Throwing Ceramic Fiber Bulk

Kerui wire throwing ceramic fiber cotton comes with double-sided needle punching process. Therefore, it forms a tough and high-rebound structure. The throwing ceramic cotton has a diameter of 3.0-5.0 μm and a length of about 150-250 mm. Using the throwing process, ceramic fiber wool can form a tight thermal insulation layer. This product has good tensile strength and is durable. This twisted ceramic fiber wool is often added to ceramic fiber cloth, belts, ropes to enhance toughness. In addition, the product exhibits excellent tear resistance both before and after heating.

Buy Ceramic Fiber Bulk
KERUI Ceramic Fiber Cotton

Classic Application of Ceramic Fiber Bulk

Used as Insulation Layer

Kerui ceramic fiber bulk is an excellent thermal and insulation material. Using large ceramic fiber wool as the insulation layer of industrial kilns can not only reduce the difficulty of construction, but also greatly improve the insulation effect. The lower thermal conductivity can effectively improve overall energy utilization.

  • Thermal insulation materials for thermal reactors and incineration equipment;
  • Insulation of wall expansion joints;
  • Filling expansion joint;

Used as Lining of Kiln

The furnace and furnace lining are important parts of the industrial furnace. In complex working environments such as high temperatures and chemical erosion, ceramic fiber wool maintains a good structure with its excellent performance. Use this product in industrial kiln linings to resist high temperatures and chemical corrosion.

  • Raw materials for fiber coating materials;
  • Fiber castable and coating raw materials;
  • Wall lining filler for high temperature furnace heating equipment;

Used as Insulation for Other Parts

High-temperature industrial furnaces involve many corners, door gaps, furnace lids and other complex parts, which are also the main areas for heat loss. At this time, the good refractory ceramic fiber wool has a good sealing effect with its flexible shape. Customers can use high-quality ceramic fiber wool to avoid energy loss.

  • High temperature furnaces, heating devices, wall lining gap filling materials;
  • fire door fillers;
  • kiln car filling;

Used for Repair and Maintenance

In a long-term high-temperature working environment, industrial kilns will inevitably suffer from wear, damage and other problems. Kerui ceramic fiber wool is suitable for repairing furnace bodies and can quickly protect the stable operation of the furnace. This product has excellent performance and can extend the service life of the kiln.

  • Repair of high-temperature sintering kilns;
  • Short-term repair of chemical industry kilns;
  • Quick repair of fire-resistant fuel stoves;

Buy Ceramic Fiber Bulk from Kerui Refractory

Better Quality

Kerui Refractory ensures the ceramic bulk fiber meets the highest standards of quality. We source premium raw materials and employ advanced manufacturing processes to create a product known for its durability, insulation properties, and reliability. Additionally, our product has ISO, CE, SGS and many other international certificates.

More Reasonable Price

As the source ceramic fiber manufacturer in China, Kerui offers ceramic fiber bulk at more reasonable prices. By eliminating intermediaries, we provide cost-effective solutions directly to our customers. Moreover, bulk purchases benefit from attractive discounts. This makes Kerui Refractory the go-to source for those looking for high-quality ceramic fiber at competitive and budget-friendly rates.

Quicker Delivery

The standard ceramic fiber products are readily available in stock for immediate dispatch. Even for customized orders, we pride ourselves on efficient production processes that allow us to complete shipments within 7 days. Whether you opt for standard or personalized products, we prioritize fast delivery.

Better Service

Kerui Refractory not only provide hsigh-quality products, but also offers a comprehensive and personalized service experience. The one-stop service that guides you from product selection to final technical guidance. Our dedicated business managers maintain close communication, which ensures that your needs are understood and addressed promptly. You can see more details at kerui Pinterest. With Kerui Refractory, you gain a partner committed to providing not only ceramic fiber bulk but also unparalleled service that adds value to your projects.

Kerui QMS Certificate
QMS Certificate
Kerui OHSM Certificate
OHSM Certificate
Kerui EMS Certificate
EMS Certificate
Kerui CE Certificate
CE Certificate

Delivery of Kerui Ceramic Fiber Products

To purchase ceramic fiber bulk for your kiln and furnace, please contact Kerui Refractory. We will assist you in selecting the right product and provide competitive pricing. Moreover, there is an arrurance about a smooth and hassle-free buying experience.

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