Ceramic Wool Blankets
Ceramic Wool Blankets

Ceramic Wool Blankets

Ceramic Fiber Insulation Blanket is manufactured by melting coal gangue, coke gem, alumina, silica, zirconia and other high-quality raw materials through an electromelting process, followed by a fiber spinning process. After needling and heat treatment, the fibers are evenly interwoven to achieve high tensile strength and structural stability. The product contains no bonding agents and offers excellent resistance to chemical erosion. Ceramic Fiber Insulation Blanket is widely used in applications requiring fire resistance, thermal insulation, and heat preservation, including industrial furnaces, kilns, heat treatment equipment and high-temperature environments.

Ceramic Fiber Insulation Blanket Roll

SHENZHOU manufactures flexible ceramic fiber insulation blanket rolls for furnaces, kilns, process heaters, high-temperature pipes and industrial thermal insulation systems. The blanket is produced from spun ceramic fibers and reinforced through a needling process, creating a strong, flexible insulation material without added bonding agents.

Ordinary, standard, high-purity, high-alumina and zirconium-containing grades are available for different operating temperature requirements. Depending on the selected grade, the listed operating temperature ranges from 950°C to 1350°C.

The roll format can be cut, folded and fitted around equipment or lining structures, making it suitable for hot-face lining, backup insulation, pipe wrapping, furnace doors and expansion joints. For other product forms, explore our complete range of ceramic fiber wool insulation.

 

Ceramic Fiber Blanket Features

  • ♦  Low thermal conductivity: Helps reduce heat transfer through furnace walls, kiln structures, pipes and industrial equipment.
  • ♦  Thermal shock resistance: Suitable for equipment that experiences repeated heating and cooling cycles.
  • ♦  Needled construction: Interlocked fibers provide handling strength and help the blanket resist tearing during cutting and installation.
  • ♦  Binder-free composition: The blanket does not rely on an organic bonding agent to maintain its structure.
  • ♦  Multiple temperature grades: Standard, high-purity, high-alumina and zirconium-containing options support different process temperatures.
  • ♦  Chemical stability: Provides resistance to many common industrial operating environments; compatibility should still be confirmed for specific chemicals.
  • ♦  Flexible roll format: Can be cut and fitted around curved surfaces, pipes, furnace doors and irregular equipment profiles.
  • ♦  Low-weight insulation system: Helps reduce the structural load compared with many dense refractory lining materials.

Product Features

Product

Type

Category

Temperature℃

Recommended

Temperature℃

Common Type

1000

≤800℃

Standard Type

1200

≤1000℃

High Purity Type

1250

≤1100℃

High Aluminum Type

1350

≤1200℃

Zirconium-containing

1400

≤1250℃

Chromium Containing Type

1500

≤1350℃

 

Technical Data

 

Product Classification

Ordinary Type

Standard Type

High Purity Type

High Aluminum Type

Zirconium Type

Implementation Standard

Product Code

SZJN-PT-T

SZJN-BZ-T

SZJN-GC-T

SZJN-GL-T

SZJN-HG-T

GB/T 16400-2015

Operating Temperature (℃)

950

1000

1100

1200

1350

Density (kg/m³)

96~128

Pellet Content (%)

Particle Size >0.212 mm

≤20

≤20

≤20

≤15

≤15

Heating Permanent Linear Change

950 ℃×24 h ≤4

1000 ℃×24 h ≤4

1100 ℃×24 h ≤4

1200 ℃×24 h ≤4

1350 ℃×24 h ≤4

Thermal Conductivity {W/(m·K)}

Average Temperature 500 ℃

≤0.161

≤0.156

≤0.153

Tensile Strength (MPa)

≥0.04

Chemical Composition (%)

Al₂O₃

≥40

≥43

≥44

≥52

≥52

Al₂O₃+SiO₂

≥95

≥96

≥98

Al₂O₃+SiO₂+ZrO₂

≥99

≥99

ZrO₂

≥15

≥15

Fe₂O₃

≤1.0

≤1.2

≤0.2

≤0.2

≤0.2

Note: Regular models: (length) 3000/4000/5000/7200/14000 × (width) 610 × (thickness) 10/20/30/40/50/60 (mm) Packing style: white woven bag

The above technical parameters are measured according to the average value of the testing standard; the data will fluctuate within a certain range, and the actual product test value shall prevail.

Application

Industrial Furnaces and Kilns

Used as hot-face or backup insulation in heat-treatment furnaces, reheating furnaces, ceramic kilns, annealing equipment and other high-temperature processing systems.

Petrochemical Process Equipment

Suitable for process heater linings, high-temperature pipe insulation, duct insulation, seals and expansion joints where low thermal conductivity and thermal shock resistance are required.

Steel and Metallurgy

Applied in furnace walls, furnace roofs, door seals and selected ladle or heat-processing insulation structures. The appropriate grade should be selected according to temperature and mechanical exposure.

Boilers, Pipes and Ducts

A ceramic fiber insulation blanket roll can be wrapped around high-temperature pipes, boilers and ducts or incorporated into removable insulation systems.

Power and Energy Equipment

Used for thermal insulation around selected turbines, boilers, exhaust systems and high-temperature power-generation equipment.

Marine and Fire Protection Systems

Ceramic fiber blankets may be incorporated into marine or passive fire-protection assemblies. Material temperature resistance alone does not represent the fire rating of a complete system; buyers should confirm the required assembly test standard and certification.

For fire-rated ventilation and smoke-exhaust duct applications, see our aluminum silicate flexible fireproof wrap.

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