Alumina-silicate needled blanket

Production Process

Alumina-silicate needled felt is produced by melting bauxite and coal gangue at high temperatures to remove impurities, spinning them into fibers, and then undergoing processes such as heat setting, longitudinal and transverse cutting, and rolling. The products are categorized into: general type, standard type, high purity type, high aluminum type, zirconium-aluminum type, and zirconium-containing type. The alumina-silicate needled felt does not use any binders, ensuring excellent reliability and stability in various environments.

Guoyang's glass wool needled felt has even diameter, long fibers, and low slag content. The needle-punching process enhances the interweaving of the fibers, resulting in better resistance to delamination and wind. Our products, made with high-purity raw materials, improve toughness and tensile strength, reducing material waste. The needled felts with different contents, bulk densities, and thicknesses provide a wide range of material options for customers.

Alumina-silicate needled blanket applications

Industrial building materials kilns, heating equipment, high-temperature pipeline linings

High-Temperature Filtration Material

Furnace door and roof insulation

Electric Boilers, Gas Turbines, and Nuclear Power Insulation

Insulating materials for high-temperature reaction equipment and heating equipment in the chemical industry

High-rise fire and thermal insulation

Alumina silicate needled blanket general specifications and sizes: (mm)

7200*610（1200）*20

5000*610*30

3600（4000）*610*40           

3000（3600）*610*50

3000*610*60

15000*610/1220*10mm

Bulk density 90-128 (kg/m³)  Packaging in woven bags, two rolls per package

Langfang Guoyang Energy-Saving Technology Co., Ltd. is a professional manufacturer of aluminum silicate products. Guoyang Company earns trust through sincerity, offering competitive prices,热情服务, and rewarding our extensive customer base. Our main products include composite high-silica aluminum modules, aluminum silicate tubes and shells, aluminum silicate needled felts, aluminum silicate boards, and aluminum silicate fiber cotton, all of which have received positive feedback from users.