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Special-shaped Aluminosilicate Fiber Products

Our special-shaped aluminosilicate fiber product line includes pre-fabricated observation holes, shot plugs, and casting risers among others.

  • Details
    • Commodity name: Special-shaped Aluminosilicate Fiber Products

    Our special-shaped aluminosilicate fiber product line includes pre-fabricated observation holes, shot plugs, and casting risers among others.

    Product Description

    Our special-shaped aluminosilicate fiber product line includes pre-fabricated observation holes, shot plugs, and casting risers among others. They are produced with ceramic fiber wool using the vacuum forming process. With precision process and advanced equipment, each product features a smooth surface, essential hardness and elasticity suitable for both mechanical and manual handling. We provide a range of custom shapes and sizes, such as tubular, conical, domed, and square ones, tailored to meet specific client requirements. Our ceramic fiber insulation risers are well-suited for casting both non-ferrous and ferrous metals, delivering exceptional thermal insulation. They can prevent shrinkage and porosity in castings, and ultimately improve the casting quality. Additionally, our shot plugs effectively isolate impurities in molten steel and iron, ensuring top-notch product quality.

    Product Features

    ○ Low heat capacity;

    ○ Low thermal conductivity;

    ○ Excellent thermal shock resistance and wind corrosion resistance;

    ○ Good volume stability.

    ○High compressive strength

    Performance Parameters

    Name/ItemNormal typeStandard typeHigh purity typeHigh-aluminum typeZirconium-containing type
    Classification temperature (℃)11001260130014001400
    Operating temperature (℃)<10001050110012001350
    Bulk density (Kg/m3)250250250250250
    350350350350350
    Chemical composition(%)Al2O3444547-4952-5539-40
    ZrO2----15-17

    Product Application

    Slag stopper for metallurgical industry;

    Fire viewing hole for kiln;

    Industrial kiln door, burner brick;

    Melting trenches, groove backing and casting risers for non-ferrous metal industry;

    Industrial kiln observation hole, thermometer temperature measuring hole;

    The liquid collection tank and flow tank in the production of aluminum products.


①  Zibo Mingzhuo Energy-saving Materials Co., Ltd. is a leading manufacturer of high-temperature insulation fiber products and one of the pioneering manufacturers in China engaged in the R&D and manufacturing of aluminosilicate fiber materials., and can customize the products required by customers.
②  We have a perfect after-sales service system, which can track the problems encountered by customers in production at any time and provide corresponding technical support, so as to share our high-quality resources with customers.
③ After more than ten years of development, the company has complete product varieties and large inventory, which can be delivered in the shortest time.
④ Free samples are available.
⑤ With obvious price advantage, the company has complete production process, from raw materials to finished products integrated production can maximize the cost savings.  


To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.


Our professional team, with decades of experience, adheres steadfastly to scientific and technological production standards, prioritizes independent research and development, and possesses a strong production capacity.

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