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High density alumina linings. XIETA® - 92

High density alumina linings are used to avoid the contamination produced by oxide transferred to the material grinded in all types of ball mills. These linings are installed and fixed to the inside of the metallic part (drum) of the mill, avoiding  the balls, raw materials and water, to get in touch with the metallic drum.

Xieta International, S.L., manufactures high density pieces (bricks) for all kind of diameter mills, from small ones starting at 600 mm up to 3,800 mm, or even bigger ones. The different lining thicknesses available are 40, 60, 70 and 100 mm, depending on the specific diameter of each mill and all the necessary applications.

It is extremely important for both lining maintenance and durability that the working milling conditions (speed mill rotation, balls charge, etc.), are the adequate. Xieta International, S.L., has available high qualified technicians for any specific advice for all our customers.

  • General Properties

    Main Raw Material

    Calcined Alumina

    Alumina Content (%)

    ≥ 92

    Specific Weight (g/cm3)

    3.65 ± 0.05



    Mohs Hardness


    Vickers Hardness (0.5 kg)

    1200 ± 50

    Bending Strength (MPa)

    340 ± 30

    Compressive Strength (MPa)

    2300 ± 50

    Thermal Expansion Coef. (20-1000 oC)

    8.2 ± 0.5

  • Chemical Composition

    Al2O3 (%)

    ≥ 92

    SiO2 (%)

    ≥ 5.62

    CaO (%)

    ≤ 1.48

    Na2O (%)

    < 0.1

    Others (%)

    ≥ 0.8

  • Available Lining Measurements (mm)




    Length (L) 150 150 150 150 Length (L) 150 150 150 150
    Width (W) 50 50 50 50 Width(W1 ) 50 50 50 50
    Thickness (H) 40




    Width(W2 )












    Data and specifications contained in this web may be subject to any change or modification by the manufacturer without notice.

    In case you need any clarification or you have any query, please contact our technical department.



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C/Travessera de Gràcia 62, At. 7.
08006 - Barcelona-Spain

C/Cantabria, 10 - POL INDUSTRIAL EL COLADOR, onda,
12200 - Castellon - Spain

Telf.: +34 934 147 227

Fax: +34 934 142 837

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Technical assistance milling | Technical query with our technical department.

We offer a personalized grinding technical advisory service.

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