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Alumina ceramic foam filter


Alumina Ceramic Foam Filters mainly for filtration of aluminium and aluminium alloys in foundries and cast houses. With their excellent resistance to attack and corrosion from molten aluminum, they can effectively remove inclusions, reduce trapped gas and provide laminar flow, and then the filtered metal is significantly cleaner. Cleaner metal results in higher-quality castings, less scrap, and fewer inclusion defects, all of which contribute to bottom-line profit.


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Alumina Ceramic Foam Filters Common Size

Alumina Ceramic Foam Filters is available in all common sizes: 7", 9", 12", 15", 17", 20", and 23". We offers the whole range of porosities from PPI 10 up to PPI 60 (PPI = pores per inch). Custom-made cut-to-size filters are also possible. 

Alumina Ceramic Foam Filters Gasketing

Alumina Ceramic Foam Filters is equipped with a gasket on the edges. The gasket assures the proper and tight position of the filter within the filter box. There are different types of gasket available, eg. Ceramic fibre gasket etc. Also you can choose Alumina Ceramic Foam Filters without gasket.

Chemical Composition of 17%AL2O3 Inert Alumina Ceramic Ball - Catalyst Support Media
Working ≤1200°C
Porosity 80~90%
Compression Strength (Room Temperature) ≥1.0Mpa
Volume Density ≤0.5g/cm3
Thermal Shock Resistance 800°C---room temperature 5 times
Application non-ferrous and alumina alloys, high temperature gasfilter, chemical fillings and catalysis carrier etc.
Chemical Composition of 17%AL2O3 Inert Alumina Ceramic Ball - Catalyst Support Media
Al2O3 80~82% SiC ---
SiO2 5~6% ZrO2 ---
Others 12~15%    
Pouring Rate and Filtration Capacity
Dimensions(mm) Dimensions(inch) Pouring Rate(kg/s) Filtration Capacity(ton)
178x178x50 7x7x2 0.2-0.6 5
228x228x50 9x9x2 0.3-1.0 10
305x305x50 12x12x2 0.8-2.5 15
381x381x50 15x15x2 2.2-4.5 25
430x430x50 17x17x2 3.0-5.5 35
508x508x50 20x20x2 4.0-6.5 45
585x585x50 23x23x2 5.0-8.6 60

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