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Ceramic Foam Filter

Ceramic Foam Filter

Zirconia Ceramic Foam Filter

Zirconia molten metal foam filter uses high-purity zirconia as the basic raw material, which can withstand high temperatures above 1700°C.

It has very high strength and excellent resistance to high thermal shock, and stable in texture, not easy to be damaged and slag.

The best choice for filtering of determined for all types of steel such as non-alloy, low alloy, stainless steel and high alloy.

Filters are recommended especially for high quality grades of alloys.


Zirconia ceramic foam filters are used to melt all types of steel such as non-alloy, low alloy, stainless steel and high alloy. Filters are especially recommended for alloys of high quality grades.

They have good resistance to attack and corrosion of liquid steel, can effectively remove inclusions in liquid metal, reduce trapped gas in liquid metal, and provide laminar flow, so that the filtered metal is significantly clean. Cleaner metals lead to higher quality castings, less scrap and fewer inclusion defects. They are the best choice for filtering of determined for filtering of steel and steel alloys up to the temperature of 1700℃.

Application: For the filtration of molten steel and alloy, large scale iron casting.

Zirconia Ceramic Foam Filter


● Reduction in inclusion levels

● Good filtration capacity

● Ideal for the filtration of high alloyed steel

● High efficiency

● Filters can be preheated for investment casting application

Technical Parameters:

TypeZirconia ceramic foam filter for steel and high alloy
Al2O3 (%)5-10
Bulk Density0.8-1.5g/cm3
Compressive strength≥1.5Mpa(Room temperature)
PPI10-40PPI(PPI=pores per inch)
Work Temperature≤1700℃
Thermal shock resistance  (Times/1100°C)6

Normal Specifications:

Dimensions (mm)Zirconia Ceramic Foam Filter
Pouring Rate(kg)Filtration Capacity(kg)
Dia 50×222~618
Dia 80×226~1050
Dia 90×228~1670

Currently there is a large scale ceramic production line in our factory, we can produce many types of zironia ceramic foam filters according to clients' own requirements.

Our Zirconia ceramic foam filters have been passed RoHS And Reach test and certified.

Zirconia Ceramic Foam Filter


Filters are recommended especially for high quality grades of alloys

Filtration of molten steel and alloy

Filtration of large scale iron casting

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Contact Us

+86 158 3011 4065

+86 158 3011 4065

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