Established 1982

Aluminum Ceramic Foam Filter

Aluminum Processing Aids


Our Silicon Carbide Ceramic Foam Filter employs German-imported polyurethane foam sponge as a carrier, infused with silicon carbide. This innovative process involves embedding the foam sponge with a slurry of silicon carbide, which forms a robust ceramic structure after drying and high-temperature baking. The decomposition of polyurethane leaves behind a highly efficient filtering medium.


Featuring a three-dimensional mesh interconnection structure, our Silicon Carbide Ceramic Foam Filter enhances metal liquid filtration through mechanisms such as rectification, mechanical screening, and adsorption. This effectively improves metal purity, reduces waste, and minimizes mechanical processing losses, thereby enhancing production efficiency and reducing costs.


The filter’s high strength, thermal stability, large surface area, and precise sizing make it ideal for filtering and purifying ductile cast iron, ash cast iron, aluminum, copper, and other alloy metal liquids. It effectively removes large inclusions, adsorbs impurities, and reduces gas content, thereby enhancing the mechanical properties of castings and improving overall product quality.


Alumina Ceramic Foam Filter


Our Alumina Ceramic Foam Filter represents a breakthrough in filtering technology with its low density, high porosity, and three-dimensional network skeleton structure. Widely utilized in the aluminum processing industry, it enhances the quality of molten aluminum by effectively removing non-metallic solid mixtures and trapped gases.


This filter facilitates laminar flow, resulting in cleaner metal and higher-quality castings with fewer defects. Its high porosity, mechanical strength, chemical stability, corrosion resistance, and thermal shock resistance make it indispensable for the purification process of aluminum and other non-ferrous alloys.


Equipped with various types of gaskets for secure positioning, our Alumina Ceramic Foam Filter finds applications in continuous casting, gravity casting, and low-pressure casting of aluminum and its alloys. Additionally, it serves as a versatile medium for gas-solid and liquid-solid separation, catalyst support, and environmental protection applications.


Zirconia Ceramic Foam Filter


The Zirconia Ceramic Foam Filter optimizes metal flow rates through rectification, minimizing secondary inclusions and pores. By reducing casting defects and waste, it enhances the surface quality and mechanical properties of castings, ensuring superior performance in various applications.


Ideal for the filtration of stainless steel, carbon steel, and large castings, our Zirconia Ceramic Foam Filter offers unparalleled efficiency and reliability. Its advanced design and robust construction make it a preferred choice for industries requiring high-quality metal castings.


These Ceramic Foam Filters revolutionize metal casting processes by delivering unmatched filtration efficiency, purity, and performance across diverse applications. Trust in our filters to elevate your casting operations to new heights of excellence.

Technique Data

Technique Data of Silicon Carbide Ceramic Foam Filter:


Composition of product Silicon Carbide,AL2O3,SiO ect
Color Grey,Dark Grey
Using Temperature ≤1550℃
Number of hole density PP(holes per square inch) 10,15,20,30
Porosity 85%-90%
CMOR Mpa ≥1.5Mpa(Industry Standard 1.0Mpa)
Bulk Density 0.4g/cm3~0.5g/cm3


Square specification(mm) Max filtering capacity(kg) Normal metal fluid flow velocity(kg/s) Round Specification(mm) Max filtering capacity(kg) Normal metal fluid flow velocity(kg/s)
Ductile cast iron Ash cast iron/copper-aluminum castings Ductile cast iron Ash cast iron/copper-aluminum castings Ductile cast iron Ash cast iron/copper-aluminum castings Ductile cast iron Ash cast iron/copper-aluminum castings
40*40*22 32 64 3 4 Φ40*22 25 50 2 3.5
50*50*22 50 100 4 6 Φ50*22 35 70 3 4.5
60*60*22 72 144 5 8 Φ60*22 50 100 4.2 6.5
75*50*22 75 150 6 9 Φ70*22 75 150 5.5 8.8
100*50*22 100 200 8 12 Φ80*22 100 200 7.2 11
75*75*22 110 220 9 14 Φ90*22 120 240 9 14
80*80*22 150 300 12 18 Φ100*22 140 280 11 17
100*100*22 200 400 16 24 Φ110*22 190 380 13 20
150*100*22 300 600 24 36 Φ120*22 230 460 16 25
150*150*22 450 900 36 54 Φ150*22 350 700 25 30


Technique Data of Alumina Ceramic Foam Filter:


Porosity(%) 80-90%
Working Temperature ≤1100℃
Bending Strength (Mpa) 0.6
Compression Strength (Mpa) 0.8
Thermal Shock Resistance 1100℃—room temperature 6 times
Bulk Density 0.35-0.45 g/cm3


Technique Data of Zirconia Foam Ceramic Filter:


L * W * T / Diameter *thick (mm) Filter capacity (kg) The pouring flow (kg/s) direct channel is 300mm high
High degree of deoxygenation Low degree of deoxygenation Carbon-based steel castings Stainless steel casting pieces
50Dx20 30 90 2.0 3.0
70Dx25 60 175 3.8 5.7
90Dx25 95 285 6.4 9.5
125Dx30 185 550 12.2 18.4
150Dx30 265 795 17.7 26.5
50x50x20 35 110 2.5 3.7
50x75x25 55 170 3.7 5.6
75x75x25 85 255 5.6 8.4
100x100x25 150 450 10.0 15.0
125x125x30 235 700 15.6 23.4
150x150x30 340 1010 22.5 33.7


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Established 1982