Extruded Ceramic Filters for foundry ferrous castings molten metal filtration

Extruded ceramic filters for foundry molten metal filtration

Extruded Ceramic Filters can effectively capture inclusions and reduce turbulence of the molten metal. Mullite based ceramic material could withstand heavy pouring thermal shock and extreme pouring temperature. The cellular design also provides an engineered balance between flow rate and strength. The extruded ceramic filters have excellent properties of precise dimension, good thermal stability, high specific surface area and resistance to acid and alkali. The extruded ceramic filters are applicable to wide and extensive filtration applications of ferrous and non-ferrous metal castings.


  • Excellent strength and heat resistance
  • Precise size
  • Stable control of metal flow
  • Completely eliminate dregs

Physical Property:

  • Main material: Mullite, SiO2
  • Working Temperature: ≤1520℃
  • Color: White
  • CSI (cells per square inch): 50/100/200/300
  • Porosity (%): 35-60
  • Compressive Strength (Mpa): ≥20 (Room temperature)
  • Bulk Density(g/cm3): 0.8-1.2
  • Thermal shock resistance: ≥2times/1100℃-Room temperature
  • Dimensions: Length (Diameter)*Width*Thickness = (37-150)*(37-150)*(8-25) mm
  • Shapes: Round, square and rectangle
  • Size tolerance: -1mm ~1mm


Application of extruded ceramic filters in iron castings filtration


Great heat resistance and high strength ensure the extruded ceramic filter or pressed ceramic filter working effectively.

Pressed ceramic filters


Round hole pressed ceramic filter

Honeycomb extruded ceramic filters


Square hole extruded ceramic filter